Long-lasting effect of cyclosporin-a on anemia associated with idiopathic myelofibrosis

Some reports suggest that immunologic mechanisms may play a role in the pathogenesis of anemia in idiopathic myelofibrosis (IMF). Herein we report the case of a transfusion dependent IMF patient with psoriasis in whom cyclosporin-A (CyA) treatment for skin lesions (200 mg/day) was associated with long-lasting correction of anemia. After 2 months of CyA therapy the patient's Hb level increased and he became transfusion free in 4 months. After 12 months immunosuppressive therapy was discontinued due to renal toxicity, yet the Hb level remained stable for an additional 12 months. The patient is currently being administered CyA at a reduced dosage because of mild renal impairment along with transfusional support consisting of a median of 2 red cell units/month. Altogether the patient received no transfusional support for 36 months. This case, as well as other reports, suggests that the issue of immunosuppressive treatment in IMF anemia deserves further investigation.