About this trial
This study aims to compare the efficacy and safety of HLA-haploidentical hematopoietic stem cell transplantation (HLA-haplo HSCT) versus optimal immunosuppressive therapy (IST) as first-line treatments for severe aplastic anemia (SAA) through a real-world cohort design. The selection of treatment regimens for subjects is based on clinical decision-making in real-world practice, comprehensively considering factors including patient age, donor matching status, comorbidities, and treatment preferences, with non-randomized group allocation.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
(1) Confirmed diagnosis of severe aplastic anemia, including very severe aplastic anemia, severe aplastic anemia, and hepatitis-associated severe aplastic anemia.
Disqualifiers
Inherited bone marrow failure syndromes (IBMFS), including Fanconi anemia, dyskeratosis congenita, Shwachman-Diamond syndrome (SDS), etc.;
Clonal cytogenetic abnormalities or bone marrow examination suggesting pre-MDS or MDS;
Known severe allergy to ATG;
Previous allogeneic or autologous hematopoietic stem cell transplantation;
Trial design
Parallel
Treatments tested in this trial
IST (ATG + CsA+TPORA)
Procedure/SurgeryThe selection of treatment regimens for subjects is based on clinical decision-making in real-world practice, comprehensively considering factors including patient age, donor matching status, comorbidities, and treatment preferences, with non-randomized group allocation. Patients in the immunosuppressive therapy group receive a regimen comprising anti-thymocyte globulin (ATG) + cyclosporine A (CSA) + thrombopoietin receptor agonist (TPO-RA).
tranplantation
Procedure/SurgeryThe selection of treatment regimens for subjects is based on clinical decision-making in real-world practice, comprehensively considering factors including patient age, donor matching status, comorbidities, and treatment preferences, with non-randomized group allocation. Patients in the transplantation group undergo haploidentical hematopoietic stem cell transplantation (haplo-HSCT).
Treatment groups
Trial outcomes
Primary outcomes
Failure Free Survival, FFS
survival with complete response whereas death, graft failure and relapse are considered treatment failures
Secondary outcomes
Overall Survival, OS
Treatment Related Mortality, TRM
Transplantation-related mortality (TRM) was defined as death without graft failure
hematology remission
hematology recovery, including WBC, Hb and PLT
Infection incidence
Locations
Sponsors and contacts
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