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Daratumumab and Darbepoetin for Refractory Warm Autoimmune Hemolytic Anemia: A Novel Duo for a Tough Case
Background
Warm autoimmune hemolytic anemia (wAIHA) is traditionally treated with immunosuppresimmunosuppression, and management of refractory disease is often a challenge. The anti-CD38 antibody daratumumab is emerging as a promising treatment for refractory wAIHA, as it targets autoantibody-producing plasma cells. Here, we present the first reported case of daratumumab used in conjunction with an erythropoiesisstimulating agent (ESA) to salvage refractory wAIHA in a patient with AIDS and bone marrow suppression.
Case Presentation
A middle aged man with HIV (undetectable viral load on antiretroviral treatment but CD4 persistently < 200, requiring chronic antimicrobial prophylaxis) was diagnosed with classic wAIHA in late 2021. The disease initially responded to corticosteroids, but relapsed repeatedly and eventually required IVIG, rituximab, danazol, and three immunosuppressive agents, none of which induced remission. Hemolysis worsened by fall 2024, with hemoglobin 5-6 g/dL despite high-dose corticosteroids and IVIG. Bone marrow biopsy was unrevealing, and he underwent splenectomy. However, recovery was complicated by cutaneous nocardiosis, iron overload, liver injury, and continued hemolysis. Eventually, reticulocytosis also ceased, and hemoglobin declined to 4-5 g/dL. Due to failure of standard therapies and to minimize further immunosuppression, weekly daratumumab injections were initiated, with weekly darbepoetin injections added to aid in compensatory hematopoiesis. With this combination, hemolysis indices improved, reticulocytosis picked up, and hemoglobin increased to 8-9 g/dL. However, the patient continued to struggle with infections, and he succumbed to drug-resistant bacterial sepsis in spring 2025.
Discussion
The patient had very complicated chronic and acute comorbidities, and some simplification was required in order to provide this summary. However, we hope this case adds to the literature on daratumumab as an effective new agent in refractory wAIHA, and also present a novel duo of therapies for patients who may struggle with bone marrow suppression in addition to autoimmune hemolysis. To our knowledge, this is the first reported case of the combination used in this manner.
Conclusions
Daratumumab is an effective and less immunosuppressive alternative for the treatment of heavily pretreated refractory wAIHA. Its combined use with ESA in patients with inadequate reticulocytosis should be studied further to clarify the efficacy and safety in this setting.
Background
Warm autoimmune hemolytic anemia (wAIHA) is traditionally treated with immunosuppresimmunosuppression, and management of refractory disease is often a challenge. The anti-CD38 antibody daratumumab is emerging as a promising treatment for refractory wAIHA, as it targets autoantibody-producing plasma cells. Here, we present the first reported case of daratumumab used in conjunction with an erythropoiesisstimulating agent (ESA) to salvage refractory wAIHA in a patient with AIDS and bone marrow suppression.
Case Presentation
A middle aged man with HIV (undetectable viral load on antiretroviral treatment but CD4 persistently < 200, requiring chronic antimicrobial prophylaxis) was diagnosed with classic wAIHA in late 2021. The disease initially responded to corticosteroids, but relapsed repeatedly and eventually required IVIG, rituximab, danazol, and three immunosuppressive agents, none of which induced remission. Hemolysis worsened by fall 2024, with hemoglobin 5-6 g/dL despite high-dose corticosteroids and IVIG. Bone marrow biopsy was unrevealing, and he underwent splenectomy. However, recovery was complicated by cutaneous nocardiosis, iron overload, liver injury, and continued hemolysis. Eventually, reticulocytosis also ceased, and hemoglobin declined to 4-5 g/dL. Due to failure of standard therapies and to minimize further immunosuppression, weekly daratumumab injections were initiated, with weekly darbepoetin injections added to aid in compensatory hematopoiesis. With this combination, hemolysis indices improved, reticulocytosis picked up, and hemoglobin increased to 8-9 g/dL. However, the patient continued to struggle with infections, and he succumbed to drug-resistant bacterial sepsis in spring 2025.
Discussion
The patient had very complicated chronic and acute comorbidities, and some simplification was required in order to provide this summary. However, we hope this case adds to the literature on daratumumab as an effective new agent in refractory wAIHA, and also present a novel duo of therapies for patients who may struggle with bone marrow suppression in addition to autoimmune hemolysis. To our knowledge, this is the first reported case of the combination used in this manner.
