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Tundra lists 5 Vitamin A Deficiency clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT07335991
Effect of Vitamin A Supplementation on Idiopathic Scoliosis
This study aims to investigate whether vitamin A supplementation can influence spinal curve magnitude in idiopathic scoliosis children and potentially prevent its de novo development.
Gender: All
Ages: 6 Years - 15 Years
Updated: 2026-01-13
1 state
NCT05323292
Vitamin A Status in Patients With Vocal Fold Leukoplakia
This study will determine systemic vitamin A status and lesion histopathology of participants with vocal fold hyperkeratosis resulting in clinical leukoplakia.
Gender: All
Ages: 18 Years - Any
Updated: 2025-12-17
1 state
NCT06450925
Vitamin A Supplementation in Allogeneic Stem Cell Transplantation.
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.
Gender: All
Updated: 2025-08-12
3 states
NCT06759493
Validation and Simplification of the Retinol Isotope Dilution Technique in Burkinabe Schoolchildren
Two cross-sectional, repeated-pass, community-based studies will be carried out during the school year. The first study will be conducted from November to December. This period corresponds to the end of the rainy season and the end of the mango season, which is one of the main sources of vitamin A in the Orodara region. The second survey will be carried out 5 to 6 months (April-May of the following year) after data collection for the first study, corresponding to the mango season. The same schoolchildren recruited during the first phase of data collection (5 to 6 months earlier) will be the participants in the second study. The interest of this study is to use nuclear techniques to implement a strategy for the precise and accurate determination of Vitamin A status in order to reinforce existing Vitamin A interventions and policies.
Gender: All
Ages: 7 Years - 12 Years
Updated: 2025-03-18
1 state
NCT04694235
Egg Intervention During Pregnancy in Indonesia
The study consists of two arms: 1) intervention group using eggs as supplementary food given from 2nd trimester of pregnancy to birth, and 2) observational group of pregnant mothers. it aims to assess the effectiveness of improving dietary quality during pregnancy on the epigenetic and stunting related outcomes (growth and development) in infants, who will be followed up until 24 months old
Gender: FEMALE
Ages: 18 Years - 40 Years
Updated: 2024-07-03
1 state