Vision test has additive effect on concussion detection in athletes

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Vision test has additive effect on concussion detection in athletes

Concussion in athletes was detected with greater accuracy when a simple vision test was added to other established tests in a prospective study of 217 members of the men’s football, women’s soccer, and women’s lacrosse teams at the University of Florida.

All concussive cases were correctly identified when the King-Devick (K-D) test was used in conjunction with the Balance Error Scoring System (BESS), which is part of the Sports Concussion Assessment Tool 3 (SCAT3), Dr. Laura Balcer and her associates reported Feb. 26 in an abstract released in advance of the annual meeting of the American Academy of Neurology in Philadelphia.

Furthermore, differences between baseline assessments and postinjury assessment showed that the K-D test identified a higher percentage of athletes with worsened scores than did the Standardized Assessment of Concussion (SAC) test (79% vs. 52%).

Using the K-D and SAC tests together also was better than using either of the tests alone, with 89% of concussions identified.

In a statement issued by the AAN, Dr. Balcer of the departments of population health and neurology at New York University noted that "the visual pathways are commonly affected in concussion. [And] adding a vision based test to evaluate athletes on the sidelines may allow us to better detect more athletes with concussion more quickly. This is particularly important since not all athletes reliably report their symptoms of concussion."

The findings add to previous work by Dr. Balcer and her colleagues in a similarly sized cohort of athletes from the University of Pennsylvania varsity football, sprint football, and women’s and men’s soccer and basketball teams (J. Neurol. Sci. 2011;309:34-9), and lend further support for the use of the K-D test as a rapid screening tool to assess players’ concussion during sporting events.

Up to 3.8 million sports-related concussive injuries have been estimated to occur in the United States each year, with diagnosis based on a variety of symptoms and signs that may include headache, unsteadiness, confusion, or behavior that is out of character for the individual concerned. It is important to be able to assess head injuries quickly, as concussion may be a result of a more serious neurological injury that needs emergency hospital treatment.

Unlike other tests for concussion that ideally need to be administered by a medical professional, anyone can administer the K-D test. This, together with the fact it takes less than 1 minute to complete, makes it ideal to use on the sidelines as an objective means of whether a concussive injury warrants more urgent attention.

The K-D test was developed in 1976 and assesses saccade, or the quick, simultaneous movement of both eyes in the same direction, as well as subjects’ language and level of concentration. It involves subjects’ quickly reading aloud a series of single-digit numbers shown to them on three test cards of increasing complexity. Subjects read the test cards from left to right and a stopwatch is used to record the time it takes them to complete each one. A time score is then obtained as the sum of all three test card times.

For the present study, the University of Florida sports teams administered several tests for concussion at the beginning of their seasons and again if concussion was suspected during the season. Thirty athletes experienced a first concussion during their athletic season.

The researchers found that worsening symptom severity scores obtained using the Post-Concussion Scale correlated strongly with increasing time to complete the K-D test (P less than .001).

"Among specific symptoms, light and noise sensitivities were particularly well correlated with K-D worsening," Dr. Balcer and her colleagues wrote in their abstract.

Furthermore, athletes who took longer to complete the K-D test at baseline had worse baseline score for visual motor speed assessed using the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) scale, which was conducted as part of routine clinical practice for concussion management but not diagnoses.

"The implications are that adding a vision-based test to sideline concussion assessment enables us to have a group of tests – a composite – that, when used together, can potentially help identify athletes with concussion," Dr. Balcer commented in an interview.

"A group of tests also helps add to clinical diagnosis of concussion immediately post injury by testing the brain’s many pathways that can be affected, including vision, cognition, and balance," she said.

"While no one test or group of tests can substitute for the fact that concussion is a clinical diagnosis, based on the judgment of the health care provider, trainer, parent, or athlete, having quick sideline tools that can be easily administered by laypeople adds an important element to how we identify concussions among youth athletes," Dr. Balcer observed. Young athletes are a particular group for which athletic trainers and physicians are not usually available on the sidelines.

 

 

The K-D test is relevant to any sporting activity in which there is likely to be physical contact between players or there is a chance of head injury or collision. In addition to football, soccer, and lacrosse, its use has been tested in sports such as boxing (Neurology 2011;76:1456-62), basketball (J. Neurol. Sci. 2011;309:34-9), ice hockey (J. Neurol. Sci. 2013;328:28-31), and rugby (J. Neurol. Sci. 2013;326:59-63).

The study was partly supported by the National Institutes of Health. Dr. Balcer declared no relevant conflicts of interest.

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Concussion in athletes was detected with greater accuracy when a simple vision test was added to other established tests in a prospective study of 217 members of the men’s football, women’s soccer, and women’s lacrosse teams at the University of Florida.

All concussive cases were correctly identified when the King-Devick (K-D) test was used in conjunction with the Balance Error Scoring System (BESS), which is part of the Sports Concussion Assessment Tool 3 (SCAT3), Dr. Laura Balcer and her associates reported Feb. 26 in an abstract released in advance of the annual meeting of the American Academy of Neurology in Philadelphia.

Furthermore, differences between baseline assessments and postinjury assessment showed that the K-D test identified a higher percentage of athletes with worsened scores than did the Standardized Assessment of Concussion (SAC) test (79% vs. 52%).

Using the K-D and SAC tests together also was better than using either of the tests alone, with 89% of concussions identified.

In a statement issued by the AAN, Dr. Balcer of the departments of population health and neurology at New York University noted that "the visual pathways are commonly affected in concussion. [And] adding a vision based test to evaluate athletes on the sidelines may allow us to better detect more athletes with concussion more quickly. This is particularly important since not all athletes reliably report their symptoms of concussion."

The findings add to previous work by Dr. Balcer and her colleagues in a similarly sized cohort of athletes from the University of Pennsylvania varsity football, sprint football, and women’s and men’s soccer and basketball teams (J. Neurol. Sci. 2011;309:34-9), and lend further support for the use of the K-D test as a rapid screening tool to assess players’ concussion during sporting events.

Up to 3.8 million sports-related concussive injuries have been estimated to occur in the United States each year, with diagnosis based on a variety of symptoms and signs that may include headache, unsteadiness, confusion, or behavior that is out of character for the individual concerned. It is important to be able to assess head injuries quickly, as concussion may be a result of a more serious neurological injury that needs emergency hospital treatment.

Unlike other tests for concussion that ideally need to be administered by a medical professional, anyone can administer the K-D test. This, together with the fact it takes less than 1 minute to complete, makes it ideal to use on the sidelines as an objective means of whether a concussive injury warrants more urgent attention.

The K-D test was developed in 1976 and assesses saccade, or the quick, simultaneous movement of both eyes in the same direction, as well as subjects’ language and level of concentration. It involves subjects’ quickly reading aloud a series of single-digit numbers shown to them on three test cards of increasing complexity. Subjects read the test cards from left to right and a stopwatch is used to record the time it takes them to complete each one. A time score is then obtained as the sum of all three test card times.

For the present study, the University of Florida sports teams administered several tests for concussion at the beginning of their seasons and again if concussion was suspected during the season. Thirty athletes experienced a first concussion during their athletic season.

The researchers found that worsening symptom severity scores obtained using the Post-Concussion Scale correlated strongly with increasing time to complete the K-D test (P less than .001).

"Among specific symptoms, light and noise sensitivities were particularly well correlated with K-D worsening," Dr. Balcer and her colleagues wrote in their abstract.

Furthermore, athletes who took longer to complete the K-D test at baseline had worse baseline score for visual motor speed assessed using the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) scale, which was conducted as part of routine clinical practice for concussion management but not diagnoses.

"The implications are that adding a vision-based test to sideline concussion assessment enables us to have a group of tests – a composite – that, when used together, can potentially help identify athletes with concussion," Dr. Balcer commented in an interview.

"A group of tests also helps add to clinical diagnosis of concussion immediately post injury by testing the brain’s many pathways that can be affected, including vision, cognition, and balance," she said.

"While no one test or group of tests can substitute for the fact that concussion is a clinical diagnosis, based on the judgment of the health care provider, trainer, parent, or athlete, having quick sideline tools that can be easily administered by laypeople adds an important element to how we identify concussions among youth athletes," Dr. Balcer observed. Young athletes are a particular group for which athletic trainers and physicians are not usually available on the sidelines.

 

 

The K-D test is relevant to any sporting activity in which there is likely to be physical contact between players or there is a chance of head injury or collision. In addition to football, soccer, and lacrosse, its use has been tested in sports such as boxing (Neurology 2011;76:1456-62), basketball (J. Neurol. Sci. 2011;309:34-9), ice hockey (J. Neurol. Sci. 2013;328:28-31), and rugby (J. Neurol. Sci. 2013;326:59-63).

The study was partly supported by the National Institutes of Health. Dr. Balcer declared no relevant conflicts of interest.

Concussion in athletes was detected with greater accuracy when a simple vision test was added to other established tests in a prospective study of 217 members of the men’s football, women’s soccer, and women’s lacrosse teams at the University of Florida.

All concussive cases were correctly identified when the King-Devick (K-D) test was used in conjunction with the Balance Error Scoring System (BESS), which is part of the Sports Concussion Assessment Tool 3 (SCAT3), Dr. Laura Balcer and her associates reported Feb. 26 in an abstract released in advance of the annual meeting of the American Academy of Neurology in Philadelphia.

Furthermore, differences between baseline assessments and postinjury assessment showed that the K-D test identified a higher percentage of athletes with worsened scores than did the Standardized Assessment of Concussion (SAC) test (79% vs. 52%).

Using the K-D and SAC tests together also was better than using either of the tests alone, with 89% of concussions identified.

In a statement issued by the AAN, Dr. Balcer of the departments of population health and neurology at New York University noted that "the visual pathways are commonly affected in concussion. [And] adding a vision based test to evaluate athletes on the sidelines may allow us to better detect more athletes with concussion more quickly. This is particularly important since not all athletes reliably report their symptoms of concussion."

The findings add to previous work by Dr. Balcer and her colleagues in a similarly sized cohort of athletes from the University of Pennsylvania varsity football, sprint football, and women’s and men’s soccer and basketball teams (J. Neurol. Sci. 2011;309:34-9), and lend further support for the use of the K-D test as a rapid screening tool to assess players’ concussion during sporting events.

Up to 3.8 million sports-related concussive injuries have been estimated to occur in the United States each year, with diagnosis based on a variety of symptoms and signs that may include headache, unsteadiness, confusion, or behavior that is out of character for the individual concerned. It is important to be able to assess head injuries quickly, as concussion may be a result of a more serious neurological injury that needs emergency hospital treatment.

Unlike other tests for concussion that ideally need to be administered by a medical professional, anyone can administer the K-D test. This, together with the fact it takes less than 1 minute to complete, makes it ideal to use on the sidelines as an objective means of whether a concussive injury warrants more urgent attention.

The K-D test was developed in 1976 and assesses saccade, or the quick, simultaneous movement of both eyes in the same direction, as well as subjects’ language and level of concentration. It involves subjects’ quickly reading aloud a series of single-digit numbers shown to them on three test cards of increasing complexity. Subjects read the test cards from left to right and a stopwatch is used to record the time it takes them to complete each one. A time score is then obtained as the sum of all three test card times.

For the present study, the University of Florida sports teams administered several tests for concussion at the beginning of their seasons and again if concussion was suspected during the season. Thirty athletes experienced a first concussion during their athletic season.

The researchers found that worsening symptom severity scores obtained using the Post-Concussion Scale correlated strongly with increasing time to complete the K-D test (P less than .001).

"Among specific symptoms, light and noise sensitivities were particularly well correlated with K-D worsening," Dr. Balcer and her colleagues wrote in their abstract.

Furthermore, athletes who took longer to complete the K-D test at baseline had worse baseline score for visual motor speed assessed using the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) scale, which was conducted as part of routine clinical practice for concussion management but not diagnoses.

"The implications are that adding a vision-based test to sideline concussion assessment enables us to have a group of tests – a composite – that, when used together, can potentially help identify athletes with concussion," Dr. Balcer commented in an interview.

"A group of tests also helps add to clinical diagnosis of concussion immediately post injury by testing the brain’s many pathways that can be affected, including vision, cognition, and balance," she said.

"While no one test or group of tests can substitute for the fact that concussion is a clinical diagnosis, based on the judgment of the health care provider, trainer, parent, or athlete, having quick sideline tools that can be easily administered by laypeople adds an important element to how we identify concussions among youth athletes," Dr. Balcer observed. Young athletes are a particular group for which athletic trainers and physicians are not usually available on the sidelines.

 

 

The K-D test is relevant to any sporting activity in which there is likely to be physical contact between players or there is a chance of head injury or collision. In addition to football, soccer, and lacrosse, its use has been tested in sports such as boxing (Neurology 2011;76:1456-62), basketball (J. Neurol. Sci. 2011;309:34-9), ice hockey (J. Neurol. Sci. 2013;328:28-31), and rugby (J. Neurol. Sci. 2013;326:59-63).

The study was partly supported by the National Institutes of Health. Dr. Balcer declared no relevant conflicts of interest.

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Vision test has additive effect on concussion detection in athletes
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FROM THE 2014 AAN ANNUAL MEETING

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Inside the Article

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Major finding: 89%-100% of concussive injuries were identified when the King-Devick test was combined with standard concussion tests.

Data source: A prospective study of 217 male and female athletes at risk for sporting-related concussion.

Disclosures: The study was partly supported by the National Institutes of Health. Dr. Balcer declared no relevant conflicts of interest.

AAN issues nonvalvular atrial fibrillation stroke prevention guideline

'Tepid guidelines' miss opportunity
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AAN issues nonvalvular atrial fibrillation stroke prevention guideline

A new evidence-based guideline on how to identify and treat patients with nonvalvular atrial fibrillation to prevent cardioembolic stroke from the American Academy of Neurology suggests when to conduct cardiac rhythm monitoring and offer anticoagulation, including newer agents in place of warfarin.

But the guideline might already be outdated in not considering the results of the recent CRYSTAL-AF study, in which long-term cardiac rhythm monitoring of patients with a previous cryptogenic stroke detected asymptomatic patients at a significantly higher rate than did standard monitoring methods.

Dr. Antonio Culebras

The guideline also extends the routine use of anticoagulation for patients with nonvalvular atrial fibrillation (NVAF) who are generally undertreated or whose health was thought a possible barrier to their use, such as those aged 75 years or older, those with mild dementia, and those at moderate risk of falls.

"Cognizant of the global reach of the AAN [American Academy of Neurology], the guideline also examines the evidence base for a treatment alternative to warfarin or its analogues for patients in developing countries who may not have access to the new oral anticoagulants," said lead author Dr. Antonio Culebras in an interview.

"The World Health Organization has determined that atrial fibrillation has reached near-epidemic proportions," observed Dr. Culebras of the State University of New York, Syracuse. "Approximately 1 in 20 individuals with AF will have a stroke unless treated appropriately."

The risk for stroke among patients with NVAF is highest in those with a history of transient ischemic attack (TIA) or prior stroke, at an absolute value of around 10% per year. Patients with "lone NVAF," meaning they have no additional risk factors, have less than a 2% increased risk of stroke per year.

The AAN issued a practice parameter on this topic in 1998 (Neurology 1998;51:671-3). At the time, warfarin, adjusted to an international normalized ratio (INR) of 2.0, was, and largely remains, the recommended standard for patients at risk for cardioembolic stroke. Aspirin was the only recommended alterative for those unable to receive the vitamin K antagonist or who were deemed to be at low risk of stroke, although the evidence was scanty.

Since then, several new oral anticoagulant agents have become available, including the direct thrombin inhibitor dabigatran (Pradaxa), and two factor Xa inhibitors – rivaroxaban (Xarelto) and apixaban (Eliquis) – which have been shown to be at least as effective as, if not more effective than, warfarin. Cardiac rhythm monitoring via a variety of methods has also been introduced as a means to try to detect NVAF in asymptomatic patients.

The aim of the AAN guideline (Neurology 2014;82:716-24) was therefore to look at the latest evidence on the detection of AF using new technologies, as well as the use of treatments to reduce the risk of stroke without increasing the risk of hemorrhage versus the long-standing standard of therapy, warfarin. Data published from 1998 to March 2013 were considered in the preparation of the guideline.

Cardiac rhythm monitoring for NVAF

Seventeen studies were found that examined the use of cardiac monitoring technologies to detect new cases of NVAF. The most common methods used were 24-hour Holter monitoring and serial electrocardiograms, but some emerging evidence on newer technologies was included. The proportion of patients identified with NVAF ranged from 0% to 23%, with the average detection rate 10.7% in all of the studies included.

"The guideline addresses the question of long-term monitoring of patients with NVAF," Dr. Culebras said. "It recommends that clinicians ‘might’ [level C evidence] obtain outpatient cardiac rhythm studies in patients with cryptogenic stroke without known NVAF to identify patients with occult NVAF." He added that the guideline also recommends that monitoring might be needed for prolonged periods of 1 or more weeks rather than for shorter periods, such as 24 hours.

However, at the time the guideline was being prepared, recent data from the CRYSTAL-AF study were not available, and this means the guideline is already outdated, Dr. Richard A. Bernstein, professor of neurology at Northwestern University, Chicago, said in an interview. He was not a guideline author.

Dr. Bernstein was on the steering committee for the CRYSTAL-AF trial, which assessed the performance of Medtronic’s Reveal XT Insertable Cardiac Monitor and found that the implanted device could detect NVAF better than serial ECGs or Holter monitoring (8.6% vs. 1.4%; P = .0006); most (74%) cases of NVAF found were asymptomatic.*

"CRYSTAL-AF represents the state of the art for cardiac monitoring in cryptogenic stroke patients and makes the AAN guidelines obsolete," Dr. Berstein said. "[The study] shows that even intermediate-term monitoring (less than 1 month) will miss the majority of AF in this population, and that most of the AF we find with long-term (greater than 1 year) monitoring is likely to be clinically significant."

 

 

With regard to the AAN guideline, he added: "There is no discussion of truly long-term monitoring in the guideline, which is unfortunate." That said, "anything that gets neurologists thinking about long-term cardiac monitoring is likely to be beneficial."

Anticoagulation for stroke prevention

The AAN guideline also provides general recommendations on the use of novel oral anticoagulant agents (NOACs) as alternatives to warfarin. Specifically, it notes that in comparison with warfarin, these NOACs are probably at least as effective (rivaroxaban) or more effective (dabigatran and apixaban). Additionally, while apixaban is also likely to be more effective than aspirin, it is associated with a similar risk for bleeding. NOACs have the following advantages over warfarin: an overall lower risk of intracranial hemorrhage and no need for routine anticoagulant monitoring.

