Heidi Splete

Systematically biased artificial intelligence (AI) models did not improve clinicians’ accuracy in diagnosing hospitalized patients, based on data from more than 450 clinicians.

“Artificial Intelligence (AI) could support clinicians in their diagnostic decisions of hospitalized patients but could also be biased and cause potential harm,” said Sarah Jabbour, MSE, a PhD candidate in computer science and engineering at the University of Michigan, Ann Arbor, in an interview.

“Regulatory guidance has suggested that the use of AI explanations could mitigate these harms, but the effectiveness of using AI explanations has not been established,” she said.

To examine whether AI explanations can be effective in mitigating the potential harms of systemic bias in AI models, Ms. Jabbour and colleagues conducted a randomized clinical vignette survey study. The survey was administered between April 2022 and January 2023 across 13 states, and the study population included hospitalist physicians, nurse practitioners, and physician assistants. The results were published in JAMA.

Participants were randomized to AI predictions with AI explanations (226 clinicians) or without AI explanations (231 clinicians).

The primary outcome was diagnostic accuracy for pneumonia, heart failure, and chronic obstructive pulmonary disease, defined as the number of correct diagnoses over the total number of assessments, the researchers wrote.

The clinicians viewed nine clinical vignettes of patients hospitalized with acute respiratory failure, including their presenting symptoms, physical examination, laboratory results, and chest radiographs. Clinicians viewed two vignettes with no AI model input to establish baseline diagnostic accuracy. They made three assessments in each vignette, one for each diagnosis. The order of the vignettes was two without AI predictions (to establish baseline diagnostic accuracy), six with AI predictions, and one with a clinical consultation by a hypothetical colleague. The vignettes included standard and systematically biased AI models.

The baseline diagnostic accuracy was 73% for the diagnoses of pneumonia, heart failure, and chronic obstructive pulmonary disease. Clinicians’ accuracy increased by 2.9% when they viewed a standard diagnostic AI model without explanations and by 4.4% when they viewed models with AI explanations.

However, clinicians’ accuracy decreased by 11.3% after viewing systematically biased AI model predictions without explanations compared with baseline, and biased AI model predictions with explanations decreased accuracy by 9.1%.

The decrease in accuracy with systematically biased AI predictions without explanations was mainly attributable to a decrease in the participants’ diagnostic specificity, the researchers noted, but the addition of explanations did little to improve it, the researchers said.

Potentially Useful but Still Imperfect

The findings were limited by several factors including the use of a web-based survey, which differs from surveys in a clinical setting, the researchers wrote. Other limitations included the younger than average study population, and the focus on the clinicians making treatment decisions, vs other clinicians who might have a better understanding of the AI explanations.

“In our study, explanations were presented in a way that were considered to be obvious, where the AI model was completely focused on areas of the chest X-rays unrelated to the clinical condition,” Ms. Jabbour told this news organization. “We hypothesized that if presented with such explanations, the participants in our study would notice that the model was behaving incorrectly and not rely on its predictions. This was surprisingly not the case, and the explanations when presented alongside biased AI predictions had seemingly no effect in mitigating clinicians’ overreliance on biased AI,” she said.

“AI is being developed at an extraordinary rate, and our study shows that it has the potential to improve clinical decision-making. At the same time, it could harm clinical decision-making when biased,” Ms. Jabbour said. “We must be thoughtful about how to carefully integrate AI into clinical workflows, with the goal of improving clinical care while not introducing systematic errors or harming patients,” she added.

Looking ahead, “There are several potential research areas that could be explored,” said Ms. Jabbour. “Researchers should focus on careful validation of AI models to identify biased model behavior prior to deployment. AI researchers should also continue including and communicating with clinicians during the development of AI tools to better understand clinicians’ needs and how they interact with AI,” she said. “This is not an exhaustive list of research directions, and it will take much discussion between experts across disciplines such as AI, human computer interaction, and medicine to ultimately deploy AI safely into clinical care.”

Don’t Overestimate AI

“With the increasing use of artificial intelligence and machine learning in other spheres, there has been an increase in interest in exploring how they can be utilized to improve clinical outcomes,” said Suman Pal, MD, assistant professor in the division of hospital medicine at the University of New Mexico, Albuquerque, in an interview. “However, concerns remain regarding the possible harms and ways to mitigate them,” said Dr. Pal, who was not involved in the current study.

In the current study, “It was interesting to note that explanations did not significantly mitigate the decrease in clinician accuracy from systematically biased AI model predictions,” Dr. Pal said.

“For the clinician, the findings of this study caution against overreliance on AI in clinical decision-making, especially because of the risk of exacerbating existing health disparities due to systemic inequities in existing literature,” Dr. Pal told this news organization.

“Additional research is needed to explore how clinicians can be better trained in identifying both the utility and the limitations of AI and into methods of validation and continuous quality checks with integration of AI into clinical workflows,” he noted.

The study was funded by the National Heart, Lung, and Blood Institute. The researchers had no financial conflicts to disclose. Dr. Pal had no financial conflicts to disclose.

A version of this article first appeared on Medscape.com.

Systematically biased artificial intelligence (AI) models did not improve clinicians’ accuracy in diagnosing hospitalized patients, based on data from more than 450 clinicians.

“Artificial Intelligence (AI) could support clinicians in their diagnostic decisions of hospitalized patients but could also be biased and cause potential harm,” said Sarah Jabbour, MSE, a PhD candidate in computer science and engineering at the University of Michigan, Ann Arbor, in an interview.

“Regulatory guidance has suggested that the use of AI explanations could mitigate these harms, but the effectiveness of using AI explanations has not been established,” she said.

To examine whether AI explanations can be effective in mitigating the potential harms of systemic bias in AI models, Ms. Jabbour and colleagues conducted a randomized clinical vignette survey study. The survey was administered between April 2022 and January 2023 across 13 states, and the study population included hospitalist physicians, nurse practitioners, and physician assistants. The results were published in JAMA.

Participants were randomized to AI predictions with AI explanations (226 clinicians) or without AI explanations (231 clinicians).

The primary outcome was diagnostic accuracy for pneumonia, heart failure, and chronic obstructive pulmonary disease, defined as the number of correct diagnoses over the total number of assessments, the researchers wrote.

The clinicians viewed nine clinical vignettes of patients hospitalized with acute respiratory failure, including their presenting symptoms, physical examination, laboratory results, and chest radiographs. Clinicians viewed two vignettes with no AI model input to establish baseline diagnostic accuracy. They made three assessments in each vignette, one for each diagnosis. The order of the vignettes was two without AI predictions (to establish baseline diagnostic accuracy), six with AI predictions, and one with a clinical consultation by a hypothetical colleague. The vignettes included standard and systematically biased AI models.

The baseline diagnostic accuracy was 73% for the diagnoses of pneumonia, heart failure, and chronic obstructive pulmonary disease. Clinicians’ accuracy increased by 2.9% when they viewed a standard diagnostic AI model without explanations and by 4.4% when they viewed models with AI explanations.

However, clinicians’ accuracy decreased by 11.3% after viewing systematically biased AI model predictions without explanations compared with baseline, and biased AI model predictions with explanations decreased accuracy by 9.1%.

The decrease in accuracy with systematically biased AI predictions without explanations was mainly attributable to a decrease in the participants’ diagnostic specificity, the researchers noted, but the addition of explanations did little to improve it, the researchers said.

Potentially Useful but Still Imperfect

The findings were limited by several factors including the use of a web-based survey, which differs from surveys in a clinical setting, the researchers wrote. Other limitations included the younger than average study population, and the focus on the clinicians making treatment decisions, vs other clinicians who might have a better understanding of the AI explanations.

“In our study, explanations were presented in a way that were considered to be obvious, where the AI model was completely focused on areas of the chest X-rays unrelated to the clinical condition,” Ms. Jabbour told this news organization. “We hypothesized that if presented with such explanations, the participants in our study would notice that the model was behaving incorrectly and not rely on its predictions. This was surprisingly not the case, and the explanations when presented alongside biased AI predictions had seemingly no effect in mitigating clinicians’ overreliance on biased AI,” she said.

“AI is being developed at an extraordinary rate, and our study shows that it has the potential to improve clinical decision-making. At the same time, it could harm clinical decision-making when biased,” Ms. Jabbour said. “We must be thoughtful about how to carefully integrate AI into clinical workflows, with the goal of improving clinical care while not introducing systematic errors or harming patients,” she added.

Looking ahead, “There are several potential research areas that could be explored,” said Ms. Jabbour. “Researchers should focus on careful validation of AI models to identify biased model behavior prior to deployment. AI researchers should also continue including and communicating with clinicians during the development of AI tools to better understand clinicians’ needs and how they interact with AI,” she said. “This is not an exhaustive list of research directions, and it will take much discussion between experts across disciplines such as AI, human computer interaction, and medicine to ultimately deploy AI safely into clinical care.”

Don’t Overestimate AI

“With the increasing use of artificial intelligence and machine learning in other spheres, there has been an increase in interest in exploring how they can be utilized to improve clinical outcomes,” said Suman Pal, MD, assistant professor in the division of hospital medicine at the University of New Mexico, Albuquerque, in an interview. “However, concerns remain regarding the possible harms and ways to mitigate them,” said Dr. Pal, who was not involved in the current study.

In the current study, “It was interesting to note that explanations did not significantly mitigate the decrease in clinician accuracy from systematically biased AI model predictions,” Dr. Pal said.

“For the clinician, the findings of this study caution against overreliance on AI in clinical decision-making, especially because of the risk of exacerbating existing health disparities due to systemic inequities in existing literature,” Dr. Pal told this news organization.

“Additional research is needed to explore how clinicians can be better trained in identifying both the utility and the limitations of AI and into methods of validation and continuous quality checks with integration of AI into clinical workflows,” he noted.

The study was funded by the National Heart, Lung, and Blood Institute. The researchers had no financial conflicts to disclose. Dr. Pal had no financial conflicts to disclose.

A version of this article first appeared on Medscape.com.

Systematically biased artificial intelligence (AI) models did not improve clinicians’ accuracy in diagnosing hospitalized patients, based on data from more than 450 clinicians.

“Artificial Intelligence (AI) could support clinicians in their diagnostic decisions of hospitalized patients but could also be biased and cause potential harm,” said Sarah Jabbour, MSE, a PhD candidate in computer science and engineering at the University of Michigan, Ann Arbor, in an interview.

“Regulatory guidance has suggested that the use of AI explanations could mitigate these harms, but the effectiveness of using AI explanations has not been established,” she said.

To examine whether AI explanations can be effective in mitigating the potential harms of systemic bias in AI models, Ms. Jabbour and colleagues conducted a randomized clinical vignette survey study. The survey was administered between April 2022 and January 2023 across 13 states, and the study population included hospitalist physicians, nurse practitioners, and physician assistants. The results were published in JAMA.

Participants were randomized to AI predictions with AI explanations (226 clinicians) or without AI explanations (231 clinicians).

The primary outcome was diagnostic accuracy for pneumonia, heart failure, and chronic obstructive pulmonary disease, defined as the number of correct diagnoses over the total number of assessments, the researchers wrote.

The clinicians viewed nine clinical vignettes of patients hospitalized with acute respiratory failure, including their presenting symptoms, physical examination, laboratory results, and chest radiographs. Clinicians viewed two vignettes with no AI model input to establish baseline diagnostic accuracy. They made three assessments in each vignette, one for each diagnosis. The order of the vignettes was two without AI predictions (to establish baseline diagnostic accuracy), six with AI predictions, and one with a clinical consultation by a hypothetical colleague. The vignettes included standard and systematically biased AI models.

The baseline diagnostic accuracy was 73% for the diagnoses of pneumonia, heart failure, and chronic obstructive pulmonary disease. Clinicians’ accuracy increased by 2.9% when they viewed a standard diagnostic AI model without explanations and by 4.4% when they viewed models with AI explanations.

However, clinicians’ accuracy decreased by 11.3% after viewing systematically biased AI model predictions without explanations compared with baseline, and biased AI model predictions with explanations decreased accuracy by 9.1%.

The decrease in accuracy with systematically biased AI predictions without explanations was mainly attributable to a decrease in the participants’ diagnostic specificity, the researchers noted, but the addition of explanations did little to improve it, the researchers said.

Potentially Useful but Still Imperfect

The findings were limited by several factors including the use of a web-based survey, which differs from surveys in a clinical setting, the researchers wrote. Other limitations included the younger than average study population, and the focus on the clinicians making treatment decisions, vs other clinicians who might have a better understanding of the AI explanations.

“In our study, explanations were presented in a way that were considered to be obvious, where the AI model was completely focused on areas of the chest X-rays unrelated to the clinical condition,” Ms. Jabbour told this news organization. “We hypothesized that if presented with such explanations, the participants in our study would notice that the model was behaving incorrectly and not rely on its predictions. This was surprisingly not the case, and the explanations when presented alongside biased AI predictions had seemingly no effect in mitigating clinicians’ overreliance on biased AI,” she said.

