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Enhancer of zeste homolog 2 inhibitor SHR2554 in relapsed or refractory peripheral T-cell lymphoma: data from the first-in-human phase 1 study

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机构: [1]Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing, China [2]Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China [3]Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China [4]Lymphatic Comprehensive Internal Medicine Ward, Henan Cancer Hospital, Zhengzhou, China [5]Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China [6]Department of Hematopathology, West China Hospital Sichuan University, Chengdu, China [7]Department of Lymphoma, The Fifth Medical Center of the People’s Liberation Army General Hospital, Beijing, China [8]Department of Lymphoma & Hematology (Children’s Tumor Center), Hunan Cancer [9]Early Clinical Trial Center, Hunan Cancer Hospital & The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China [10]Department of Hematology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China [11]Department of Hematopathology, Zhongnan Hospital of Wuhan University, Wuhan, China [12]Clinical Trial Center, Zhongnan Hospital of Wuhan University, Wuhan, China [13]Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China [14]Department of Lymphoma and Head and Neck Oncology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China [15]Good Clinical Practice Ward, Blood Diseases Hospital, Chinese Academy of Medical Sciences, Tianjin, China [16]Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China [17]Department of Lymphology and Hematology, Cancer Hospital Affiliated to Shandong First Medical University, Jinan, China [18]Jiangsu Hengrui Pharmaceuticals Co., Ltd., Shanghai, China
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关键词: peripheral T-cell lymphoma EZH2 SHR2554

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Patients with peripheral T-cell lymphomas (PTCLs) in the relapsed or refractory (r/r) setting have only a limited number of therapies available, and the prognosis is extremely poor. SHR2554 is an oral inhibitor against EZH2, a rational therapeutic target for lymphomas.This was a multicenter, 2-part, phase 1 study of SHR2554 in r/r mature lymphoid neoplasms. In part I, 350 mg twice daily was established as the recommended phase 2 dose (RP2D) based on the findings during dose-escalation and expansion; subsequently, selected lymphoma subtypes were recruited in clinical expansion cohorts to receive SHR2554 at RP2D. Here, we provide an in-depth assessment of SHR2554 at RP2D in subpopulation with r/r PTCLs.Totally, 28 patients were included for analysis (17 angioimmunoblastic T-cell lymphoma and 11 not otherwise specified). 18 (64%) patients had received ≥2 lines of previous anti-cancer therapies. The objective response rate was 61% (95% CI 41-78). Responses were still ongoing in 59% (10/17) of the responders; estimated median duration of response was 12.3 months (95% CI 7.4-not reached). Median progression-free survival was 11.1 months (95% CI 5.3-22.0), and 12-month overall survival rate was 92% (95% CI 72-98). The most common grade 3 or 4 treatment-related adverse events were decreased platelet count (nine [32%]) as well as decreased white blood cell count, decreased neutrophil count, and anemia (four [14%] for each). No treatment-related deaths were reported.This extended follow-up analysis further supports SHR2554 as a therapeutic opportunity for patients with r/r PTCLs.

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大类 | 1 区 医学
小类 | 1 区 肿瘤学
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大类 | 1 区 医学
小类 | 1 区 肿瘤学
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Q1 ONCOLOGY
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Q1 ONCOLOGY

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第一作者机构: [1]Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing, China
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