From a practical perspective, the AAN guideline suggests that clinicians have the following options available: warfarin to reach an INR of 2.0-3.0, dabigatran 150 mg twice daily, rivaroxaban 15-20 mg/dL, apixaban 2.5-5 mg twice a day, and triflusal 600 mg plus acenocoumarol to reach an INR target of 1.25-2.0. If a patient is already taking warfarin and is well controlled, then they should remain on that therapy and not switch to a newer oral anticoagulant.

The guideline also notes that clopidogrel plus aspirin is probably less effective than warfarin, but the combination is probably better than aspirin alone. However, the risk of hemorrhage is higher.

Where used, triflusal plus acenocoumarol is "likely more effective" than acenocoumarol alone. Triflusal is an antiplatelet drug related to aspirin, used in Europe, Latin America, and Southeast Asia. Acenocoumarol is mostly used in European countries.

Dr. Culebras explained that the guideline was not intended to dictate which treatment to use. "The guideline leaves room on purpose for clinicians to use their judgment," he said. "The overall objective of the guideline is to reduce therapeutic uncertainty and not to issue commandments for treatment."

Although Dr. Bernstein was critical of the guidelines for not advocating the use of anticoagulants strongly enough, he said that the recommendations on anticoagulant choice are "reasonable in that they impute potential clinical profiles of patients who might particularly benefit from one NOAC over another, without making a claim that these recommendations are based on solid data. This reflects how doctors make decisions when we don’t have direct comparative studies, and I think that is helpful."

The guideline was developed with financial support from the American Academy of Neurology. None of the authors received reimbursement, honoraria, or stipends for their participation in the development of the guideline.

Dr. Culebras has received one-time funding for travel from J. Uriach & Co, and he serves on the editorial boards of MedLink, UpToDate.com, and the International Journal of Stroke. He has received royalties from Informa Healthcare and Cambridge University Press, and has held stock in Clinical Stroke Research. Other authors reported current or past ties to companies marketing oral anticoagulants and stroke treatments.

Dr. Bernstein was on the steering committee for the CRYSTAL-AF study and is a paid speaker, researcher, and consultant for Medtronic, Bristol-Myers Squibb, Pfizer, Boehringer Ingelheim, and Lifewatch.

*Correction, 4/8/2014: The article previously misstated what the implantable device was detecting in the CRYSTAL-AF study.

Body


Dr. Richard Bernstein

These guidelines are a missed opportunity to empower neurologists to advocate in favor of anticoagulation to prevent stroke. The biggest public health problem in AF is that only half of patients who need anticoagulation are getting it. This disgraceful state of affairs results in patients having cardioembolic strokes that are fatal or worse and that could have been prevented. We neurologists see these complications of inadequate treatment and should be on the front lines of prevention. These tepid guidelines give as much space to bleeding as they do to ischemic stroke prevention, which is inappropriate, and I fear will make neurologists, who are not terribly assertive under any circumstances, even less willing to push doctors to use anticoagulants. 

I would have been happier with a single page that said: "Stop using aspirin. Patients fear major stroke more than they fear bleeding or death, and they are right. Stop undertreating your patients and start preventing strokes." 

Dr. Richard A. Bernstein is professor of neurology and director of the stroke program at Northwestern University, Chicago. 

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Dr. Richard Bernstein

These guidelines are a missed opportunity to empower neurologists to advocate in favor of anticoagulation to prevent stroke. The biggest public health problem in AF is that only half of patients who need anticoagulation are getting it. This disgraceful state of affairs results in patients having cardioembolic strokes that are fatal or worse and that could have been prevented. We neurologists see these complications of inadequate treatment and should be on the front lines of prevention. These tepid guidelines give as much space to bleeding as they do to ischemic stroke prevention, which is inappropriate, and I fear will make neurologists, who are not terribly assertive under any circumstances, even less willing to push doctors to use anticoagulants. 

I would have been happier with a single page that said: "Stop using aspirin. Patients fear major stroke more than they fear bleeding or death, and they are right. Stop undertreating your patients and start preventing strokes." 

Dr. Richard A. Bernstein is professor of neurology and director of the stroke program at Northwestern University, Chicago. 

Body


Dr. Richard Bernstein

These guidelines are a missed opportunity to empower neurologists to advocate in favor of anticoagulation to prevent stroke. The biggest public health problem in AF is that only half of patients who need anticoagulation are getting it. This disgraceful state of affairs results in patients having cardioembolic strokes that are fatal or worse and that could have been prevented. We neurologists see these complications of inadequate treatment and should be on the front lines of prevention. These tepid guidelines give as much space to bleeding as they do to ischemic stroke prevention, which is inappropriate, and I fear will make neurologists, who are not terribly assertive under any circumstances, even less willing to push doctors to use anticoagulants. 

I would have been happier with a single page that said: "Stop using aspirin. Patients fear major stroke more than they fear bleeding or death, and they are right. Stop undertreating your patients and start preventing strokes." 

Dr. Richard A. Bernstein is professor of neurology and director of the stroke program at Northwestern University, Chicago. 

Title
'Tepid guidelines' miss opportunity
'Tepid guidelines' miss opportunity

A new evidence-based guideline on how to identify and treat patients with nonvalvular atrial fibrillation to prevent cardioembolic stroke from the American Academy of Neurology suggests when to conduct cardiac rhythm monitoring and offer anticoagulation, including newer agents in place of warfarin.

But the guideline might already be outdated in not considering the results of the recent CRYSTAL-AF study, in which long-term cardiac rhythm monitoring of patients with a previous cryptogenic stroke detected asymptomatic patients at a significantly higher rate than did standard monitoring methods.

Dr. Antonio Culebras

The guideline also extends the routine use of anticoagulation for patients with nonvalvular atrial fibrillation (NVAF) who are generally undertreated or whose health was thought a possible barrier to their use, such as those aged 75 years or older, those with mild dementia, and those at moderate risk of falls.

"Cognizant of the global reach of the AAN [American Academy of Neurology], the guideline also examines the evidence base for a treatment alternative to warfarin or its analogues for patients in developing countries who may not have access to the new oral anticoagulants," said lead author Dr. Antonio Culebras in an interview.

"The World Health Organization has determined that atrial fibrillation has reached near-epidemic proportions," observed Dr. Culebras of the State University of New York, Syracuse. "Approximately 1 in 20 individuals with AF will have a stroke unless treated appropriately."

The risk for stroke among patients with NVAF is highest in those with a history of transient ischemic attack (TIA) or prior stroke, at an absolute value of around 10% per year. Patients with "lone NVAF," meaning they have no additional risk factors, have less than a 2% increased risk of stroke per year.

The AAN issued a practice parameter on this topic in 1998 (Neurology 1998;51:671-3). At the time, warfarin, adjusted to an international normalized ratio (INR) of 2.0, was, and largely remains, the recommended standard for patients at risk for cardioembolic stroke. Aspirin was the only recommended alterative for those unable to receive the vitamin K antagonist or who were deemed to be at low risk of stroke, although the evidence was scanty.

Since then, several new oral anticoagulant agents have become available, including the direct thrombin inhibitor dabigatran (Pradaxa), and two factor Xa inhibitors – rivaroxaban (Xarelto) and apixaban (Eliquis) – which have been shown to be at least as effective as, if not more effective than, warfarin. Cardiac rhythm monitoring via a variety of methods has also been introduced as a means to try to detect NVAF in asymptomatic patients.

The aim of the AAN guideline (Neurology 2014;82:716-24) was therefore to look at the latest evidence on the detection of AF using new technologies, as well as the use of treatments to reduce the risk of stroke without increasing the risk of hemorrhage versus the long-standing standard of therapy, warfarin. Data published from 1998 to March 2013 were considered in the preparation of the guideline.

Cardiac rhythm monitoring for NVAF

Seventeen studies were found that examined the use of cardiac monitoring technologies to detect new cases of NVAF. The most common methods used were 24-hour Holter monitoring and serial electrocardiograms, but some emerging evidence on newer technologies was included. The proportion of patients identified with NVAF ranged from 0% to 23%, with the average detection rate 10.7% in all of the studies included.

"The guideline addresses the question of long-term monitoring of patients with NVAF," Dr. Culebras said. "It recommends that clinicians ‘might’ [level C evidence] obtain outpatient cardiac rhythm studies in patients with cryptogenic stroke without known NVAF to identify patients with occult NVAF." He added that the guideline also recommends that monitoring might be needed for prolonged periods of 1 or more weeks rather than for shorter periods, such as 24 hours.

However, at the time the guideline was being prepared, recent data from the CRYSTAL-AF study were not available, and this means the guideline is already outdated, Dr. Richard A. Bernstein, professor of neurology at Northwestern University, Chicago, said in an interview. He was not a guideline author.

Dr. Bernstein was on the steering committee for the CRYSTAL-AF trial, which assessed the performance of Medtronic’s Reveal XT Insertable Cardiac Monitor and found that the implanted device could detect NVAF better than serial ECGs or Holter monitoring (8.6% vs. 1.4%; P = .0006); most (74%) cases of NVAF found were asymptomatic.*

"CRYSTAL-AF represents the state of the art for cardiac monitoring in cryptogenic stroke patients and makes the AAN guidelines obsolete," Dr. Berstein said. "[The study] shows that even intermediate-term monitoring (less than 1 month) will miss the majority of AF in this population, and that most of the AF we find with long-term (greater than 1 year) monitoring is likely to be clinically significant."

 

 

With regard to the AAN guideline, he added: "There is no discussion of truly long-term monitoring in the guideline, which is unfortunate." That said, "anything that gets neurologists thinking about long-term cardiac monitoring is likely to be beneficial."

Anticoagulation for stroke prevention

The AAN guideline also provides general recommendations on the use of novel oral anticoagulant agents (NOACs) as alternatives to warfarin. Specifically, it notes that in comparison with warfarin, these NOACs are probably at least as effective (rivaroxaban) or more effective (dabigatran and apixaban). Additionally, while apixaban is also likely to be more effective than aspirin, it is associated with a similar risk for bleeding. NOACs have the following advantages over warfarin: an overall lower risk of intracranial hemorrhage and no need for routine anticoagulant monitoring.

From a practical perspective, the AAN guideline suggests that clinicians have the following options available: warfarin to reach an INR of 2.0-3.0, dabigatran 150 mg twice daily, rivaroxaban 15-20 mg/dL, apixaban 2.5-5 mg twice a day, and triflusal 600 mg plus acenocoumarol to reach an INR target of 1.25-2.0. If a patient is already taking warfarin and is well controlled, then they should remain on that therapy and not switch to a newer oral anticoagulant.

The guideline also notes that clopidogrel plus aspirin is probably less effective than warfarin, but the combination is probably better than aspirin alone. However, the risk of hemorrhage is higher.

Where used, triflusal plus acenocoumarol is "likely more effective" than acenocoumarol alone. Triflusal is an antiplatelet drug related to aspirin, used in Europe, Latin America, and Southeast Asia. Acenocoumarol is mostly used in European countries.

Dr. Culebras explained that the guideline was not intended to dictate which treatment to use. "The guideline leaves room on purpose for clinicians to use their judgment," he said. "The overall objective of the guideline is to reduce therapeutic uncertainty and not to issue commandments for treatment."

Although Dr. Bernstein was critical of the guidelines for not advocating the use of anticoagulants strongly enough, he said that the recommendations on anticoagulant choice are "reasonable in that they impute potential clinical profiles of patients who might particularly benefit from one NOAC over another, without making a claim that these recommendations are based on solid data. This reflects how doctors make decisions when we don’t have direct comparative studies, and I think that is helpful."

The guideline was developed with financial support from the American Academy of Neurology. None of the authors received reimbursement, honoraria, or stipends for their participation in the development of the guideline.

Dr. Culebras has received one-time funding for travel from J. Uriach & Co, and he serves on the editorial boards of MedLink, UpToDate.com, and the International Journal of Stroke. He has received royalties from Informa Healthcare and Cambridge University Press, and has held stock in Clinical Stroke Research. Other authors reported current or past ties to companies marketing oral anticoagulants and stroke treatments.

Dr. Bernstein was on the steering committee for the CRYSTAL-AF study and is a paid speaker, researcher, and consultant for Medtronic, Bristol-Myers Squibb, Pfizer, Boehringer Ingelheim, and Lifewatch.

*Correction, 4/8/2014: The article previously misstated what the implantable device was detecting in the CRYSTAL-AF study.

A new evidence-based guideline on how to identify and treat patients with nonvalvular atrial fibrillation to prevent cardioembolic stroke from the American Academy of Neurology suggests when to conduct cardiac rhythm monitoring and offer anticoagulation, including newer agents in place of warfarin.

But the guideline might already be outdated in not considering the results of the recent CRYSTAL-AF study, in which long-term cardiac rhythm monitoring of patients with a previous cryptogenic stroke detected asymptomatic patients at a significantly higher rate than did standard monitoring methods.

Dr. Antonio Culebras

The guideline also extends the routine use of anticoagulation for patients with nonvalvular atrial fibrillation (NVAF) who are generally undertreated or whose health was thought a possible barrier to their use, such as those aged 75 years or older, those with mild dementia, and those at moderate risk of falls.

"Cognizant of the global reach of the AAN [American Academy of Neurology], the guideline also examines the evidence base for a treatment alternative to warfarin or its analogues for patients in developing countries who may not have access to the new oral anticoagulants," said lead author Dr. Antonio Culebras in an interview.

"The World Health Organization has determined that atrial fibrillation has reached near-epidemic proportions," observed Dr. Culebras of the State University of New York, Syracuse. "Approximately 1 in 20 individuals with AF will have a stroke unless treated appropriately."

The risk for stroke among patients with NVAF is highest in those with a history of transient ischemic attack (TIA) or prior stroke, at an absolute value of around 10% per year. Patients with "lone NVAF," meaning they have no additional risk factors, have less than a 2% increased risk of stroke per year.

The AAN issued a practice parameter on this topic in 1998 (Neurology 1998;51:671-3). At the time, warfarin, adjusted to an international normalized ratio (INR) of 2.0, was, and largely remains, the recommended standard for patients at risk for cardioembolic stroke. Aspirin was the only recommended alterative for those unable to receive the vitamin K antagonist or who were deemed to be at low risk of stroke, although the evidence was scanty.

Since then, several new oral anticoagulant agents have become available, including the direct thrombin inhibitor dabigatran (Pradaxa), and two factor Xa inhibitors – rivaroxaban (Xarelto) and apixaban (Eliquis) – which have been shown to be at least as effective as, if not more effective than, warfarin. Cardiac rhythm monitoring via a variety of methods has also been introduced as a means to try to detect NVAF in asymptomatic patients.

The aim of the AAN guideline (Neurology 2014;82:716-24) was therefore to look at the latest evidence on the detection of AF using new technologies, as well as the use of treatments to reduce the risk of stroke without increasing the risk of hemorrhage versus the long-standing standard of therapy, warfarin. Data published from 1998 to March 2013 were considered in the preparation of the guideline.

Cardiac rhythm monitoring for NVAF

Seventeen studies were found that examined the use of cardiac monitoring technologies to detect new cases of NVAF. The most common methods used were 24-hour Holter monitoring and serial electrocardiograms, but some emerging evidence on newer technologies was included. The proportion of patients identified with NVAF ranged from 0% to 23%, with the average detection rate 10.7% in all of the studies included.

"The guideline addresses the question of long-term monitoring of patients with NVAF," Dr. Culebras said. "It recommends that clinicians ‘might’ [level C evidence] obtain outpatient cardiac rhythm studies in patients with cryptogenic stroke without known NVAF to identify patients with occult NVAF." He added that the guideline also recommends that monitoring might be needed for prolonged periods of 1 or more weeks rather than for shorter periods, such as 24 hours.

However, at the time the guideline was being prepared, recent data from the CRYSTAL-AF study were not available, and this means the guideline is already outdated, Dr. Richard A. Bernstein, professor of neurology at Northwestern University, Chicago, said in an interview. He was not a guideline author.

Dr. Bernstein was on the steering committee for the CRYSTAL-AF trial, which assessed the performance of Medtronic’s Reveal XT Insertable Cardiac Monitor and found that the implanted device could detect NVAF better than serial ECGs or Holter monitoring (8.6% vs. 1.4%; P = .0006); most (74%) cases of NVAF found were asymptomatic.*

"CRYSTAL-AF represents the state of the art for cardiac monitoring in cryptogenic stroke patients and makes the AAN guidelines obsolete," Dr. Berstein said. "[The study] shows that even intermediate-term monitoring (less than 1 month) will miss the majority of AF in this population, and that most of the AF we find with long-term (greater than 1 year) monitoring is likely to be clinically significant."

 

 

With regard to the AAN guideline, he added: "There is no discussion of truly long-term monitoring in the guideline, which is unfortunate." That said, "anything that gets neurologists thinking about long-term cardiac monitoring is likely to be beneficial."

Anticoagulation for stroke prevention

The AAN guideline also provides general recommendations on the use of novel oral anticoagulant agents (NOACs) as alternatives to warfarin. Specifically, it notes that in comparison with warfarin, these NOACs are probably at least as effective (rivaroxaban) or more effective (dabigatran and apixaban). Additionally, while apixaban is also likely to be more effective than aspirin, it is associated with a similar risk for bleeding. NOACs have the following advantages over warfarin: an overall lower risk of intracranial hemorrhage and no need for routine anticoagulant monitoring.

From a practical perspective, the AAN guideline suggests that clinicians have the following options available: warfarin to reach an INR of 2.0-3.0, dabigatran 150 mg twice daily, rivaroxaban 15-20 mg/dL, apixaban 2.5-5 mg twice a day, and triflusal 600 mg plus acenocoumarol to reach an INR target of 1.25-2.0. If a patient is already taking warfarin and is well controlled, then they should remain on that therapy and not switch to a newer oral anticoagulant.

The guideline also notes that clopidogrel plus aspirin is probably less effective than warfarin, but the combination is probably better than aspirin alone. However, the risk of hemorrhage is higher.

Where used, triflusal plus acenocoumarol is "likely more effective" than acenocoumarol alone. Triflusal is an antiplatelet drug related to aspirin, used in Europe, Latin America, and Southeast Asia. Acenocoumarol is mostly used in European countries.

