A Prospective, Multicenter, Open-label, Randomized Controlled Trial of SHR2554 Plus Azacitidine in Overlapped Sequential Combination With TBF Conditioning Regimen in Patients With High-risk or Relapsed/Refractory Acute Leukemia and Myelodysplastic Neoplasms
试验速览
- 阶段
- 2 期
- 状态
- 尚未招募
- 发起方
- 入组人数
- 160
- 试验地点
- 1
- 主要终点
- Cumulative incidence of relapse（CIR）
研究概览
简要总结
This study was designed as a prospective, multicenter, open-label, randomized controlled trial. Eligible participants were patients aged 15-60 years with high-risk or relapsed/refractory acute myeloid leukemia (AML), acute lymphoblastic leukemia (ALL), or myelodysplastic neoplasms (MDS), diagnosed based on bone marrow morphology, immunophenotyping, genetic testing, and treatment response assessment. The experimental group received SHR2554 combined with azacitidine as an overlapped sequential combination with the TBF conditioning regimen, whereas the control group received the mBuCy conditioning regimen, both followed by allogeneic hematopoietic stem cell transplantation (allo-HSCT). The primary endpoint was the 2-year cumulative incidence of relapse (CIR) after allo-HSCT. Secondary endpoints included 2-year overall survival (OS), 2-year disease-free survival (DFS), transplant-related mortality (TRM), the incidence of acute and chronic graft-versus-host disease (GVHD), and safety profiles.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 15 Years 至 60 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age 15-60 years, of either sex.
- •Diagnosis of AML or ALL according to the WHO 2022 criteria, with an indication for allogeneic hematopoietic stem cell transplantation: AML with high-risk genetics at diagnosis (risk stratification per ELN 2022) or relapsed/refractory AML (meeting any of the following: refractory-failure to achieve complete remission (CR) after two cycles of induction chemotherapy; relapse-reappearance of blasts in peripheral blood or bone marrow (≥5%) after first CR, or extramedullary relapse (EMR)). High-risk B-ALL at diagnosis (risk stratification per ELN 2022) or pre-transplant MRD-positive B-ALL. Confirmed T-ALL. History of central nervous system leukemia (CNSL) or pathologically confirmed extramedullary disease (EMD) during AML or ALL. Myelodysplastic neoplasms (MDS): IPSS score intermediate-2 or high; IPSS-R score high or very high; IPSS-M score high or very high.
- •Availability of an appropriate HLA-matched donor.
- •ECOG performance status 0-
- •Adequate major organ function, defined as: Left ventricular ejection fraction ≥50%. Pulmonary function: DLCO ≥50% of predicted value. Liver function: ALT/AST ≤3×ULN, total bilirubin ≤2×ULN. Renal function: estimated creatinine clearance (CrCl) ≥60 mL/min.
- •Ability to understand the study and voluntary signed informed consent.
排除标准
- •Acute promyelocytic leukemia (APL);
- •Active central nervous system leukemia;
- •Prior allogeneic hematopoietic stem cell transplantation;
- •Prior treatment with any EZH2 inhibitor;
- •Uncontrolled active infection as assessed by the investigator;
- •Myocardial infarction or unstable angina within the previous 6 months;
- •Known hypersensitivity to Zeprumetostat, azacitidine, or any excipient of the mBuCy regimen;
- •Pregnant or breastfeeding women;
- •Any other medical condition that, in the investigator's judgment, would preclude study enrollment.
研究组 & 干预措施
SHR2554/AZA + Overlapped TBF
SHR2554 350 mg BID and azacitidine 75 mg/m² daily on days -9 to -3, overlapping with TBF conditioning: thiotepa 5 mg/kg on days -8 and -7; cytarabine 2 g/m² q12h on day -6; busulfan 0.8 mg/kg q6h on days -5, -4, -3 (total 3.2 mg/kg/day); fludarabine 30 mg/m²/day on days -6 to -2.
干预措施: SHR2554/AZA + Overlapped TBF (Combination Product)
mBUCY conditioning Regimen Group
semustine 250 mg/m² on day -8; cytarabine 2 g/m² q12h on day -7; busulfan 0.8 mg/kg q6h on days -6, -5, -4 (total 3.2 mg/kg/day); cyclophosphamide 1.8 g/m²/day on days -3 and -2.
干预措施: mBUCY conditioning regimen (Drug)
结局指标
主要结局
Cumulative incidence of relapse（CIR）
时间窗: 2 years
It is measured the date from complete remission after transplantation to hematological relapse or molecular relapse was recorded. Patients who had no relapse at the last follow-up were considered as censored data, and non-relapse death was regarded as a competing risk event.
次要结局
- Time period for hematopoietic reconstruction(24 weeks)
- graft-versus-host disease (GvHD)(2 years)
- Overall survival（OS）(2 years)
- Disease-free survival（DFS）(2 years)
- transplant related mortality (TRM)(2 years)
- Regimen related toxicity(2 years)
- veno-occlusive disease (VOD)(2 years)
研究者
Limin Liu,MD
Principal Investigator
The First Affiliated Hospital of Soochow University