A Phase 1/2 Trial of Donor Regulatory T-cells for Steroid-Refractory Chronic Graft-versus-Host-Disease (TREGeneration)
Graft vs Host Disease
About this trial
This is an interventional treatment trial for Graft vs Host Disease focused on measuring Allogeneic hematopoietic stem cell transplantation, Graft vs host disease, Regulatory T cells
Eligibility Criteria
Inclusion Criteria:
- Patients must have persistent signs and symptoms despite the use of prednisone or equivalent at ≥ 0.25 mg/kg/day (or 0.5 mg/kg every other day), for at least 4 weeks without complete resolution of signs and symptoms. Occasional patients requiring lower doses of prednisone will be eligible if associated with other immunosuppressive drugs.
- Stable immunosuppressive medication in the 4 weeks prior to initiation of treatment
- PS 0-2 ECOG
- Adequate liver, kidney, lung and hematopoietic system functions
Exclusion Criteria:
- Pediatric patients
- Pregnant women
- Ongoing prednisone requirement >1 mg/kg/day (or equivalent)
- Concurrent use of calcineurin-inhibitor plus sirolimus (either agent alone is acceptable)
- New immunosuppressive medication in the 4 weeks prior
- Extra-corporeal Photopheresis or rituximab therapy in the 4 weeks prior
- Exposure to T-cell or IL-2 targeted medication (e.g. ATG, alemtuzumab, basiliximab, denileukin diftitox) within 100 days prior
- Donor lymphocyte infusion within 100 days prior
- Active malignant relapse
- Active uncontrolled infection
- HIV-infected patients
Sites / Locations
- Instituto Portugues de OncologiaRecruiting
- Hospital de Santa Maria, Faculdade de Medicina da Universidade de Lisboa, Instituto de Medicina MolecularRecruiting
- Instituto Portugues de OncologiaRecruiting
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Experimental
Experimental
Experimental
Experimental
Administration of 0.5 x 10ˆ6 donor Treg/kg
Administration of 1.0 x 10ˆ6 donor Treg/kg
Administration of 2.0-3.0 x 10ˆ6 donor Treg/kg
Administration of MTD of donor T reg
First group of 5 patients will receive a total of 0.5 x 10ˆ6 donor Treg/kg. Part of Phase 1 study.
Second group of 5 patients will receive a total of 1.0 x 10ˆ6 donor Treg/kg. Part of Phase 1 study.
Third group of 5 patients will receive a total of 2.0-3.0 x 10ˆ6 donor Treg/kg. Part of Phase 1 study.
Preliminary Phase 2 study will include another 5 to 10 patients at the MTD identified in the Phase 1 study