Dr. Culebras explained that the guideline was not intended to dictate which treatment to use. "The guideline leaves room on purpose for clinicians to use their judgment," he said. "The overall objective of the guideline is to reduce therapeutic uncertainty and not to issue commandments for treatment."

Although Dr. Bernstein was critical of the guidelines for not advocating the use of anticoagulants strongly enough, he said that the recommendations on anticoagulant choice are "reasonable in that they impute potential clinical profiles of patients who might particularly benefit from one NOAC over another, without making a claim that these recommendations are based on solid data. This reflects how doctors make decisions when we don’t have direct comparative studies, and I think that is helpful."

The guideline was developed with financial support from the American Academy of Neurology. None of the authors received reimbursement, honoraria, or stipends for their participation in the development of the guideline.

Dr. Culebras has received one-time funding for travel from J. Uriach & Co, and he serves on the editorial boards of MedLink, UpToDate.com, and the International Journal of Stroke. He has received royalties from Informa Healthcare and Cambridge University Press, and has held stock in Clinical Stroke Research. Other authors reported current or past ties to companies marketing oral anticoagulants and stroke treatments.

Dr. Bernstein was on the steering committee for the CRYSTAL-AF study and is a paid speaker, researcher, and consultant for Medtronic, Bristol-Myers Squibb, Pfizer, Boehringer Ingelheim, and Lifewatch.

*Correction, 4/8/2014: The article previously misstated what the implantable device was detecting in the CRYSTAL-AF study.

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Persistent depression doubled coronary heart disease risk

Depression may be a marker of occult vascular disease
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Persistent depression doubled coronary heart disease risk

Depressive symptoms significantly increased the risk of coronary heart disease in a long-term study of more than 10,000 patients, suggesting that depression may be a modifiable cardiovascular risk factor.

Data from the prospective cohort Whitehall II study showed a dose-dependent increase in CHD risk with repeated observation of depressive symptoms. The presence of depressive symptoms identified on one or two occasions using the 30-item General Health Questionnaire (GHQ-30) was associated with a significant 12% increase in CHD risk (hazard ratio, 1.12). However, if depressive symptoms were recorded at three or four assessment points, the risk of CHD risk doubled significantly (HR, 2.06).

Depression was also measured using the more specific Center for Epidemiologic Studies Depression Scale (CES-D), with a significant 81% increase in CHD risk if depressive symptoms were evident (HR, 1.81).

In contrast, significant positive associations between depression and the development of stroke seen in the first 5 years of follow-up in the study (HR, 1.6) were not sustained in the long term (HR, 0.94 at 5-10 years’ follow-up).

The Whitehall II study began in 1985 to look at the long-term importance of social class on health. A baseline survey and subsequent clinical examination resulted in 10,308 men and women aged 35-55 years being recruited from 1985 to 1988. Clinical examinations were undertaken every 5 years, with postal surveys undertaken in between, and included the completion of the GHQ-30. The 20-item CES-D was also completed during one assessment period, between 2003 and 2009.

The results from the GHQ-30 were validated against clinical interviews, with a score of 0 representing no change and higher scores reflecting an increase in depressive symptoms. GHQ-30 "caseness" was defined as a score of 5 or more. CES-D caseness was defined as a score of 16 or more out of a maximum of 60.

National databases and records were used to identify cases of fatal and nonfatal cardiovascular events, stroke, and associated mortality. The MONICA-Augsburg Stroke Symptom Questionnaire was used to capture clinical symptoms of stroke, in addition to self-reported events collected throughout the study.

The mean age of participants at the first GHQ-30 measurement was 44 years, and was 61 years by the fourth assessment in 2003-2004. The majority (90%) of participants described themselves as white, and 67% of the cohort was male.

"We investigated the possibility of reverse causation by examining the association between prevalent major CHD or prevalent stroke with subsequent incidence of GHQ-30 caseness," the Whitehall II investigators noted in the study, which was published online in the European Journal of Preventative Cardiology (doi:10.1177/2047487314520785).

Although they found weak evidence that CHD was significantly associated with subsequent GHQ-30 caseness (odds ratio, 1.32), they did find a significant association between prevalent stroke and depressive symptoms (OR, 2.01).

It is not clear why depressive symptoms might be causally linked to CHD but not stroke. One plausible explanation is that it could be linked to blood pressure – a particularly important risk factor for stroke, but only one of many for CHD. Depressive symptoms have been linked to low blood pressure, "and this inverse association would tend to confound the association with stroke to a greater extent than with CHD," the authors noted. Antihypertensive medications might also be causing depression or psychological distress, the authors suggested.

"European prevention guidelines refer to depression as a coronary risk factor," noted lead author Dr. Eric Brunner of University College London in a press release issued by the European Society of Cardiology. "In our study, repeated episodes of depressive symptoms accounted for 10% of all CHD events in the study population." That figure suggests the existence of a causal relationship between depression and heart disease.

"Whether or not the association is causal, supporting individuals to recover from chronic or repeated episodes of depression has merit, particularly if the individual is then better able to reduce any vascular risk – for example, by quitting smoking."

More research is needed to examine the uncertainties regarding depression as a causal factor in CHD and stroke, Dr. Brunner and his associates concluded.

The research was funded by grants from the British Medical Research Council, the British Heart Foundation, the British Health and Safety Executive, the British Department of Health, the British Stroke Association, the U.S. National Heart, Lung, and Blood Institute, and the U.S. National Institute on Aging. The investigators had no conflicts of interest to disclose.

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This is an interesting study in a large number of patients that suggests – to my knowledge, for the first time – that the association of depression with stroke may be "reverse causation," meaning that some vascular abnormality contributes to the depression and not necessarily that the depression is directly related to the stroke.

In contrast, depression does seem to be related to developing coronary heart disease. The findings are interesting. They support what many have thought for years, that depression is a risk factor for heart disease.

On the other hand, the idea that depression may be a marker of occult vascular disease that can lead to a stroke is novel, but needs careful confirmation because it has not been shown previously. Previous studies suggest that depression is a risk factor for stroke more directly, like the coronary heart disease relationship.

Dr. Paul Thompson is medical director of cardiology and the Athletes’ Heart Program at Hartford Hospital and professor of medicine at the University of Connecticut. Dr. Thompson said he had no relevant conflicts of interest to disclose.

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This is an interesting study in a large number of patients that suggests – to my knowledge, for the first time – that the association of depression with stroke may be "reverse causation," meaning that some vascular abnormality contributes to the depression and not necessarily that the depression is directly related to the stroke.

In contrast, depression does seem to be related to developing coronary heart disease. The findings are interesting. They support what many have thought for years, that depression is a risk factor for heart disease.

On the other hand, the idea that depression may be a marker of occult vascular disease that can lead to a stroke is novel, but needs careful confirmation because it has not been shown previously. Previous studies suggest that depression is a risk factor for stroke more directly, like the coronary heart disease relationship.

Dr. Paul Thompson is medical director of cardiology and the Athletes’ Heart Program at Hartford Hospital and professor of medicine at the University of Connecticut. Dr. Thompson said he had no relevant conflicts of interest to disclose.

Body

This is an interesting study in a large number of patients that suggests – to my knowledge, for the first time – that the association of depression with stroke may be "reverse causation," meaning that some vascular abnormality contributes to the depression and not necessarily that the depression is directly related to the stroke.

In contrast, depression does seem to be related to developing coronary heart disease. The findings are interesting. They support what many have thought for years, that depression is a risk factor for heart disease.

On the other hand, the idea that depression may be a marker of occult vascular disease that can lead to a stroke is novel, but needs careful confirmation because it has not been shown previously. Previous studies suggest that depression is a risk factor for stroke more directly, like the coronary heart disease relationship.

Dr. Paul Thompson is medical director of cardiology and the Athletes’ Heart Program at Hartford Hospital and professor of medicine at the University of Connecticut. Dr. Thompson said he had no relevant conflicts of interest to disclose.

Title
Depression may be a marker of occult vascular disease
Depression may be a marker of occult vascular disease

Depressive symptoms significantly increased the risk of coronary heart disease in a long-term study of more than 10,000 patients, suggesting that depression may be a modifiable cardiovascular risk factor.

Data from the prospective cohort Whitehall II study showed a dose-dependent increase in CHD risk with repeated observation of depressive symptoms. The presence of depressive symptoms identified on one or two occasions using the 30-item General Health Questionnaire (GHQ-30) was associated with a significant 12% increase in CHD risk (hazard ratio, 1.12). However, if depressive symptoms were recorded at three or four assessment points, the risk of CHD risk doubled significantly (HR, 2.06).

Depression was also measured using the more specific Center for Epidemiologic Studies Depression Scale (CES-D), with a significant 81% increase in CHD risk if depressive symptoms were evident (HR, 1.81).

In contrast, significant positive associations between depression and the development of stroke seen in the first 5 years of follow-up in the study (HR, 1.6) were not sustained in the long term (HR, 0.94 at 5-10 years’ follow-up).

The Whitehall II study began in 1985 to look at the long-term importance of social class on health. A baseline survey and subsequent clinical examination resulted in 10,308 men and women aged 35-55 years being recruited from 1985 to 1988. Clinical examinations were undertaken every 5 years, with postal surveys undertaken in between, and included the completion of the GHQ-30. The 20-item CES-D was also completed during one assessment period, between 2003 and 2009.

The results from the GHQ-30 were validated against clinical interviews, with a score of 0 representing no change and higher scores reflecting an increase in depressive symptoms. GHQ-30 "caseness" was defined as a score of 5 or more. CES-D caseness was defined as a score of 16 or more out of a maximum of 60.

National databases and records were used to identify cases of fatal and nonfatal cardiovascular events, stroke, and associated mortality. The MONICA-Augsburg Stroke Symptom Questionnaire was used to capture clinical symptoms of stroke, in addition to self-reported events collected throughout the study.

The mean age of participants at the first GHQ-30 measurement was 44 years, and was 61 years by the fourth assessment in 2003-2004. The majority (90%) of participants described themselves as white, and 67% of the cohort was male.

"We investigated the possibility of reverse causation by examining the association between prevalent major CHD or prevalent stroke with subsequent incidence of GHQ-30 caseness," the Whitehall II investigators noted in the study, which was published online in the European Journal of Preventative Cardiology (doi:10.1177/2047487314520785).

Although they found weak evidence that CHD was significantly associated with subsequent GHQ-30 caseness (odds ratio, 1.32), they did find a significant association between prevalent stroke and depressive symptoms (OR, 2.01).

It is not clear why depressive symptoms might be causally linked to CHD but not stroke. One plausible explanation is that it could be linked to blood pressure – a particularly important risk factor for stroke, but only one of many for CHD. Depressive symptoms have been linked to low blood pressure, "and this inverse association would tend to confound the association with stroke to a greater extent than with CHD," the authors noted. Antihypertensive medications might also be causing depression or psychological distress, the authors suggested.

"European prevention guidelines refer to depression as a coronary risk factor," noted lead author Dr. Eric Brunner of University College London in a press release issued by the European Society of Cardiology. "In our study, repeated episodes of depressive symptoms accounted for 10% of all CHD events in the study population." That figure suggests the existence of a causal relationship between depression and heart disease.

"Whether or not the association is causal, supporting individuals to recover from chronic or repeated episodes of depression has merit, particularly if the individual is then better able to reduce any vascular risk – for example, by quitting smoking."

More research is needed to examine the uncertainties regarding depression as a causal factor in CHD and stroke, Dr. Brunner and his associates concluded.

The research was funded by grants from the British Medical Research Council, the British Heart Foundation, the British Health and Safety Executive, the British Department of Health, the British Stroke Association, the U.S. National Heart, Lung, and Blood Institute, and the U.S. National Institute on Aging. The investigators had no conflicts of interest to disclose.

Depressive symptoms significantly increased the risk of coronary heart disease in a long-term study of more than 10,000 patients, suggesting that depression may be a modifiable cardiovascular risk factor.

Data from the prospective cohort Whitehall II study showed a dose-dependent increase in CHD risk with repeated observation of depressive symptoms. The presence of depressive symptoms identified on one or two occasions using the 30-item General Health Questionnaire (GHQ-30) was associated with a significant 12% increase in CHD risk (hazard ratio, 1.12). However, if depressive symptoms were recorded at three or four assessment points, the risk of CHD risk doubled significantly (HR, 2.06).

Depression was also measured using the more specific Center for Epidemiologic Studies Depression Scale (CES-D), with a significant 81% increase in CHD risk if depressive symptoms were evident (HR, 1.81).

In contrast, significant positive associations between depression and the development of stroke seen in the first 5 years of follow-up in the study (HR, 1.6) were not sustained in the long term (HR, 0.94 at 5-10 years’ follow-up).

The Whitehall II study began in 1985 to look at the long-term importance of social class on health. A baseline survey and subsequent clinical examination resulted in 10,308 men and women aged 35-55 years being recruited from 1985 to 1988. Clinical examinations were undertaken every 5 years, with postal surveys undertaken in between, and included the completion of the GHQ-30. The 20-item CES-D was also completed during one assessment period, between 2003 and 2009.

The results from the GHQ-30 were validated against clinical interviews, with a score of 0 representing no change and higher scores reflecting an increase in depressive symptoms. GHQ-30 "caseness" was defined as a score of 5 or more. CES-D caseness was defined as a score of 16 or more out of a maximum of 60.

National databases and records were used to identify cases of fatal and nonfatal cardiovascular events, stroke, and associated mortality. The MONICA-Augsburg Stroke Symptom Questionnaire was used to capture clinical symptoms of stroke, in addition to self-reported events collected throughout the study.

The mean age of participants at the first GHQ-30 measurement was 44 years, and was 61 years by the fourth assessment in 2003-2004. The majority (90%) of participants described themselves as white, and 67% of the cohort was male.

"We investigated the possibility of reverse causation by examining the association between prevalent major CHD or prevalent stroke with subsequent incidence of GHQ-30 caseness," the Whitehall II investigators noted in the study, which was published online in the European Journal of Preventative Cardiology (doi:10.1177/2047487314520785).

Although they found weak evidence that CHD was significantly associated with subsequent GHQ-30 caseness (odds ratio, 1.32), they did find a significant association between prevalent stroke and depressive symptoms (OR, 2.01).

It is not clear why depressive symptoms might be causally linked to CHD but not stroke. One plausible explanation is that it could be linked to blood pressure – a particularly important risk factor for stroke, but only one of many for CHD. Depressive symptoms have been linked to low blood pressure, "and this inverse association would tend to confound the association with stroke to a greater extent than with CHD," the authors noted. Antihypertensive medications might also be causing depression or psychological distress, the authors suggested.

"European prevention guidelines refer to depression as a coronary risk factor," noted lead author Dr. Eric Brunner of University College London in a press release issued by the European Society of Cardiology. "In our study, repeated episodes of depressive symptoms accounted for 10% of all CHD events in the study population." That figure suggests the existence of a causal relationship between depression and heart disease.

"Whether or not the association is causal, supporting individuals to recover from chronic or repeated episodes of depression has merit, particularly if the individual is then better able to reduce any vascular risk – for example, by quitting smoking."

More research is needed to examine the uncertainties regarding depression as a causal factor in CHD and stroke, Dr. Brunner and his associates concluded.

The research was funded by grants from the British Medical Research Council, the British Heart Foundation, the British Health and Safety Executive, the British Department of Health, the British Stroke Association, the U.S. National Heart, Lung, and Blood Institute, and the U.S. National Institute on Aging. The investigators had no conflicts of interest to disclose.

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Major finding: Depressive symptoms present at three to four observation points were associated with a hazard ratio of 2.06 for coronary heart disease.

Data source: A prospective cohort study of incident cardiovascular disease in more than 10,000 U.K.-based civil servants with 24 years’ follow-up.

Disclosures: The research was funded by grants from the British Medical Research Council, the British Heart Foundation, the British Health and Safety Executive, the British Department of Health, the British Stroke Association, the U.S. National Heart, Lung, and Blood Institute, and the U.S. National Institute on Aging. The investigators had no relevant financial conflicts to disclose.

Teriflunomide cuts annual MS relapse rate more than a third

Further support for teriflunomide in MS
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Teriflunomide cuts annual MS relapse rate more than a third

Teriflunomide significantly reduced the annualized relapse rate in patients with relapsing-remitting multiple sclerosis by more than one-third, compared with placebo, in the second of two large, randomized, phase III trials that have been conducted with the drug.

The latest study, called TOWER (Teriflunomide Oral in People With Relapsing Multiple Sclerosis), demonstrated that the 14-mg dose of teriflunomide produced a 36% relative risk reduction in the annualized relapse rate, compared with placebo (P = .0001). A 7-mg dose of the oral MS agent yielded a 22% relative risk reduction (P = .0183).

Teriflunomide 14 mg, but not 7 mg, was also associated with a significantly lower sustained disability accumulation than placebo.

"These data support the use of teriflunomide as an initial therapy for patients with relapsing-remitting multiple sclerosis and as an option for patients who are unable to tolerate other disease-modifying therapies," wrote the TOWER Trial Group investigators (Lancet Neurol. 2014 Jan. 23 [doi: 10.1016/S1474-4422(13)70308-9]).

First author Dr. Christian Confavreux of University Claude Bernard Lyon 1, France, and his associates commented that the findings add to those previously reported from the phase III TEMSO trial (N. Engl. J. Med. 2011;365:1293-303), which showed that teriflunomide 7 mg and 14 mg both reduced the annualized relapse rate by around 31% when compared with placebo. They are also supported by the results of a phase II extension study.

Teriflunomide was approved for the treatment of adults with relapsing-remitting MS in the United States (trade name Aubagio) in 2012 and in Europe in 2013. The drug is the principal active metabolite in leflunomide, which is licensed for the treatment of rheumatoid arthritis.

The TOWER trial involved a total of 1,169 patients with relapsing-remitting MS who were randomized to treatment: 408 were assigned to teriflunomide 14 mg, 372 to teriflunomide 7 mg, and 389 to placebo. The mean age of patients at study entry was approximately 38 years, with just over 80% being of white, 15% of Asian, and 2% of black ethnicity.

The annualized relapse rates were 0.50 for patients treated with placebo, 0.32 for patients treated with teriflunomide 14 mg, and 0.39 for those treated with teriflunomide 7 mg. Absolute risk reductions for teriflunomide 14 mg and 7 mg versus placebo were –0.11 and –0.18, respectively.

