Recombinant human thrombopoietin in combination with cyclosporin A as a novel therapy in corticosteroid-resistant primary immune thrombocytopenia
Recombinant human thrombopoietin in combination with cyclosporin A as a novel therapy in corticosteroid-resistant primary immune thrombocytopenia
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DOI:
10.3760/cma.j.issn.0366-6999.20131116
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发表时间:
2013-11-05
影响因子:
6.1
通讯作者:
Zhao Chun-ting
中科院分区:
文献类型:
--
作者:
Cui Zhong-guang;Liu Xin-guang;Zhao Chun-ting
Background The management of patients with refractory immune thrombocytopenia (ITP) is challenging, as there is no standard treatment option. The aim of this study was to investigate the efficacy of recombinant human thrombopoietin (rhTPO) in combination with cyclosporin A (CsA) for the management of patients with corticosteroid-resistant primary ITP.Methods Thirty-six patients with corticosteroid-resistant ITP were randomly divided into an observation group and control group. In the observation group, 19 patients received subcutaneous injection of rhTPO at a dose of 1 mu g/kg (300 U/kg) once daily up to day 14. Simultaneously they also received oral CsA at a dose of 1.5-2.0 mg/kg twice daily for three months. In the control group, rhTPO alone was administered subcutaneously at 1 mu g/kg once daily in the other 17 ITP patients for 14 consecutive days and then the treatment was withdrawn.Results There was no significant difference in the response rate at the end of the first week after treatment initiation between the observation group and the control group (63.2% vs. 58.8%, P >0.05), neither was there at the end of the second week (89.5% vs. 94.1%, P >0.05). However, the relapse rate in the observation group was significantly lower than that in control group at the end of the first (17.7% vs. 50.0%, P