“AI is being developed at an extraordinary rate, and our study shows that it has the potential to improve clinical decision-making. At the same time, it could harm clinical decision-making when biased,” Ms. Jabbour said. “We must be thoughtful about how to carefully integrate AI into clinical workflows, with the goal of improving clinical care while not introducing systematic errors or harming patients,” she added.

Looking ahead, “There are several potential research areas that could be explored,” said Ms. Jabbour. “Researchers should focus on careful validation of AI models to identify biased model behavior prior to deployment. AI researchers should also continue including and communicating with clinicians during the development of AI tools to better understand clinicians’ needs and how they interact with AI,” she said. “This is not an exhaustive list of research directions, and it will take much discussion between experts across disciplines such as AI, human computer interaction, and medicine to ultimately deploy AI safely into clinical care.”

Don’t Overestimate AI

“With the increasing use of artificial intelligence and machine learning in other spheres, there has been an increase in interest in exploring how they can be utilized to improve clinical outcomes,” said Suman Pal, MD, assistant professor in the division of hospital medicine at the University of New Mexico, Albuquerque, in an interview. “However, concerns remain regarding the possible harms and ways to mitigate them,” said Dr. Pal, who was not involved in the current study.

In the current study, “It was interesting to note that explanations did not significantly mitigate the decrease in clinician accuracy from systematically biased AI model predictions,” Dr. Pal said.

“For the clinician, the findings of this study caution against overreliance on AI in clinical decision-making, especially because of the risk of exacerbating existing health disparities due to systemic inequities in existing literature,” Dr. Pal told this news organization.

“Additional research is needed to explore how clinicians can be better trained in identifying both the utility and the limitations of AI and into methods of validation and continuous quality checks with integration of AI into clinical workflows,” he noted.

The study was funded by the National Heart, Lung, and Blood Institute. The researchers had no financial conflicts to disclose. Dr. Pal had no financial conflicts to disclose.

A version of this article first appeared on Medscape.com.

Adults who used thiazide diuretics for hypertension were more likely than were those who used nonthiazide agents to develop hyponatremia within 2 years of starting treatment, a new study of more than 180,000 people has found.

Although thiazide diuretics generally are well-tolerated in the routine treatment of uncomplicated hypertension, severe adverse effects are possible, and their frequency has not been examined, according to Niklas Worm Andersson, MD, of Statens Serum Institut, in Copenhagen, Denmark, and his colleagues.

“Thiazide diuretics are commonly used drugs for the treatment of uncomplicated hypertension, and hyponatremia is a known potential side effect to thiazide treatment, but the frequency of this adverse event is inconsistently reported across drug labels,” Dr. Andersson told this news organization.

Product labels for thiazide diuretics list hyponatremia as a potential adverse event that can occur rarely (defined as a range from less than 1 in 10,000 to less than 1 in 100 individuals), but the extent of the burden is unclear given the wide range of symptoms of the condition, the researchers write. 

In a study published in Annals of Internal Medicine, Dr. Andersson and his colleagues reviewed data from population-based registries in Denmark of adults aged 40 years or older with uncomplicated hypertension, no recent prescriptions for antihypertensives, and no previous history of hyponatremia. They emulated two target trials. One trial compared the incidence of hyponatremia in new users of bendroflumethiazide (BFZ) vs a calcium-channel blocker (CCB). The other emulation compared the incidence of hyponatremia in new users of hydrochlorothiazide (HCTZ) plus a renin-angiotensin system (RAS) inhibitor vs a RAS inhibitor without HCTZ. 

The primary outcome was hyponatremia, defined as blood sodium < 130 mmol/L, within 2 years of starting treatment. 

The 2-year incidence of hyponatremia for the two thiazide diuretics was 3.83% for BFZ and 3.51% for HCTZ-RAS inhibitor. The risk difference in the incidence of hyponatremia was 1.35% for BFZ vs CCB and 1.38% for HCTZ-RAS inhibitor vs RAS inhibitor, the researchers reported. 

The study population included 37,786 new users of BFZ who were compared with 44,963 new users of CCBs as well as 11,943 new users of HCTZ-RAS inhibitors who were compared with 85,784 new users of RAS inhibitors only. 

Overall, older age and a greater number of comorbidities increased the cumulative hyponatremia in new users of thiazide-based hypertensives. The risk differences among individuals aged 80 years or older were 4.80% in the BFZ vs CCB study and 5.52% in the HCTZ-RAS inhibitor vs RAS inhibitor study. Among participants with three or more comorbidities, the risk differences in the two studies were 5.24% and 2.91%, respectively, Dr. Andersson’s group found.

The findings were limited by several factors, mainly the potential for confounding on the basis of the assumption that filled prescriptions equaled drug use, the researchers noted. Other limitations included the focus on new users and a Danish population only, which might limit generalizability, and a lack of data on blood pressure measures.

However, the results suggest a greater risk for hyponatremia with thiazide diuretics than what the drug labels indicate, especially early in treatment, the researchers concluded.

 

Data Reinforce Need for Vigilance in the Clinic

“Our findings highlight the continued need for clinical awareness and monitoring of this adverse drug reaction; particularly during the first months of treatment, in persons who are older or who have comorbidities,” Dr. Andersson told this news organization. “Further mapping of potential subpopulations at risk in terms of specific comorbidities is important to improve the prevention of this adverse event.”

“The thiazide diuretics have been recommended as first-line therapy for hypertension, and it was important to evaluate the potential development of hyponatremia, especially in the older patients given the potentially serious health effects caused by hyponatremia,” said Noel Deep, MD, a general internist in private practice in Antigo, Wisconsin. Dr. Deep, who was not involved in the study, also serves as chief medical officer and a staff physician at Aspirus Langlade Hospital in Antigo. 

The current study findings were not surprising, Dr. Deep added. “I have seen this occur in my patients, especially in the older female patients,” he said. “The results reinforce my practice of monitoring the electrolytes and renal function in 1-2 weeks after starting a thiazide diuretic, and then at regular intervals.”

In practice, clinicians should be aware of the potential development of hyponatremia and monitor and address the electrolyte abnormalities, Dr. Deep said. “While thiazide and thiazide-like diuretics are an important component of our treatment options for patients with hypertension and other conditions, we should also ensure that we are cognizant of and address the potential side effects or electrolyte imbalances caused by the medications.” 

The study was funded by the Independent Research Fund Denmark, Helsefonden, Dagmar Marshalls Fond, Gangstedfonden, A.P. Møller and Chastine Mc-Kinney Møller Foundation, Brødrene Hartmanns Fond, and Snedkermester Sophus Jacobsen og hustru Astrid Jacobsens Fond.

The researchers had no financial conflicts to disclose. Dr. Deep had no financial conflicts to disclose.

A version of this article first appeared on Medscape.com.

Adults who used thiazide diuretics for hypertension were more likely than were those who used nonthiazide agents to develop hyponatremia within 2 years of starting treatment, a new study of more than 180,000 people has found.

Although thiazide diuretics generally are well-tolerated in the routine treatment of uncomplicated hypertension, severe adverse effects are possible, and their frequency has not been examined, according to Niklas Worm Andersson, MD, of Statens Serum Institut, in Copenhagen, Denmark, and his colleagues.

“Thiazide diuretics are commonly used drugs for the treatment of uncomplicated hypertension, and hyponatremia is a known potential side effect to thiazide treatment, but the frequency of this adverse event is inconsistently reported across drug labels,” Dr. Andersson told this news organization.

Product labels for thiazide diuretics list hyponatremia as a potential adverse event that can occur rarely (defined as a range from less than 1 in 10,000 to less than 1 in 100 individuals), but the extent of the burden is unclear given the wide range of symptoms of the condition, the researchers write. 

In a study published in Annals of Internal Medicine, Dr. Andersson and his colleagues reviewed data from population-based registries in Denmark of adults aged 40 years or older with uncomplicated hypertension, no recent prescriptions for antihypertensives, and no previous history of hyponatremia. They emulated two target trials. One trial compared the incidence of hyponatremia in new users of bendroflumethiazide (BFZ) vs a calcium-channel blocker (CCB). The other emulation compared the incidence of hyponatremia in new users of hydrochlorothiazide (HCTZ) plus a renin-angiotensin system (RAS) inhibitor vs a RAS inhibitor without HCTZ. 

The primary outcome was hyponatremia, defined as blood sodium < 130 mmol/L, within 2 years of starting treatment. 

The 2-year incidence of hyponatremia for the two thiazide diuretics was 3.83% for BFZ and 3.51% for HCTZ-RAS inhibitor. The risk difference in the incidence of hyponatremia was 1.35% for BFZ vs CCB and 1.38% for HCTZ-RAS inhibitor vs RAS inhibitor, the researchers reported. 

The study population included 37,786 new users of BFZ who were compared with 44,963 new users of CCBs as well as 11,943 new users of HCTZ-RAS inhibitors who were compared with 85,784 new users of RAS inhibitors only. 

Overall, older age and a greater number of comorbidities increased the cumulative hyponatremia in new users of thiazide-based hypertensives. The risk differences among individuals aged 80 years or older were 4.80% in the BFZ vs CCB study and 5.52% in the HCTZ-RAS inhibitor vs RAS inhibitor study. Among participants with three or more comorbidities, the risk differences in the two studies were 5.24% and 2.91%, respectively, Dr. Andersson’s group found.

The findings were limited by several factors, mainly the potential for confounding on the basis of the assumption that filled prescriptions equaled drug use, the researchers noted. Other limitations included the focus on new users and a Danish population only, which might limit generalizability, and a lack of data on blood pressure measures.

However, the results suggest a greater risk for hyponatremia with thiazide diuretics than what the drug labels indicate, especially early in treatment, the researchers concluded.

 

Data Reinforce Need for Vigilance in the Clinic

“Our findings highlight the continued need for clinical awareness and monitoring of this adverse drug reaction; particularly during the first months of treatment, in persons who are older or who have comorbidities,” Dr. Andersson told this news organization. “Further mapping of potential subpopulations at risk in terms of specific comorbidities is important to improve the prevention of this adverse event.”

“The thiazide diuretics have been recommended as first-line therapy for hypertension, and it was important to evaluate the potential development of hyponatremia, especially in the older patients given the potentially serious health effects caused by hyponatremia,” said Noel Deep, MD, a general internist in private practice in Antigo, Wisconsin. Dr. Deep, who was not involved in the study, also serves as chief medical officer and a staff physician at Aspirus Langlade Hospital in Antigo. 

The current study findings were not surprising, Dr. Deep added. “I have seen this occur in my patients, especially in the older female patients,” he said. “The results reinforce my practice of monitoring the electrolytes and renal function in 1-2 weeks after starting a thiazide diuretic, and then at regular intervals.”

In practice, clinicians should be aware of the potential development of hyponatremia and monitor and address the electrolyte abnormalities, Dr. Deep said. “While thiazide and thiazide-like diuretics are an important component of our treatment options for patients with hypertension and other conditions, we should also ensure that we are cognizant of and address the potential side effects or electrolyte imbalances caused by the medications.” 

The study was funded by the Independent Research Fund Denmark, Helsefonden, Dagmar Marshalls Fond, Gangstedfonden, A.P. Møller and Chastine Mc-Kinney Møller Foundation, Brødrene Hartmanns Fond, and Snedkermester Sophus Jacobsen og hustru Astrid Jacobsens Fond.

The researchers had no financial conflicts to disclose. Dr. Deep had no financial conflicts to disclose.

A version of this article first appeared on Medscape.com.

Adults who used thiazide diuretics for hypertension were more likely than were those who used nonthiazide agents to develop hyponatremia within 2 years of starting treatment, a new study of more than 180,000 people has found.

Although thiazide diuretics generally are well-tolerated in the routine treatment of uncomplicated hypertension, severe adverse effects are possible, and their frequency has not been examined, according to Niklas Worm Andersson, MD, of Statens Serum Institut, in Copenhagen, Denmark, and his colleagues.

“Thiazide diuretics are commonly used drugs for the treatment of uncomplicated hypertension, and hyponatremia is a known potential side effect to thiazide treatment, but the frequency of this adverse event is inconsistently reported across drug labels,” Dr. Andersson told this news organization.

Product labels for thiazide diuretics list hyponatremia as a potential adverse event that can occur rarely (defined as a range from less than 1 in 10,000 to less than 1 in 100 individuals), but the extent of the burden is unclear given the wide range of symptoms of the condition, the researchers write. 

In a study published in Annals of Internal Medicine, Dr. Andersson and his colleagues reviewed data from population-based registries in Denmark of adults aged 40 years or older with uncomplicated hypertension, no recent prescriptions for antihypertensives, and no previous history of hyponatremia. They emulated two target trials. One trial compared the incidence of hyponatremia in new users of bendroflumethiazide (BFZ) vs a calcium-channel blocker (CCB). The other emulation compared the incidence of hyponatremia in new users of hydrochlorothiazide (HCTZ) plus a renin-angiotensin system (RAS) inhibitor vs a RAS inhibitor without HCTZ. 

The primary outcome was hyponatremia, defined as blood sodium < 130 mmol/L, within 2 years of starting treatment. 