A key secondary endpoint was sustained accumulation of disability. This was defined as an increase of at least 1 point on the Expanded Disability Status Scale (EDSS) from baseline that persisted for at least 12 weeks. The hazard ratios for the time to sustained accumulation of disability were 0.68 (P = .0442) for the 14-mg dose of teriflunomide and 0.95 for the 7-mg dose versus placebo.

"The safety and tolerability profile of teriflunomide, as characterized in this and previous studies, was similar for both the 7-mg and 14-mg doses, including long-term treatment observations," the investigators wrote. The most common side effects seen in patients treated with teriflunomide were hair thinning, headache, and increase in alanine aminotransferase concentrations.

Genzyme, a Sanofi company, sponsored the trial. The investigators disclosed financial relationships with Genzyme as well as other companies that manufacture drugs used to treat MS.

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The TOWER study findings appear to corroborate the results from the TEMSO trial, which formed the primary basis of teriflunomide’s approval in the United States and Europe.

One of the limitations of the TOWER study perhaps is the relatively high percentage of Asian participants, which raises concern over the generalizability of the results with studies that have been predominantly performed in North American or Western European populations. Additionally, patients were not all exposed to the same duration of treatment with teriflunomide. Rather than a standard 52 or 104 weeks of therapy, patients were treated until 48 weeks after the last patient was randomized into the study. This means that some patients might have been treated for much less or much longer than in other studies. It might provide the opportunity to do post hoc analyses, however, of the few patients that were exposed to treatment for longer.

They noted that it is somewhat surprising that 30% of patients did not complete the study while on study medication given that it is an oral, once-daily treatment, but that rate is in line with the TEMSO trial results and other studies of oral drugs for MS.

MS treatment has become increasingly complex over the years. Head-to-head trials with other oral immunotherapies and more established injectable drugs, such as interferon-beta and glatiramer acetate, are needed, however, to help patients and their physicians when selecting the best overall therapy. Global patient registries of all available treatments are also needed to obtain real-world data on their relative efficacy and safety and to inform clinical decision making.

Dr. Bernd C. Kieseier is professor of clinical and experimental neuroimmunology at Heinrich Heine University in Düsseldorf, Germany. Dr. Heinz Wiendl is professor of neurology and chair of the department of neurology at Westfälische Wilhelms University, Münster. They have received honoraria for lecturing, travel expense reimbursement, and research funding from companies involved in the manufacture of MS drugs. Their commentary is summarized from an editorial accompanying the TOWER trial report (Lancet Neurol. 2014 Jan. 23 [doi: 10.1016/S1474-4422(14)70012-2]).

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The TOWER study findings appear to corroborate the results from the TEMSO trial, which formed the primary basis of teriflunomide’s approval in the United States and Europe.

One of the limitations of the TOWER study perhaps is the relatively high percentage of Asian participants, which raises concern over the generalizability of the results with studies that have been predominantly performed in North American or Western European populations. Additionally, patients were not all exposed to the same duration of treatment with teriflunomide. Rather than a standard 52 or 104 weeks of therapy, patients were treated until 48 weeks after the last patient was randomized into the study. This means that some patients might have been treated for much less or much longer than in other studies. It might provide the opportunity to do post hoc analyses, however, of the few patients that were exposed to treatment for longer.

They noted that it is somewhat surprising that 30% of patients did not complete the study while on study medication given that it is an oral, once-daily treatment, but that rate is in line with the TEMSO trial results and other studies of oral drugs for MS.

MS treatment has become increasingly complex over the years. Head-to-head trials with other oral immunotherapies and more established injectable drugs, such as interferon-beta and glatiramer acetate, are needed, however, to help patients and their physicians when selecting the best overall therapy. Global patient registries of all available treatments are also needed to obtain real-world data on their relative efficacy and safety and to inform clinical decision making.

Dr. Bernd C. Kieseier is professor of clinical and experimental neuroimmunology at Heinrich Heine University in Düsseldorf, Germany. Dr. Heinz Wiendl is professor of neurology and chair of the department of neurology at Westfälische Wilhelms University, Münster. They have received honoraria for lecturing, travel expense reimbursement, and research funding from companies involved in the manufacture of MS drugs. Their commentary is summarized from an editorial accompanying the TOWER trial report (Lancet Neurol. 2014 Jan. 23 [doi: 10.1016/S1474-4422(14)70012-2]).

Body

The TOWER study findings appear to corroborate the results from the TEMSO trial, which formed the primary basis of teriflunomide’s approval in the United States and Europe.

One of the limitations of the TOWER study perhaps is the relatively high percentage of Asian participants, which raises concern over the generalizability of the results with studies that have been predominantly performed in North American or Western European populations. Additionally, patients were not all exposed to the same duration of treatment with teriflunomide. Rather than a standard 52 or 104 weeks of therapy, patients were treated until 48 weeks after the last patient was randomized into the study. This means that some patients might have been treated for much less or much longer than in other studies. It might provide the opportunity to do post hoc analyses, however, of the few patients that were exposed to treatment for longer.

They noted that it is somewhat surprising that 30% of patients did not complete the study while on study medication given that it is an oral, once-daily treatment, but that rate is in line with the TEMSO trial results and other studies of oral drugs for MS.

MS treatment has become increasingly complex over the years. Head-to-head trials with other oral immunotherapies and more established injectable drugs, such as interferon-beta and glatiramer acetate, are needed, however, to help patients and their physicians when selecting the best overall therapy. Global patient registries of all available treatments are also needed to obtain real-world data on their relative efficacy and safety and to inform clinical decision making.

Dr. Bernd C. Kieseier is professor of clinical and experimental neuroimmunology at Heinrich Heine University in Düsseldorf, Germany. Dr. Heinz Wiendl is professor of neurology and chair of the department of neurology at Westfälische Wilhelms University, Münster. They have received honoraria for lecturing, travel expense reimbursement, and research funding from companies involved in the manufacture of MS drugs. Their commentary is summarized from an editorial accompanying the TOWER trial report (Lancet Neurol. 2014 Jan. 23 [doi: 10.1016/S1474-4422(14)70012-2]).

Title
Further support for teriflunomide in MS
Further support for teriflunomide in MS

Teriflunomide significantly reduced the annualized relapse rate in patients with relapsing-remitting multiple sclerosis by more than one-third, compared with placebo, in the second of two large, randomized, phase III trials that have been conducted with the drug.

The latest study, called TOWER (Teriflunomide Oral in People With Relapsing Multiple Sclerosis), demonstrated that the 14-mg dose of teriflunomide produced a 36% relative risk reduction in the annualized relapse rate, compared with placebo (P = .0001). A 7-mg dose of the oral MS agent yielded a 22% relative risk reduction (P = .0183).

Teriflunomide 14 mg, but not 7 mg, was also associated with a significantly lower sustained disability accumulation than placebo.

"These data support the use of teriflunomide as an initial therapy for patients with relapsing-remitting multiple sclerosis and as an option for patients who are unable to tolerate other disease-modifying therapies," wrote the TOWER Trial Group investigators (Lancet Neurol. 2014 Jan. 23 [doi: 10.1016/S1474-4422(13)70308-9]).

First author Dr. Christian Confavreux of University Claude Bernard Lyon 1, France, and his associates commented that the findings add to those previously reported from the phase III TEMSO trial (N. Engl. J. Med. 2011;365:1293-303), which showed that teriflunomide 7 mg and 14 mg both reduced the annualized relapse rate by around 31% when compared with placebo. They are also supported by the results of a phase II extension study.

Teriflunomide was approved for the treatment of adults with relapsing-remitting MS in the United States (trade name Aubagio) in 2012 and in Europe in 2013. The drug is the principal active metabolite in leflunomide, which is licensed for the treatment of rheumatoid arthritis.

The TOWER trial involved a total of 1,169 patients with relapsing-remitting MS who were randomized to treatment: 408 were assigned to teriflunomide 14 mg, 372 to teriflunomide 7 mg, and 389 to placebo. The mean age of patients at study entry was approximately 38 years, with just over 80% being of white, 15% of Asian, and 2% of black ethnicity.

The annualized relapse rates were 0.50 for patients treated with placebo, 0.32 for patients treated with teriflunomide 14 mg, and 0.39 for those treated with teriflunomide 7 mg. Absolute risk reductions for teriflunomide 14 mg and 7 mg versus placebo were –0.11 and –0.18, respectively.

A key secondary endpoint was sustained accumulation of disability. This was defined as an increase of at least 1 point on the Expanded Disability Status Scale (EDSS) from baseline that persisted for at least 12 weeks. The hazard ratios for the time to sustained accumulation of disability were 0.68 (P = .0442) for the 14-mg dose of teriflunomide and 0.95 for the 7-mg dose versus placebo.

"The safety and tolerability profile of teriflunomide, as characterized in this and previous studies, was similar for both the 7-mg and 14-mg doses, including long-term treatment observations," the investigators wrote. The most common side effects seen in patients treated with teriflunomide were hair thinning, headache, and increase in alanine aminotransferase concentrations.

Genzyme, a Sanofi company, sponsored the trial. The investigators disclosed financial relationships with Genzyme as well as other companies that manufacture drugs used to treat MS.

Teriflunomide significantly reduced the annualized relapse rate in patients with relapsing-remitting multiple sclerosis by more than one-third, compared with placebo, in the second of two large, randomized, phase III trials that have been conducted with the drug.

The latest study, called TOWER (Teriflunomide Oral in People With Relapsing Multiple Sclerosis), demonstrated that the 14-mg dose of teriflunomide produced a 36% relative risk reduction in the annualized relapse rate, compared with placebo (P = .0001). A 7-mg dose of the oral MS agent yielded a 22% relative risk reduction (P = .0183).

Teriflunomide 14 mg, but not 7 mg, was also associated with a significantly lower sustained disability accumulation than placebo.

"These data support the use of teriflunomide as an initial therapy for patients with relapsing-remitting multiple sclerosis and as an option for patients who are unable to tolerate other disease-modifying therapies," wrote the TOWER Trial Group investigators (Lancet Neurol. 2014 Jan. 23 [doi: 10.1016/S1474-4422(13)70308-9]).

First author Dr. Christian Confavreux of University Claude Bernard Lyon 1, France, and his associates commented that the findings add to those previously reported from the phase III TEMSO trial (N. Engl. J. Med. 2011;365:1293-303), which showed that teriflunomide 7 mg and 14 mg both reduced the annualized relapse rate by around 31% when compared with placebo. They are also supported by the results of a phase II extension study.

Teriflunomide was approved for the treatment of adults with relapsing-remitting MS in the United States (trade name Aubagio) in 2012 and in Europe in 2013. The drug is the principal active metabolite in leflunomide, which is licensed for the treatment of rheumatoid arthritis.

The TOWER trial involved a total of 1,169 patients with relapsing-remitting MS who were randomized to treatment: 408 were assigned to teriflunomide 14 mg, 372 to teriflunomide 7 mg, and 389 to placebo. The mean age of patients at study entry was approximately 38 years, with just over 80% being of white, 15% of Asian, and 2% of black ethnicity.

The annualized relapse rates were 0.50 for patients treated with placebo, 0.32 for patients treated with teriflunomide 14 mg, and 0.39 for those treated with teriflunomide 7 mg. Absolute risk reductions for teriflunomide 14 mg and 7 mg versus placebo were –0.11 and –0.18, respectively.

A key secondary endpoint was sustained accumulation of disability. This was defined as an increase of at least 1 point on the Expanded Disability Status Scale (EDSS) from baseline that persisted for at least 12 weeks. The hazard ratios for the time to sustained accumulation of disability were 0.68 (P = .0442) for the 14-mg dose of teriflunomide and 0.95 for the 7-mg dose versus placebo.

"The safety and tolerability profile of teriflunomide, as characterized in this and previous studies, was similar for both the 7-mg and 14-mg doses, including long-term treatment observations," the investigators wrote. The most common side effects seen in patients treated with teriflunomide were hair thinning, headache, and increase in alanine aminotransferase concentrations.

Genzyme, a Sanofi company, sponsored the trial. The investigators disclosed financial relationships with Genzyme as well as other companies that manufacture drugs used to treat MS.

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Major finding: The annualized relapse rate was 0.32 for patients treated with teriflunomide 14 mg versus 0.50 for placebo-treated patients (P = .0001).

Data source: An international, multicenter, double-blind, randomized, placebo-controlled phase III trial of 1,169 adults with relapsing-remitting multiple sclerosis.

Disclosures: Genzyme, a Sanofi company, sponsored the trial. The investigators disclosed financial relationships with Genzyme as well as other companies that manufacture drugs used to treat MS.

Fecal immunochemical tests detect most colorectal cancers

Study leaves out advanced adenomas
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Fecal immunochemical tests detect most colorectal cancers

Fecal immunochemical tests have an overall diagnostic accuracy of 95% for the detection of colorectal cancer, according to the results of a meta-analysis just published in the Annals of Internal Medicine.

The tests, which have already begun to replace the fecal occult blood test (FOBT) in national screening programs in the United States, Europe, and Asia, were found to be 79% sensitive and 94% specific for CRC.

"This systematic review and meta-analysis suggests that FITs [fecal immunochemical tests] have high accuracy, high specificity, and moderately high sensitivity for detection of CRC," Dr. Douglas Corley of the Kaiser Permanente division of research in Oakland, Calif., and his associates wrote (Ann. Intern. Med. 2014;160:171-81).

FITs are more sensitive at detecting both CRC and adenomas than the FOBT, they maintained, and are also more practical for people to perform at home, requiring only one or two stool samples and no special dietary or medication restrictions.

Despite a greater potential ease of use for mass screening, reports on the diagnostic performance of FITs have been inconsistent, the investigators explained. They therefore performed the meta-analysis to determine the overall diagnostic accuracy and factors affecting the tests’ performance. Nineteen trials were included that involved more than 113,000 individuals and provided data on eight different FITs available for use in the United States.

In addition to the sensitivities and specificities of FITs, positive and negative likelihood ratios (LR) were calculated to assess the ability of the tests to respectively "rule in" or "rule out" a diagnosis of CRC. The threshold set for a positive LR was a value above 5 and for a negative LR was 0.2. Pooled data from the trials showed a positive LR of 13.10 and a negative LR of 0.23.

Increasing the number of FIT samples did not affect the pooled sensitivities, specificities, positive LRs, or negative LRs of FITs for CRC. There also was no great difference in performance between the FIT brands evaluated in the studies. Dr. Corley and his associates pointed out, however, that head-to-head comparisons were not included in most studies so this finding should be interpreted with caution.

Diagnostic performance was affected by the cutoff values used to define a positive test, which might influence which test health systems decide to use, the researchers said.

"Health systems wishing to optimize use of a quantitative FIT should consider the tradeoff between increasing sensitivity (by lowering the cutoff threshold for a positive test) and the resulting increase in the number of positive results," they wrote. The latter could significantly impact colonoscopy resources if more procedures were indicated by a positive test.

The researchers recommended that health systems also look at individual studies comparing single or repeat testing, as the current data do not provide a definitive answer on the effect of sample number on the performance of FITs.

The National Institute of Diabetes and Digestive and Kidney Diseases and the National Cancer Institute funded the research.

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Dr. Corley and his associates reviewed the world literature to determine performance characteristics of fecal immunochemical tests (FITs) to screen for colorectal cancer. The endpoint of this meta-analysis was diagnosis of CRC. This study did not evaluate FITs for detection of advanced adenomas, which are an important target of screening.

Nineteen studies were included in the analysis (eight FIT products; two no longer used). Most studies did not compare the products head to head. Ten of the studies were performed in Asia. Some of the studies used a qualitative (yes/no) outcome (four products; eight studies); others used quantitative cut-offs. Seven studies used colonoscopy in patients with positive FIT results but relied on 2 years of negative tests by using cancer registries for follow-up. The other studies used colonoscopy in all patients to establish performance. Four studies enrolled patients aged less than 40 years, for whom screening would generally not be recommended.

There are several key results, despite the caveats noted. An important finding is that the result was the same for one, two, or three stool samples, suggesting that one sample is adequate. Second, the performance varied based on the cut-off values, so that a lower cut-off had higher sensitivity (89%) but lower specificity (91%), compared with a sensitivity of 70% for medium cutoff values and a specificity of 95%. The qualitative test (which can be performed in office) was similar to the quantitative FIT.

The analysis helps sort out some of the differences amongst the various FIT products. Clinicians choosing to use FIT need to carefully look at the performance of the test they select. The data are limited to one-time screening with the CRC endpoint and provide no information on programmatic effectiveness of FITs. Finally, the analysis provides no data on FIT performance to detect advanced adenomas.

Dr. David Lieberman, AGAF, is professor of medicine and chief of the division of gastroenterology and hepatology at Oregon Health and Science University in Portland. He is on the scientific advisory boards of Exact Sciences, Given Imaging, and Roche.

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Dr. Corley and his associates reviewed the world literature to determine performance characteristics of fecal immunochemical tests (FITs) to screen for colorectal cancer. The endpoint of this meta-analysis was diagnosis of CRC. This study did not evaluate FITs for detection of advanced adenomas, which are an important target of screening.

Nineteen studies were included in the analysis (eight FIT products; two no longer used). Most studies did not compare the products head to head. Ten of the studies were performed in Asia. Some of the studies used a qualitative (yes/no) outcome (four products; eight studies); others used quantitative cut-offs. Seven studies used colonoscopy in patients with positive FIT results but relied on 2 years of negative tests by using cancer registries for follow-up. The other studies used colonoscopy in all patients to establish performance. Four studies enrolled patients aged less than 40 years, for whom screening would generally not be recommended.

There are several key results, despite the caveats noted. An important finding is that the result was the same for one, two, or three stool samples, suggesting that one sample is adequate. Second, the performance varied based on the cut-off values, so that a lower cut-off had higher sensitivity (89%) but lower specificity (91%), compared with a sensitivity of 70% for medium cutoff values and a specificity of 95%. The qualitative test (which can be performed in office) was similar to the quantitative FIT.

The analysis helps sort out some of the differences amongst the various FIT products. Clinicians choosing to use FIT need to carefully look at the performance of the test they select. The data are limited to one-time screening with the CRC endpoint and provide no information on programmatic effectiveness of FITs. Finally, the analysis provides no data on FIT performance to detect advanced adenomas.

