SHR2554/AZA + Overlapped TBF for High-risk/Relapsed Leukemia/MDS

Sponsor
The First Affiliated Hospital of Soochow University
Study ID
NCT07562568
Phase
PHASE2
Status
Not Yet Recruiting

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Conditions

Eligibility Criteria

Sex
ALL
Age
15 Years - 60 Years
Healthy Volunteers
Not accepted

Interventions

  • SHR2554/AZA + Overlapped TBF — COMBINATION_PRODUCT
    SHR2554/AZA + Overlapped TBF conditioning Regimen and GVHD Prophylaxis of Haploid transplantation (Haplo-HSCT) and unrelated donor transplantation (UDT) : Cyclosporine A (CsA) + Mycophenolate mofetil dispersible tablets (MMF) + short-term low-dose methotrexate (MTX) + rabbit anti-human antithymocyte globulin (ATG) or GVHD Prophylaxis of Matched Sibling Donor Hematopoietic Stem Cell Transplantation (MSD-HSCT)：Cyclosporine A (CsA) + short-term low-dose methotrexate (MTX), then stem cells are infused into patient's blood.
  • mBUCY conditioning regimen — DRUG
    mBUCY conditioning Regimen and GVHD Prophylaxis of Haploid transplantation (Haplo-HSCT) and unrelated donor transplantation (UDT): Cyclosporine A (CsA) + Mycophenolate mofetil dispersible tablets (MMF) + short-term low-dose methotrexate (MTX) + rabbit anti-human antithymocyte globulin (ATG) or GVHD Prophylaxis of Matched Sibling Donor Hematopoietic Stem Cell Transplantation (MSD-HSCT)：Cyclosporine A (CsA) + short-term low-dose methotrexate (MTX), then stem cells are infused into patient's blood.

Study Details

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.

Key Dates

First listed
May 1, 2026
Start date
Jun 30, 2026
Status verified
Apr 2026
Primary completion
Jun 30, 2030
Completion
Jun 30, 2030

Study Design

Enrollment
160 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • Experimental: 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.
  • Active Comparator: 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.

Primary Outcome Measure

Cumulative incidence of relapse（CIR） [ Time Frame: 2 years ]

Central Contacts

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