Study Stopped
Changing study design. Will replace with a different protocol.
Treg Cells for AGVHD in Non-myeloablative UCB Transplant
T Regulatory Cell for Suppression of Acute Graft-vs-Host-Disease in Recipients of a Non-Myeloablative Umbilical Cord Blood Transplantation for Treatment of Hematological Malignancies
3 other identifiers
interventional
N/A
1 country
1
Brief Summary
This is a Simon's optimal two-stage phase II trial designed to estimate grade II-IV acute graft-versus-host disease (GVHD) after infusion of T regulatory (nTreg) in a fixed dose ratio to the combined CD3+ cell count of the two graft units in recipients of double UCB transplantation. The nTreg cells (manufactured from a 3rd cord blood unit) are infused on day 0 at least 1 hour after the 2nd unit of the double umbilical cord blood (UCB) transplant. The nTreg cells require an 18 day (±2 days) lead time based on the planned transplant day. The combined CD3+ cell content from the two graft UCB units is enumerated upon thaw (day 0). The patient then receives the number of nTregs cells from the 3rd cord product to achieve a Treg:CD3+ cells ratio of 5:1. The nTreg cell dose depends on the CD3+ cell content of the two graft UCB graft units, but it will not exceed the highest dose level safely tested in the ongoing University of Minnesota phase I Treg dose escalation study MT 2006-01.
Trial Health
Trial Health Score
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Started Jun 2016
1 active site
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Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 26, 2014
CompletedFirst Posted
Study publicly available on registry
April 21, 2014
CompletedStudy Start
First participant enrolled
June 1, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2018
CompletedDecember 2, 2017
November 1, 2017
2.3 years
March 26, 2014
November 29, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Incidence of grade II-IV acute graft-versus-host disease
Determine if 3:1 ratio of Treg:CD3+ cells reduces the risk grade II-IV acute graft versus host disease of 20% by day 100 as compared to patients with hematological malignancy receiving same conditioning regimen and immunosuppression but no Tregs.
Day +100
Secondary Outcomes (9)
Incidence of double and single unit chimerism
Day +100
Incidence of grade III-IV acute graft-versus-host disease
Day +100
Incidence of viral and fungal infections
1 year
Survival
1 year
Incidence of neutrophil recovery
Day 42
- +4 more secondary outcomes
Study Arms (2)
TREG
EXPERIMENTALT regulatory cells after non-myeloablative (using fludarabine, cyclophosphamide, and total body irradiation) umbilical cord transplant.
Non-Myeloablative Only
EXPERIMENTALNon-myeloablative (using fludarabine, cyclophosphamide, and total body irradiation) umbilical cord transplant.
Interventions
Fixed dose of nTreg cells will be infused on day 0 of transplant after the umbilical cord blood cells
Fludarabine 30mg/m\^2 IV over 1 hour on days -6 through -2 from transplant
Cyclophosphamide 50 mg/kg IV over 2 hours on day -6 from transplant
Total Body Irradiation (TBI) 200 cGy administered on day -1 in a single fraction will be given at a dose rate of 10-19 cGy/minute prescribed to the midplane of the patient at the level of the umbilicus.
Eligibility Criteria
You may qualify if:
- Must be ≥18, but \< 70 years of age with no matched 5/6 or 6/6 sibling donor - patients ≥ 70 and ≤ 75 years of age may be eligible if they have a Co-Morbidity score ≤ 2 (Appendix II)
- Three UCB units composing the graft will be selected according to the current University of Minnesota umbilical cord blood graft selection algorithm.
- Each UCB unit must be matched at 4-6 HLA-A, B, DRB1 antigens with the recipient. This may include 0-2 antigen mismatches at the A or B or DRB1 loci. Each unit must be a 4-6 HLA-A, B, DRB1 antigen match to each other, not necessarily at the same loci they are matched to the recipient.
- Disease Criteria
- Acute Leukemias: Must be in remission by morphology (\<5% blasts). Note cytogenetic relapse or persistent disease without morphologic relapse is acceptable. Also a small percentage of blasts that is equivocal between marrow regeneration versus early relapse are acceptable provided there are no associated cytogenetic markers consistent with relapse.
- Acute Lymphoblastic Leukemia (ALL) in first complete remission (CR1) that is NOT considered favorable-risk as defined by the presence of at least one of the following:
- Adverse cytogenetics such as t(9;22), t(1;19), t(4;11), other MLL rearrangements
- White blood cell counts of greater than 30,000/mcL (B-ALL) or greater than 100,000/mcL (T-ALL) at diagnosis
- Recipient age older than 30 years at diagnosis
- Time to CR greater than 4 weeks
- Acute Myelogenous Leukemia (AML) in first complete remission (CR1) that is NOT considered as favorable-risk. Favorable risk is defined as having one of the following:
- t(8,21) without CKIT mutation
- inv(16) without CKIT mutation or t(16;16)
- Normal karyotype with mutated NPM1 and not FLT-IND
- Normal karyotype with double mutated CEBPA
- +18 more criteria
You may not qualify if:
- Untreated active infection at time of transplantation
- History of HIV infection
- Pregnant or breast feeding. The agents used in this study may be teratogenic to a fetus and there is no information on the excretion of agents into breast milk. Females of childbearing potential must have a blood test or urine study within 14 days prior to registration to rule out pregnancy
- Prior allogeneic transplantation
- Less than 3 months from myeloablative conditioning for autologous transplantation
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Masonic Cancer Center, University of Minnesotalead
- National Institutes of Health (NIH)collaborator
- National Cancer Institute (NCI)collaborator
Study Sites (1)
University of Minnesota Masonic Cancer Center
Minneapolis, Minnesota, 55455, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Claudio Brunstein, MD, PhD
University of Minnesota
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 26, 2014
First Posted
April 21, 2014
Study Start
June 1, 2016
Primary Completion
September 1, 2018
Study Completion
September 1, 2018
Last Updated
December 2, 2017
Record last verified: 2017-11