Refractory Acute Myeloid Leukemia
Conditions
Keywords
refractory, acute myeloid leukemia, hematopoietic stem cell transplantation
Brief summary
In this phase clinical trail, we evaluate the efficacy and feasibility of azacytidine and venetoclax as leukemia debulking treatment followed by reduced intensity conditioning regimen consisting of Fludarabine + Busulfan + Melphalan as salvage treatment in patients with refractory AML .
Detailed description
In refractory AML, allogeneic hematopoietic stem cell transplantation (allo-HCST) is considered as the only curative regimen. In this phase II clinical trial, we plan to evaluate the efficacy and feasibility of new sequential transplantation protocol. All patients receive azacytidine and venetoclax as leukemia debulking treatment which is followed by reduced intensity conditioning regimen consisting of Fludarabine (150mg/m2) + Busulfan (6.4mg/kg) + Melphalan (70mg/m2). The graft-versus host disease (GVHD) prophylaxis regimen is based on reduced dose of post-transplantation cyclophosphamide (PT-CY) 40mg/kg day+3\ +4, tacrolimus and low-dose anti-thymoglobulin (ATG, 2.5mg/kg) in case of HLA-matched unrelated donor or halo-donor transplantation.
Interventions
aaa-ven treatment followed by allo-HCTS with reduced toxicity conditioning (RTC) of Fludarabine, Busulifan and Melphalan
Sponsors
Study design
Eligibility
Inclusion criteria
* refractory AML (no remission after 2 induction therapy, relapsed AML within 6 months of first complete remission (CR), relapse AML no CR after reinduction therapy), multiple relapse and refractory relapse AML * patients with HLA matched related or unrelated donor (9\ 10/10) or haplo-identical related donor
Exclusion criteria
* Patients with poor liver function (enzyme \>2N or bilirubin \>2N) * poor renal function (Scr \>1.5N) * poor cardiac function (EF\<45%) * inform consent not provided
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| relapse-free survival | 12 months | event defined as relapse or death of any causes |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| overall survival | 12 months | event defined as death of all causes |
| non-relapse mortality | 12 months | event defined as death of all causes other than leukemia relapse |
| relapse | 12 months | event defined as leukemia relapse |
| GVHD and relapse free survival (GRFS) | 12 months | event defined as leukemia relapse, death of any causes, III-IV aGVHD or moderate to severe cGVHD |
Countries
China