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NCT07254793RecruitingPhase 1

Prophylactic 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 Leukemia Relapse After Allogeneic Hematopoietic Cell Transplantation

Source: ClinicalTrials.gov · Last updated 29 Oct 2026

Brief summary (registry, in English)

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. We hypothesize that pro-DLI-X 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).

Status (registry)
Recruiting
Phase (registry)
Phase 1
Study type
Interventional
Enrollment
180 (estimated)
First submitted
19 Nov 2025
Start date
26 Oct 2026
Primary completion date
1 Jun 2030
Lead sponsor
University of Arizona
NCT number
NCT07254793

What you commit to

  • Study type: Interventional · Phase 1
  • Planned participants: 180
  • From 26 Oct 2026 to the primary completion date, 1 Jun 2030
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Criteria the registry did not label

  • DLI Recipient Inclusion Criteria:
  • Provision of signed and dated informed consent form
  • Stated willingness to comply with all study procedures and availability for the duration of the study
  • Male or female, aged 0-65 years
  • Diagnosis of acute leukemia (lymphoid, myeloid or undifferentiated) myelodysplastic syndrome (MDS), chronic myeloid leukemia (CML) or non-Hodgkin's lymphoma (NHL)
  • Undergoing myeloablative or reduced intensity matched sibling donor (MSD) HCT or haploidentical HCT
  • Have a locally available healthy matched or haploidentical (≥5/10 HLA antigen matched) related donor between 12 and 50 years of age, consented and able to perform the exercise sessions. (see donor inclusion criteria)
    • DLI Donor Inclusion Criteria:
  • Provision of signed and dated informed consent form
  • Must have already met transplant donor eligibility as a matched sibling donor, or HLA-haploidentical relative of the patient, including biological parents, siblings, or children, half-siblings, cousins or aunts and uncles
  • Weight is greater than 30 kg
  • Age 12 and 50 years
  • Ability to undergo phlebotomy
  • Be able complete the fitness evaluation to determine VO2max and peak cycling power. Following successful completion of the donor fitness evaluation, the patients willing to participate in the randomized trial will be enrolled
  • Donor's recipient has met eligibility requirements and agreed to participate
    • DLI Recipient Exclusion Criteria:
  • Acute grade II-IV aGvHD or moderate/severe chronic GvHD at time of scheduled DLI.
  • Requiring immunosuppression therapy for treatment of GvHD.
  • Co-morbidities: AST/ALT greater than 5 x ULN; Bilirubin greater than 2 x ULN; Creatinine greater than 2 x ULN for age or creatinine clearance/GFR \<40 ml/min/1.73m2; Pulmonary function: DLCO less than 40% of normal or O2 Sat less than 92%; Cardiac: left ventricular ejection fraction less than 35%; active infection; HIV positive; Karnofsky score (adults) less than 60% or Lansky score less than 50% (pediatrics)
  • Uncontrolled or severe bacterial, fungal or viral infection.
  • Positive serum or urine pregnancy test for girls post menarche or women of childbearing age.
  • Severe psychiatric illness or mental deficiency making compliance to treatment unlikely and/or and/or would preclude informed consent according to IRB requirements for the study.
  • Any reason, at the investigator's discretion, that the participation of the patient in this protocol would not be in patient's best interest, or where the patient would be unable to adhere to the study requirements.
    • DLI Donor Exclusion Criteria:
  • Unable to perform graded exercise test
  • Cardiac or pulmonary disease/condition that would restrict exercise
  • Positive anti-donor HLA antibody
  • Pregnant or lactating
  • Active infection
  • Severe psychiatric illness or mental deficiency making compliance with donation unlikely and/or would preclude informed consent according to IRB requirements for the study.

Age in the registry: - to 65 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
The University of Arizona Cancer Center
Coordinator of this site? Confirm its status
TucsonUnited StatesRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.