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Vitamin A Supplementation in Allogeneic Stem Cell Transplantation.

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

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06450925
Enrollment
190
Registered
2024-06-10
Start date
2025-03-25
Completion date
2029-08-01
Last updated
2026-08-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Graft Vs Host Disease, Vitamin A Deficiency, Vitamin D Deficiency

Brief summary

The investigators hypothesize that single oral high dose supplementation with vitamin A will reduce the incidence of moderate-severe chronic graft-versus-host disease (GVHD) compared with placebo.

Detailed description

Hematopoietic stem cell transplantation (HSCT) is an effective treatment strategy for many malignancies, marrow failure syndromes, and immune deficiencies in children, adolescents, and adults. Vitamin A and its derivatives regulate growth and differentiation of intestinal cells, and vitamin A deficiency is associated with increased susceptibility to infection in both human and animal models. The investigators' preliminary data suggest lower vitamin A levels were associated with an increased incidence of gastrointestinal graft versus host disease (GI GVHD) in patients undergoing HSCT. This study is a randomized double blinded comparison of vitamin A supplementation comparing a single large dose of vitamin A with a placebo.

Interventions

DRUGVitamin A

Enrolled subjects will receive one observed oral vitamin A dose, prior to their HSCT, in the outpatient clinic or inpatient Bone Marrow Transplant (BMT) floor.

OTHERPlacebo

Placebo pills containing microcrystalline cellulose will be dispensed in patients who are randomized to the placebo arm.

Sponsors

Children's Hospital Medical Center, Cincinnati
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of moderate-severe chronic graft versus host disease (GVHD)1 year after transplantIncidence of moderate-severe chronic GVHD

Secondary

MeasureTime frameDescription
Incidence of acute gastrointestinal graft versus host disease (GI GVHD)2 years after transplantIncidence of acute GI GVHD
Incidence of relapse2 years after transplantIncidence of relapse
Overall survival.2 years after transplantOverall survival.

Countries

United States

Contacts

CONTACTCeleste Dourson, MS, CCRP
celeste.dourson@cchmc.org513-636-7679
PRINCIPAL_INVESTIGATORPooja Khandelwal, MD

Children's Hospital Medical Center, Cincinnati

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 25, 2026