Recombinant Human Thrombopoietin (rhTPO) and High-Dose Dexamethasone (HD-DXM) Versus High-Dose Dexamethasone Monotherapy As Frontline Treatment in Newly Diagnosed Adult Immune Thrombocytopenia (ITP): a Prospective, Multicentre, Randomised, Controlled Trial

医学 血小板生成素 地塞米松 内科学 临床终点 罗米普洛斯蒂姆 胃肠病学 随机对照试验 免疫学 外科 造血 干细胞 遗传学 生物
作者
Miaomiao Wang,Ping Qin,Hai Zhou,Fang Zhou,Hongguo Zhao,Xin Wang,Ruirong Xu,Daqi Li,Lei Wang,Yuhong Zhou,Ying Feng,Mei Zhang,Lan‐Yan Yang,Xiaomin Wang,Qingshu Zeng,Haiyan Zhang,Zhaogang Sun,Jingxia Wang,Guoqiang Liu,Xinhong Guo,Zhencheng Wang,Wenzheng Yu,Xiaoxia Chu,Chenglu Yuan,Kehong Bi,Yili Wang,Xuehong Ran,Jun Peng,Ming Hou
出处
期刊:Blood [American Society of Hematology]
卷期号:130: 13-13 被引量:4
标识
DOI:10.1182/blood.v130.suppl_1.13.13
摘要

Abstract Introduction: Immune thrombocytopenia (ITP) is an acquired thrombocytopenia and caused by immune-mediated platelet destruction and impaired platelet production. Corticosteroids are recommended as the standard first-line treatment. As the immunosuppressive therapy,HD-DXM could decrease platelet destruction by regulating T cell immune abnormalities. Thrombopoietin (TPO) is the primary regulator of thrombopoiesis. Several studies have proved that TPO have profound effects on megakaryocyte development and platelet production as well as restore immune tolerance. We suppose the rhTPO and HD-DXM could work synergistically based on these mechanisms. Recently, several pilot studies have examined the efficacy and safety of TPO-RA in treatment-naive adult ITP patients. We present the results of the first prospective,multicenter,randomized,controlled trial on the largest cohort to date comparing the efficacy and safety of HD-DXM plus rhTPO vs HD-DXM as frontline therapy in newly diagnosed adult primary ITP patients. Methods: Between July 2013 and December 2016, 245 newly-diagnosed, treatment-naive ITP patients aged 18-75 years in 25 separate centers in China were enrolled in the trial (NCT01734044). DXM was administered orally at 40 mg daily for 4 consecutive days to both arms. The 4-day course of dexamethasone was repeated on days 11 to 14 in the case of lack of response. Patients in the experimental arm received subcutaneously rhTPO at a daily dose of 300U/kg concomitantly during the first 14 days. Patients with platelet counts higher than 100×109/L or more than 50×109/L increase of the baseline platelet count could discontinue the rhTPO treatments. Use of rescue treatments such as platelet transfusion and hemostatic agents were allowed at the discretion of the investigator if the platelet count Results: 196 patients were randomly to receive HD-DXM with (n=100) or without (n=96) rhTPO. Demographics and baseline characteristics were balanced between the 2 arms. HD-DXM+ rhTPO resulted in a higher incidence of early OR at day 14 compared with HD-DXM monotherapy (89.0% vs 66.7%, P Conclusions: Our findings suggest that the addition of rhTPO to HD-DXM is superior to HD-DXM monotherapy in the treatment of newly diagnosed treatment-naive adult ITP patients. Thus, this combination can be a feasible frontline therapy in adult ITP. Download : Download high-res image (111KB) Download : Download full-size image Disclosures No relevant conflicts of interest to declare.

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