Study Stopped
Low accrual
Donor Stem Cell Transplantation Using α/β+ T-lymphocyte Depleted Grafts From HLA Mismatched Donors
Allogeneic Hematopoietic Cell Transplantation Using α/β+ T-lymphocyte Depleted Grafts From HLA Mismatched Donors
1 other identifier
interventional
9
1 country
1
Brief Summary
This study is being done to learn whether a new method to prevent rejection between the donor immune system and the patient's body is effective.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Jul 2018
Longer than P75 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 25, 2018
CompletedFirst Submitted
Initial submission to the registry
July 30, 2018
CompletedFirst Posted
Study publicly available on registry
August 3, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 6, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
March 6, 2024
CompletedResults Posted
Study results publicly available
April 6, 2025
CompletedApril 6, 2025
March 1, 2024
5.6 years
July 30, 2018
February 28, 2025
March 19, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
the Number of Incidences of Grade 3-4 Acute GVHD
The intervention will be considered unpromising if the rate of GVHD is greater than 40% and promising if the rate is 20% or less. Number of participants with and without SAE will be evaluated.
2 years
Study Arms (3)
Radiation, Thiotepa & Cyclophosphamide
EXPERIMENTALBusulfan, Fludarabine & Melphalan
EXPERIMENTALClofarabine, Thiotepa & Melphalan
EXPERIMENTALInterventions
Hyperfractionated TBI is administered by a linear accelerator at a dose rate of \<20 cGy/minute. Doses of 125 cGy/fraction are administered at a minimum interval of 4 hours between fractions, three times/day for a total of 11 or 12 doses (1,375 or 1,500 cGy) over 4 days (days -9 through -6).
Thiotepa 5 mg/kg IV
Melphalan 70 mg/m2 IV
All patients will receive anti-thymocyte globulin based conditioning followed by a G-CSF mobilized, peripheral blood hematopoietic progenitor cell HPC(A) product depleted of TCR-α/β+ Tlymphocytes using the CliniMACS system.
Rituximab 200 mg IV flat dose
Rabbit antithymocyte globulin dosing per nomogram. This dynamic nomogram is based on absolute lymphocyte count at the start of conditioning and can result in either 2 or 3 day ATG administration. If a patient requires 2 day administration the subjequent chemotherapies may be moved forward by one day at the treating physician's discretion.
Eligibility Criteria
You may qualify if:
- Patients with any of the following hematologic malignancies who are considered to be eligible for allogeneic transplantation:
- Acute lymphoid leukemia (ALL) in first complete remission (CR1) with high risk for relapse including:
- Detectable minimal residual disease by either multicolor flow cytometry or by genomic assay after initial induction therapy
- t(9;22) or detected BCR-ABL1 translocation by genomic methodologies
- BCR-ABL1-Like B-ALL \[23\] including mutations of IKZF1 or CRLF2
- Translocations or mutations involving 11q23 (MLL) gene.
- Hypodiploid karyotype
- Deletion of 9p
- Loss of 17p or TP53 mutation
- T-lymphocyte lineage antigen expression (T-ALL)
- Prior CNS or other extramedullary involvement
- WBC count ≥ 100,000 cells/μL at diagnosis
- Acute biphenotypic or bilineal leukemia in CR1
- Acute myeloid leukemia (AML) in CR1 with
- Detectable minimal residual disease (MRD) by either multicolor flow cytometry or by genomic assay after initial induction therapy
- +37 more criteria
You may not qualify if:
- Persons with a HLA matched sibling donor or a 8/8 allele level HLA-matched unrelated donor.
- Female patients who are pregnant or breast-feeding.
- Persons with an infection that is not responding to antimicrobial therapy.
- Persons who are seropositive for HIV.
- Persons with active/detectable central nervous system malignancy.
- Persons who do not meet the age and organ function criteria specified above.
- Presence of psychiatric or neurologic disease, or lack of social support that limits the patient's ability to comply with the treatment protocol including supportive care, followup, and research tests.
- Prior allogeneic hematopoietic cell transplantation are ineligible.
- Patients with history of other malignancy within 5 years of study therapy are ineligible with the following exceptions: Low grade prostate cancer (Gleason's ≤6) treated with curative intent, breast ductal carcinoma in situ treated with curative intent, or nonmelanomatous skin carcinomas.
- Partially HLA-matched unrelated volunteers (allele level matched at 6-7 of 8 HLA loci: -A, -B, -C, and -DRB1) are eligible.
- Related, haploidentical donors are eligible.
- Able to provide informed consent to the donation process
- Meet standard criteria for donor collection as defined by the National Marrow Donor Program Guidelines.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Memorial Sloan Kettering Cancer Center
New York, New York, 10065, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Brian Shaffer, MD
- Organization
- Memorial Sloan Kettering Cancer Center
Study Officials
- PRINCIPAL INVESTIGATOR
Brian Shaffer, MD
Memorial Sloan Kettering Cancer Center
Publication Agreements
- PI is Sponsor Employee
- Yes
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
July 30, 2018
First Posted
August 3, 2018
Study Start
July 25, 2018
Primary Completion
March 6, 2024
Study Completion
March 6, 2024
Last Updated
April 6, 2025
Results First Posted
April 6, 2025
Record last verified: 2024-03