FDA approves first therapy for warm autoimmune hemolytic anemia
The phase 2/3 ENERGY trial evaluated durable hemoglobin response with nipocalimab vs placebo in adults with warm autoimmune hemolytic anemia.
By
Kathryn Wighton
August 25, 2026
Clinical Scorecard: FDA approves first therapy for warm autoimmune hemolytic anemia
At a Glance
Category Detail
Condition Warm Autoimmune Hemolytic Anemia (wAIHA)
Key Mechanisms Nipocalimab binds to and blocks the neonatal Fc receptor, reducing circulating immunoglobulin G antibodies while preserving B-cell function.
Target Population Adults and pediatric patients aged 12 years and older with wAIHA previously treated with corticosteroids.
Care Setting Clinical treatment for autoimmune hemolytic anemia.
Key Highlights
Nipocalimab is the first therapy approved specifically for wAIHA. Approval based on the phase 2/3 ENERGY trial involving 115 adults. Participants receiving nipocalimab had a higher durable hemoglobin response compared to placebo. Common adverse reactions include peripheral edema, diarrhea, and fever. The approved dosing regimen is 30 mg/kg intravenously every 4 weeks.
Guideline-Based Recommendations
Diagnosis
Diagnosis of wAIHA involves identifying autoantibodies that destroy red blood cells.
Management
Nipocalimab is indicated for patients with wAIHA who have been treated with corticosteroids.
Monitoring & Follow-up
Monitor hemoglobin levels and potential adverse reactions during treatment.
Risks
Increased risk of venous thrombotic events, acute renal failure, and infections.
Patient & Prescribing Data
Adults and pediatric patients aged 12 years and older with wAIHA.
Nipocalimab shows efficacy in increasing hemoglobin levels and reducing fatigue.
Clinical Best Practices
Consider nipocalimab for patients with wAIHA who have not responded to corticosteroids. Regularly assess for adverse reactions during treatment.
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