About this trial
This study is being done to see if the addition of a targeted form of radiation to standard conditioning regimen will increase the amount of cancer cells that are killed off in the bone marrow and reduce the chances that your disease may return. This description is called Intensity Modulated Total Marrow Irradiation (IM-TMI).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patient age 18-75 years
Related donor who is, at minimum, Human Leukocyte Antigen (HLA) haploidentical or mismatched unrelated donor.
Haploidentical: The donor and recipient must be identical in at least one allele of each of the following genetic loci: HLA-A, HLA-B, HLA-Cw, HLA-DRB1, and HLA-DQB1. A minimum match of 4/8 if using HLA-A,-B,-DRB1,-Cw, or 5/10 if using HLA-A,-B,-Cw ,-DRB1, and -DQB1, will be considered evidence that the donor and recipient share one HLA haplotype.
Unrelated donors: unrelated donors who are mismatched in one or more of the following loci: HLA-A, HLA-B, HLA-Cw, HLA-DRB1,HLA-DQB1- can be included with a maximum of 4/8 or 5/10 mismatches.
Disqualifiers
a. Left ventricular ejection fraction < 40%
b. Bilirubin > 2.0 mg/dL (unless due to Gilbert's syndrome or hemolysis), and ALT and AST > 5 x ULN
c. FEV1 and FVC < 50% of predicted or DLCO <50% of predicted once corrected for anemia
d. Karnofsky score <70
Trial design
Single group
Treatments tested in this trial
Conditioning regimen with half-matched (haploidentical) stem cell transplant
RadiationExperimental: Total marrow irradiation 1.5 Gray (Gy) twice a daily on days -3 and -2
Conditioning regimen with half-matched (haploidentical) stem cell transplant
DrugAll patients will receive the following standard conditioning regimen: Fludarabine 30 mg/m2 IVPB daily from Day -6 (6 days before stem cell infusion) through Day -2
Conditioning regimen with half-matched (haploidentical) stem cell transplant
DrugCyclophosphamide 14.5 mg/kg intravenously prior to transplant on Days -6 and -5
Conditioning regimen with half-matched (haploidentical) stem cell transplant
DeviceTotal body irradiation 2Gy on Day -1.
Conditioning regimen with half-matched (haploidentical) stem cell transplant
Other interventionStem cell infusion on Day 0.
Conditioning regimen with half-matched (haploidentical) stem cell transplant
DrugMesna 14.5 mg/kg IV starting 30 minutes prior to cyclophosphamide on Days -6 and -5 and continuing for at least 12 hours after end of cyclophosphamide
Conditioning regimen with half-matched (haploidentical) stem cell transplant
DrugCyclophosphamide 50 mg/kg IV on Days 3 and 4 after transplant at a dose of 50mg/kg per day
Conditioning regimen with half-matched (haploidentical) stem cell transplant
DrugMesna 10 mg/kg IV every 4 hours for 10 doses starting 1 hour prior to cyclophosphamide on Days 3 and 4
Conditioning regimen with half-matched (haploidentical) stem cell transplant
DrugTacrolimus 0.03 mg/kg IBW Q24H starting on Day 5
Conditioning regimen with half-matched (haploidentical) stem cell transplant
DrugMycophenolate mofetil (MMF) 15 mg/kg PO TID (maximum daily dose of 3g/day) starting on Day 5
Treatment groups
Trial outcomes
Primary outcomes
Rate of 1 year Graft-Versus-Host Disease (GVHD) free, relapse free survival (GRFS) survival
To evaluate the number of patients with acute leukemia or MDS who are GVHD-free, relapse free (GRFS) after 1 year of undergoing undergoing a treatment regimen of haploidentical stem cell transplant with conditioning and total marrow irradiation.
Secondary outcomes
The number of patients with greater than or equal to grade 4 non-hematologic toxicities
Evaluate the incidence of greater than or equal to grade 4 non-hematologic toxicities
Engraftment rates
Engraftment rates at Day 30
Rates of incidence of full donor chimerism
Rates of incidence of full donor chimerism at Day 30
The rate of overall survival (OS)
The rate of overall survival (OS)
Sponsors and contacts
Click on the lead sponsor to view all of their trials.