The 2-year incidence of hyponatremia for the two thiazide diuretics was 3.83% for BFZ and 3.51% for HCTZ-RAS inhibitor. The risk difference in the incidence of hyponatremia was 1.35% for BFZ vs CCB and 1.38% for HCTZ-RAS inhibitor vs RAS inhibitor, the researchers reported. 

The study population included 37,786 new users of BFZ who were compared with 44,963 new users of CCBs as well as 11,943 new users of HCTZ-RAS inhibitors who were compared with 85,784 new users of RAS inhibitors only. 

Overall, older age and a greater number of comorbidities increased the cumulative hyponatremia in new users of thiazide-based hypertensives. The risk differences among individuals aged 80 years or older were 4.80% in the BFZ vs CCB study and 5.52% in the HCTZ-RAS inhibitor vs RAS inhibitor study. Among participants with three or more comorbidities, the risk differences in the two studies were 5.24% and 2.91%, respectively, Dr. Andersson’s group found.

The findings were limited by several factors, mainly the potential for confounding on the basis of the assumption that filled prescriptions equaled drug use, the researchers noted. Other limitations included the focus on new users and a Danish population only, which might limit generalizability, and a lack of data on blood pressure measures.

However, the results suggest a greater risk for hyponatremia with thiazide diuretics than what the drug labels indicate, especially early in treatment, the researchers concluded.

 

Data Reinforce Need for Vigilance in the Clinic

“Our findings highlight the continued need for clinical awareness and monitoring of this adverse drug reaction; particularly during the first months of treatment, in persons who are older or who have comorbidities,” Dr. Andersson told this news organization. “Further mapping of potential subpopulations at risk in terms of specific comorbidities is important to improve the prevention of this adverse event.”

“The thiazide diuretics have been recommended as first-line therapy for hypertension, and it was important to evaluate the potential development of hyponatremia, especially in the older patients given the potentially serious health effects caused by hyponatremia,” said Noel Deep, MD, a general internist in private practice in Antigo, Wisconsin. Dr. Deep, who was not involved in the study, also serves as chief medical officer and a staff physician at Aspirus Langlade Hospital in Antigo. 

The current study findings were not surprising, Dr. Deep added. “I have seen this occur in my patients, especially in the older female patients,” he said. “The results reinforce my practice of monitoring the electrolytes and renal function in 1-2 weeks after starting a thiazide diuretic, and then at regular intervals.”

In practice, clinicians should be aware of the potential development of hyponatremia and monitor and address the electrolyte abnormalities, Dr. Deep said. “While thiazide and thiazide-like diuretics are an important component of our treatment options for patients with hypertension and other conditions, we should also ensure that we are cognizant of and address the potential side effects or electrolyte imbalances caused by the medications.” 

The study was funded by the Independent Research Fund Denmark, Helsefonden, Dagmar Marshalls Fond, Gangstedfonden, A.P. Møller and Chastine Mc-Kinney Møller Foundation, Brødrene Hartmanns Fond, and Snedkermester Sophus Jacobsen og hustru Astrid Jacobsens Fond.

The researchers had no financial conflicts to disclose. Dr. Deep had no financial conflicts to disclose.

A version of this article first appeared on Medscape.com.

TOPLINE:

Both blood eosinophil-directed treatment (BET) and standard care treatment (ST) similarly reduced treatment failure following acute exacerbations in chronic obstructive pulmonary disease (COPD).

METHODOLOGY:

• The researchers randomized 152 adults with a mean age of 70 years to BET or a placebo (if eosinophil counts were less than 2%) or to standard care treatment regardless of baseline eosinophil counts; the final population available for analysis included 47 patients in the blood eosinophil group and 46 in the primary care group, with 73 and 71 exacerbations, respectively.
• Participants were assessed at baseline and at day 14, day 30, and day 90 after exacerbation; the primary outcome was the rate of treatment failure at 30 days post exacerbation, defined as any need for retreatment with antibiotics or steroids, hospitalization, or death; secondary outcomes included health-related quality of life, forced expiratory volume in 1 second, and visual analogue score respiratory symptoms.
• Participants were recruited from 14 general practices between November 6, 2017, and April 30, 2020; the study was terminated on April 30, 2023, because of the COVID-19 pandemic.

TAKEAWAY:

• BET was noninferior to ST in a noninferiority analysis.
• At 30 days post exacerbation, 14 treatment failures had occurred in the BET group and 23 in the ST group; the relative risk was 0.60 (P = .070).
• The frequency of adverse events was similar between the groups; the most common adverse events were glycosuria and hospital admission for COPD exacerbation (2% in the BET group and 1% in the ST group for both event types), and no deaths occurred during the study period.
• Subgroup analysis showed the greatest benefit in both groups was to patients with higher eosinophil counts who received prednisolone.

IN PRACTICE: 

“There was improvement of lung function, quality of life, and symptoms in exacerbations with low eosinophil count independent of whether placebo or prednisolone was prescribed,” the authors wrote in their discussion.

SOURCE:

The lead author on the study was Sanjay Ramakrishnan, MBBS, University of Oxford, United Kingdom. The study was published online in Lancet Respiratory Medicine .

LIMITATIONS:

A key limitation was an error in the randomization code that prevented the trial’s completion as a superiority study; other limitations included the relatively low number of exacerbations associated with low eosinophil counts and reduction in the recommended length of treatment with prednisolone during the study period.

DISCLOSURES:

The study was supported by the National Institute for Health and Care Research. Dr. Ramakrishnan disclosed personal salary support from the National Institute for Health and Care Research, an unrestricted research grant from AstraZeneca to his institution, and speaker fees and conference travel support from AstraZeneca, all unrelated to the current study.

A version of this article first appeared on Medscape.com.

TOPLINE:

Both blood eosinophil-directed treatment (BET) and standard care treatment (ST) similarly reduced treatment failure following acute exacerbations in chronic obstructive pulmonary disease (COPD).

METHODOLOGY:

• The researchers randomized 152 adults with a mean age of 70 years to BET or a placebo (if eosinophil counts were less than 2%) or to standard care treatment regardless of baseline eosinophil counts; the final population available for analysis included 47 patients in the blood eosinophil group and 46 in the primary care group, with 73 and 71 exacerbations, respectively.
• Participants were assessed at baseline and at day 14, day 30, and day 90 after exacerbation; the primary outcome was the rate of treatment failure at 30 days post exacerbation, defined as any need for retreatment with antibiotics or steroids, hospitalization, or death; secondary outcomes included health-related quality of life, forced expiratory volume in 1 second, and visual analogue score respiratory symptoms.
• Participants were recruited from 14 general practices between November 6, 2017, and April 30, 2020; the study was terminated on April 30, 2023, because of the COVID-19 pandemic.

TAKEAWAY:

• BET was noninferior to ST in a noninferiority analysis.
• At 30 days post exacerbation, 14 treatment failures had occurred in the BET group and 23 in the ST group; the relative risk was 0.60 (P = .070).
• The frequency of adverse events was similar between the groups; the most common adverse events were glycosuria and hospital admission for COPD exacerbation (2% in the BET group and 1% in the ST group for both event types), and no deaths occurred during the study period.
• Subgroup analysis showed the greatest benefit in both groups was to patients with higher eosinophil counts who received prednisolone.

IN PRACTICE: 

“There was improvement of lung function, quality of life, and symptoms in exacerbations with low eosinophil count independent of whether placebo or prednisolone was prescribed,” the authors wrote in their discussion.

SOURCE:

The lead author on the study was Sanjay Ramakrishnan, MBBS, University of Oxford, United Kingdom. The study was published online in Lancet Respiratory Medicine .

LIMITATIONS:

A key limitation was an error in the randomization code that prevented the trial’s completion as a superiority study; other limitations included the relatively low number of exacerbations associated with low eosinophil counts and reduction in the recommended length of treatment with prednisolone during the study period.

DISCLOSURES:

The study was supported by the National Institute for Health and Care Research. Dr. Ramakrishnan disclosed personal salary support from the National Institute for Health and Care Research, an unrestricted research grant from AstraZeneca to his institution, and speaker fees and conference travel support from AstraZeneca, all unrelated to the current study.

A version of this article first appeared on Medscape.com.

TOPLINE:

Both blood eosinophil-directed treatment (BET) and standard care treatment (ST) similarly reduced treatment failure following acute exacerbations in chronic obstructive pulmonary disease (COPD).

METHODOLOGY:

• The researchers randomized 152 adults with a mean age of 70 years to BET or a placebo (if eosinophil counts were less than 2%) or to standard care treatment regardless of baseline eosinophil counts; the final population available for analysis included 47 patients in the blood eosinophil group and 46 in the primary care group, with 73 and 71 exacerbations, respectively.
• Participants were assessed at baseline and at day 14, day 30, and day 90 after exacerbation; the primary outcome was the rate of treatment failure at 30 days post exacerbation, defined as any need for retreatment with antibiotics or steroids, hospitalization, or death; secondary outcomes included health-related quality of life, forced expiratory volume in 1 second, and visual analogue score respiratory symptoms.
• Participants were recruited from 14 general practices between November 6, 2017, and April 30, 2020; the study was terminated on April 30, 2023, because of the COVID-19 pandemic.

TAKEAWAY:

• BET was noninferior to ST in a noninferiority analysis.
• At 30 days post exacerbation, 14 treatment failures had occurred in the BET group and 23 in the ST group; the relative risk was 0.60 (P = .070).
• The frequency of adverse events was similar between the groups; the most common adverse events were glycosuria and hospital admission for COPD exacerbation (2% in the BET group and 1% in the ST group for both event types), and no deaths occurred during the study period.
• Subgroup analysis showed the greatest benefit in both groups was to patients with higher eosinophil counts who received prednisolone.

IN PRACTICE: 

“There was improvement of lung function, quality of life, and symptoms in exacerbations with low eosinophil count independent of whether placebo or prednisolone was prescribed,” the authors wrote in their discussion.

SOURCE:

The lead author on the study was Sanjay Ramakrishnan, MBBS, University of Oxford, United Kingdom. The study was published online in Lancet Respiratory Medicine .

LIMITATIONS:

A key limitation was an error in the randomization code that prevented the trial’s completion as a superiority study; other limitations included the relatively low number of exacerbations associated with low eosinophil counts and reduction in the recommended length of treatment with prednisolone during the study period.

DISCLOSURES:

The study was supported by the National Institute for Health and Care Research. Dr. Ramakrishnan disclosed personal salary support from the National Institute for Health and Care Research, an unrestricted research grant from AstraZeneca to his institution, and speaker fees and conference travel support from AstraZeneca, all unrelated to the current study.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration has approved a foam formulation of roflumilast, a phosphodiesterase-4 (PDE-4) inhibitor, for the treatment of seborrheic dermatitis, the manufacturer announced in a press release.

The 0.3% foam, marketed as Zoryve, applied once-daily, is indicated for patients aged 9 years and older with seborrheic dermatitis, and can be used anywhere on the body, including areas with hair, with no limits on duration of use, according to the company, Arcutis. A 0.3% cream formulation of roflumilast was previously approved by the FDA for the topical treatment of plaque psoriasis in patients aged 6 years and older.

Approval was based on data from the phase 3 STRATUM trial and an accompanying phase 2 study known as Trial 203. These studies included a total of 683 adults and youth aged 9 years and older with seborrheic dermatitis. Participants were randomized to roflumilast or a placebo.

At 8 weeks, 79.5 % of patients on roflumilast met the primary efficacy endpoint of Investigator Global Assessment (IGA) scores of 0 or 1 (clear or almost clear) compared with 58.0% of patients on placebo (P < .001); the results were similar in the phase 2 Trial 203 (73.1% vs. 40.8%, respectively; P < .001). Overall, more than 50% of the patients on roflumilast achieved a clear score.

Patients in the roflumilast group also showed significant improvement in all secondary endpoints, including itching, scaling, and erythema, according to the company.

In the STRATUM study, 62.8% of roflumilast-treated patients and 40.6% of placebo patients achieved a 4-point or more reduction in itch based on the Worst Itch Numerical Rating Score (P =.0001), and 28% of roflumilast-treated patients reported significant itch improvement within the first 48 hours of use, compared with 13% of placebo patients (P = .0024).

Over a treatment period of up to 1 year, no treatment-related severe adverse events were reported in the phase 2 and 3 studies. The incidence of treatment emergent adverse events was similar between the treatment and placebo groups, and the most common adverse events (occurring in 1% of more of patients) across both studies were nasopharyngitis (1.5%), nausea (1.3%), and headache (1.1%).

Roflumilast foam is scheduled to be available by the end of January 2024, according to the company. The product is for topical use only, and contraindicated for individuals with severe liver impairment.

The Food and Drug Administration has approved a foam formulation of roflumilast, a phosphodiesterase-4 (PDE-4) inhibitor, for the treatment of seborrheic dermatitis, the manufacturer announced in a press release.

The 0.3% foam, marketed as Zoryve, applied once-daily, is indicated for patients aged 9 years and older with seborrheic dermatitis, and can be used anywhere on the body, including areas with hair, with no limits on duration of use, according to the company, Arcutis. A 0.3% cream formulation of roflumilast was previously approved by the FDA for the topical treatment of plaque psoriasis in patients aged 6 years and older.