Conclusions
Daratumumab is an effective and less immunosuppressive alternative for the treatment of heavily pretreated refractory wAIHA. Its combined use with ESA in patients with inadequate reticulocytosis should be studied further to clarify the efficacy and safety in this setting.
Background
Warm autoimmune hemolytic anemia (wAIHA) is traditionally treated with immunosuppresimmunosuppression, and management of refractory disease is often a challenge. The anti-CD38 antibody daratumumab is emerging as a promising treatment for refractory wAIHA, as it targets autoantibody-producing plasma cells. Here, we present the first reported case of daratumumab used in conjunction with an erythropoiesisstimulating agent (ESA) to salvage refractory wAIHA in a patient with AIDS and bone marrow suppression.
Case Presentation
A middle aged man with HIV (undetectable viral load on antiretroviral treatment but CD4 persistently < 200, requiring chronic antimicrobial prophylaxis) was diagnosed with classic wAIHA in late 2021. The disease initially responded to corticosteroids, but relapsed repeatedly and eventually required IVIG, rituximab, danazol, and three immunosuppressive agents, none of which induced remission. Hemolysis worsened by fall 2024, with hemoglobin 5-6 g/dL despite high-dose corticosteroids and IVIG. Bone marrow biopsy was unrevealing, and he underwent splenectomy. However, recovery was complicated by cutaneous nocardiosis, iron overload, liver injury, and continued hemolysis. Eventually, reticulocytosis also ceased, and hemoglobin declined to 4-5 g/dL. Due to failure of standard therapies and to minimize further immunosuppression, weekly daratumumab injections were initiated, with weekly darbepoetin injections added to aid in compensatory hematopoiesis. With this combination, hemolysis indices improved, reticulocytosis picked up, and hemoglobin increased to 8-9 g/dL. However, the patient continued to struggle with infections, and he succumbed to drug-resistant bacterial sepsis in spring 2025.
Discussion
The patient had very complicated chronic and acute comorbidities, and some simplification was required in order to provide this summary. However, we hope this case adds to the literature on daratumumab as an effective new agent in refractory wAIHA, and also present a novel duo of therapies for patients who may struggle with bone marrow suppression in addition to autoimmune hemolysis. To our knowledge, this is the first reported case of the combination used in this manner.
Conclusions
Daratumumab is an effective and less immunosuppressive alternative for the treatment of heavily pretreated refractory wAIHA. Its combined use with ESA in patients with inadequate reticulocytosis should be studied further to clarify the efficacy and safety in this setting.
How to Make Keeping Up With the Drugs as Easy as Keeping Up With the Kardashians: Implementing a Local Oncology Drug Review Committee
Background
From 2000-2022 there were over 200 new drug and over 500 indication approvals specific to oncology. The rate of approvals has increased exponentially, making it difficult to maintain an up-to-date, standardized practice. Nationally, Veterans Affairs (VA) formulary decisions can take time given a lengthy approval process. Locally, the need was identified to incorporate new drugs and data into practice more rapidly. When bringing requests to the facility Pharmacy and Therapeutics (P&T) Committee, it was recognized that the membership consisting of non-oncology practitioners did not allow for meaningful discussion of utilization. In 2017, a dedicated oncology drug review committee (DRC) comprised of oncology practitioners and a facility formulary representative was created as a P&T workgroup. Purpose: Evaluate and describe the utility of forming a local oncology DRC to incorporate new drugs and data into practice.
Methods
DRC minutes from December 2017 to May 2023 were reviewed. Discussion items were categorized into type of review. Date of local review was compared to national formulary criteria for use publication dates, and date of FDA approval for new drugs or publication date for new data, where applicable. Items were excluded if crucial information was missing from minutes. Descriptive statistics were used.
Results
Over 65 months, 38 meetings were held. Thirty total members include: pharmacists, physicians, fellows, and advanced practice providers. Items reviewed included: 36 new drugs (ND), 36 new indications/data (NI), 14 institutional preferences, 10 new dosage form/biosimilars, 4 drug shortages and 2 others. The median time from ND approval to discussion was 3 months (n= 36, IQR 3-6) and NI from publication was 3 months (n=30, IQR 1-8). Nearly all (34/36, 94%) ND were reviewed prior to national review. Local review was a median of 7 months before national, with 11 drugs currently having no published national criteria for use (n=25, IQR 2-12).
