Clinical study on recombinant human thrombopoietin in the treatment of refractory idiopathic thrombocytopenic purpura

Abstract

Objective To observe the efficacy and toxicity of recombinant human thrombopoietin (rhTPO)in the treatment of chronic refractory idiopathic thrombocytopenic purpura(ITP).Methods Twenty- four patients with chronic ITP were administered with rhTPO subcutaneously at 300 IU/(kg · d)for 14 days or until the platelet count ＞ 100 × 109/L.Results Out of 24 patients with ITP, 12 cases showed significant response and 5 cases showed good response to the treatment with rhTPO.The peak platelet count after treatment was(129 ± 97)× 109/L, significantly higher than the mean platelet count [(10 ±5)× 109/L]before treatment(t = 5.822, P ＜0.01).The agent was well tolerated in most patients.Conclusions rhTPO exerts satisfactory efficacy in the treatment of chronic ITP with mild side effects. Key words: Thrombopoietin ; Idiopathic thrombocytopenic ; Purpura ; Therapy ;