NCT00920972 · Washington University School of Medicine
Campath/Fludarabine/Melphalan Transplant Conditioning for Non-Malignant Diseases
What this study is about
The hypothesis for this study is that a preparative regimen that maximizes host immunosuppression without myeloablation will be well tolerated and sufficient for engraftment of donor hematopoietic cells. It is also to determine major toxicities from these conditioning regimens, within the first 100 days after transplantation.
View original scientific description
The hypothesis for this study is that a preparative regimen that maximizes host immunosuppression without myeloablation will be well tolerated and sufficient for engraftment of donor hematopoietic cells. It is also to determine major toxicities from these conditioning regimens, within the first 100 days after transplantation.
Interventions
DRUG
Treatment Plan 1: Stratum 1
Day -50 to -21: Hydroxyurea 30mg/kg PO q day Day -22: Campath-1H 3 mg IV or SQ... Day -21: Campath-1H 10 mg IV or SQ... Day -20: Campath-1H 15 mg IV or SQ... Day -19: Campath-1H 20 mg IV or SQ... Day -8: Fludarabine 30mg/m2 IV... Day -7: Fludarabine 30mg/m2 IV... Day -6: Fludarabine 30mg/m2 IV... Day -5: Fludarabine 30mg/m2 IV... Day -4: Fludarabine 30mg/m2 IV... Day -3: Melphalan 140 mg/m2 IV... (dose modifications for patients \<10 kgs) Procedure/Surgery: Hematopoietic stem cell infusion on Day 0...
DRUG
Treatment Plan 2: Strata 2, 3, or 4
Day -50 to -21: Hydroxyurea 30mg/kg PO q day… Day -22: Campath-1H 3 mg IV or SQ... Day -21: Campath-1H 10 mg IV or SQ... Day -20: Campath-1H 15 mg IV or SQ... Day -19: Campath-1H 20 mg IV or SQ... Day -8: Fludarabine 30mg/m2 IV... Day -7: Fludarabine 30mg/m2 IV... Day -6: Fludarabine 30mg/m2 IV... Day -5: Fludarabine 30mg/m2 IV... Day -4: Fludarabine 30mg/m2 IV... Day -4: Thiotepa 8mg/kg IV… Day -3: Melphalan 140 mg/m2 IV... (dose modifications for patients \<10 kgs) Procedure/Surgery: Hematopoietic stem cell infusion on day 0...
DRUG
GVHD Regimen A: UCB Recipients
Day -3: Begin Tacrolimus or cyclosporine Begin MMF Day -1: Abatacept 10mg/kg IV Day +5: Abatacept 10mg/kg IV Day +14: Abatacept 10mg/kg IV Day +28: Abatacept 10mg/kg IV Day +60: Abatacept 10mg/kg IV Day +100: Abatacept 10mg/kg IV
DRUG
GVHD Regimen B: BM Recipients
Day -3: Begin Tacrolimus or cyclosporine Begin MMF Day -1: Abatacept 10mg/kg IV Day +1: Methotrexate 7.5mg/m2 IV Day +3: Methotrexate 7.5mg/m2 IV Day +5: Abatacept 10mg/kg IV Day +6: Methotrexate 7.5mg/m2 IV Day +14: Abatacept 10mg/kg IV Day +28: Abatacept 10mg/kg IV Day +60: Abatacept 10mg/kg IV Day +100: Abatacept 10mg/kg IV Day +180: Abatacept 10mg/kg IV Day +270: Abatacept 10mg/kg IV Day +365: Abatacept 10mg/kg IV
Primary outcome measures
Donor engraftment as measured by chimerism
Time frame: 100 days post-transplant
Engraftment is measured in myeloid and lymphoid lineage cells
Major toxicities as graded by the CTC v4
Time frame: 100 days post-transplant
Toxicity monitoring includes unanticipated side effects (new) and all severe irreversible toxicities Grade 3 and above unexpected Grade 4 and above - all toxicities that are possibly, probably or definitely related to protocol therapy All deaths irrespective of attribution
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Stratum 1: Patient must have non-malignant disorder, excluding thalassemia. Must be receiving a 8/8 HLA-matched bone marrow, related or unrelated Stratum 2: Patient must have thalassemia receiving 8/8 HLA-matched bone marrow or 5-8/8 HLA-matched UCB. Related or unrelated. Stratum 3: Patient must have a hemoglobinopathy receiving 7/8 HLA-matched bone marrow or 5-8/8 HLA-matched UCB. Related or unrelated. Stratum 4: Patient must have a non-malignant disorder (excluding hemoglobinopathy) receiving 7/8 HLA-matched bone marrow or 5-8/8 HLA-matched UCB. Related or unrelated. All strata:
- Recipient age \< 21 years
- Lansky/Karnofsky \>/= 40
- Adequate pulmonary, renal, liver, and other organ function as defined in protocol
- Negative pregnancy test
- Adequate total nucleated cell or CD34+ dose of product as defined in protocol
- If sickle cell, Hemoglobin S \<30%
Exclusion criteria
- HIV positive
- Invasive infection
- Pregnancy/lactating
Where
- Phoenix, Arizona
- Orange, California
- San Diego, California
- New Haven, Connecticut
- Washington D.C., District of Columbia
- Jacksonville, Florida
- Miami, Florida
- St. Petersburg, Florida
- Chicago, Illinois
- Indianapolis, Indiana
- New Orleans, Louisiana
- Kansas City, Missouri
And 11 more locations — see the full list below.
Collaborators
St. Louis Children's Hospital
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Mar 25, 2026 · Source of record for eligibility and locations