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Randomized Study of Conditioning of Fludarabine Combined With Single or Dual Alkylating Agents in Myeloid Malignancies

Multiple-center Randomized Study to Compare Fludarabine and Busulfan Versus Fludarabine, Busulfan and Melphalan in Adult Patients With Acute Myeloid Leukemia (AML) and Myelodysplasia Syndrome (MDS)

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05991908
Enrollment
222
Registered
2023-08-15
Start date
2023-10-19
Completion date
2026-06-30
Last updated
2025-02-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myeloid Leukemia, Myelodysplastic Syndromes

Keywords

conditioning regimen, melphalan, busulfan, fludarabine

Brief summary

Fludarabine and busulfan becomes standard conditioning regimen for adult patients with acute myeloid leukemia (AML) or myelodysplasia syndrome (MDS). The overall relapse rate is 15\ 20%. More recently, the investigators demonstrated that conditioning regimen with dual alkylating agents consistent of fludarabine, busulfan and melphalan achieved a low incidence of relapse (\<10%). This multiple-center randomize study is aim to compare the transplantation outcome in adult patients with AML/MDS undergoing allo-HSCT with conditioning regimen of Flu-Bu4 vs. FLu-Bu-Mel.

Detailed description

Fludarabine and busulfan was considered as myeloablative but reduced toxicity regimen and became as the mainstay of conditioning regimen for adult patients with acute myeloid leukemia (AML) or myelodysplasia syndrome (MDS). The disease relapse remained as major cause of treatment failure. In general, the cumulated incidence of relapse (CIR) is about 15\ 20% dependent on the risk of patients undergoing allogeneic stem cell transplantation (allo-HSCT). Conditioning regimen with dual alkylating agents such as fludarabine, busulfan and thiotepa (TBF) showed decreased risk of relapse in myeloid malignancies. More recently, the investigators demonstrated that conditioning regimen with dual alkylating agents consistent of fludarabine, busulfan and melphalan could achieve a low incidence of relapse (2 year CIR \<10%). In this multiple-center randomize study, the aim is to compare the transplantation outcome in adult patients with AML/MDS undergoing allo-HSCT with conditioning regimen of Flu-Bu vs. Flu-Bu-Mel.

Interventions

FLudarabine 150mg/m2 + Busulfan 6.4mg.kg + Mel 140mg/m2

FLudarabine 150mg/m2 + Busulfan 12.8mg.kg

Sponsors

Shanghai Jiao Tong University School of Medicine
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

study group with fludarabine, busulfan and melphalan regimen versus control group with fludarabine and busulfan

Eligibility

Sex/Gender
ALL
Age
16 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

* acute myeloid leukemia (acute promyelocytic leukemia excluded) in 1st complete remission * myelodysplasia syndrome with bone marrow blast \>5% and remaining less than 20% at transplantation * patients with HLA matched sibling donor, 9-10 matched unrelated donor or haplo-identical related donors * inform consent provided

Exclusion criteria

* AML patients with active CNS or extramedullary diseases * patients with active viral, bacterial or fungal infection * patients with hepatitis B virus \>1X103 copy/ml * patients with abnormal liver function, renal function, respiratory or cardiac dysfunction * patients with uncontrolled mental disorders * patients with HIV

Design outcomes

Primary

MeasureTime frameDescription
disease-free survival2 yearevent defined as relapse and death of any causes

Secondary

MeasureTime frameDescription
overall survival2 yearevent defined as death of any causes
incidence of relapse2 yearevent defined as disease relapse (bone marrow or extra medullary)
non relapse mortalityday 100event defined as death without disease relapse

Countries

China

Contacts

Primary Contactchun Wang
wangchunsh@126.com13386259777

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026