Approval was based on data from the phase 3 STRATUM trial and an accompanying phase 2 study known as Trial 203. These studies included a total of 683 adults and youth aged 9 years and older with seborrheic dermatitis. Participants were randomized to roflumilast or a placebo.

At 8 weeks, 79.5 % of patients on roflumilast met the primary efficacy endpoint of Investigator Global Assessment (IGA) scores of 0 or 1 (clear or almost clear) compared with 58.0% of patients on placebo (P < .001); the results were similar in the phase 2 Trial 203 (73.1% vs. 40.8%, respectively; P < .001). Overall, more than 50% of the patients on roflumilast achieved a clear score.

Patients in the roflumilast group also showed significant improvement in all secondary endpoints, including itching, scaling, and erythema, according to the company.

In the STRATUM study, 62.8% of roflumilast-treated patients and 40.6% of placebo patients achieved a 4-point or more reduction in itch based on the Worst Itch Numerical Rating Score (P =.0001), and 28% of roflumilast-treated patients reported significant itch improvement within the first 48 hours of use, compared with 13% of placebo patients (P = .0024).

Over a treatment period of up to 1 year, no treatment-related severe adverse events were reported in the phase 2 and 3 studies. The incidence of treatment emergent adverse events was similar between the treatment and placebo groups, and the most common adverse events (occurring in 1% of more of patients) across both studies were nasopharyngitis (1.5%), nausea (1.3%), and headache (1.1%).

Roflumilast foam is scheduled to be available by the end of January 2024, according to the company. The product is for topical use only, and contraindicated for individuals with severe liver impairment.

The Food and Drug Administration has approved a foam formulation of roflumilast, a phosphodiesterase-4 (PDE-4) inhibitor, for the treatment of seborrheic dermatitis, the manufacturer announced in a press release.

The 0.3% foam, marketed as Zoryve, applied once-daily, is indicated for patients aged 9 years and older with seborrheic dermatitis, and can be used anywhere on the body, including areas with hair, with no limits on duration of use, according to the company, Arcutis. A 0.3% cream formulation of roflumilast was previously approved by the FDA for the topical treatment of plaque psoriasis in patients aged 6 years and older.

Approval was based on data from the phase 3 STRATUM trial and an accompanying phase 2 study known as Trial 203. These studies included a total of 683 adults and youth aged 9 years and older with seborrheic dermatitis. Participants were randomized to roflumilast or a placebo.

At 8 weeks, 79.5 % of patients on roflumilast met the primary efficacy endpoint of Investigator Global Assessment (IGA) scores of 0 or 1 (clear or almost clear) compared with 58.0% of patients on placebo (P < .001); the results were similar in the phase 2 Trial 203 (73.1% vs. 40.8%, respectively; P < .001). Overall, more than 50% of the patients on roflumilast achieved a clear score.

Patients in the roflumilast group also showed significant improvement in all secondary endpoints, including itching, scaling, and erythema, according to the company.

In the STRATUM study, 62.8% of roflumilast-treated patients and 40.6% of placebo patients achieved a 4-point or more reduction in itch based on the Worst Itch Numerical Rating Score (P =.0001), and 28% of roflumilast-treated patients reported significant itch improvement within the first 48 hours of use, compared with 13% of placebo patients (P = .0024).

Over a treatment period of up to 1 year, no treatment-related severe adverse events were reported in the phase 2 and 3 studies. The incidence of treatment emergent adverse events was similar between the treatment and placebo groups, and the most common adverse events (occurring in 1% of more of patients) across both studies were nasopharyngitis (1.5%), nausea (1.3%), and headache (1.1%).

Roflumilast foam is scheduled to be available by the end of January 2024, according to the company. The product is for topical use only, and contraindicated for individuals with severe liver impairment.

Use of pharmacomechanical catheter-directory thrombolysis significantly reduced the number of pulmonary artery branches with total or subtotal occlusions in patients with acute pulmonary embolism, based on data from more than 100 individuals.

Reduced distal vascular volume is a significant predictor of 30-day and 90-day mortality in acute pulmonary embolism (PE) patients, and pulmonary obstruction is often the cause, wrote Riyaz Bashir, MD, of Temple University, Philadelphia, Pennsylvania, and colleagues.

Some studies of catheter-based treatments have shown a reduction in pulmonary artery (PA) obstruction in PE patients, but the impact has been modest, the researchers said.

“The recently published RESCUE (Recombinant tPA by Endovascular Administration for the Treatment of Submassive PE Using CDT for the Reduction of Thrombus Burden) trial showed a 35.9% reduction in PA obstruction using the Refined Modified Miller Index (RMMI), the largest reduction of all published catheter studies with core lab measurement, with similar doses of tissue plasminogen activator (tPA),” the researchers wrote.

The Bashir endovascular catheter was designed to maximize thrombus reduction via a pharmacomechanical infusion. The catheter features an expandable basket of 6 nitinol-reinforced infusion limbs.

“There are three crucial goals that we want to accomplish in patients who have a severe pulmonary embolism,” Dr. Bashir said in an interview. “Those include, in the order of importance, survival, recovery of right ventricular function, and resolution of blocked pulmonary arteries; both segmental and proximal pulmonary arteries,” he said.

Most previous studies have focused on the first two goals, but they still need to evaluate the resolution of PA blockages carefully, said Dr. Bashir. “In our clinical practice, we have seen a large number of patients who develop debilitating shortness of breath from these blockages. We decided to carefully evaluate these blockages before and after pharmacomechanical catheter-directed thrombolysis with the Bashir endovascular catheter using the core lab data from the RESCUE study,” he said.

In the current study published in JACC: Advances), the researchers used baseline and 48-hour posttreatment contrast-enhanced chest computed tomography angiography of adult PE patients with right ventricular dilatation.

The study population included 107 adults with acute intermediate-risk PE who were treated with pharmacomechanical catheter-directory thrombolysis (PM-CDT) at 18 sites in the United States. Of these, 98 had intermediate high-risk PE with elevated troponin and/or brain-type natriuretic peptide (BNP) levels and 102 had bilateral PE.

The primary endpoint was the change in the number of segmental and proximal PA branches with total or subtotal occlusions (defined as > 65%) after 48 hours compared to baseline. Occlusions were assessed using McNemar’s test.

Patients with bilateral PE received two Bashir catheters; those with unilateral PE received one catheter each.

Each patient received a pulse spray of 2 mg of recombinant tPA (r-tPA) into each lung, followed by 5 mg of r-tPA over 5 hours; the total dose was 7 mg of r-tPA for patients with unilateral PEs and 14 mg for those with bilateral PEs, the researchers said. The median times for catheter placement and total procedure were 15 minutes and 54 minutes, respectively.

The number of segmental PA branches with total or subtotal occlusions decreased significantly, from 40.5% at baseline to 11.7% at 48 hours, and proximal PA branch total or subtotal occlusions decreased significantly, from 28.7% at baseline to 11.0% at 48 hours (P < 0.0001 for both).

The magnitude of the reductions in both total and subtotal occlusions of segmental arteries was significantly correlated with the extent of right ventricle recovery (measured by the reduction in right ventricular/left ventricular ratio) with a correlation coefficient of 0.287 (P = .0026); however, this correlation was not observed in the proximal PA arteries (correlation coefficient 0.132, P = .173).

One major bleeding event occurred within 72 hours in a patient who also experienced a device-related left common iliac vein thrombosis while not taking anticoagulation medication, and one death unrelated to PE occurred within 30 days.

“The two findings that surprised me include, first, a more than 70% reduction in total and subtotal occlusions in the segmental arteries with such a low dose of r-tPA and, second, the resolution of the blockages was seen not only in the arteries where the device was placed but also at remote sites away from the location of the catheter,” Dr. Bashir told this news organization.

The findings were limited by several factors including the lack of long-term clinical follow-up outcomes data and lack of comparison groups who underwent other treatments.

However, “This study implies that we now have a safe therapy for these patients that improves survival and right ventricular recovery in addition to dramatically improving blocked pulmonary arteries,” Dr. Bashir said.

As for additional research, “we need all the current and future prospective pulmonary embolism studies to include an assessment of pulmonary artery blockage resolution as an essential endpoint,” he said.
 

Catheter Expands Treatment Options

The current study, a subgroup analysis of the RESCUE trial, was one of the first to examine the impact of catheter-directed lysis on distal occlusions, study coauthor Parth M. Rali, MD, said in an interview.

To this point, literature has been limited to evaluation for proximal disease, said Dr. Rali, director of thoracic surgery and medicine and part of the Pulmonary Embolism Response Team at Temple University Hospital, Philadelphia.

Dr. Rali said he was encouraged to see confirmation that the BEC catheter, because of its design, works in patients with proximal or distal occlusive disease.

In clinical practice, “the catheter provides an additional option for care in patients with multiple distal occlusive disease when a systemic tissue plasminogen activator (tPA), may put patient at high bleeding risk,” Dr. Rali said.

Looking ahead, a prospective, observational multicenter study would be useful to validate the findings from the post hoc analysis of the current study, he noted.

The study was sponsored by the National Heart, Lung, and Blood Institute, Commonwealth of Pennsylvania, and Thrombolex Inc., a medical device company developing interventional catheter-based therapies for the rapid and effective treatment of acute venous thromboembolic disorders. Dr. Bashir is a cofounder and has an equity interest in Thrombolex Inc. Dr. Rali disclosed serving as a consultant for Thrombolex, Inari Medical, Viz AI, and ThinkSono.

Use of pharmacomechanical catheter-directory thrombolysis significantly reduced the number of pulmonary artery branches with total or subtotal occlusions in patients with acute pulmonary embolism, based on data from more than 100 individuals.

Reduced distal vascular volume is a significant predictor of 30-day and 90-day mortality in acute pulmonary embolism (PE) patients, and pulmonary obstruction is often the cause, wrote Riyaz Bashir, MD, of Temple University, Philadelphia, Pennsylvania, and colleagues.

Some studies of catheter-based treatments have shown a reduction in pulmonary artery (PA) obstruction in PE patients, but the impact has been modest, the researchers said.

“The recently published RESCUE (Recombinant tPA by Endovascular Administration for the Treatment of Submassive PE Using CDT for the Reduction of Thrombus Burden) trial showed a 35.9% reduction in PA obstruction using the Refined Modified Miller Index (RMMI), the largest reduction of all published catheter studies with core lab measurement, with similar doses of tissue plasminogen activator (tPA),” the researchers wrote.

The Bashir endovascular catheter was designed to maximize thrombus reduction via a pharmacomechanical infusion. The catheter features an expandable basket of 6 nitinol-reinforced infusion limbs.

“There are three crucial goals that we want to accomplish in patients who have a severe pulmonary embolism,” Dr. Bashir said in an interview. “Those include, in the order of importance, survival, recovery of right ventricular function, and resolution of blocked pulmonary arteries; both segmental and proximal pulmonary arteries,” he said.

Most previous studies have focused on the first two goals, but they still need to evaluate the resolution of PA blockages carefully, said Dr. Bashir. “In our clinical practice, we have seen a large number of patients who develop debilitating shortness of breath from these blockages. We decided to carefully evaluate these blockages before and after pharmacomechanical catheter-directed thrombolysis with the Bashir endovascular catheter using the core lab data from the RESCUE study,” he said.

In the current study published in JACC: Advances), the researchers used baseline and 48-hour posttreatment contrast-enhanced chest computed tomography angiography of adult PE patients with right ventricular dilatation.

The study population included 107 adults with acute intermediate-risk PE who were treated with pharmacomechanical catheter-directory thrombolysis (PM-CDT) at 18 sites in the United States. Of these, 98 had intermediate high-risk PE with elevated troponin and/or brain-type natriuretic peptide (BNP) levels and 102 had bilateral PE.

The primary endpoint was the change in the number of segmental and proximal PA branches with total or subtotal occlusions (defined as > 65%) after 48 hours compared to baseline. Occlusions were assessed using McNemar’s test.

Patients with bilateral PE received two Bashir catheters; those with unilateral PE received one catheter each.

Each patient received a pulse spray of 2 mg of recombinant tPA (r-tPA) into each lung, followed by 5 mg of r-tPA over 5 hours; the total dose was 7 mg of r-tPA for patients with unilateral PEs and 14 mg for those with bilateral PEs, the researchers said. The median times for catheter placement and total procedure were 15 minutes and 54 minutes, respectively.

The number of segmental PA branches with total or subtotal occlusions decreased significantly, from 40.5% at baseline to 11.7% at 48 hours, and proximal PA branch total or subtotal occlusions decreased significantly, from 28.7% at baseline to 11.0% at 48 hours (P < 0.0001 for both).

The magnitude of the reductions in both total and subtotal occlusions of segmental arteries was significantly correlated with the extent of right ventricle recovery (measured by the reduction in right ventricular/left ventricular ratio) with a correlation coefficient of 0.287 (P = .0026); however, this correlation was not observed in the proximal PA arteries (correlation coefficient 0.132, P = .173).

