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
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 190 (estimated) |
| Sponsor | Children's Hospital Medical Center, Cincinnati Academic / other |
| Locations | 3 sites (Tampa, Florida and 2 other locations) |
| Status | Recruiting |
| Started | March 25, 2025 |
| Main results expected | August 2027 |
| Study ends | August 2029 |
| Registry record updated | August 24, 2026 |
| Trial ID | NCT06450925 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
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.