Co-infusion of Treg-enriched Donor Lymphocytes With CD3-depleted Hematopoietic Stem Cell Graft to Prevent Graft-versus Host Disease After Allogeneic Hematopoietic Stem Cell Transplantation Among Children With Hematologic Malignancies
Recruiting now · Phase 2/Phase 3
Conditions studied: Acute Myeloid Leukemia, Relapsed, Acute Lymphoblastic Leukemia, High Risk, Acute Myeloid Leukemia, High Risk, Acute Lymphoblastic Leukemia, Relapse
In brief
Two key methods of GVHD prevention in allogeneic HSCT have a number of limitations: ex vivo T depletion is associated with an excess of infectious complications, and pharmacological immunosuppression with insufficient efficacy of GVHD prevention. Modern graft engineering technologies make it possible to create a graft with a balanced cell composition, reducing the risk of adverse events, in particular, severe forms of acute and chronic GVHD, while preserving the immunological function of the graft. In the proposed concept, enrichment of the T graft with regulatory cells will reduce the risk of GVHD and preserve a sufficient number of T lymphocytes in the graft for the formation of protective anti-infective immunity in the early stages after HSCT. The combination of partial T depletion and pharmacological immunosuppression minimized in volume and duration will combine the advantages of T depletion (early engraftment, low risk of GVHD, low risk of organ complications) and pharmacological prophylaxis (restoration of anti-infective immunity).
Key facts
- Study ID
- NCT07366801
- Run by
- Federal Research Institute of Pediatric Hematology, Oncology and Immunology
- People needed
- 64
- Starts
- 2025-09-03
- Expected to finish
- 2028-02-03
- Last updated by the study team
- 2026-01-26
Who can join
Age: 1 and older, up to 25. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Informed consent signed by the patient (age 14 to 25 years) and/or his/her legal representative (age 0 to 18 years).
- The patient has an indication for allogeneic hematopoietic stem cell transplantation (HSCT) established in accordance with the current regulatory framework
- Planned HSCT from a haploidentical donor
- The Karnofsky or Lansky score is more than 70%
- Life expectancy of at least 8 weeks
- Heart function: ejection fraction of at least 40%
- Consent to continue follow-up for 3 years
You may not qualify if…
- Acute viral hepatitis or acute HIV infection
- Hypoxemia with SaO2 <90%
- Bilirubin >3 normal
- Creatinine >3 norms
- Pregnancy and lactation
- Life-threatening infection
- Severe (>?) pathology of the central nervous system (epilepsy, dementia, organic damage to the central nervous system)
- Karnofsky score or Lansky score <70%
Where it is running
- National medical research center of pediatric haematology, oncology and immulogy named after Dmytriy Rogachyov, Moscow, 117198 — Moscow, Russia (enrolling)
Full record on ClinicalTrials.gov
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