One major bleeding event occurred within 72 hours in a patient who also experienced a device-related left common iliac vein thrombosis while not taking anticoagulation medication, and one death unrelated to PE occurred within 30 days.

“The two findings that surprised me include, first, a more than 70% reduction in total and subtotal occlusions in the segmental arteries with such a low dose of r-tPA and, second, the resolution of the blockages was seen not only in the arteries where the device was placed but also at remote sites away from the location of the catheter,” Dr. Bashir told this news organization.

The findings were limited by several factors including the lack of long-term clinical follow-up outcomes data and lack of comparison groups who underwent other treatments.

However, “This study implies that we now have a safe therapy for these patients that improves survival and right ventricular recovery in addition to dramatically improving blocked pulmonary arteries,” Dr. Bashir said.

As for additional research, “we need all the current and future prospective pulmonary embolism studies to include an assessment of pulmonary artery blockage resolution as an essential endpoint,” he said.
 

Catheter Expands Treatment Options

The current study, a subgroup analysis of the RESCUE trial, was one of the first to examine the impact of catheter-directed lysis on distal occlusions, study coauthor Parth M. Rali, MD, said in an interview.

To this point, literature has been limited to evaluation for proximal disease, said Dr. Rali, director of thoracic surgery and medicine and part of the Pulmonary Embolism Response Team at Temple University Hospital, Philadelphia.

Dr. Rali said he was encouraged to see confirmation that the BEC catheter, because of its design, works in patients with proximal or distal occlusive disease.

In clinical practice, “the catheter provides an additional option for care in patients with multiple distal occlusive disease when a systemic tissue plasminogen activator (tPA), may put patient at high bleeding risk,” Dr. Rali said.

Looking ahead, a prospective, observational multicenter study would be useful to validate the findings from the post hoc analysis of the current study, he noted.

The study was sponsored by the National Heart, Lung, and Blood Institute, Commonwealth of Pennsylvania, and Thrombolex Inc., a medical device company developing interventional catheter-based therapies for the rapid and effective treatment of acute venous thromboembolic disorders. Dr. Bashir is a cofounder and has an equity interest in Thrombolex Inc. Dr. Rali disclosed serving as a consultant for Thrombolex, Inari Medical, Viz AI, and ThinkSono.

Use of pharmacomechanical catheter-directory thrombolysis significantly reduced the number of pulmonary artery branches with total or subtotal occlusions in patients with acute pulmonary embolism, based on data from more than 100 individuals.

Reduced distal vascular volume is a significant predictor of 30-day and 90-day mortality in acute pulmonary embolism (PE) patients, and pulmonary obstruction is often the cause, wrote Riyaz Bashir, MD, of Temple University, Philadelphia, Pennsylvania, and colleagues.

Some studies of catheter-based treatments have shown a reduction in pulmonary artery (PA) obstruction in PE patients, but the impact has been modest, the researchers said.

“The recently published RESCUE (Recombinant tPA by Endovascular Administration for the Treatment of Submassive PE Using CDT for the Reduction of Thrombus Burden) trial showed a 35.9% reduction in PA obstruction using the Refined Modified Miller Index (RMMI), the largest reduction of all published catheter studies with core lab measurement, with similar doses of tissue plasminogen activator (tPA),” the researchers wrote.

The Bashir endovascular catheter was designed to maximize thrombus reduction via a pharmacomechanical infusion. The catheter features an expandable basket of 6 nitinol-reinforced infusion limbs.

“There are three crucial goals that we want to accomplish in patients who have a severe pulmonary embolism,” Dr. Bashir said in an interview. “Those include, in the order of importance, survival, recovery of right ventricular function, and resolution of blocked pulmonary arteries; both segmental and proximal pulmonary arteries,” he said.

Most previous studies have focused on the first two goals, but they still need to evaluate the resolution of PA blockages carefully, said Dr. Bashir. “In our clinical practice, we have seen a large number of patients who develop debilitating shortness of breath from these blockages. We decided to carefully evaluate these blockages before and after pharmacomechanical catheter-directed thrombolysis with the Bashir endovascular catheter using the core lab data from the RESCUE study,” he said.

In the current study published in JACC: Advances), the researchers used baseline and 48-hour posttreatment contrast-enhanced chest computed tomography angiography of adult PE patients with right ventricular dilatation.

The study population included 107 adults with acute intermediate-risk PE who were treated with pharmacomechanical catheter-directory thrombolysis (PM-CDT) at 18 sites in the United States. Of these, 98 had intermediate high-risk PE with elevated troponin and/or brain-type natriuretic peptide (BNP) levels and 102 had bilateral PE.

The primary endpoint was the change in the number of segmental and proximal PA branches with total or subtotal occlusions (defined as > 65%) after 48 hours compared to baseline. Occlusions were assessed using McNemar’s test.

Patients with bilateral PE received two Bashir catheters; those with unilateral PE received one catheter each.

Each patient received a pulse spray of 2 mg of recombinant tPA (r-tPA) into each lung, followed by 5 mg of r-tPA over 5 hours; the total dose was 7 mg of r-tPA for patients with unilateral PEs and 14 mg for those with bilateral PEs, the researchers said. The median times for catheter placement and total procedure were 15 minutes and 54 minutes, respectively.

The number of segmental PA branches with total or subtotal occlusions decreased significantly, from 40.5% at baseline to 11.7% at 48 hours, and proximal PA branch total or subtotal occlusions decreased significantly, from 28.7% at baseline to 11.0% at 48 hours (P < 0.0001 for both).

The magnitude of the reductions in both total and subtotal occlusions of segmental arteries was significantly correlated with the extent of right ventricle recovery (measured by the reduction in right ventricular/left ventricular ratio) with a correlation coefficient of 0.287 (P = .0026); however, this correlation was not observed in the proximal PA arteries (correlation coefficient 0.132, P = .173).

One major bleeding event occurred within 72 hours in a patient who also experienced a device-related left common iliac vein thrombosis while not taking anticoagulation medication, and one death unrelated to PE occurred within 30 days.

“The two findings that surprised me include, first, a more than 70% reduction in total and subtotal occlusions in the segmental arteries with such a low dose of r-tPA and, second, the resolution of the blockages was seen not only in the arteries where the device was placed but also at remote sites away from the location of the catheter,” Dr. Bashir told this news organization.

The findings were limited by several factors including the lack of long-term clinical follow-up outcomes data and lack of comparison groups who underwent other treatments.

However, “This study implies that we now have a safe therapy for these patients that improves survival and right ventricular recovery in addition to dramatically improving blocked pulmonary arteries,” Dr. Bashir said.

As for additional research, “we need all the current and future prospective pulmonary embolism studies to include an assessment of pulmonary artery blockage resolution as an essential endpoint,” he said.
 

Catheter Expands Treatment Options

The current study, a subgroup analysis of the RESCUE trial, was one of the first to examine the impact of catheter-directed lysis on distal occlusions, study coauthor Parth M. Rali, MD, said in an interview.

To this point, literature has been limited to evaluation for proximal disease, said Dr. Rali, director of thoracic surgery and medicine and part of the Pulmonary Embolism Response Team at Temple University Hospital, Philadelphia.

Dr. Rali said he was encouraged to see confirmation that the BEC catheter, because of its design, works in patients with proximal or distal occlusive disease.

In clinical practice, “the catheter provides an additional option for care in patients with multiple distal occlusive disease when a systemic tissue plasminogen activator (tPA), may put patient at high bleeding risk,” Dr. Rali said.

Looking ahead, a prospective, observational multicenter study would be useful to validate the findings from the post hoc analysis of the current study, he noted.

The study was sponsored by the National Heart, Lung, and Blood Institute, Commonwealth of Pennsylvania, and Thrombolex Inc., a medical device company developing interventional catheter-based therapies for the rapid and effective treatment of acute venous thromboembolic disorders. Dr. Bashir is a cofounder and has an equity interest in Thrombolex Inc. Dr. Rali disclosed serving as a consultant for Thrombolex, Inari Medical, Viz AI, and ThinkSono.

TOPLINE:

Individuals with overweight or obesity and knee or hip osteoarthritis (OA) who used antiobesity medications and achieved slow-to-moderate weight loss had a lower risk for all-cause mortality than did those with weight gain or stable weight in a population-based cohort study emulating a randomized controlled trial. Patients who rapidly lost weight had mortality similar to those with weight gain or stable weight.

METHODOLOGY:

• The researchers used the IQVIA Medical Research Database to identify overweight or obese individuals with knee or hip OA; they conducted a hypothetical trial comparing the effects of slow-to-moderate weight loss (defined as 2%-10% of body weight) and rapid weight loss (defined as 5% or more of body weight) within 1 year of starting antiobesity medications.
• The final analysis included patients with a mean age of 60.9 years who met the criteria for treatment adherence to orlistat (n = 3028), sibutramine (n = 2919), or rimonabant (n = 797).
• The primary outcome was all-cause mortality over a 5-year follow-up period; secondary outcomes included hypertension, type 2 diabetes, and venous thromboembolism.

TAKEAWAY:

• All-cause mortality at 5 years was 5.3% with weight gain or stable weight, 4.0% with slow to moderate weight loss, and 5.4% with rapid weight loss.
• Hazard ratios for all-cause mortality were 0.72 (95% CI, 0.56-0.92) for slow to moderate weight loss and 0.99 (95% CI, 0.67-1.44) for the rapid weight loss group.
• Weight loss was associated with the secondary outcomes of reduced hypertension, type 2 diabetes, and venous thromboembolism in a dose-dependent manner.
• A slightly increased risk for cardiovascular disease occurred in the rapid weight loss group, compared with the weight gain or stable group, but this difference was not significant.

IN PRACTICE:

“Our finding that gradual weight loss by antiobesity medications lowers all-cause mortality, if confirmed by future studies, could guide policy-making and improve the well-being of patients with overweight or obesity and knee or hip OA,” the researchers wrote.

SOURCE:

The lead author on the study was Jie Wei, MD, of Central South University, Changsha, China. The study was published online in Arthritis & Rheumatology.

LIMITATIONS:

Study limitations included the inability to control for factors such as exercise, diet, and disease severity; the inability to assess the risk for cause-specific mortality; and the inability to account for the impact of pain reduction and improved function as a result of weight loss.

DISCLOSURES:

The study was supported by the National Key Research and Development Plan, the National Natural Science Foundation of China, the Project Program of National Clinical Research Center for Geriatric Disorders, the Natural Science Foundation of Hunan Province, the Central South University Innovation-Driven Research Programme, and the Science and Technology Innovation Program of Hunan Province. The researchers had no financial conflicts to disclose.

A version of this article appeared on Medscape.com.

TOPLINE:

Individuals with overweight or obesity and knee or hip osteoarthritis (OA) who used antiobesity medications and achieved slow-to-moderate weight loss had a lower risk for all-cause mortality than did those with weight gain or stable weight in a population-based cohort study emulating a randomized controlled trial. Patients who rapidly lost weight had mortality similar to those with weight gain or stable weight.

METHODOLOGY:

• The researchers used the IQVIA Medical Research Database to identify overweight or obese individuals with knee or hip OA; they conducted a hypothetical trial comparing the effects of slow-to-moderate weight loss (defined as 2%-10% of body weight) and rapid weight loss (defined as 5% or more of body weight) within 1 year of starting antiobesity medications.
• The final analysis included patients with a mean age of 60.9 years who met the criteria for treatment adherence to orlistat (n = 3028), sibutramine (n = 2919), or rimonabant (n = 797).
• The primary outcome was all-cause mortality over a 5-year follow-up period; secondary outcomes included hypertension, type 2 diabetes, and venous thromboembolism.

TAKEAWAY:

• All-cause mortality at 5 years was 5.3% with weight gain or stable weight, 4.0% with slow to moderate weight loss, and 5.4% with rapid weight loss.
• Hazard ratios for all-cause mortality were 0.72 (95% CI, 0.56-0.92) for slow to moderate weight loss and 0.99 (95% CI, 0.67-1.44) for the rapid weight loss group.
• Weight loss was associated with the secondary outcomes of reduced hypertension, type 2 diabetes, and venous thromboembolism in a dose-dependent manner.
• A slightly increased risk for cardiovascular disease occurred in the rapid weight loss group, compared with the weight gain or stable group, but this difference was not significant.

IN PRACTICE:

“Our finding that gradual weight loss by antiobesity medications lowers all-cause mortality, if confirmed by future studies, could guide policy-making and improve the well-being of patients with overweight or obesity and knee or hip OA,” the researchers wrote.

SOURCE:

The lead author on the study was Jie Wei, MD, of Central South University, Changsha, China. The study was published online in Arthritis & Rheumatology.

LIMITATIONS:

Study limitations included the inability to control for factors such as exercise, diet, and disease severity; the inability to assess the risk for cause-specific mortality; and the inability to account for the impact of pain reduction and improved function as a result of weight loss.