Dr. David Lieberman, AGAF, is professor of medicine and chief of the division of gastroenterology and hepatology at Oregon Health and Science University in Portland. He is on the scientific advisory boards of Exact Sciences, Given Imaging, and Roche.

Body

Dr. Corley and his associates reviewed the world literature to determine performance characteristics of fecal immunochemical tests (FITs) to screen for colorectal cancer. The endpoint of this meta-analysis was diagnosis of CRC. This study did not evaluate FITs for detection of advanced adenomas, which are an important target of screening.

Nineteen studies were included in the analysis (eight FIT products; two no longer used). Most studies did not compare the products head to head. Ten of the studies were performed in Asia. Some of the studies used a qualitative (yes/no) outcome (four products; eight studies); others used quantitative cut-offs. Seven studies used colonoscopy in patients with positive FIT results but relied on 2 years of negative tests by using cancer registries for follow-up. The other studies used colonoscopy in all patients to establish performance. Four studies enrolled patients aged less than 40 years, for whom screening would generally not be recommended.

There are several key results, despite the caveats noted. An important finding is that the result was the same for one, two, or three stool samples, suggesting that one sample is adequate. Second, the performance varied based on the cut-off values, so that a lower cut-off had higher sensitivity (89%) but lower specificity (91%), compared with a sensitivity of 70% for medium cutoff values and a specificity of 95%. The qualitative test (which can be performed in office) was similar to the quantitative FIT.

The analysis helps sort out some of the differences amongst the various FIT products. Clinicians choosing to use FIT need to carefully look at the performance of the test they select. The data are limited to one-time screening with the CRC endpoint and provide no information on programmatic effectiveness of FITs. Finally, the analysis provides no data on FIT performance to detect advanced adenomas.

Dr. David Lieberman, AGAF, is professor of medicine and chief of the division of gastroenterology and hepatology at Oregon Health and Science University in Portland. He is on the scientific advisory boards of Exact Sciences, Given Imaging, and Roche.

Title
Study leaves out advanced adenomas
Study leaves out advanced adenomas

Fecal immunochemical tests have an overall diagnostic accuracy of 95% for the detection of colorectal cancer, according to the results of a meta-analysis just published in the Annals of Internal Medicine.

The tests, which have already begun to replace the fecal occult blood test (FOBT) in national screening programs in the United States, Europe, and Asia, were found to be 79% sensitive and 94% specific for CRC.

"This systematic review and meta-analysis suggests that FITs [fecal immunochemical tests] have high accuracy, high specificity, and moderately high sensitivity for detection of CRC," Dr. Douglas Corley of the Kaiser Permanente division of research in Oakland, Calif., and his associates wrote (Ann. Intern. Med. 2014;160:171-81).

FITs are more sensitive at detecting both CRC and adenomas than the FOBT, they maintained, and are also more practical for people to perform at home, requiring only one or two stool samples and no special dietary or medication restrictions.

Despite a greater potential ease of use for mass screening, reports on the diagnostic performance of FITs have been inconsistent, the investigators explained. They therefore performed the meta-analysis to determine the overall diagnostic accuracy and factors affecting the tests’ performance. Nineteen trials were included that involved more than 113,000 individuals and provided data on eight different FITs available for use in the United States.

In addition to the sensitivities and specificities of FITs, positive and negative likelihood ratios (LR) were calculated to assess the ability of the tests to respectively "rule in" or "rule out" a diagnosis of CRC. The threshold set for a positive LR was a value above 5 and for a negative LR was 0.2. Pooled data from the trials showed a positive LR of 13.10 and a negative LR of 0.23.

Increasing the number of FIT samples did not affect the pooled sensitivities, specificities, positive LRs, or negative LRs of FITs for CRC. There also was no great difference in performance between the FIT brands evaluated in the studies. Dr. Corley and his associates pointed out, however, that head-to-head comparisons were not included in most studies so this finding should be interpreted with caution.

Diagnostic performance was affected by the cutoff values used to define a positive test, which might influence which test health systems decide to use, the researchers said.

"Health systems wishing to optimize use of a quantitative FIT should consider the tradeoff between increasing sensitivity (by lowering the cutoff threshold for a positive test) and the resulting increase in the number of positive results," they wrote. The latter could significantly impact colonoscopy resources if more procedures were indicated by a positive test.

The researchers recommended that health systems also look at individual studies comparing single or repeat testing, as the current data do not provide a definitive answer on the effect of sample number on the performance of FITs.

The National Institute of Diabetes and Digestive and Kidney Diseases and the National Cancer Institute funded the research.

Fecal immunochemical tests have an overall diagnostic accuracy of 95% for the detection of colorectal cancer, according to the results of a meta-analysis just published in the Annals of Internal Medicine.

The tests, which have already begun to replace the fecal occult blood test (FOBT) in national screening programs in the United States, Europe, and Asia, were found to be 79% sensitive and 94% specific for CRC.

"This systematic review and meta-analysis suggests that FITs [fecal immunochemical tests] have high accuracy, high specificity, and moderately high sensitivity for detection of CRC," Dr. Douglas Corley of the Kaiser Permanente division of research in Oakland, Calif., and his associates wrote (Ann. Intern. Med. 2014;160:171-81).

FITs are more sensitive at detecting both CRC and adenomas than the FOBT, they maintained, and are also more practical for people to perform at home, requiring only one or two stool samples and no special dietary or medication restrictions.

Despite a greater potential ease of use for mass screening, reports on the diagnostic performance of FITs have been inconsistent, the investigators explained. They therefore performed the meta-analysis to determine the overall diagnostic accuracy and factors affecting the tests’ performance. Nineteen trials were included that involved more than 113,000 individuals and provided data on eight different FITs available for use in the United States.

In addition to the sensitivities and specificities of FITs, positive and negative likelihood ratios (LR) were calculated to assess the ability of the tests to respectively "rule in" or "rule out" a diagnosis of CRC. The threshold set for a positive LR was a value above 5 and for a negative LR was 0.2. Pooled data from the trials showed a positive LR of 13.10 and a negative LR of 0.23.

Increasing the number of FIT samples did not affect the pooled sensitivities, specificities, positive LRs, or negative LRs of FITs for CRC. There also was no great difference in performance between the FIT brands evaluated in the studies. Dr. Corley and his associates pointed out, however, that head-to-head comparisons were not included in most studies so this finding should be interpreted with caution.

Diagnostic performance was affected by the cutoff values used to define a positive test, which might influence which test health systems decide to use, the researchers said.

"Health systems wishing to optimize use of a quantitative FIT should consider the tradeoff between increasing sensitivity (by lowering the cutoff threshold for a positive test) and the resulting increase in the number of positive results," they wrote. The latter could significantly impact colonoscopy resources if more procedures were indicated by a positive test.

The researchers recommended that health systems also look at individual studies comparing single or repeat testing, as the current data do not provide a definitive answer on the effect of sample number on the performance of FITs.

The National Institute of Diabetes and Digestive and Kidney Diseases and the National Cancer Institute funded the research.

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Major finding: Fecal immunochemical tests are 79% sensitive and 94% specific, with an overall diagnostic accuracy of 95%.

Data source: Systematic review and meta-analysis of 19 studies of more than 113,000 asymptomatic individuals evaluating the diagnostic accuracy of fecal immunochemical tests for colorectal cancer detection.

Disclosures: The National Institute of Diabetes and Digestive and Kidney Diseases and the National Cancer Institute funded the research.

Seemingly pan-negative melanomas may be sensitive to MEK inhibitor

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Seemingly pan-negative melanomas may be sensitive to MEK inhibitor

A small subset of patients with supposedly nongenetically driven melanomas respond to molecularly targeted treatment with an MEK inhibitor, according to recent findings released today.

Two novel genetic fusions involving BRAF – PAPSS1-BRAF and TRIM24-BRAF – were present in 2 of 24 (8%) of pan-negative melanoma samples tested. Both BRAF fusions activate the MAPK signaling pathway, and tumors found harboring either genetic fusion were more sensitive to treatment with trametinib than with the BRAF inhibitor vemurafenib, reported Dr. Jeffrey A. Sosman, professor of medicine, director of the melanoma and tumor immunotherapy program, and co-leader of the VICC signal transduction and cell proliferation research program of the Vanderbilt-Ingram Cancer Center in Nashville, Tenn., and his associates.

"About 35% of melanomas are, as of today, considered pan negative, which means they are devoid of any previously known driver mutations in the genes BRAF, NRAS, KIT, GNAQ, and GNA11," Dr. Sosman explained in a press release issued by the American Association of Cancer Research.

"Our data support the idea that pan-negative cancers are not truly pan negative," he added, noting the results are "important because they suggest that there probably are other, as yet unidentified, molecular changes that make these melanomas susceptible to drugs that are available right now."

Dr. Sosman and his associates have spent several years assessing pan-negative tumors for any potential genetic anomalies other than those already known that could offer targets for molecularly driven treatment. Their discovery of PAPSS1-BRAF came from examination of a sample from a 27-year-old woman with stage IIIC malignant melanoma involving almost all the axillary lymph nodes. Despite irradiation and experimental and standard immunotherapies, the patient progressed rapidly and died just 11 months after her diagnosis.

The patient’s sample had been genotyped using the FoundationOne assay, which examines more than 3,000 exons in 182 cancer-related genes and 37 introns and in 14 genes recurrently rearranged in cancer. The assay simultaneously looks for any single nucleotide variants, insertions, deletions, copy number changes, and selected genetic rearrangements.

They found a large genomic deletion in BRAF and a region on chromosome 7 suggesting that two genes were possibly fused together. Subsequent targeted RNA sequencing of complementary DNA identified PAPSS1-BRAF and further studies showed that it activated the MAPK signaling pathway and that this activation was more sensitive to inhibition with a MEK inhibitor than with a BRAF inhibition.

The team then evaluated a further 51 melanoma samples, of which the majority were supposedly pan negative – only eight had BRAF V600 changes and seven had other, non-V600 changes. TRIM24-BRAF was also identified and found to affect the MAPK signalling pathway and be more sensitive to MEK than BRAF inhibition.

The team also analyzed RNA, whole genome, and whole-exome sequencing data from an independent cutaneous dataset available from the Cancer Genome Atlas (TCGA) and found BRAF fusions in two of 49 of pan-negative melanoma cases researchers.

"Collectively, these data suggest that BRAF fusions exist in 4%-8% of pan-negative melanomas," the researchers reported. "Coupled with the fact that the transforming ability of multiple BRAF fusions has already been established, we believe enough evidence exists to raise awareness that BRAF fusions are present in this ‘pan-negative’ population."

This could have implications for clinical trials involving therapies that target the MAPK signaling pathway and explain why unexpected clinical responses are sometimes seen with MEK inhibitor therapy. The findings could also help clinicians select patients for MEK-directed therapy.

Dr. Sosman and associates conclude (Clin. Cancer Res. 2013 Dec. 17;19:6696-702): "BRAF fusions represent a new, potentially clinically relevant target in melanomas possibly treatable with kinase inhibitors."

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A small subset of patients with supposedly nongenetically driven melanomas respond to molecularly targeted treatment with an MEK inhibitor, according to recent findings released today.

Two novel genetic fusions involving BRAF – PAPSS1-BRAF and TRIM24-BRAF – were present in 2 of 24 (8%) of pan-negative melanoma samples tested. Both BRAF fusions activate the MAPK signaling pathway, and tumors found harboring either genetic fusion were more sensitive to treatment with trametinib than with the BRAF inhibitor vemurafenib, reported Dr. Jeffrey A. Sosman, professor of medicine, director of the melanoma and tumor immunotherapy program, and co-leader of the VICC signal transduction and cell proliferation research program of the Vanderbilt-Ingram Cancer Center in Nashville, Tenn., and his associates.

"About 35% of melanomas are, as of today, considered pan negative, which means they are devoid of any previously known driver mutations in the genes BRAF, NRAS, KIT, GNAQ, and GNA11," Dr. Sosman explained in a press release issued by the American Association of Cancer Research.

"Our data support the idea that pan-negative cancers are not truly pan negative," he added, noting the results are "important because they suggest that there probably are other, as yet unidentified, molecular changes that make these melanomas susceptible to drugs that are available right now."

Dr. Sosman and his associates have spent several years assessing pan-negative tumors for any potential genetic anomalies other than those already known that could offer targets for molecularly driven treatment. Their discovery of PAPSS1-BRAF came from examination of a sample from a 27-year-old woman with stage IIIC malignant melanoma involving almost all the axillary lymph nodes. Despite irradiation and experimental and standard immunotherapies, the patient progressed rapidly and died just 11 months after her diagnosis.

The patient’s sample had been genotyped using the FoundationOne assay, which examines more than 3,000 exons in 182 cancer-related genes and 37 introns and in 14 genes recurrently rearranged in cancer. The assay simultaneously looks for any single nucleotide variants, insertions, deletions, copy number changes, and selected genetic rearrangements.

They found a large genomic deletion in BRAF and a region on chromosome 7 suggesting that two genes were possibly fused together. Subsequent targeted RNA sequencing of complementary DNA identified PAPSS1-BRAF and further studies showed that it activated the MAPK signaling pathway and that this activation was more sensitive to inhibition with a MEK inhibitor than with a BRAF inhibition.

The team then evaluated a further 51 melanoma samples, of which the majority were supposedly pan negative – only eight had BRAF V600 changes and seven had other, non-V600 changes. TRIM24-BRAF was also identified and found to affect the MAPK signalling pathway and be more sensitive to MEK than BRAF inhibition.

The team also analyzed RNA, whole genome, and whole-exome sequencing data from an independent cutaneous dataset available from the Cancer Genome Atlas (TCGA) and found BRAF fusions in two of 49 of pan-negative melanoma cases researchers.

"Collectively, these data suggest that BRAF fusions exist in 4%-8% of pan-negative melanomas," the researchers reported. "Coupled with the fact that the transforming ability of multiple BRAF fusions has already been established, we believe enough evidence exists to raise awareness that BRAF fusions are present in this ‘pan-negative’ population."

This could have implications for clinical trials involving therapies that target the MAPK signaling pathway and explain why unexpected clinical responses are sometimes seen with MEK inhibitor therapy. The findings could also help clinicians select patients for MEK-directed therapy.

Dr. Sosman and associates conclude (Clin. Cancer Res. 2013 Dec. 17;19:6696-702): "BRAF fusions represent a new, potentially clinically relevant target in melanomas possibly treatable with kinase inhibitors."

A small subset of patients with supposedly nongenetically driven melanomas respond to molecularly targeted treatment with an MEK inhibitor, according to recent findings released today.

Two novel genetic fusions involving BRAF – PAPSS1-BRAF and TRIM24-BRAF – were present in 2 of 24 (8%) of pan-negative melanoma samples tested. Both BRAF fusions activate the MAPK signaling pathway, and tumors found harboring either genetic fusion were more sensitive to treatment with trametinib than with the BRAF inhibitor vemurafenib, reported Dr. Jeffrey A. Sosman, professor of medicine, director of the melanoma and tumor immunotherapy program, and co-leader of the VICC signal transduction and cell proliferation research program of the Vanderbilt-Ingram Cancer Center in Nashville, Tenn., and his associates.

"About 35% of melanomas are, as of today, considered pan negative, which means they are devoid of any previously known driver mutations in the genes BRAF, NRAS, KIT, GNAQ, and GNA11," Dr. Sosman explained in a press release issued by the American Association of Cancer Research.

"Our data support the idea that pan-negative cancers are not truly pan negative," he added, noting the results are "important because they suggest that there probably are other, as yet unidentified, molecular changes that make these melanomas susceptible to drugs that are available right now."

Dr. Sosman and his associates have spent several years assessing pan-negative tumors for any potential genetic anomalies other than those already known that could offer targets for molecularly driven treatment. Their discovery of PAPSS1-BRAF came from examination of a sample from a 27-year-old woman with stage IIIC malignant melanoma involving almost all the axillary lymph nodes. Despite irradiation and experimental and standard immunotherapies, the patient progressed rapidly and died just 11 months after her diagnosis.

The patient’s sample had been genotyped using the FoundationOne assay, which examines more than 3,000 exons in 182 cancer-related genes and 37 introns and in 14 genes recurrently rearranged in cancer. The assay simultaneously looks for any single nucleotide variants, insertions, deletions, copy number changes, and selected genetic rearrangements.

They found a large genomic deletion in BRAF and a region on chromosome 7 suggesting that two genes were possibly fused together. Subsequent targeted RNA sequencing of complementary DNA identified PAPSS1-BRAF and further studies showed that it activated the MAPK signaling pathway and that this activation was more sensitive to inhibition with a MEK inhibitor than with a BRAF inhibition.

The team then evaluated a further 51 melanoma samples, of which the majority were supposedly pan negative – only eight had BRAF V600 changes and seven had other, non-V600 changes. TRIM24-BRAF was also identified and found to affect the MAPK signalling pathway and be more sensitive to MEK than BRAF inhibition.

The team also analyzed RNA, whole genome, and whole-exome sequencing data from an independent cutaneous dataset available from the Cancer Genome Atlas (TCGA) and found BRAF fusions in two of 49 of pan-negative melanoma cases researchers.

"Collectively, these data suggest that BRAF fusions exist in 4%-8% of pan-negative melanomas," the researchers reported. "Coupled with the fact that the transforming ability of multiple BRAF fusions has already been established, we believe enough evidence exists to raise awareness that BRAF fusions are present in this ‘pan-negative’ population."

This could have implications for clinical trials involving therapies that target the MAPK signaling pathway and explain why unexpected clinical responses are sometimes seen with MEK inhibitor therapy. The findings could also help clinicians select patients for MEK-directed therapy.

Dr. Sosman and associates conclude (Clin. Cancer Res. 2013 Dec. 17;19:6696-702): "BRAF fusions represent a new, potentially clinically relevant target in melanomas possibly treatable with kinase inhibitors."

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Major finding: Between 4% and 8% of pan-negative melanomas harbor gene fusions involving BRAF and are sensitive to MEK inhibitor treatment.

Data source: Genotyping and RNA sequencing study of 51 pan-negative melanoma samples.

Disclosures: Two of the study’s authors are employees of Foundation Medicine, owner of the next-generation sequencing assay used in the study.

CENTRIC results signal end of cilenglitide in glioblastoma

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CENTRIC results signal end of cilenglitide in glioblastoma

AMSTERDAM – The investigational drug cilenglitide failed to improve overall or progression-free survival when added to standard treatment in patients with newly diagnosed glioblastoma.

