Trials / Not Yet Recruiting
Not Yet RecruitingNCT07254793
Prophylactic and Therapeutic DLI-X for Leukemia Relapse After HCT
A Feasibility/Pilot First-in-human Study of Exercise-mobilized NK-enriched Donor Lymphocyte Infusions (DLI-X) to Prevent or Treat Leukemia Relapse After Allogeneic Hematopoietic Cell Transplantation
- Status
- Not Yet Recruiting
- Phase
- Phase 1
- Study type
- Interventional
- Enrollment
- 94 (estimated)
- Sponsor
- University of Arizona · Academic / Other
- Sex
- All
- Age
- 65 Years
- Healthy volunteers
- Not accepted
Summary
The primary objective of this proposal is to conduct the first-in-human randomized clinical trial evaluating prophylactic DLI-X (pro-DLI-X) for relapse prevention following matched sibling donor (MSD) or haploidentical (haplo) hematopoietic cell transplantation (HCT) in patients with hematologic malignancies. Additionally, the study aims to assess the safety and efficacy of therapeutic DLI-X (t-DLI-X) compared to t-DLI alone in patients with minimal residual disease (MRD+) or overt relapse post-alloHCT. For patients with CD19-positive lymphoid malignancies, the study will incorporate blinatumomab, while those with myeloid or CD19-negative lymphoid malignancies will receive t-DLI-X or t-DLI alone. We hypothesize that both pro-DLI-X and t-DLI-X, with or without blinatumomab, will demonstrate safety and superior efficacy by enhancing graft-versus-leukemia (GvL) effects mediated by natural killer (NK) cells, γδ T cells, and CD8+ T cells, while maintaining manageable and treatment-responsive graft-versus-host disease (GvHD).
Conditions
- Acute Lymphoid Leukemia
- Acute Myeloid Leukemia
- Acute Undifferentiated Leukemia (AUL)
- Myelodysplastic Syndrome
- Chronic Myeloid Leukemia
- Non-Hodgkin Lymphoma
Interventions
| Type | Name | Description |
|---|---|---|
| BIOLOGICAL | Exercise Mobilized Prophylactic DLI | Pro-DLI-X will be given through the patient's central line at an initial dose of 100,000 CD3+ cells/kilogram (kg) of recipient weight for haploidentical hematopoietic cell transplantation (haploHCT) and 300,000 CD3+ cells/kg for matched sibling donor hematopoietic cell transplantation (MSD HCT). Participants will receive up to 3 doses of pro-DLI-X, and each dose will be increased as follows: dose 2 will be 300,000 CD3+ cells/kg for haploHCT and 1,000,000 CD3+ cells/kg for MSD HCT; dose 3 will be 1,000,000 CD3+ cells/kg for haploHCT and 3,000,000 CD3+ cells/kg for MSD HCT. |
| BIOLOGICAL | Standard Prophylactic DLI | Pro-DLI will be given through the patient's central line at an initial dose of 100,000 CD3+ cells/kilogram (kg) of recipient weight for haploidentical hematopoietic cell transplantation (haploHCT) and 300,000 CD3+ cells/kg for matched sibling donor hematopoietic cell transplantation (MSD HCT). Participants will receive up to 3 doses of pro-DLI-X, and each dose will be increased as follows: dose 2 will be 300,000 CD3+ cells/kg for haploHCT and 1,000,000 CD3+ cells/kg for MSD HCT; dose 3 will be 1,000,000 CD3+ cells/kg for haploHCT and 3,000,000 CD3+ cells/kg for MSD HCT. |
| BIOLOGICAL | Exercise Mobilized Therapeutic DLI | t-DLI-X will be given through the patient's central line at an initial dose of 1,000,000 CD3+ cells/kilogram (kg) of recipient weight for haploidentical hematopoietic cell transplantation (haploHCT) and 3,000,000 CD3+ cells/kg for matched sibling donor hematopoietic cell transplantation (MSD HCT). Participants will receive up to 3 doses of t-DLI-X, and each dose will be increased as follows: dose 2 will be 3,000,000 CD3+ cells/kg for haploHCT and 10,000,000 CD3+ cells/kg for MSD HCT; dose 3 will be 10,000,000 CD3+ cells/kg for haploHCT and 30,000,000 CD3+ cells/kg for MSD HCT. |
| BIOLOGICAL | Standard Therapeutic DLI | t-DLI will be given through the patient's central line at an initial dose of 1,000,000 CD3+ cells/kilogram (kg) of recipient weight for haploidentical hematopoietic cell transplantation (haploHCT) and 3,000,000 CD3+ cells/kg for matched sibling donor hematopoietic cell transplantation (MSD HCT). Participants will receive up to 3 doses of t-DLI-X, and each dose will be increased as follows: dose 2 will be 3,000,000 CD3+ cells/kg for haploHCT and 10,000,000 CD3+ cells/kg for MSD HCT; dose 3 will be 10,000,000 CD3+ cells/kg for haploHCT and 30,000,000 CD3+ cells/kg for MSD HCT. |
Timeline
- Start date
- 2026-05-31
- Primary completion
- 2030-06-01
- Completion
- 2030-06-01
- First posted
- 2025-11-28
- Last updated
- 2026-04-07
Locations
1 site across 1 country: United States
Regulatory
- FDA-regulated drug study
Source: ClinicalTrials.gov record NCT07254793. Inclusion in this directory is not an endorsement.