DISCLOSURES:

The study was supported by the National Key Research and Development Plan, the National Natural Science Foundation of China, the Project Program of National Clinical Research Center for Geriatric Disorders, the Natural Science Foundation of Hunan Province, the Central South University Innovation-Driven Research Programme, and the Science and Technology Innovation Program of Hunan Province. The researchers had no financial conflicts to disclose.

A version of this article appeared on Medscape.com.

TOPLINE:

Individuals with overweight or obesity and knee or hip osteoarthritis (OA) who used antiobesity medications and achieved slow-to-moderate weight loss had a lower risk for all-cause mortality than did those with weight gain or stable weight in a population-based cohort study emulating a randomized controlled trial. Patients who rapidly lost weight had mortality similar to those with weight gain or stable weight.

METHODOLOGY:

• The researchers used the IQVIA Medical Research Database to identify overweight or obese individuals with knee or hip OA; they conducted a hypothetical trial comparing the effects of slow-to-moderate weight loss (defined as 2%-10% of body weight) and rapid weight loss (defined as 5% or more of body weight) within 1 year of starting antiobesity medications.
• The final analysis included patients with a mean age of 60.9 years who met the criteria for treatment adherence to orlistat (n = 3028), sibutramine (n = 2919), or rimonabant (n = 797).
• The primary outcome was all-cause mortality over a 5-year follow-up period; secondary outcomes included hypertension, type 2 diabetes, and venous thromboembolism.

TAKEAWAY:

• All-cause mortality at 5 years was 5.3% with weight gain or stable weight, 4.0% with slow to moderate weight loss, and 5.4% with rapid weight loss.
• Hazard ratios for all-cause mortality were 0.72 (95% CI, 0.56-0.92) for slow to moderate weight loss and 0.99 (95% CI, 0.67-1.44) for the rapid weight loss group.
• Weight loss was associated with the secondary outcomes of reduced hypertension, type 2 diabetes, and venous thromboembolism in a dose-dependent manner.
• A slightly increased risk for cardiovascular disease occurred in the rapid weight loss group, compared with the weight gain or stable group, but this difference was not significant.

IN PRACTICE:

“Our finding that gradual weight loss by antiobesity medications lowers all-cause mortality, if confirmed by future studies, could guide policy-making and improve the well-being of patients with overweight or obesity and knee or hip OA,” the researchers wrote.

SOURCE:

The lead author on the study was Jie Wei, MD, of Central South University, Changsha, China. The study was published online in Arthritis & Rheumatology.

LIMITATIONS:

Study limitations included the inability to control for factors such as exercise, diet, and disease severity; the inability to assess the risk for cause-specific mortality; and the inability to account for the impact of pain reduction and improved function as a result of weight loss.

DISCLOSURES:

The study was supported by the National Key Research and Development Plan, the National Natural Science Foundation of China, the Project Program of National Clinical Research Center for Geriatric Disorders, the Natural Science Foundation of Hunan Province, the Central South University Innovation-Driven Research Programme, and the Science and Technology Innovation Program of Hunan Province. The researchers had no financial conflicts to disclose.

A version of this article appeared on Medscape.com.

Individuals with severe acne were considered less attractive, less worthy of friendship, and less likely to be hired for a job, compared with those who did not have acne, based on survey responses from more than 1300 individuals.

JAMA Network, 2023 American Medical Association

Self-stigma among people with acne has been examined in previous studies; however, “little is known about the prevalence and magnitude of stigmatizing attitudes of the general public toward individuals with acne,” wrote Ali Shields of Drexel University, Philadelphia, Pennsylvania, and her coauthors.

In the study, recently published in JAMA Dermatology, they reviewed survey data from 1357 adults aged 18 years and older who were identified through an online national research registry (ResearchMatch). The mean age of the participants was 42.4 years range). 67.7% were female.

Participants were randomly shown 1 of 12 standardized portraits of individuals that varied in skin tone, sex, and acne severity. They responded to questions about stigmatizing attitudes with respect to the portrait, including stereotype endorsement and desire for social distance.

With regard to social distance, survey participants were significantly less comfortable being friends with people with severe acne, compared with those who did not have acne (adjusted coefficient [aC], -0.28, P = .003). Compared with people without acne, participants also reported significantly less comfort in hiring someone with severe acne (aC, -0.33; P < .001), having physical contact (aC, -0.26; P = .006), dating (aC, -0.44; P = .004), and posting photos with that person on social media (aC, -0.50; P < .001).

With regard to common acne stereotypes, survey participants also rated individuals with severe acne as significantly more likely than those without acne to have poor hygiene and to be unattractive, unintelligent, unlikeable, immature, and untrustworthy (aCs, -1.04, -0.89, -0.42, -0.36, -0.52, and -0.40, respectively; P < .001 for all).

In a linear regression analysis, the researchers found no evidence of association modification by sex of the portraits presented, but found evidence that “the effect size of association of acne with stereotype endorsement was greater for individuals with dark skin.”

The findings were limited by several factors including the potential differences in degree of severity between images after the addition of acne because the baseline images were not exact controls for each other: Therefore comparisons between image sets based on skin tone or sex should be interpreted cautiously, the researchers noted. Other limitations included the homogeneous population of survey respondents and the inability to account for all aspects of stigma, they said.

However, the results illustrate the persistent stigma associated with acne and “highlight the need to identify approaches to reduce stigmatizing attitudes in the community and for adequate access to care, which might prevent negative downstream effects related to these stigmatizing attitudes,” the authors concluded.

The study was supported by a grant from the National Institute of Arthritis and Musculoskeletal Diseases to corresponding author John S. Barbieri, MD. Coauthor Arash Mostaghimi, MD, disclosed personal fees from hims & hers, AbbVie, Sun Pharmaceutical Industries, Pfizer, Digital Diagnostics, Lilly, Equillium, ASLAN Pharmaceuticals, Boehringer Ingelheim, Fig.1 Beauty, Acom Healthcare, and Olaplex outside the current study. Dr. Barbieri disclosed personal fees from Dexcel Pharma for consulting outside the current study.

Individuals with severe acne were considered less attractive, less worthy of friendship, and less likely to be hired for a job, compared with those who did not have acne, based on survey responses from more than 1300 individuals.

JAMA Network, 2023 American Medical Association

Self-stigma among people with acne has been examined in previous studies; however, “little is known about the prevalence and magnitude of stigmatizing attitudes of the general public toward individuals with acne,” wrote Ali Shields of Drexel University, Philadelphia, Pennsylvania, and her coauthors.

In the study, recently published in JAMA Dermatology, they reviewed survey data from 1357 adults aged 18 years and older who were identified through an online national research registry (ResearchMatch). The mean age of the participants was 42.4 years range). 67.7% were female.

Participants were randomly shown 1 of 12 standardized portraits of individuals that varied in skin tone, sex, and acne severity. They responded to questions about stigmatizing attitudes with respect to the portrait, including stereotype endorsement and desire for social distance.

With regard to social distance, survey participants were significantly less comfortable being friends with people with severe acne, compared with those who did not have acne (adjusted coefficient [aC], -0.28, P = .003). Compared with people without acne, participants also reported significantly less comfort in hiring someone with severe acne (aC, -0.33; P < .001), having physical contact (aC, -0.26; P = .006), dating (aC, -0.44; P = .004), and posting photos with that person on social media (aC, -0.50; P < .001).

With regard to common acne stereotypes, survey participants also rated individuals with severe acne as significantly more likely than those without acne to have poor hygiene and to be unattractive, unintelligent, unlikeable, immature, and untrustworthy (aCs, -1.04, -0.89, -0.42, -0.36, -0.52, and -0.40, respectively; P < .001 for all).

In a linear regression analysis, the researchers found no evidence of association modification by sex of the portraits presented, but found evidence that “the effect size of association of acne with stereotype endorsement was greater for individuals with dark skin.”

The findings were limited by several factors including the potential differences in degree of severity between images after the addition of acne because the baseline images were not exact controls for each other: Therefore comparisons between image sets based on skin tone or sex should be interpreted cautiously, the researchers noted. Other limitations included the homogeneous population of survey respondents and the inability to account for all aspects of stigma, they said.

However, the results illustrate the persistent stigma associated with acne and “highlight the need to identify approaches to reduce stigmatizing attitudes in the community and for adequate access to care, which might prevent negative downstream effects related to these stigmatizing attitudes,” the authors concluded.

The study was supported by a grant from the National Institute of Arthritis and Musculoskeletal Diseases to corresponding author John S. Barbieri, MD. Coauthor Arash Mostaghimi, MD, disclosed personal fees from hims & hers, AbbVie, Sun Pharmaceutical Industries, Pfizer, Digital Diagnostics, Lilly, Equillium, ASLAN Pharmaceuticals, Boehringer Ingelheim, Fig.1 Beauty, Acom Healthcare, and Olaplex outside the current study. Dr. Barbieri disclosed personal fees from Dexcel Pharma for consulting outside the current study.

Individuals with severe acne were considered less attractive, less worthy of friendship, and less likely to be hired for a job, compared with those who did not have acne, based on survey responses from more than 1300 individuals.

JAMA Network, 2023 American Medical Association

Self-stigma among people with acne has been examined in previous studies; however, “little is known about the prevalence and magnitude of stigmatizing attitudes of the general public toward individuals with acne,” wrote Ali Shields of Drexel University, Philadelphia, Pennsylvania, and her coauthors.

In the study, recently published in JAMA Dermatology, they reviewed survey data from 1357 adults aged 18 years and older who were identified through an online national research registry (ResearchMatch). The mean age of the participants was 42.4 years range). 67.7% were female.

Participants were randomly shown 1 of 12 standardized portraits of individuals that varied in skin tone, sex, and acne severity. They responded to questions about stigmatizing attitudes with respect to the portrait, including stereotype endorsement and desire for social distance.

With regard to social distance, survey participants were significantly less comfortable being friends with people with severe acne, compared with those who did not have acne (adjusted coefficient [aC], -0.28, P = .003). Compared with people without acne, participants also reported significantly less comfort in hiring someone with severe acne (aC, -0.33; P < .001), having physical contact (aC, -0.26; P = .006), dating (aC, -0.44; P = .004), and posting photos with that person on social media (aC, -0.50; P < .001).

With regard to common acne stereotypes, survey participants also rated individuals with severe acne as significantly more likely than those without acne to have poor hygiene and to be unattractive, unintelligent, unlikeable, immature, and untrustworthy (aCs, -1.04, -0.89, -0.42, -0.36, -0.52, and -0.40, respectively; P < .001 for all).

In a linear regression analysis, the researchers found no evidence of association modification by sex of the portraits presented, but found evidence that “the effect size of association of acne with stereotype endorsement was greater for individuals with dark skin.”

The findings were limited by several factors including the potential differences in degree of severity between images after the addition of acne because the baseline images were not exact controls for each other: Therefore comparisons between image sets based on skin tone or sex should be interpreted cautiously, the researchers noted. Other limitations included the homogeneous population of survey respondents and the inability to account for all aspects of stigma, they said.

However, the results illustrate the persistent stigma associated with acne and “highlight the need to identify approaches to reduce stigmatizing attitudes in the community and for adequate access to care, which might prevent negative downstream effects related to these stigmatizing attitudes,” the authors concluded.

The study was supported by a grant from the National Institute of Arthritis and Musculoskeletal Diseases to corresponding author John S. Barbieri, MD. Coauthor Arash Mostaghimi, MD, disclosed personal fees from hims & hers, AbbVie, Sun Pharmaceutical Industries, Pfizer, Digital Diagnostics, Lilly, Equillium, ASLAN Pharmaceuticals, Boehringer Ingelheim, Fig.1 Beauty, Acom Healthcare, and Olaplex outside the current study. Dr. Barbieri disclosed personal fees from Dexcel Pharma for consulting outside the current study.

TOPLINE:

Women with fibromyalgia who received low-dose naltrexone showed no significant improvement in pain at 12 weeks, compared with those who received placebo in a randomized trial.

METHODOLOGY:

• The researchers randomly assigned 99 women with fibromyalgia at a single center in Denmark to a daily dose of 6 mg of naltrexone or a placebo for 12 weeks.
• The primary outcome was within-group change in pain intensity from baseline to 12 weeks, measured using an 11-point numeric rating scale (NRS) and the Fibromyalgia Impact Questionnaire-Revised (FIQR); outcomes were measured at 4, 8, and 12 weeks.
• Secondary outcomes included the global impact of FIQR total scores, as well as FIQR scores for tenderness, fatigue, , , anxiety, memory, stiffness, and physical function.

TAKEAWAY:

• The patients ranged in age from 18 to 64 years, with a mean age of 50.6 years, and all but one was White.
• At 12 weeks, the mean change in pain intensity was greater in the naltrexone group compared with the placebo group (−1.3 points vs −0.9 points, respectively), but the difference was not statistically significant.
• Of the secondary outcomes, only memory problems related to fibromyalgia showed significant improvement with naltrexone compared with placebo (−0.93 vs −0.30; P = .004), although the significance was lost after adjusting for multiplicity.
• Adverse events were infrequent and similar between the groups; four of 49 patients in the naltrexone group and three of 50 in the placebo group discontinued their assigned treatments because of side effects, and no safety concerns appeared related to the 6-mg dose.