Overall survival, the primary endpoint of the CENTRIC study, was 26.3 months in both study arms, with more events occurring in the cilenglitide arm than in the control arm (144 vs. 138; hazard ratio, 1.021; P = .86). "We could not identify any subgroup that actually had a benefit from the addition of cilenglitide," said study investigator Dr. Roger Stupp at the multidisciplinary European cancer congresses.

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Dr. Roger Stupp

Progression-free survival, according to independent review, was also disappointing, at 10.6 months for the cilenglitide group and 7.9 months for the control group (HR, 0.918; P = .41), reported Dr. Stupp of the Centre Hospitalier Universitaire Vaudois in Lausanne, Switzerland.

These findings signal the end of the line for the drug’s development against this tumor, Dr. Stupp remarked in presenting the results of the large phase III study. "I’m not sure we are at the end of targeting integrins, but we have taken a blow with this strategy," he said.

CENTRIC was performed in 545 patients with newly diagnosed disease and a methylated promoter of the O-6-methylguanine-deoxyribonucleic acid methyltransferase (MGMT) gene.

The median age of enrolled patients was 58 years, with 23% aged 65 years or older. A total of 272 patients were randomized to receive cilenglitide in addition to standard chemoradiotherapy and 272 to chemoradiotherapy alone. Cilenglitide was given at an infused IV dose of 2,000 mg twice weekly. Standard chemoradiotherapy consisted of 75 mg/m2 of temozolomide (TMZ), and radiotherapy consisted of a dose of 30 grays in 2-gray fractions, with maintenance TMZ (150-200 mg/m2 for six cycles).

Another trial whose results were presented was the phase II CORE trial, which enrolled 265 patients with newly diagnosed glioblastoma and unmethylated MGMT. Patients were randomized into three groups: a control arm of standard chemotherapy of TMZ plus radiotherapy, and then maintenance TMZ (n = 89); a standard cilenglitide dosing arm, with patients receiving 2,000 mg twice a week in addition to chemoradiotherapy (n = 88); and an intensive dosing arm, with the dose of cilenglitide upped to 2,000 mg five times a week in addition to chemoradiotherapy (n = 88).

Contrary to the CENTRIC study results, the CORE study findings suggested there was a benefit of adding cilenglitide to standard therapy. Median overall survival was 13.4 months in the control arm, but 16.3 months in the standard cilenglitide dosing arm (hazard ratio, 0.69 vs. control). Median overall survival in the intensive treatment arm was 14.5 months (HR, 0.86 vs. control).

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Dr. Michael Brada

Investigator-assessed progression-free survival also suggested a benefit of adding cilenglitide.

"These findings are inconsistent with the larger, phase III CENTRIC clinical trial," said Dr. L. Burt Nabors of the University of Alabama at Birmingham, who presented the CORE findings. "This is a limited study. It was more exploratory in nature, with a sample size that was obviously smaller." He suggested that further investigations are required to look at possible biomarkers.

Commenting on the CENTRIC study, Dr. Michael Brada of University College Hospital, London, observed: "It’s been a bumpy year for randomized trials." Recent trials in glioblastoma have generally been disappointing, and the CENTRIC study results now add to the negative results.

Additional phase I/II trials are investigating the potential of cilenglitide in combination with radiotherapy and chemotherapy in patients with locally advanced non–small cell lung cancer (NCT01118676), and in combination with chemotherapy in patients with recurrent/metastatic squamous cell carcinoma of the head and neck (NCT00705016).

The CENTRIC and CORE studies were sponsored by Merck. Dr. Stupp has received honoraria for consultancy work from Merck Serono, MSD-Merck, and Roche/Genentech. Dr. Nabors had no conflicts of interest to disclose. Dr. Brada has participated on advisory boards for Roche and Merck.

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AMSTERDAM – The investigational drug cilenglitide failed to improve overall or progression-free survival when added to standard treatment in patients with newly diagnosed glioblastoma.

Overall survival, the primary endpoint of the CENTRIC study, was 26.3 months in both study arms, with more events occurring in the cilenglitide arm than in the control arm (144 vs. 138; hazard ratio, 1.021; P = .86). "We could not identify any subgroup that actually had a benefit from the addition of cilenglitide," said study investigator Dr. Roger Stupp at the multidisciplinary European cancer congresses.

Sara Freeman/IMNG Medical Media
Dr. Roger Stupp

Progression-free survival, according to independent review, was also disappointing, at 10.6 months for the cilenglitide group and 7.9 months for the control group (HR, 0.918; P = .41), reported Dr. Stupp of the Centre Hospitalier Universitaire Vaudois in Lausanne, Switzerland.

These findings signal the end of the line for the drug’s development against this tumor, Dr. Stupp remarked in presenting the results of the large phase III study. "I’m not sure we are at the end of targeting integrins, but we have taken a blow with this strategy," he said.

CENTRIC was performed in 545 patients with newly diagnosed disease and a methylated promoter of the O-6-methylguanine-deoxyribonucleic acid methyltransferase (MGMT) gene.

The median age of enrolled patients was 58 years, with 23% aged 65 years or older. A total of 272 patients were randomized to receive cilenglitide in addition to standard chemoradiotherapy and 272 to chemoradiotherapy alone. Cilenglitide was given at an infused IV dose of 2,000 mg twice weekly. Standard chemoradiotherapy consisted of 75 mg/m2 of temozolomide (TMZ), and radiotherapy consisted of a dose of 30 grays in 2-gray fractions, with maintenance TMZ (150-200 mg/m2 for six cycles).

Another trial whose results were presented was the phase II CORE trial, which enrolled 265 patients with newly diagnosed glioblastoma and unmethylated MGMT. Patients were randomized into three groups: a control arm of standard chemotherapy of TMZ plus radiotherapy, and then maintenance TMZ (n = 89); a standard cilenglitide dosing arm, with patients receiving 2,000 mg twice a week in addition to chemoradiotherapy (n = 88); and an intensive dosing arm, with the dose of cilenglitide upped to 2,000 mg five times a week in addition to chemoradiotherapy (n = 88).

Contrary to the CENTRIC study results, the CORE study findings suggested there was a benefit of adding cilenglitide to standard therapy. Median overall survival was 13.4 months in the control arm, but 16.3 months in the standard cilenglitide dosing arm (hazard ratio, 0.69 vs. control). Median overall survival in the intensive treatment arm was 14.5 months (HR, 0.86 vs. control).

Sara Freeman/IMNG Medical Media
Dr. Michael Brada

Investigator-assessed progression-free survival also suggested a benefit of adding cilenglitide.

"These findings are inconsistent with the larger, phase III CENTRIC clinical trial," said Dr. L. Burt Nabors of the University of Alabama at Birmingham, who presented the CORE findings. "This is a limited study. It was more exploratory in nature, with a sample size that was obviously smaller." He suggested that further investigations are required to look at possible biomarkers.

Commenting on the CENTRIC study, Dr. Michael Brada of University College Hospital, London, observed: "It’s been a bumpy year for randomized trials." Recent trials in glioblastoma have generally been disappointing, and the CENTRIC study results now add to the negative results.

Additional phase I/II trials are investigating the potential of cilenglitide in combination with radiotherapy and chemotherapy in patients with locally advanced non–small cell lung cancer (NCT01118676), and in combination with chemotherapy in patients with recurrent/metastatic squamous cell carcinoma of the head and neck (NCT00705016).

The CENTRIC and CORE studies were sponsored by Merck. Dr. Stupp has received honoraria for consultancy work from Merck Serono, MSD-Merck, and Roche/Genentech. Dr. Nabors had no conflicts of interest to disclose. Dr. Brada has participated on advisory boards for Roche and Merck.

AMSTERDAM – The investigational drug cilenglitide failed to improve overall or progression-free survival when added to standard treatment in patients with newly diagnosed glioblastoma.

Overall survival, the primary endpoint of the CENTRIC study, was 26.3 months in both study arms, with more events occurring in the cilenglitide arm than in the control arm (144 vs. 138; hazard ratio, 1.021; P = .86). "We could not identify any subgroup that actually had a benefit from the addition of cilenglitide," said study investigator Dr. Roger Stupp at the multidisciplinary European cancer congresses.

Sara Freeman/IMNG Medical Media
Dr. Roger Stupp

Progression-free survival, according to independent review, was also disappointing, at 10.6 months for the cilenglitide group and 7.9 months for the control group (HR, 0.918; P = .41), reported Dr. Stupp of the Centre Hospitalier Universitaire Vaudois in Lausanne, Switzerland.

These findings signal the end of the line for the drug’s development against this tumor, Dr. Stupp remarked in presenting the results of the large phase III study. "I’m not sure we are at the end of targeting integrins, but we have taken a blow with this strategy," he said.

CENTRIC was performed in 545 patients with newly diagnosed disease and a methylated promoter of the O-6-methylguanine-deoxyribonucleic acid methyltransferase (MGMT) gene.

The median age of enrolled patients was 58 years, with 23% aged 65 years or older. A total of 272 patients were randomized to receive cilenglitide in addition to standard chemoradiotherapy and 272 to chemoradiotherapy alone. Cilenglitide was given at an infused IV dose of 2,000 mg twice weekly. Standard chemoradiotherapy consisted of 75 mg/m2 of temozolomide (TMZ), and radiotherapy consisted of a dose of 30 grays in 2-gray fractions, with maintenance TMZ (150-200 mg/m2 for six cycles).

Another trial whose results were presented was the phase II CORE trial, which enrolled 265 patients with newly diagnosed glioblastoma and unmethylated MGMT. Patients were randomized into three groups: a control arm of standard chemotherapy of TMZ plus radiotherapy, and then maintenance TMZ (n = 89); a standard cilenglitide dosing arm, with patients receiving 2,000 mg twice a week in addition to chemoradiotherapy (n = 88); and an intensive dosing arm, with the dose of cilenglitide upped to 2,000 mg five times a week in addition to chemoradiotherapy (n = 88).

Contrary to the CENTRIC study results, the CORE study findings suggested there was a benefit of adding cilenglitide to standard therapy. Median overall survival was 13.4 months in the control arm, but 16.3 months in the standard cilenglitide dosing arm (hazard ratio, 0.69 vs. control). Median overall survival in the intensive treatment arm was 14.5 months (HR, 0.86 vs. control).

Sara Freeman/IMNG Medical Media
Dr. Michael Brada

Investigator-assessed progression-free survival also suggested a benefit of adding cilenglitide.

"These findings are inconsistent with the larger, phase III CENTRIC clinical trial," said Dr. L. Burt Nabors of the University of Alabama at Birmingham, who presented the CORE findings. "This is a limited study. It was more exploratory in nature, with a sample size that was obviously smaller." He suggested that further investigations are required to look at possible biomarkers.

Commenting on the CENTRIC study, Dr. Michael Brada of University College Hospital, London, observed: "It’s been a bumpy year for randomized trials." Recent trials in glioblastoma have generally been disappointing, and the CENTRIC study results now add to the negative results.

Additional phase I/II trials are investigating the potential of cilenglitide in combination with radiotherapy and chemotherapy in patients with locally advanced non–small cell lung cancer (NCT01118676), and in combination with chemotherapy in patients with recurrent/metastatic squamous cell carcinoma of the head and neck (NCT00705016).

The CENTRIC and CORE studies were sponsored by Merck. Dr. Stupp has received honoraria for consultancy work from Merck Serono, MSD-Merck, and Roche/Genentech. Dr. Nabors had no conflicts of interest to disclose. Dr. Brada has participated on advisory boards for Roche and Merck.

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AT THE EUROPEAN CANCER CONGRESS 2013

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Major finding: Overall survival was 26.3 months in both study arms, and more events occurred in the cilenglitide arm than in the control arm (144 vs. 138; hazard ratio, 1.021; P = .86).

Data source: Two multicenter, randomized trials of newly diagnosed glioblastoma patients: CENTRIC, a double-blind phase III study of 545 glioblastoma patients treated with standard chemoradiotherapy with or without additional cilenglitide; and CORE, an open-label phase II study of standard or intensively dosed cilenglitide added to standard chemoradiotherapy.

Disclosures: The CENTRIC and CORE studies were sponsored by Merck. Dr. Stupp has received honoraria for consultancy work from Merck Serono, MSD-Merck, and Roche/Genentech. Dr. Nabors had no conflicts of interest to disclose. Dr. Brada has participated on advisory boards for Roche and Merck.

In phase III trial, bevacizumab prolongs progression-free survival for ovarian cancer

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AMSTERDAM – Despite finding no overall survival benefit by adding bevacizumab to standard chemotherapy for newly diagnosed or platinum-resistant advanced ovarian cancer, the results of two phase III clinical trials remain "practice changing," according to a commentator Dr. Rebecca Kristeleit at the the multidisciplinary European cancer congresses.

Final overall survival results from the ICON7 trial showed that, in more than 1,500 women with newly diagnosed advanced ovarian cancer, there was a nonstatistical (P =.85) difference in overall survival of about 0.9 months using the restricted mean when all patients were considered.

Sara Freeman/IMNG Medical Media
Dr. Rebecca Kristeleit

In the AURELIA trial, conducted in 361 women with platinum-resistant disease, the hazard ratio for overall survival was 0.85, in favor of the addition of bevacizumab to chemotherapy, although this was not statistically significant (P = .174). The median overall survival was 16.6 months vs. 13.3 months in the control arm.

"The message I take from ICON7 is that there is a significant overall survival benefit in the high-risk group," said Dr. Kristeleit. "It’s an important clinical improvement, and it’s most important in the poor-prognosis patients, the ones who are inoperable, and the ones who are stage IV."

Regarding AURELIA, Dr. Kristeleit, a senior lecturer and consultant medical oncologist at University College London, said, "The study has shown a significant progression-free survival benefit, and we need to remember that it has doubled this in this really hard to treat group of ovarian cancer patients where there is significant clinical need."

ICON7: Bevacizumab in front-line treatment

The ICON7 (International Collaboration on Ovarian Neoplasms) study investigated the safety and efficacy of adding bevacizumab (7.5 mg/kg every 3 weeks) to standard chemotherapy in women with newly diagnosed ovarian cancer who were recruited and treated at 253 centers. The mean age of patients in the trial was 57 years.

The primary efficacy findings from the study were reported 3 years ago at the annual Congress of the European Society for Medical Oncology and published in the New England Journal of Medicine (2011;365:2484-96). These findings showed a clear benefit of adding the targeted agent to carboplatin (AUC 5 or 6) and paclitaxel (175 mg/m2) given every 3 weeks for six cycles vs. chemotherapy alone, with median progression-free survival times of 19.0 vs. 17.3 months (HR, 0.81; P = .0041), respectively.

Sara Freeman/IMNG Medical Media
Dr. Amit Oza

Now, with a median follow-up of 49 months, "it’s reassuring to see the progression-free survival is essentially the same [19.9 vs. 17.5 months]," observed study investigator Dr. Amit Oza of the Princess Margaret Cancer Centre at the University of Toronto.

Dr. Oza noted that 502 (33%) women met prespecified criteria for having a "poor prognosis," including women with suboptimally debulked stage III disease, those with stage IV disease, and those who could not have surgery, potentially putting them at high risk of progression. In those women, bevacizumab improved progression-free survival by a median of 5.5 months (HR, 0.73, P =.001), or 4.1 months using the restricted mean as the data were found to be non-proportional.

Final overall survival in these high-risk women was improved by a median of 9.4 months by the additional use of bevacizumab (HR, 0.78, P = .03), or 4.8 months using the restricted mean, from 34.5 months with chemotherapy alone to 39.3 months by the addition of the targeted agent.

"The overall survival difference in the high-risk subgroup is clinically meaningful," Dr. Oza said.

AURELIA: Bevacizumab in platinum-resistant disease

AURELIA was an open-label, randomized trial involving women who had progressive ovarian cancer within 6 months of receiving platinum-based chemotherapy. Women were randomized to receive chemotherapy alone (n = 182) or to chemotherapy plus bevacizumab (n = 179). The choice of chemotherapy was at the investigators’ discretion from a choice of weekly paclitaxel (80 mg/m2 on days 1, 8, 15, and 22), topotecan (4 mg/m2 on days 1, 8, and 15), or pegylated liposomal doxorubicin (PLD, 40 mg/m2 on day 1). Bevacizumab was given at a dose of 15 mg/kg every 3 weeks.

The primary endpoint was progression-free survival, with secondary endpoints of overall survival, quality of life, and, of course, safety and tolerability. The primary endpoint findings were presented last year at the annual meeting American Society of Clinical Oncology (J. Clin. Oncol. 2012;30 Suppl:LBA5002) and showed that the addition of bevacizumab almost doubled progression-free survival from 3.4 months with chemotherapy alone to 6.7 months when bevacizumab was added (HR, 0.48, P less than .001).

"The study was not powered to detect a significant difference in overall survival," said Dr. Petronella O. Witteveen, who was one of the AURELIA study investigators. Dr. Witteveen of the University Medical Center Utrecht in the Netherlands commented that overall survival was a key secondary endpoint for the trial and that interpretation of these data were complicated by the high percentage (40%) of patients in the chemotherapy arm that were allowed to crossover to additional treatment with bevacizumab.

 

 

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Dr. Petronella Witteveen

Although no difference between the treatment arms could be seen in the final overall survival analysis, exploratory findings hinted that patients who received bevacizumab in combination with weekly paclitaxel might have had a survival advantage. The median overall survival in the cohort of patients who received bevacizumab in addition to weekly paclitaxel (n = 60) was 22.4 months vs. 13.2 months in the patients who received the chemotherapy alone (n = 55; HR, 0.65). Overall survival in the topotecan and PLD cohorts did not show any benefit of the addition of bevacizumab, with median overall survival times of just over 13-14 months whether or not bevacizumab was added to chemotherapy.

Updated safety findings showed no undue concerns or new side effects, with a higher percentage of patients experiencing hypertension if treated with bevacizumab rather than chemotherapy alone (7.8% vs. 1.1%). "There were strict instructions to try to reduce the number of gastrointestinal perforations," Dr. Witteveen noted. This resulted in a low rate (1.1% vs. 0%) of this adverse event, she observed

"Practice-changing trials"

"I think these are practice-changing trials," Dr. Kristeleit commented, stating that bevacizumab is clearly an active drug in advanced bulky ovarian cancer.

Based on the ICON7 findings, "first-line bevacizumab and 3-weekly chemotherapy should be considered a standard of care in high risk ovarian cancer," she said.

