Summary
We describe the beneficial effect of recombinant alpha 2b interferon in a woman with an idiopathic and refractory IgM-mediated autoimmune hemolytic anemia due to low-titer, high-thermal-amplitude cold agglutinins. The response was partial but sustained, 2 months after interruption of interferon, with hemoglobin concentrations ranging between 8.5 and 10 g/dl. In the literature, such rarely encountered hemolyzing warm-reacting agglutinins are described as causing severe hemolysis with a frequently fatal clinical outcome.
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Fest, T., de Wazières, B., Lamy, B. et al. Successful response to alpha-interferon 2b in a refractory IgM autoagglutinin-mediated hemolytic anemia. Ann Hematol 69, 147–149 (1994). https://doi.org/10.1007/BF01695696
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DOI: https://doi.org/10.1007/BF01695696