IN PRACTICE:

“At this time we recommend that off-label treatment of patients who have responded to low-dose naltrexone should not be terminated, but we recommend against initiating low-dose naltrexone for low-dose naltrexone-naive patients with fibromyalgia pending the results of additional adequately powered studies with distinctive inflammatory and autoantibody patient profiles,” Winfried Häuser, MD, of the Center for Pain Medicine and Mental Health, Saarbrücken, Germany, and Mary-Ann Fitzcharles, MD, of McGill University Health Centre, Montreal, Canada, wrote in an accompanying editorial.

SOURCE:

The lead author of the study was Karin Due Bruun, MD, of Odense University Hospital, Denmark. The full study and accompanying editorial were published online in The Lancet Rheumatology.

LIMITATIONS:

The study was only powered to detect a difference of 1.0 NRS points for pain intensity; other limitations include the homogenous population that prevents generalizability to other groups and the relatively short follow-up period.

DISCLOSURES:

The study was supported by the Danish Rheumatism Association, Odense University Hospital, Danielsen’s Foundation, and the Oak Foundation. The researchers had no financial conflicts to disclose.
 

A version of this article appeared on Medscape.com.

TOPLINE:

Women with fibromyalgia who received low-dose naltrexone showed no significant improvement in pain at 12 weeks, compared with those who received placebo in a randomized trial.

METHODOLOGY:

• The researchers randomly assigned 99 women with fibromyalgia at a single center in Denmark to a daily dose of 6 mg of naltrexone or a placebo for 12 weeks.
• The primary outcome was within-group change in pain intensity from baseline to 12 weeks, measured using an 11-point numeric rating scale (NRS) and the Fibromyalgia Impact Questionnaire-Revised (FIQR); outcomes were measured at 4, 8, and 12 weeks.
• Secondary outcomes included the global impact of FIQR total scores, as well as FIQR scores for tenderness, fatigue, , , anxiety, memory, stiffness, and physical function.

TAKEAWAY:

• The patients ranged in age from 18 to 64 years, with a mean age of 50.6 years, and all but one was White.
• At 12 weeks, the mean change in pain intensity was greater in the naltrexone group compared with the placebo group (−1.3 points vs −0.9 points, respectively), but the difference was not statistically significant.
• Of the secondary outcomes, only memory problems related to fibromyalgia showed significant improvement with naltrexone compared with placebo (−0.93 vs −0.30; P = .004), although the significance was lost after adjusting for multiplicity.
• Adverse events were infrequent and similar between the groups; four of 49 patients in the naltrexone group and three of 50 in the placebo group discontinued their assigned treatments because of side effects, and no safety concerns appeared related to the 6-mg dose.

IN PRACTICE:

“At this time we recommend that off-label treatment of patients who have responded to low-dose naltrexone should not be terminated, but we recommend against initiating low-dose naltrexone for low-dose naltrexone-naive patients with fibromyalgia pending the results of additional adequately powered studies with distinctive inflammatory and autoantibody patient profiles,” Winfried Häuser, MD, of the Center for Pain Medicine and Mental Health, Saarbrücken, Germany, and Mary-Ann Fitzcharles, MD, of McGill University Health Centre, Montreal, Canada, wrote in an accompanying editorial.

SOURCE:

The lead author of the study was Karin Due Bruun, MD, of Odense University Hospital, Denmark. The full study and accompanying editorial were published online in The Lancet Rheumatology.

LIMITATIONS:

The study was only powered to detect a difference of 1.0 NRS points for pain intensity; other limitations include the homogenous population that prevents generalizability to other groups and the relatively short follow-up period.

DISCLOSURES:

The study was supported by the Danish Rheumatism Association, Odense University Hospital, Danielsen’s Foundation, and the Oak Foundation. The researchers had no financial conflicts to disclose.
 

A version of this article appeared on Medscape.com.

TOPLINE:

Women with fibromyalgia who received low-dose naltrexone showed no significant improvement in pain at 12 weeks, compared with those who received placebo in a randomized trial.

METHODOLOGY:

• The researchers randomly assigned 99 women with fibromyalgia at a single center in Denmark to a daily dose of 6 mg of naltrexone or a placebo for 12 weeks.
• The primary outcome was within-group change in pain intensity from baseline to 12 weeks, measured using an 11-point numeric rating scale (NRS) and the Fibromyalgia Impact Questionnaire-Revised (FIQR); outcomes were measured at 4, 8, and 12 weeks.
• Secondary outcomes included the global impact of FIQR total scores, as well as FIQR scores for tenderness, fatigue, , , anxiety, memory, stiffness, and physical function.

TAKEAWAY:

• The patients ranged in age from 18 to 64 years, with a mean age of 50.6 years, and all but one was White.
• At 12 weeks, the mean change in pain intensity was greater in the naltrexone group compared with the placebo group (−1.3 points vs −0.9 points, respectively), but the difference was not statistically significant.
• Of the secondary outcomes, only memory problems related to fibromyalgia showed significant improvement with naltrexone compared with placebo (−0.93 vs −0.30; P = .004), although the significance was lost after adjusting for multiplicity.
• Adverse events were infrequent and similar between the groups; four of 49 patients in the naltrexone group and three of 50 in the placebo group discontinued their assigned treatments because of side effects, and no safety concerns appeared related to the 6-mg dose.

IN PRACTICE:

“At this time we recommend that off-label treatment of patients who have responded to low-dose naltrexone should not be terminated, but we recommend against initiating low-dose naltrexone for low-dose naltrexone-naive patients with fibromyalgia pending the results of additional adequately powered studies with distinctive inflammatory and autoantibody patient profiles,” Winfried Häuser, MD, of the Center for Pain Medicine and Mental Health, Saarbrücken, Germany, and Mary-Ann Fitzcharles, MD, of McGill University Health Centre, Montreal, Canada, wrote in an accompanying editorial.

SOURCE:

The lead author of the study was Karin Due Bruun, MD, of Odense University Hospital, Denmark. The full study and accompanying editorial were published online in The Lancet Rheumatology.

LIMITATIONS:

The study was only powered to detect a difference of 1.0 NRS points for pain intensity; other limitations include the homogenous population that prevents generalizability to other groups and the relatively short follow-up period.

DISCLOSURES:

The study was supported by the Danish Rheumatism Association, Odense University Hospital, Danielsen’s Foundation, and the Oak Foundation. The researchers had no financial conflicts to disclose.
 

A version of this article appeared on Medscape.com.

Treatment with bimekizumab significantly improved symptoms in adults with palmoplantar pustulosis (PPP) and palmoplantar plaque psoriasis with pustules, in a case series of 21 individuals.

PPP is a type of pustular psoriasis that remains a treatment challenge, and available treatments for palmoplantar plaque psoriasis with pustules also “remain unsatisfactory,” according to Thierry Passeron, MD, PhD, of the dermatology service at Centre Hospitalier Universitaire de Nice (France), and colleagues. Bimekizumab, an anti-interleukin (IL)-17A and anti-IL-17F antibody therapy, has been used for psoriasis and psoriatic arthritis (PsA), but its effectiveness for PPP has not been studied, they said. In the United States, bimekizumab (Bimzelx), administered subcutaneously, was recently approved for treating moderate to severe plaque psoriasis in adults; in the European Union, it is approved for treating psoriasis, in addition to psoriatic arthritis, axial spondyloarthritis and ankylosing spondylitis.

In the case series published in JAMA Dermatology, Dr. Passeron and coinvestigators identified 11 adults with PPP and 10 with palmoplantar plaque psoriasis with pustules who were treated at one of seven tertiary dermatology centers in France from September 2022 through June 2023. PPP also has been associated with bone and joint inflammation in SAPHO (synovitis, acne, pustulosis, hyperostosis, osteitis) syndrome.

All patients received bimekizumab for at least 3 months. The patients — 19 women and 2 men — ranged in age from 24 to 68 years (mean age, 46 years). The primary outcome was complete clearance, defined as an Investigator Global Assessment (IGA) score of 0.

A total of 17 patients achieved an IGA score of zero in 1-4 months. Over 3-6 months, three patients achieved an IGA score of 1 (almost clear), and one patient achieved an IGA score of 2 (mild).

Three patients with PPP also had acrodermatitis continua of Hallopeau; in these patients, nail involvement improved by 50%-70% after 4-6 months of bimekizumab use. Two patients with SAPHO experienced complete clearance of skin lesions associated with improvement in joint pain.

Four patients developed oral and genital candidiasis during treatment, but all were treated successfully with antifungals. None of the patients discontinued bimekizumab because of adverse events. “All patients are still receiving treatment, and their psoriatic lesions remain controlled,” the authors wrote.

“The rapid and consistent improvement observed in the present case series supports the effectiveness of bimekizumab therapy in managing PPP, palmoplantar plaque psoriasis with pustules, and SAPHO syndrome,” they said in their discussion.

The study findings were limited by several factors including the small sample size and short follow-up period, and by the inclusion of only patients with severe disease; and prospective, placebo-controlled studies are needed to confirm the results, the researchers noted.

However, the results suggest that bimekizumab could be a treatment approach for PPP, palmoplantar plaque psoriasis with pustules, and SAPHO syndrome, and warrant a prospective, randomized, placebo-controlled, randomized clinical trial to confirm the findings, they concluded.

Dr. Passeron disclosed fees from AbbVie, ACM Pharma, Almirall, Boehringer Ingelheim, Bristol Myers Squibb, Calypso, Celgene, Galderma, Genzyme/Sanofi, GlaxoSmithKline, Incyte, Janssen, LEO Pharma, Eli Lilly, Novartis, Roivant Sciences, Sun Pharmaceuticals, and VYNE Therapeutics outside the current study; he is a cofounder of Yukin Therapeutics. Three authors disclosed receiving personal fees from UCB, manufacturer of bimekizumab, outside of the submitted work, another author disclosed receiving personal fees from UCB during the conduct of the study, and another reported receiving grants from UCB and several other companies, outside the submitted work.

The study findings were also presented at a meeting, Les Journées Dermatologiques de Paris 2023, on December 6, in Paris.

Treatment with bimekizumab significantly improved symptoms in adults with palmoplantar pustulosis (PPP) and palmoplantar plaque psoriasis with pustules, in a case series of 21 individuals.

PPP is a type of pustular psoriasis that remains a treatment challenge, and available treatments for palmoplantar plaque psoriasis with pustules also “remain unsatisfactory,” according to Thierry Passeron, MD, PhD, of the dermatology service at Centre Hospitalier Universitaire de Nice (France), and colleagues. Bimekizumab, an anti-interleukin (IL)-17A and anti-IL-17F antibody therapy, has been used for psoriasis and psoriatic arthritis (PsA), but its effectiveness for PPP has not been studied, they said. In the United States, bimekizumab (Bimzelx), administered subcutaneously, was recently approved for treating moderate to severe plaque psoriasis in adults; in the European Union, it is approved for treating psoriasis, in addition to psoriatic arthritis, axial spondyloarthritis and ankylosing spondylitis.

In the case series published in JAMA Dermatology, Dr. Passeron and coinvestigators identified 11 adults with PPP and 10 with palmoplantar plaque psoriasis with pustules who were treated at one of seven tertiary dermatology centers in France from September 2022 through June 2023. PPP also has been associated with bone and joint inflammation in SAPHO (synovitis, acne, pustulosis, hyperostosis, osteitis) syndrome.

All patients received bimekizumab for at least 3 months. The patients — 19 women and 2 men — ranged in age from 24 to 68 years (mean age, 46 years). The primary outcome was complete clearance, defined as an Investigator Global Assessment (IGA) score of 0.

A total of 17 patients achieved an IGA score of zero in 1-4 months. Over 3-6 months, three patients achieved an IGA score of 1 (almost clear), and one patient achieved an IGA score of 2 (mild).

Three patients with PPP also had acrodermatitis continua of Hallopeau; in these patients, nail involvement improved by 50%-70% after 4-6 months of bimekizumab use. Two patients with SAPHO experienced complete clearance of skin lesions associated with improvement in joint pain.

Four patients developed oral and genital candidiasis during treatment, but all were treated successfully with antifungals. None of the patients discontinued bimekizumab because of adverse events. “All patients are still receiving treatment, and their psoriatic lesions remain controlled,” the authors wrote.

“The rapid and consistent improvement observed in the present case series supports the effectiveness of bimekizumab therapy in managing PPP, palmoplantar plaque psoriasis with pustules, and SAPHO syndrome,” they said in their discussion.

The study findings were limited by several factors including the small sample size and short follow-up period, and by the inclusion of only patients with severe disease; and prospective, placebo-controlled studies are needed to confirm the results, the researchers noted.

However, the results suggest that bimekizumab could be a treatment approach for PPP, palmoplantar plaque psoriasis with pustules, and SAPHO syndrome, and warrant a prospective, randomized, placebo-controlled, randomized clinical trial to confirm the findings, they concluded.