Conclusions
DRC formation has enabled faster incorporation of new drugs/indications into practice. It has also created an appropriate forum for in-depth utilization discussions, pharmacoeconomic stewardship, and sharing of formulary and medication related information. VA Health Systems could consider implementing similar committees to review and implement up-to-date oncology practices.
Background
From 2000-2022 there were over 200 new drug and over 500 indication approvals specific to oncology. The rate of approvals has increased exponentially, making it difficult to maintain an up-to-date, standardized practice. Nationally, Veterans Affairs (VA) formulary decisions can take time given a lengthy approval process. Locally, the need was identified to incorporate new drugs and data into practice more rapidly. When bringing requests to the facility Pharmacy and Therapeutics (P&T) Committee, it was recognized that the membership consisting of non-oncology practitioners did not allow for meaningful discussion of utilization. In 2017, a dedicated oncology drug review committee (DRC) comprised of oncology practitioners and a facility formulary representative was created as a P&T workgroup. Purpose: Evaluate and describe the utility of forming a local oncology DRC to incorporate new drugs and data into practice.
Methods
DRC minutes from December 2017 to May 2023 were reviewed. Discussion items were categorized into type of review. Date of local review was compared to national formulary criteria for use publication dates, and date of FDA approval for new drugs or publication date for new data, where applicable. Items were excluded if crucial information was missing from minutes. Descriptive statistics were used.
Results
Over 65 months, 38 meetings were held. Thirty total members include: pharmacists, physicians, fellows, and advanced practice providers. Items reviewed included: 36 new drugs (ND), 36 new indications/data (NI), 14 institutional preferences, 10 new dosage form/biosimilars, 4 drug shortages and 2 others. The median time from ND approval to discussion was 3 months (n= 36, IQR 3-6) and NI from publication was 3 months (n=30, IQR 1-8). Nearly all (34/36, 94%) ND were reviewed prior to national review. Local review was a median of 7 months before national, with 11 drugs currently having no published national criteria for use (n=25, IQR 2-12).
Conclusions
DRC formation has enabled faster incorporation of new drugs/indications into practice. It has also created an appropriate forum for in-depth utilization discussions, pharmacoeconomic stewardship, and sharing of formulary and medication related information. VA Health Systems could consider implementing similar committees to review and implement up-to-date oncology practices.
Background
From 2000-2022 there were over 200 new drug and over 500 indication approvals specific to oncology. The rate of approvals has increased exponentially, making it difficult to maintain an up-to-date, standardized practice. Nationally, Veterans Affairs (VA) formulary decisions can take time given a lengthy approval process. Locally, the need was identified to incorporate new drugs and data into practice more rapidly. When bringing requests to the facility Pharmacy and Therapeutics (P&T) Committee, it was recognized that the membership consisting of non-oncology practitioners did not allow for meaningful discussion of utilization. In 2017, a dedicated oncology drug review committee (DRC) comprised of oncology practitioners and a facility formulary representative was created as a P&T workgroup. Purpose: Evaluate and describe the utility of forming a local oncology DRC to incorporate new drugs and data into practice.
Methods
DRC minutes from December 2017 to May 2023 were reviewed. Discussion items were categorized into type of review. Date of local review was compared to national formulary criteria for use publication dates, and date of FDA approval for new drugs or publication date for new data, where applicable. Items were excluded if crucial information was missing from minutes. Descriptive statistics were used.
Results
Over 65 months, 38 meetings were held. Thirty total members include: pharmacists, physicians, fellows, and advanced practice providers. Items reviewed included: 36 new drugs (ND), 36 new indications/data (NI), 14 institutional preferences, 10 new dosage form/biosimilars, 4 drug shortages and 2 others. The median time from ND approval to discussion was 3 months (n= 36, IQR 3-6) and NI from publication was 3 months (n=30, IQR 1-8). Nearly all (34/36, 94%) ND were reviewed prior to national review. Local review was a median of 7 months before national, with 11 drugs currently having no published national criteria for use (n=25, IQR 2-12).
Conclusions
DRC formation has enabled faster incorporation of new drugs/indications into practice. It has also created an appropriate forum for in-depth utilization discussions, pharmacoeconomic stewardship, and sharing of formulary and medication related information. VA Health Systems could consider implementing similar committees to review and implement up-to-date oncology practices.