Meanwhile AURELIA shows, "Bevacizumab with weekly paclitaxel should be considered a new paradigm in platinum-resistant ovarian cancer."

Bevacizumab (Avastin) was recently approved for use in combination with chemotherapy in the first- and second-line treatment of advanced ovarian cancer in Europe. In the second-line setting, it is indicated in platinum-sensitive disease and not platinum-resistant disease as tested in the AURELIA trial. Bevacizumab is not currently licensed for ovarian cancer treatment in the United States.

Roche sponsored the AURELIA study. Dr. Witteveen had no conflicts of interest; some of her coinvestigators disclosed ties with Roche, GlaxoSmithKline, and Novartis. ICON-7 was funded by Roche and the National Institute for Health Research through the National Cancer Research Network in the United Kingdom. Dr. Oza disclosed ties with Roche. Dr. Kristeleit disclosed ties with Roche, Clovis, Janssen, Lytix, and Novartis.

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AMSTERDAM – Despite finding no overall survival benefit by adding bevacizumab to standard chemotherapy for newly diagnosed or platinum-resistant advanced ovarian cancer, the results of two phase III clinical trials remain "practice changing," according to a commentator Dr. Rebecca Kristeleit at the the multidisciplinary European cancer congresses.

Final overall survival results from the ICON7 trial showed that, in more than 1,500 women with newly diagnosed advanced ovarian cancer, there was a nonstatistical (P =.85) difference in overall survival of about 0.9 months using the restricted mean when all patients were considered.

Sara Freeman/IMNG Medical Media
Dr. Rebecca Kristeleit

In the AURELIA trial, conducted in 361 women with platinum-resistant disease, the hazard ratio for overall survival was 0.85, in favor of the addition of bevacizumab to chemotherapy, although this was not statistically significant (P = .174). The median overall survival was 16.6 months vs. 13.3 months in the control arm.

"The message I take from ICON7 is that there is a significant overall survival benefit in the high-risk group," said Dr. Kristeleit. "It’s an important clinical improvement, and it’s most important in the poor-prognosis patients, the ones who are inoperable, and the ones who are stage IV."

Regarding AURELIA, Dr. Kristeleit, a senior lecturer and consultant medical oncologist at University College London, said, "The study has shown a significant progression-free survival benefit, and we need to remember that it has doubled this in this really hard to treat group of ovarian cancer patients where there is significant clinical need."

ICON7: Bevacizumab in front-line treatment

The ICON7 (International Collaboration on Ovarian Neoplasms) study investigated the safety and efficacy of adding bevacizumab (7.5 mg/kg every 3 weeks) to standard chemotherapy in women with newly diagnosed ovarian cancer who were recruited and treated at 253 centers. The mean age of patients in the trial was 57 years.

The primary efficacy findings from the study were reported 3 years ago at the annual Congress of the European Society for Medical Oncology and published in the New England Journal of Medicine (2011;365:2484-96). These findings showed a clear benefit of adding the targeted agent to carboplatin (AUC 5 or 6) and paclitaxel (175 mg/m2) given every 3 weeks for six cycles vs. chemotherapy alone, with median progression-free survival times of 19.0 vs. 17.3 months (HR, 0.81; P = .0041), respectively.

Sara Freeman/IMNG Medical Media
Dr. Amit Oza

Now, with a median follow-up of 49 months, "it’s reassuring to see the progression-free survival is essentially the same [19.9 vs. 17.5 months]," observed study investigator Dr. Amit Oza of the Princess Margaret Cancer Centre at the University of Toronto.

Dr. Oza noted that 502 (33%) women met prespecified criteria for having a "poor prognosis," including women with suboptimally debulked stage III disease, those with stage IV disease, and those who could not have surgery, potentially putting them at high risk of progression. In those women, bevacizumab improved progression-free survival by a median of 5.5 months (HR, 0.73, P =.001), or 4.1 months using the restricted mean as the data were found to be non-proportional.

Final overall survival in these high-risk women was improved by a median of 9.4 months by the additional use of bevacizumab (HR, 0.78, P = .03), or 4.8 months using the restricted mean, from 34.5 months with chemotherapy alone to 39.3 months by the addition of the targeted agent.

"The overall survival difference in the high-risk subgroup is clinically meaningful," Dr. Oza said.

AURELIA: Bevacizumab in platinum-resistant disease

AURELIA was an open-label, randomized trial involving women who had progressive ovarian cancer within 6 months of receiving platinum-based chemotherapy. Women were randomized to receive chemotherapy alone (n = 182) or to chemotherapy plus bevacizumab (n = 179). The choice of chemotherapy was at the investigators’ discretion from a choice of weekly paclitaxel (80 mg/m2 on days 1, 8, 15, and 22), topotecan (4 mg/m2 on days 1, 8, and 15), or pegylated liposomal doxorubicin (PLD, 40 mg/m2 on day 1). Bevacizumab was given at a dose of 15 mg/kg every 3 weeks.

The primary endpoint was progression-free survival, with secondary endpoints of overall survival, quality of life, and, of course, safety and tolerability. The primary endpoint findings were presented last year at the annual meeting American Society of Clinical Oncology (J. Clin. Oncol. 2012;30 Suppl:LBA5002) and showed that the addition of bevacizumab almost doubled progression-free survival from 3.4 months with chemotherapy alone to 6.7 months when bevacizumab was added (HR, 0.48, P less than .001).

"The study was not powered to detect a significant difference in overall survival," said Dr. Petronella O. Witteveen, who was one of the AURELIA study investigators. Dr. Witteveen of the University Medical Center Utrecht in the Netherlands commented that overall survival was a key secondary endpoint for the trial and that interpretation of these data were complicated by the high percentage (40%) of patients in the chemotherapy arm that were allowed to crossover to additional treatment with bevacizumab.

 

 

Sara Freeman/IMNG Medical Media
Dr. Petronella Witteveen

Although no difference between the treatment arms could be seen in the final overall survival analysis, exploratory findings hinted that patients who received bevacizumab in combination with weekly paclitaxel might have had a survival advantage. The median overall survival in the cohort of patients who received bevacizumab in addition to weekly paclitaxel (n = 60) was 22.4 months vs. 13.2 months in the patients who received the chemotherapy alone (n = 55; HR, 0.65). Overall survival in the topotecan and PLD cohorts did not show any benefit of the addition of bevacizumab, with median overall survival times of just over 13-14 months whether or not bevacizumab was added to chemotherapy.

Updated safety findings showed no undue concerns or new side effects, with a higher percentage of patients experiencing hypertension if treated with bevacizumab rather than chemotherapy alone (7.8% vs. 1.1%). "There were strict instructions to try to reduce the number of gastrointestinal perforations," Dr. Witteveen noted. This resulted in a low rate (1.1% vs. 0%) of this adverse event, she observed

"Practice-changing trials"

"I think these are practice-changing trials," Dr. Kristeleit commented, stating that bevacizumab is clearly an active drug in advanced bulky ovarian cancer.

Based on the ICON7 findings, "first-line bevacizumab and 3-weekly chemotherapy should be considered a standard of care in high risk ovarian cancer," she said.

Meanwhile AURELIA shows, "Bevacizumab with weekly paclitaxel should be considered a new paradigm in platinum-resistant ovarian cancer."

Bevacizumab (Avastin) was recently approved for use in combination with chemotherapy in the first- and second-line treatment of advanced ovarian cancer in Europe. In the second-line setting, it is indicated in platinum-sensitive disease and not platinum-resistant disease as tested in the AURELIA trial. Bevacizumab is not currently licensed for ovarian cancer treatment in the United States.

Roche sponsored the AURELIA study. Dr. Witteveen had no conflicts of interest; some of her coinvestigators disclosed ties with Roche, GlaxoSmithKline, and Novartis. ICON-7 was funded by Roche and the National Institute for Health Research through the National Cancer Research Network in the United Kingdom. Dr. Oza disclosed ties with Roche. Dr. Kristeleit disclosed ties with Roche, Clovis, Janssen, Lytix, and Novartis.

AMSTERDAM – Despite finding no overall survival benefit by adding bevacizumab to standard chemotherapy for newly diagnosed or platinum-resistant advanced ovarian cancer, the results of two phase III clinical trials remain "practice changing," according to a commentator Dr. Rebecca Kristeleit at the the multidisciplinary European cancer congresses.

Final overall survival results from the ICON7 trial showed that, in more than 1,500 women with newly diagnosed advanced ovarian cancer, there was a nonstatistical (P =.85) difference in overall survival of about 0.9 months using the restricted mean when all patients were considered.

Sara Freeman/IMNG Medical Media
Dr. Rebecca Kristeleit

In the AURELIA trial, conducted in 361 women with platinum-resistant disease, the hazard ratio for overall survival was 0.85, in favor of the addition of bevacizumab to chemotherapy, although this was not statistically significant (P = .174). The median overall survival was 16.6 months vs. 13.3 months in the control arm.

"The message I take from ICON7 is that there is a significant overall survival benefit in the high-risk group," said Dr. Kristeleit. "It’s an important clinical improvement, and it’s most important in the poor-prognosis patients, the ones who are inoperable, and the ones who are stage IV."

Regarding AURELIA, Dr. Kristeleit, a senior lecturer and consultant medical oncologist at University College London, said, "The study has shown a significant progression-free survival benefit, and we need to remember that it has doubled this in this really hard to treat group of ovarian cancer patients where there is significant clinical need."

ICON7: Bevacizumab in front-line treatment

The ICON7 (International Collaboration on Ovarian Neoplasms) study investigated the safety and efficacy of adding bevacizumab (7.5 mg/kg every 3 weeks) to standard chemotherapy in women with newly diagnosed ovarian cancer who were recruited and treated at 253 centers. The mean age of patients in the trial was 57 years.

The primary efficacy findings from the study were reported 3 years ago at the annual Congress of the European Society for Medical Oncology and published in the New England Journal of Medicine (2011;365:2484-96). These findings showed a clear benefit of adding the targeted agent to carboplatin (AUC 5 or 6) and paclitaxel (175 mg/m2) given every 3 weeks for six cycles vs. chemotherapy alone, with median progression-free survival times of 19.0 vs. 17.3 months (HR, 0.81; P = .0041), respectively.

Sara Freeman/IMNG Medical Media
Dr. Amit Oza

Now, with a median follow-up of 49 months, "it’s reassuring to see the progression-free survival is essentially the same [19.9 vs. 17.5 months]," observed study investigator Dr. Amit Oza of the Princess Margaret Cancer Centre at the University of Toronto.

Dr. Oza noted that 502 (33%) women met prespecified criteria for having a "poor prognosis," including women with suboptimally debulked stage III disease, those with stage IV disease, and those who could not have surgery, potentially putting them at high risk of progression. In those women, bevacizumab improved progression-free survival by a median of 5.5 months (HR, 0.73, P =.001), or 4.1 months using the restricted mean as the data were found to be non-proportional.

Final overall survival in these high-risk women was improved by a median of 9.4 months by the additional use of bevacizumab (HR, 0.78, P = .03), or 4.8 months using the restricted mean, from 34.5 months with chemotherapy alone to 39.3 months by the addition of the targeted agent.

"The overall survival difference in the high-risk subgroup is clinically meaningful," Dr. Oza said.

AURELIA: Bevacizumab in platinum-resistant disease

AURELIA was an open-label, randomized trial involving women who had progressive ovarian cancer within 6 months of receiving platinum-based chemotherapy. Women were randomized to receive chemotherapy alone (n = 182) or to chemotherapy plus bevacizumab (n = 179). The choice of chemotherapy was at the investigators’ discretion from a choice of weekly paclitaxel (80 mg/m2 on days 1, 8, 15, and 22), topotecan (4 mg/m2 on days 1, 8, and 15), or pegylated liposomal doxorubicin (PLD, 40 mg/m2 on day 1). Bevacizumab was given at a dose of 15 mg/kg every 3 weeks.

The primary endpoint was progression-free survival, with secondary endpoints of overall survival, quality of life, and, of course, safety and tolerability. The primary endpoint findings were presented last year at the annual meeting American Society of Clinical Oncology (J. Clin. Oncol. 2012;30 Suppl:LBA5002) and showed that the addition of bevacizumab almost doubled progression-free survival from 3.4 months with chemotherapy alone to 6.7 months when bevacizumab was added (HR, 0.48, P less than .001).

"The study was not powered to detect a significant difference in overall survival," said Dr. Petronella O. Witteveen, who was one of the AURELIA study investigators. Dr. Witteveen of the University Medical Center Utrecht in the Netherlands commented that overall survival was a key secondary endpoint for the trial and that interpretation of these data were complicated by the high percentage (40%) of patients in the chemotherapy arm that were allowed to crossover to additional treatment with bevacizumab.

 

 

Sara Freeman/IMNG Medical Media
Dr. Petronella Witteveen

Although no difference between the treatment arms could be seen in the final overall survival analysis, exploratory findings hinted that patients who received bevacizumab in combination with weekly paclitaxel might have had a survival advantage. The median overall survival in the cohort of patients who received bevacizumab in addition to weekly paclitaxel (n = 60) was 22.4 months vs. 13.2 months in the patients who received the chemotherapy alone (n = 55; HR, 0.65). Overall survival in the topotecan and PLD cohorts did not show any benefit of the addition of bevacizumab, with median overall survival times of just over 13-14 months whether or not bevacizumab was added to chemotherapy.

Updated safety findings showed no undue concerns or new side effects, with a higher percentage of patients experiencing hypertension if treated with bevacizumab rather than chemotherapy alone (7.8% vs. 1.1%). "There were strict instructions to try to reduce the number of gastrointestinal perforations," Dr. Witteveen noted. This resulted in a low rate (1.1% vs. 0%) of this adverse event, she observed

"Practice-changing trials"

"I think these are practice-changing trials," Dr. Kristeleit commented, stating that bevacizumab is clearly an active drug in advanced bulky ovarian cancer.

Based on the ICON7 findings, "first-line bevacizumab and 3-weekly chemotherapy should be considered a standard of care in high risk ovarian cancer," she said.

Meanwhile AURELIA shows, "Bevacizumab with weekly paclitaxel should be considered a new paradigm in platinum-resistant ovarian cancer."

Bevacizumab (Avastin) was recently approved for use in combination with chemotherapy in the first- and second-line treatment of advanced ovarian cancer in Europe. In the second-line setting, it is indicated in platinum-sensitive disease and not platinum-resistant disease as tested in the AURELIA trial. Bevacizumab is not currently licensed for ovarian cancer treatment in the United States.

Roche sponsored the AURELIA study. Dr. Witteveen had no conflicts of interest; some of her coinvestigators disclosed ties with Roche, GlaxoSmithKline, and Novartis. ICON-7 was funded by Roche and the National Institute for Health Research through the National Cancer Research Network in the United Kingdom. Dr. Oza disclosed ties with Roche. Dr. Kristeleit disclosed ties with Roche, Clovis, Janssen, Lytix, and Novartis.

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Major findings: The hazard ratios for overall survival were 0.78 (P = .007) in "high-risk" newly diagnosed patients and 0.85 (P = .174) in platinum-resistant patients.

Data source: Two multicenter, randomized, phase III, controlled trials of bevacizumab added to chemotherapy for the first-line (ICON7; n = 1,528) or platinum-resistant (AURELIA; n = 361) treatment of advanced ovarian cancer.

Disclosures: Roche sponsored the AURELIA study. Dr. Witteveen had no conflicts of interest; some of her coinvestigators disclosed ties with Roche, GSK, and Novartis. ICON7 was funded by Roche and the National Institute for Health Research through the National Cancer Research Network in the United Kingdom. Dr. Oza disclosed ties with Roche. Dr. Kristeleit disclosed ties with Roche, Clovis, Janssen, Lytix, and Novartis.

ACCORD: Age Linked to Higher Cardiovascular Death Rates

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ACCORD: Age Linked to Higher Cardiovascular Death Rates

Patients aged 65 years and older with type 2 diabetes who received intensive glucose-lowering therapy were at no greater risk of cardiovascular death than those who were given standard glucose-lowering therapy in the large ACCORD trial.

However, study participants who were under age 65 had a significantly higher risk of death from cardiovascular causes if they received intensive versus standard glucose-lowering treatment, with a hazard ratio of 1.71, compared with 0.97 for older patients.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD [cardiovascular disease] benefit," said Michael E. Miller, Ph.D., of Wake Forest University, Winston-Salem, N.C., and his associates (Diabetes Care 2013 Oct. 29, published online before print [doi: 10.2337/dc13-1545]).

Dr. Miller and his team performed a post hoc analysis of the ACCORD (Action to Control Cardiovascular Risk in Diabetes) study to determine if there was any difference in glucose control, tolerability, cardiovascular disease, or all-cause mortality according to patients’ age at randomization.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD benefit..."

ACCORD involved 10,251 patients (mean age, 62 years) with type 2 diabetes who had a median duration of diabetes of 10 years and a median hemoglobin A1c level of 8.1% at enrollment. Patients were randomized to receive either intensive or standard glucose-lowering therapy, with target glycated HbA1c levels of less than 6.0% or between 7.0% and 7.9%, respectively.

The main findings of the glucose-lowering component of the trial were published 5 years ago and showed that, rather than having a beneficial effect on cardiovascular or all-cause mortality as hypothesized, intensively lowering HbA1c levels increased cardiovascular mortality by 35% and all-cause mortality by 22% (N. Engl. J. Med. 2008;358;2545-59). This led to the intensive-therapy arm being discontinued after a mean of 3.7 years’ follow-up.

Several analyses have since tried to determine why the excess mortality might have occurred, but there still appears to be no valid answer. For the current analysis, patients’ age at randomization was used to further examine the data. In total, there were 6,776 patients under age 65 and 3,475 who were at least 65 years old at randomization.

"Our analysis on the impact of baseline age on the effect of more intensive blood sugar lowering in the ACCORD trial indicates that, relative to standard glycemic treatment, intensive treatment resulted in similar metabolic and primary/secondary endpoint effects in older and younger participants," the researchers observed. Thus, patient age does not appear to influence whether HbA1c targets can successfully be reached or not.

Hypoglycemia requiring medical assistance occurred in three times as many patients given intensive treatment as those given standard treatment, regardless of age. Rates were 15.3% versus 5.1% for older individuals, and 8.7% versus 3.0, respectively, for younger individuals.