Dr. Passeron disclosed fees from AbbVie, ACM Pharma, Almirall, Boehringer Ingelheim, Bristol Myers Squibb, Calypso, Celgene, Galderma, Genzyme/Sanofi, GlaxoSmithKline, Incyte, Janssen, LEO Pharma, Eli Lilly, Novartis, Roivant Sciences, Sun Pharmaceuticals, and VYNE Therapeutics outside the current study; he is a cofounder of Yukin Therapeutics. Three authors disclosed receiving personal fees from UCB, manufacturer of bimekizumab, outside of the submitted work, another author disclosed receiving personal fees from UCB during the conduct of the study, and another reported receiving grants from UCB and several other companies, outside the submitted work.

The study findings were also presented at a meeting, Les Journées Dermatologiques de Paris 2023, on December 6, in Paris.

Treatment with bimekizumab significantly improved symptoms in adults with palmoplantar pustulosis (PPP) and palmoplantar plaque psoriasis with pustules, in a case series of 21 individuals.

PPP is a type of pustular psoriasis that remains a treatment challenge, and available treatments for palmoplantar plaque psoriasis with pustules also “remain unsatisfactory,” according to Thierry Passeron, MD, PhD, of the dermatology service at Centre Hospitalier Universitaire de Nice (France), and colleagues. Bimekizumab, an anti-interleukin (IL)-17A and anti-IL-17F antibody therapy, has been used for psoriasis and psoriatic arthritis (PsA), but its effectiveness for PPP has not been studied, they said. In the United States, bimekizumab (Bimzelx), administered subcutaneously, was recently approved for treating moderate to severe plaque psoriasis in adults; in the European Union, it is approved for treating psoriasis, in addition to psoriatic arthritis, axial spondyloarthritis and ankylosing spondylitis.

In the case series published in JAMA Dermatology, Dr. Passeron and coinvestigators identified 11 adults with PPP and 10 with palmoplantar plaque psoriasis with pustules who were treated at one of seven tertiary dermatology centers in France from September 2022 through June 2023. PPP also has been associated with bone and joint inflammation in SAPHO (synovitis, acne, pustulosis, hyperostosis, osteitis) syndrome.

All patients received bimekizumab for at least 3 months. The patients — 19 women and 2 men — ranged in age from 24 to 68 years (mean age, 46 years). The primary outcome was complete clearance, defined as an Investigator Global Assessment (IGA) score of 0.

A total of 17 patients achieved an IGA score of zero in 1-4 months. Over 3-6 months, three patients achieved an IGA score of 1 (almost clear), and one patient achieved an IGA score of 2 (mild).

Three patients with PPP also had acrodermatitis continua of Hallopeau; in these patients, nail involvement improved by 50%-70% after 4-6 months of bimekizumab use. Two patients with SAPHO experienced complete clearance of skin lesions associated with improvement in joint pain.

Four patients developed oral and genital candidiasis during treatment, but all were treated successfully with antifungals. None of the patients discontinued bimekizumab because of adverse events. “All patients are still receiving treatment, and their psoriatic lesions remain controlled,” the authors wrote.

“The rapid and consistent improvement observed in the present case series supports the effectiveness of bimekizumab therapy in managing PPP, palmoplantar plaque psoriasis with pustules, and SAPHO syndrome,” they said in their discussion.

The study findings were limited by several factors including the small sample size and short follow-up period, and by the inclusion of only patients with severe disease; and prospective, placebo-controlled studies are needed to confirm the results, the researchers noted.

However, the results suggest that bimekizumab could be a treatment approach for PPP, palmoplantar plaque psoriasis with pustules, and SAPHO syndrome, and warrant a prospective, randomized, placebo-controlled, randomized clinical trial to confirm the findings, they concluded.

Dr. Passeron disclosed fees from AbbVie, ACM Pharma, Almirall, Boehringer Ingelheim, Bristol Myers Squibb, Calypso, Celgene, Galderma, Genzyme/Sanofi, GlaxoSmithKline, Incyte, Janssen, LEO Pharma, Eli Lilly, Novartis, Roivant Sciences, Sun Pharmaceuticals, and VYNE Therapeutics outside the current study; he is a cofounder of Yukin Therapeutics. Three authors disclosed receiving personal fees from UCB, manufacturer of bimekizumab, outside of the submitted work, another author disclosed receiving personal fees from UCB during the conduct of the study, and another reported receiving grants from UCB and several other companies, outside the submitted work.

The study findings were also presented at a meeting, Les Journées Dermatologiques de Paris 2023, on December 6, in Paris.

Once-daily monotherapy with elagolix significantly reduced heavy menstrual bleeding in women with uterine leiomyomas compared to a placebo, based on data from 82 individuals.

Uterine leiomyomas are common in premenopausal women, and 60% experience heavy menstrual bleeding, but nonsurgical options as an alternative to hysterectomy are limited, wrote Eric Brown, MD, of Gyn-Care, Atlanta, Georgia, and colleagues.

Elagolix sodium, an oral, short-acting nonpeptide, gonadotropin-releasing hormone antagonist, has been approved by the Food and Drug Administration at a dose of 300 mg twice daily with add-back therapy for up to 24 months of use. However, this treatment protocol is contraindicated or not preferable for some patients, the researchers said.

In a study published in Obstetrics & Gynecology , the researchers randomized 54 women to 150 mg of oral elagolix once daily, and 28 to a placebo for 6 months to investigate the safety and efficacy of the lower dose. The study population included women aged 18-51 years with a history of heavy menstrual bleeding association with uterine leiomyomas. Approximately two-thirds (65.9%) were Black.

The primary endpoint was the proportion of patients who met the criteria of menstrual blood loss volume less than 80 mL during the final month of treatment and menstrual blood loss volume reduction of 50% or more from baseline to the final month of treatment.

After 6 months, nearly half (49.4%) of the elagolix group met the study endpoint compared with 23.3% of the placebo group (P = .035).

Elagolix patients showed significantly greater reductions in both mean and median menstrual blood loss volumes compared with the placebo patients over the study period, and significant differences between the groups in the mean reduction of menstrual blood loss were evident after 1 month of treatment (P < .05 for months 1, 2, 3, and 5).

Results were similar in a further sensitivity analysis in which patients with incomplete final month data were considered nonresponders; 44.4% of elagolix patients and 21.4% of patients met the primary endpoint.

Overall, 51.9% of elagolix patients and 39.3% of placebo patients reported adverse events; the most common were headache and hot flush. Three patients (5.6%) in the elagolix group discontinued the drug because of adverse events. No serious or severe adverse events were reported in the elagolix group; both cases of reported serious adverse events (COVID-19 and an enlarged uvula) occurred in placebo patients.

Patient-reported outcomes were significantly greater in the elagolix patients, based on symptom severity score, 5 of 6 Uterine Fibroid Symptom and Quality of Life (UFS-QOL) health-related quality of life subscales, and the HRQOL total score at the end of the study.

The findings were limited by several factors including the small study population and lenient eligibility criteria that may have led to a higher placebo response rate, and the study did not monitor bone mineral density, the researchers noted.

However, the results suggest that elagolix at a 150-mg dose was well tolerated, with a safety profile similar to that seen in women who took the drug for endometriosis pain, and may be an option for women with contraindications to other therapy or for those who prefer once-daily dosing, they concluded.

The study was funded by AbbVie. Lead author Dr. Brown had no additional financial conflicts to disclose, but several coauthors disclosed relationships with AbbVie and other companies.

Once-daily monotherapy with elagolix significantly reduced heavy menstrual bleeding in women with uterine leiomyomas compared to a placebo, based on data from 82 individuals.

Uterine leiomyomas are common in premenopausal women, and 60% experience heavy menstrual bleeding, but nonsurgical options as an alternative to hysterectomy are limited, wrote Eric Brown, MD, of Gyn-Care, Atlanta, Georgia, and colleagues.

Elagolix sodium, an oral, short-acting nonpeptide, gonadotropin-releasing hormone antagonist, has been approved by the Food and Drug Administration at a dose of 300 mg twice daily with add-back therapy for up to 24 months of use. However, this treatment protocol is contraindicated or not preferable for some patients, the researchers said.

In a study published in Obstetrics & Gynecology , the researchers randomized 54 women to 150 mg of oral elagolix once daily, and 28 to a placebo for 6 months to investigate the safety and efficacy of the lower dose. The study population included women aged 18-51 years with a history of heavy menstrual bleeding association with uterine leiomyomas. Approximately two-thirds (65.9%) were Black.

The primary endpoint was the proportion of patients who met the criteria of menstrual blood loss volume less than 80 mL during the final month of treatment and menstrual blood loss volume reduction of 50% or more from baseline to the final month of treatment.

After 6 months, nearly half (49.4%) of the elagolix group met the study endpoint compared with 23.3% of the placebo group (P = .035).

Elagolix patients showed significantly greater reductions in both mean and median menstrual blood loss volumes compared with the placebo patients over the study period, and significant differences between the groups in the mean reduction of menstrual blood loss were evident after 1 month of treatment (P < .05 for months 1, 2, 3, and 5).

Results were similar in a further sensitivity analysis in which patients with incomplete final month data were considered nonresponders; 44.4% of elagolix patients and 21.4% of patients met the primary endpoint.

Overall, 51.9% of elagolix patients and 39.3% of placebo patients reported adverse events; the most common were headache and hot flush. Three patients (5.6%) in the elagolix group discontinued the drug because of adverse events. No serious or severe adverse events were reported in the elagolix group; both cases of reported serious adverse events (COVID-19 and an enlarged uvula) occurred in placebo patients.

Patient-reported outcomes were significantly greater in the elagolix patients, based on symptom severity score, 5 of 6 Uterine Fibroid Symptom and Quality of Life (UFS-QOL) health-related quality of life subscales, and the HRQOL total score at the end of the study.

The findings were limited by several factors including the small study population and lenient eligibility criteria that may have led to a higher placebo response rate, and the study did not monitor bone mineral density, the researchers noted.

However, the results suggest that elagolix at a 150-mg dose was well tolerated, with a safety profile similar to that seen in women who took the drug for endometriosis pain, and may be an option for women with contraindications to other therapy or for those who prefer once-daily dosing, they concluded.

The study was funded by AbbVie. Lead author Dr. Brown had no additional financial conflicts to disclose, but several coauthors disclosed relationships with AbbVie and other companies.

Once-daily monotherapy with elagolix significantly reduced heavy menstrual bleeding in women with uterine leiomyomas compared to a placebo, based on data from 82 individuals.

Uterine leiomyomas are common in premenopausal women, and 60% experience heavy menstrual bleeding, but nonsurgical options as an alternative to hysterectomy are limited, wrote Eric Brown, MD, of Gyn-Care, Atlanta, Georgia, and colleagues.

Elagolix sodium, an oral, short-acting nonpeptide, gonadotropin-releasing hormone antagonist, has been approved by the Food and Drug Administration at a dose of 300 mg twice daily with add-back therapy for up to 24 months of use. However, this treatment protocol is contraindicated or not preferable for some patients, the researchers said.

In a study published in Obstetrics & Gynecology , the researchers randomized 54 women to 150 mg of oral elagolix once daily, and 28 to a placebo for 6 months to investigate the safety and efficacy of the lower dose. The study population included women aged 18-51 years with a history of heavy menstrual bleeding association with uterine leiomyomas. Approximately two-thirds (65.9%) were Black.

The primary endpoint was the proportion of patients who met the criteria of menstrual blood loss volume less than 80 mL during the final month of treatment and menstrual blood loss volume reduction of 50% or more from baseline to the final month of treatment.

After 6 months, nearly half (49.4%) of the elagolix group met the study endpoint compared with 23.3% of the placebo group (P = .035).

Elagolix patients showed significantly greater reductions in both mean and median menstrual blood loss volumes compared with the placebo patients over the study period, and significant differences between the groups in the mean reduction of menstrual blood loss were evident after 1 month of treatment (P < .05 for months 1, 2, 3, and 5).

Results were similar in a further sensitivity analysis in which patients with incomplete final month data were considered nonresponders; 44.4% of elagolix patients and 21.4% of patients met the primary endpoint.

Overall, 51.9% of elagolix patients and 39.3% of placebo patients reported adverse events; the most common were headache and hot flush. Three patients (5.6%) in the elagolix group discontinued the drug because of adverse events. No serious or severe adverse events were reported in the elagolix group; both cases of reported serious adverse events (COVID-19 and an enlarged uvula) occurred in placebo patients.

Patient-reported outcomes were significantly greater in the elagolix patients, based on symptom severity score, 5 of 6 Uterine Fibroid Symptom and Quality of Life (UFS-QOL) health-related quality of life subscales, and the HRQOL total score at the end of the study.

The findings were limited by several factors including the small study population and lenient eligibility criteria that may have led to a higher placebo response rate, and the study did not monitor bone mineral density, the researchers noted.

However, the results suggest that elagolix at a 150-mg dose was well tolerated, with a safety profile similar to that seen in women who took the drug for endometriosis pain, and may be an option for women with contraindications to other therapy or for those who prefer once-daily dosing, they concluded.

The study was funded by AbbVie. Lead author Dr. Brown had no additional financial conflicts to disclose, but several coauthors disclosed relationships with AbbVie and other companies.