Indication of HSCT in Patients With Refractory/Relapse AA After First-line Standard Immunosuppressive Therapy Aged More Than 40 Years
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
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| 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 | — |