Although the increased risk of hypoglycemia was similar for the two age groups, the absolute incidence of severe hypoglycemia was higher in older individuals, at 4.4% with intensive treatment and 1.4% with standard treatment, versus 2.5% and 0.8% for the younger patients.

The hypoglycemia findings "amplify prior findings in older patients," the researchers commented, highlighting "the need to individualize therapy in older adults with type 2 diabetes, as suggested by others."

Altogether, these new data from ACCORD can help to develop future trials in older individuals, the investigators concluded. "Exploratory analyses of the type we have performed can help to inform the design, implementation, and monitoring of future clinical trials that include older patients with type 2 diabetes and other chronic diseases."

ACCORD was supported by grants from the National Institutes of Health. Dr. Miller and several coauthors reported no conflicts of interest. Several authors disclosed ties with AstraZeneca, Bayer, and other companies.

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Patients aged 65 years and older with type 2 diabetes who received intensive glucose-lowering therapy were at no greater risk of cardiovascular death than those who were given standard glucose-lowering therapy in the large ACCORD trial.

However, study participants who were under age 65 had a significantly higher risk of death from cardiovascular causes if they received intensive versus standard glucose-lowering treatment, with a hazard ratio of 1.71, compared with 0.97 for older patients.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD [cardiovascular disease] benefit," said Michael E. Miller, Ph.D., of Wake Forest University, Winston-Salem, N.C., and his associates (Diabetes Care 2013 Oct. 29, published online before print [doi: 10.2337/dc13-1545]).

Dr. Miller and his team performed a post hoc analysis of the ACCORD (Action to Control Cardiovascular Risk in Diabetes) study to determine if there was any difference in glucose control, tolerability, cardiovascular disease, or all-cause mortality according to patients’ age at randomization.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD benefit..."

ACCORD involved 10,251 patients (mean age, 62 years) with type 2 diabetes who had a median duration of diabetes of 10 years and a median hemoglobin A1c level of 8.1% at enrollment. Patients were randomized to receive either intensive or standard glucose-lowering therapy, with target glycated HbA1c levels of less than 6.0% or between 7.0% and 7.9%, respectively.

The main findings of the glucose-lowering component of the trial were published 5 years ago and showed that, rather than having a beneficial effect on cardiovascular or all-cause mortality as hypothesized, intensively lowering HbA1c levels increased cardiovascular mortality by 35% and all-cause mortality by 22% (N. Engl. J. Med. 2008;358;2545-59). This led to the intensive-therapy arm being discontinued after a mean of 3.7 years’ follow-up.

Several analyses have since tried to determine why the excess mortality might have occurred, but there still appears to be no valid answer. For the current analysis, patients’ age at randomization was used to further examine the data. In total, there were 6,776 patients under age 65 and 3,475 who were at least 65 years old at randomization.

"Our analysis on the impact of baseline age on the effect of more intensive blood sugar lowering in the ACCORD trial indicates that, relative to standard glycemic treatment, intensive treatment resulted in similar metabolic and primary/secondary endpoint effects in older and younger participants," the researchers observed. Thus, patient age does not appear to influence whether HbA1c targets can successfully be reached or not.

Hypoglycemia requiring medical assistance occurred in three times as many patients given intensive treatment as those given standard treatment, regardless of age. Rates were 15.3% versus 5.1% for older individuals, and 8.7% versus 3.0, respectively, for younger individuals.

Although the increased risk of hypoglycemia was similar for the two age groups, the absolute incidence of severe hypoglycemia was higher in older individuals, at 4.4% with intensive treatment and 1.4% with standard treatment, versus 2.5% and 0.8% for the younger patients.

The hypoglycemia findings "amplify prior findings in older patients," the researchers commented, highlighting "the need to individualize therapy in older adults with type 2 diabetes, as suggested by others."

Altogether, these new data from ACCORD can help to develop future trials in older individuals, the investigators concluded. "Exploratory analyses of the type we have performed can help to inform the design, implementation, and monitoring of future clinical trials that include older patients with type 2 diabetes and other chronic diseases."

ACCORD was supported by grants from the National Institutes of Health. Dr. Miller and several coauthors reported no conflicts of interest. Several authors disclosed ties with AstraZeneca, Bayer, and other companies.

Patients aged 65 years and older with type 2 diabetes who received intensive glucose-lowering therapy were at no greater risk of cardiovascular death than those who were given standard glucose-lowering therapy in the large ACCORD trial.

However, study participants who were under age 65 had a significantly higher risk of death from cardiovascular causes if they received intensive versus standard glucose-lowering treatment, with a hazard ratio of 1.71, compared with 0.97 for older patients.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD [cardiovascular disease] benefit," said Michael E. Miller, Ph.D., of Wake Forest University, Winston-Salem, N.C., and his associates (Diabetes Care 2013 Oct. 29, published online before print [doi: 10.2337/dc13-1545]).

Dr. Miller and his team performed a post hoc analysis of the ACCORD (Action to Control Cardiovascular Risk in Diabetes) study to determine if there was any difference in glucose control, tolerability, cardiovascular disease, or all-cause mortality according to patients’ age at randomization.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD benefit..."

ACCORD involved 10,251 patients (mean age, 62 years) with type 2 diabetes who had a median duration of diabetes of 10 years and a median hemoglobin A1c level of 8.1% at enrollment. Patients were randomized to receive either intensive or standard glucose-lowering therapy, with target glycated HbA1c levels of less than 6.0% or between 7.0% and 7.9%, respectively.

The main findings of the glucose-lowering component of the trial were published 5 years ago and showed that, rather than having a beneficial effect on cardiovascular or all-cause mortality as hypothesized, intensively lowering HbA1c levels increased cardiovascular mortality by 35% and all-cause mortality by 22% (N. Engl. J. Med. 2008;358;2545-59). This led to the intensive-therapy arm being discontinued after a mean of 3.7 years’ follow-up.

Several analyses have since tried to determine why the excess mortality might have occurred, but there still appears to be no valid answer. For the current analysis, patients’ age at randomization was used to further examine the data. In total, there were 6,776 patients under age 65 and 3,475 who were at least 65 years old at randomization.

"Our analysis on the impact of baseline age on the effect of more intensive blood sugar lowering in the ACCORD trial indicates that, relative to standard glycemic treatment, intensive treatment resulted in similar metabolic and primary/secondary endpoint effects in older and younger participants," the researchers observed. Thus, patient age does not appear to influence whether HbA1c targets can successfully be reached or not.

Hypoglycemia requiring medical assistance occurred in three times as many patients given intensive treatment as those given standard treatment, regardless of age. Rates were 15.3% versus 5.1% for older individuals, and 8.7% versus 3.0, respectively, for younger individuals.

Although the increased risk of hypoglycemia was similar for the two age groups, the absolute incidence of severe hypoglycemia was higher in older individuals, at 4.4% with intensive treatment and 1.4% with standard treatment, versus 2.5% and 0.8% for the younger patients.

The hypoglycemia findings "amplify prior findings in older patients," the researchers commented, highlighting "the need to individualize therapy in older adults with type 2 diabetes, as suggested by others."

Altogether, these new data from ACCORD can help to develop future trials in older individuals, the investigators concluded. "Exploratory analyses of the type we have performed can help to inform the design, implementation, and monitoring of future clinical trials that include older patients with type 2 diabetes and other chronic diseases."

ACCORD was supported by grants from the National Institutes of Health. Dr. Miller and several coauthors reported no conflicts of interest. Several authors disclosed ties with AstraZeneca, Bayer, and other companies.

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ACCORD: Younger, not older, age linked to higher cardiovascular death rates

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ACCORD: Younger, not older, age linked to higher cardiovascular death rates

Patients aged 65 years and older with type 2 diabetes who received intensive glucose-lowering therapy were at no greater risk of cardiovascular death than those who were given standard glucose-lowering therapy in the large ACCORD trial.

However, study participants who were under age 65 had a significantly higher risk of death from cardiovascular causes if they received intensive versus standard glucose-lowering treatment, with a hazard ratio of 1.71, compared with 0.97 for older patients.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD [cardiovascular disease] benefit," said Michael E. Miller, Ph.D., of Wake Forest University, Winston-Salem, N.C., and his associates (Diabetes Care 2013 Oct. 29, published online before print [doi: 10.2337/dc13-1545]).

Dr. Miller and his team performed a post hoc analysis of the ACCORD (Action to Control Cardiovascular Risk in Diabetes) study to determine if there was any difference in glucose control, tolerability, cardiovascular disease, or all-cause mortality according to patients’ age at randomization.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD benefit..."

ACCORD involved 10,251 patients (mean age, 62 years) with type 2 diabetes who had a median duration of diabetes of 10 years and a median hemoglobin A1c level of 8.1% at enrollment. Patients were randomized to receive either intensive or standard glucose-lowering therapy, with target glycated HbA1c levels of less than 6.0% or between 7.0% and 7.9%, respectively.

The main findings of the glucose-lowering component of the trial were published 5 years ago and showed that, rather than having a beneficial effect on cardiovascular or all-cause mortality as hypothesized, intensively lowering HbA1c levels increased cardiovascular mortality by 35% and all-cause mortality by 22% (N. Engl. J. Med. 2008;358;2545-59). This led to the intensive-therapy arm being discontinued after a mean of 3.7 years’ follow-up.

Several analyses have since tried to determine why the excess mortality might have occurred, but there still appears to be no valid answer. For the current analysis, patients’ age at randomization was used to further examine the data. In total, there were 6,776 patients under age 65 and 3,475 who were at least 65 years old at randomization.

"Our analysis on the impact of baseline age on the effect of more intensive blood sugar lowering in the ACCORD trial indicates that, relative to standard glycemic treatment, intensive treatment resulted in similar metabolic and primary/secondary endpoint effects in older and younger participants," the researchers observed. Thus, patient age does not appear to influence whether HbA1c targets can successfully be reached or not.

Hypoglycemia requiring medical assistance occurred in three times as many patients given intensive treatment as those given standard treatment, regardless of age. Rates were 15.3% versus 5.1% for older individuals, and 8.7% versus 3.0, respectively, for younger individuals.

Although the increased risk of hypoglycemia was similar for the two age groups, the absolute incidence of severe hypoglycemia was higher in older individuals, at 4.4% with intensive treatment and 1.4% with standard treatment, versus 2.5% and 0.8% for the younger patients.

The hypoglycemia findings "amplify prior findings in older patients," the researchers commented, highlighting "the need to individualize therapy in older adults with type 2 diabetes, as suggested by others."

Altogether, these new data from ACCORD can help to develop future trials in older individuals, the investigators concluded. "Exploratory analyses of the type we have performed can help to inform the design, implementation, and monitoring of future clinical trials that include older patients with type 2 diabetes and other chronic diseases."

ACCORD was supported by grants from the National Institutes of Health. Dr. Miller and several coauthors reported no conflicts of interest. Several authors disclosed ties with AstraZeneca, Bayer, and other companies.

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Patients aged 65 years and older with type 2 diabetes who received intensive glucose-lowering therapy were at no greater risk of cardiovascular death than those who were given standard glucose-lowering therapy in the large ACCORD trial.

However, study participants who were under age 65 had a significantly higher risk of death from cardiovascular causes if they received intensive versus standard glucose-lowering treatment, with a hazard ratio of 1.71, compared with 0.97 for older patients.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD [cardiovascular disease] benefit," said Michael E. Miller, Ph.D., of Wake Forest University, Winston-Salem, N.C., and his associates (Diabetes Care 2013 Oct. 29, published online before print [doi: 10.2337/dc13-1545]).

Dr. Miller and his team performed a post hoc analysis of the ACCORD (Action to Control Cardiovascular Risk in Diabetes) study to determine if there was any difference in glucose control, tolerability, cardiovascular disease, or all-cause mortality according to patients’ age at randomization.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD benefit..."

ACCORD involved 10,251 patients (mean age, 62 years) with type 2 diabetes who had a median duration of diabetes of 10 years and a median hemoglobin A1c level of 8.1% at enrollment. Patients were randomized to receive either intensive or standard glucose-lowering therapy, with target glycated HbA1c levels of less than 6.0% or between 7.0% and 7.9%, respectively.

The main findings of the glucose-lowering component of the trial were published 5 years ago and showed that, rather than having a beneficial effect on cardiovascular or all-cause mortality as hypothesized, intensively lowering HbA1c levels increased cardiovascular mortality by 35% and all-cause mortality by 22% (N. Engl. J. Med. 2008;358;2545-59). This led to the intensive-therapy arm being discontinued after a mean of 3.7 years’ follow-up.

Several analyses have since tried to determine why the excess mortality might have occurred, but there still appears to be no valid answer. For the current analysis, patients’ age at randomization was used to further examine the data. In total, there were 6,776 patients under age 65 and 3,475 who were at least 65 years old at randomization.

"Our analysis on the impact of baseline age on the effect of more intensive blood sugar lowering in the ACCORD trial indicates that, relative to standard glycemic treatment, intensive treatment resulted in similar metabolic and primary/secondary endpoint effects in older and younger participants," the researchers observed. Thus, patient age does not appear to influence whether HbA1c targets can successfully be reached or not.

Hypoglycemia requiring medical assistance occurred in three times as many patients given intensive treatment as those given standard treatment, regardless of age. Rates were 15.3% versus 5.1% for older individuals, and 8.7% versus 3.0, respectively, for younger individuals.

Although the increased risk of hypoglycemia was similar for the two age groups, the absolute incidence of severe hypoglycemia was higher in older individuals, at 4.4% with intensive treatment and 1.4% with standard treatment, versus 2.5% and 0.8% for the younger patients.

The hypoglycemia findings "amplify prior findings in older patients," the researchers commented, highlighting "the need to individualize therapy in older adults with type 2 diabetes, as suggested by others."

Altogether, these new data from ACCORD can help to develop future trials in older individuals, the investigators concluded. "Exploratory analyses of the type we have performed can help to inform the design, implementation, and monitoring of future clinical trials that include older patients with type 2 diabetes and other chronic diseases."

ACCORD was supported by grants from the National Institutes of Health. Dr. Miller and several coauthors reported no conflicts of interest. Several authors disclosed ties with AstraZeneca, Bayer, and other companies.

Patients aged 65 years and older with type 2 diabetes who received intensive glucose-lowering therapy were at no greater risk of cardiovascular death than those who were given standard glucose-lowering therapy in the large ACCORD trial.

However, study participants who were under age 65 had a significantly higher risk of death from cardiovascular causes if they received intensive versus standard glucose-lowering treatment, with a hazard ratio of 1.71, compared with 0.97 for older patients.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD [cardiovascular disease] benefit," said Michael E. Miller, Ph.D., of Wake Forest University, Winston-Salem, N.C., and his associates (Diabetes Care 2013 Oct. 29, published online before print [doi: 10.2337/dc13-1545]).

Dr. Miller and his team performed a post hoc analysis of the ACCORD (Action to Control Cardiovascular Risk in Diabetes) study to determine if there was any difference in glucose control, tolerability, cardiovascular disease, or all-cause mortality according to patients’ age at randomization.

"The ACCORD results do not indicate that significant excess mortality occurred among intensively versus standard treatment older adults, [but] there is little evidence to suggest that older adults received a CVD benefit..."

ACCORD involved 10,251 patients (mean age, 62 years) with type 2 diabetes who had a median duration of diabetes of 10 years and a median hemoglobin A1c level of 8.1% at enrollment. Patients were randomized to receive either intensive or standard glucose-lowering therapy, with target glycated HbA1c levels of less than 6.0% or between 7.0% and 7.9%, respectively.

The main findings of the glucose-lowering component of the trial were published 5 years ago and showed that, rather than having a beneficial effect on cardiovascular or all-cause mortality as hypothesized, intensively lowering HbA1c levels increased cardiovascular mortality by 35% and all-cause mortality by 22% (N. Engl. J. Med. 2008;358;2545-59). This led to the intensive-therapy arm being discontinued after a mean of 3.7 years’ follow-up.

Several analyses have since tried to determine why the excess mortality might have occurred, but there still appears to be no valid answer. For the current analysis, patients’ age at randomization was used to further examine the data. In total, there were 6,776 patients under age 65 and 3,475 who were at least 65 years old at randomization.

"Our analysis on the impact of baseline age on the effect of more intensive blood sugar lowering in the ACCORD trial indicates that, relative to standard glycemic treatment, intensive treatment resulted in similar metabolic and primary/secondary endpoint effects in older and younger participants," the researchers observed. Thus, patient age does not appear to influence whether HbA1c targets can successfully be reached or not.

Hypoglycemia requiring medical assistance occurred in three times as many patients given intensive treatment as those given standard treatment, regardless of age. Rates were 15.3% versus 5.1% for older individuals, and 8.7% versus 3.0, respectively, for younger individuals.

Although the increased risk of hypoglycemia was similar for the two age groups, the absolute incidence of severe hypoglycemia was higher in older individuals, at 4.4% with intensive treatment and 1.4% with standard treatment, versus 2.5% and 0.8% for the younger patients.

The hypoglycemia findings "amplify prior findings in older patients," the researchers commented, highlighting "the need to individualize therapy in older adults with type 2 diabetes, as suggested by others."

Altogether, these new data from ACCORD can help to develop future trials in older individuals, the investigators concluded. "Exploratory analyses of the type we have performed can help to inform the design, implementation, and monitoring of future clinical trials that include older patients with type 2 diabetes and other chronic diseases."

ACCORD was supported by grants from the National Institutes of Health. Dr. Miller and several coauthors reported no conflicts of interest. Several authors disclosed ties with AstraZeneca, Bayer, and other companies.

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ACCORD: Younger, not older, age linked to higher cardiovascular death rates
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ACCORD: Younger, not older, age linked to higher cardiovascular death rates
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type 2 diabetes, glucose-lowering therapy, cardiovascular death, ACCORD,
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type 2 diabetes, glucose-lowering therapy, cardiovascular death, ACCORD,
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Major finding: Patients under age 65 (HR, 1.17) but not those aged 65 years and older (HR, 0.97) were more likely to die from cardiovascular causes if given intensive versus standard glucose-lowering treatment (P = .03).

Data source: Post hoc analysis of 10,251 patients with type 2 diabetes who were randomized to the intensive or standard glucose-lowering therapy component of the multicenter ACCORD trial.

Disclosures: ACCORD was supported by grants from the National Institutes of Health. Dr. Miller and several coauthors reported no conflicts of interest. Several authors disclosed ties with AstraZeneca, Bayer, and other companies.