Clinical trial Recruiting at 3 sites Phase 2 Interventional Ages 18 and up

Single high-dose vitamin A given with allogeneic stem cell transplant

Official title: A Randomized Double Blinded Trial of Vitamin A Supplementation in Allogeneic Stem Cell Transplantation.

Run by Children's Hospital Medical Center, Cincinnati · NCT06450925 · Data updated 2026-11-12

This study tests whether giving one large oral dose of vitamin A to adults having an allogeneic stem cell transplant can lower the chance of moderate-to-severe chronic graft-versus-host disease.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment190 (estimated)
SponsorChildren's Hospital Medical Center, Cincinnati
Academic / other
Locations3 sites (Tampa, Florida and 2 other locations)
StatusRecruiting
StartedMarch 25, 2025
Main results expectedAugust 2027
Study endsAugust 2029
Registry record updatedAugust 24, 2026
Trial IDNCT06450925 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (18+) scheduled for allogeneic stem cell transplant who are receiving PBSC grafts, can tolerate enteral dosing, have vitamin A below the age-based upper limit of normal, and meet specified liver function limits are ideal candidates.

Probably not a fit

Patients with active raised intracranial pressure, liver cirrhosis, current pregnancy, or those not receiving PBSC grafts are excluded and would not be expected to benefit from this intervention.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a randomized, double-blind Phase 2 trial comparing a single large oral dose of vitamin A to a placebo in adults undergoing allogeneic hematopoietic stem cell transplantation who receive peripheral blood stem cell grafts. The trial enrolls patients with acceptable liver tests and a vitamin A level below the age-based upper limit of normal and excludes those with raised intracranial pressure, liver cirrhosis, or pregnancy. Investigators will monitor for the development of moderate-to-severe chronic graft-versus-host disease, with particular attention to gastrointestinal GVHD, and will track safety and liver function after dosing. The design builds on preliminary data linking lower vitamin A levels to increased GI GVHD risk and tests whether supplementation at transplant can reduce that risk.

Why it matters

Potential benefit: If successful, a single dose of vitamin A could reduce the incidence and severity of chronic GVHD, especially GI complications, after allogeneic transplant.

How similar studies have gone: Observational and preliminary data have linked low vitamin A to higher GI GVHD risk, but randomized trials of high-dose vitamin A for GVHD prevention are limited, so this approach remains relatively untested in randomized settings.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Be 18 years of age or older
* Be scheduled for allogeneic stem cell transplant.
* Have a vitamin A level \< upper limit of normal for age.
* Be able to tolerate enteral vitamin dose administration.
* Have a total bilirubin level \< 1.5x ULN and an AST and/or ALT\< 3xULN for age
* Receiving PBSCs as stem cell graft

Exclusion Criteria:

* Ongoing raised intracranial pressure (see appendix D for definition of raised intracranial pressure)
* Liver cirrhosis (see appendix C for definition of liver cirrhosis)
* Patients will be excluded if they are currently pregnant.
* Patients will be excluded if they have a fish (not shellfish) allergy.

Where it's running

  • Moffitt Cancer Center
    Tampa, Florida, United States
    Recruiting
  • Roswell Park Comprehensive Cancer Center
    Buffalo, New York, United States
    Recruiting
  • The Ohio State University
    Columbus, Ohio, United States
    Recruiting

Study contacts

  • Principal investigator: Pooja Khandelwal, MD — Children's Hospital Medical Center, Cincinnati
  • Study coordinator: Celeste Dourson, MS, CCRP
  • Email: celeste.dourson@cchmc.org
  • Phone: 513-636-7679

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.