HSCT for Patients With Fanconi Anemia Using Risk-Adjusted Chemotherapy
RAFA
A Phase II Trial of HSCT for the Treatment of Patients With Fanconi Anemia Lacking a Genotypically Identical Donor, Using a Risk-Adjusted Chemotherapy Only Cytoreduction With Busulfan, Cyclophosphamide and Fludarabine
1 other identifier
interventional
70
1 country
3
Brief Summary
The purpose of this study is to determine whether the use of lower doses of busulfan and the elimination of cyclosporine will further reduce transplant-related side effects for patients with Fanconi Anemia (FA). Patients will undergo a transplant utilizing mis-matched related or matched unrelated donors following a preparative regimen of busulfan, fludarabine, anti-thymocyte globulin and cyclophosphamide.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Apr 2014
Longer than P75 for phase_2
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2014
CompletedFirst Submitted
Initial submission to the registry
April 28, 2014
CompletedFirst Posted
Study publicly available on registry
May 21, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2028
November 12, 2025
November 1, 2025
12.7 years
April 28, 2014
November 10, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Graft Failure or Rejection
Primary non-engraftment is diagnosed when the patient fails to achieve an ANC \>=500/mm3 at any time in the first 28 days post-transplant. If (1) after achievement of an absolute neutrophil count (ANC) \>=500/mm3, the ANC declines to \<500/mm3 for more than 3 consecutive days in the absence of relapse, or, (2) there is absence of donor cells in the marrow and/or blood as demonstrated by chimerism assay in the absence of relapse, a diagnosis of secondary graft failure is made. The patient is not evaluable for graft failure or rejection if recurrence of host MDS is detected concurrently.
5 years
Secondary Outcomes (1)
Post-transplant severe morbidity and mortality
2 years post-transplant
Other Outcomes (3)
Graft Versus Host Disease
One year
Leukemic Relapse
5 years
Secondary malignancies
5 years
Study Arms (3)
Arm A: Good Risk Patients
EXPERIMENTALPatients 18 years old or younger with marrow aplasia or single lineage cytopenias will be receive intravenous busulfan (4 doses x 2 days), cyclophosphamide (4 doses x 4 days) and fludarabine (4 doses x 4 days), as used in our most current study that led to \> 90% survival rates . Busulfan pharmacokinetics will not be used. All patients will receive rabbit ATG (4 doses x 4 days) prior to and granulocyte-colony stimulating factor (G-CSF) after transplant to promote engraftment. Cyclosporine will not be used for GVHD prophylaxis. The source of the stem cells for all patients will be peripheral blood stem cells mobilized by treatment of the donor with G-CSF. T-cell depletion will be performed by positive CD34 selection with the use of the Miltenyi system (CliniMACS device). Enrollment on this arm will include up to 50 patients.
Arm B: Intermediate Risk Patients
EXPERIMENTALPatients 18 years old or younger with MDS or AML will receive intravenous busulfan (4 doses x 2 days), cyclophosphamide (4 doses x 4 days) and fludarabine (4 doses x 4 days). Busulfan pharmacokinetics will be used in this arm, as the dose of busulfan is higher. All patients will receive rabbit ATG (thymoglobulin) (4 doses x 4 days) prior to and G-CSF post transplant to promote engraftment. Cyclosporine will not be used for prophylaxis against GVHD. The source of the stem cells for all patients will be peripheral blood stem cells induced and mobilized by treatment of the donor. T-cell will be performed by positive CD34 selection with the use of the Miltenyi system (CliniMACS device). The maximum number of patients enrolled in this arm will be 10.
Arm C: High Risk Patients
EXPERIMENTALPatients 19 years old or older with marrow aplasia or MDS or AML will receive intravenous busulfan (4 doses x 2 days), cyclophosphamide (4 doses x 4 days) and fludarabine (4 doses x 4 days). In this study, we will test whether outcomes can be improved, yet engraftment maintained, with a slightly reduced dose of busulfan. Patients will receive rabbit ATG (4 doses x 4 days) prior to and G-CSF post transplant to promote engraftment. Cyclosporine will not be used for GVHD prophylaxis. The source of the stem cells will be peripheral blood stem cells collected from donors treated with G-CSF. T-cell depletion will be performed by positive CD34 selection with the use of the Miltenyi system (CliniMACS device). The maximum number of patients enrolled will be 10.
Interventions
A standard dose of busulfan, associated with excellent outcomes in our previous trial will be used for young patients with marrow aplasia (arm A). A higher dose of busulfan will be used in younger patients with MDS and AML (arm B) to maximize disease control. A lower dose of busulfan will be used in older patients (arm C) to minimize toxicity.
Arms A, B and C - Cytoxan will be given as a 1-2 hour infusion for 4 days. The dose will be adjusted according to patients ideal body weight for obese patients.
Arms A, B and C - Fludarabine will be given IV over 30 minutes daily for 4 days. The dose will be adjusted according to renal function according to Institutional guidelines.
Arms A, B and C - 4 doses will be given prior to transplant to promote engraftment.
All patients will also receive G-CSF post-transplant to foster engraftment.
The source of stem cells for all patients will be peripheral blood stem cells (PBSC) induced and mobilized by treatment of the donor with G-CSF for 4-6 days. T-cell depletion will be uniformly performed by positive CD34 selection with the use of the Miltenyi system (CliniMACS device).
Eligibility Criteria
You may qualify if:
- Patients must have a diagnosis of Fanconi anemia
- Patients must have one of the following hematologic diagnoses:
- Severe Aplastic Anemia (SAA), with bone marrow cellularity of \<25% OR Severe Isolated Single Lineage Cytopenia and at least one of the following features:
- Platelet count \<20 x 109/L or platelet transfusion dependence\*
- ANC \<1000 x 109/L
- Hgb \<8 gm/dl or red cell transfusion dependence\*
- Myelodysplastic Syndrome (MDS) (based on WHO or IPSS Classification
- Acute Myelogenous Leukemia (untreated, in remission or with refractory or relapsed disease)
- Donors will be either human leukocyte antigen (HLA) compatible unrelated or HLA-genotypically matched related donors (no fully matched sibling donor).
- Patients and donors may be of either gender or any ethnic background.
- Patients must have a Karnofsky adult, or Lansky pediatric performance scale status \> 70%.
- Patients must have adequate physical function measured by:
- Cardiac: asymptomatic or if symptomatic then 1) left ventricular ejection fraction (LVEF) at rest must be \> 50% and must improve with exercise or 2) Shortening Fraction \> 29%
- Hepatic: \< 5 x upper limit of normal (ULN) alanine transaminase (ALT) and \< 2.0 mg/dl total serum bilirubin.
- Renal: serum creatinine \<1.5 mg/dl or if serum creatinine is outside the normal range, then CrCl \> 50 ml/min/1.73 m2
- +3 more criteria
You may not qualify if:
- Active CNS leukemia
- Female patients who are pregnant (positive serum or urine HCG) or breast-feeding.
- Active uncontrolled viral, bacterial or fungal infection
- Patient seropositive for HIV-I/II; HTLV -I/II
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Memorial Sloan Kettering Cancer Center
New York, New York, 10174, United States
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, 45229, United States
Fred Hutchinson Cancer Research Center
Seattle, Washington, 98109, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Parinda Mehta, MD
CCHMC
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 28, 2014
First Posted
May 21, 2014
Study Start
April 1, 2014
Primary Completion (Estimated)
December 1, 2026
Study Completion (Estimated)
December 1, 2028
Last Updated
November 12, 2025
Record last verified: 2025-11