drugset / Trial / NCT06646497

Indication of HSCT in Patients With Refractory/Relapse AA After First-line Standard Immunosuppressive Therapy Aged More Than 40 Years

NCT06646497

Phase 2 Recruiting 52 enrolled Assistance Publique - Hôpitaux de Paris
NaSingle-groupOpen-labelTreatment

Summary

Outcomes for adult patients with Severe Aplastic Anemia (SAA) aged more than 40 years who are refractory or in relapse after first-line IST remain poor. Hematopoietic stem cell transplantation (HSCT) is the unic valid therapeutic option but results have always been disappointing in patients aged 40 years or older. The first cause of death after HSCT in those refractory/relapse SAA patients is still graft versus host disease (GvHD). Recently, new strategies to prevent GvHD, including T-cell replete grafts with administration of post-transplantation cyclophosphamide (PTCy), have revolutionized the field, notably in haplo-identical donor setting. Using marrow as source of stem cells and a PTCy strategy not only in haplo-identical donor setting but also in case of an available matched sibling or unrelated donor might prevent drastically GvHD and eventually be practice changing. Evaluating this new strategy is the main objectives of "APARR".

Timeline

Start
2025-01-24
Primary completion
2030-01-24
Completion
2030-01-24

Drugs

EvaluationDrugModalityDoseRoute
Background Cyclophosphamide Other / unclassified 14.5 mg/kg Intravenous
Background Cyclophosphamide Other / unclassified 50 mg/kg Intravenous
Background Fludarabine Small molecule 30 mg/m2 Intravenous
Background Mycophenolate Sodium Unknown
Background Rituximab Monoclonal antibody 150 mg/m2 Intravenous
Background Tacrolimus Small molecule Oral
Background Thymoglobulin Protein / enzyme biologic 0.5 mg/kg
Background Thymoglobulin Protein / enzyme biologic 2 mg/kg
Background Thymoglobulin Protein / enzyme biologic 2.5 mg/kg