48 completed, 9 unknown, 6 recruiting, 1 active not recruiting. 31 Not applicable, 10 Phase 3, 8 Phase 2, 2 Early Phase 1.
Follow Vitamin A Deficiency: new trials by email Literature Review of Vitamin A Deficiency trials Research Report on Vitamin A Deficiency
Tick up to 5 trials to compare them side by side (eligibility, arms, endpoints, adverse events) in a Literature Matrix.
| Trial | Phase | Status | Sponsor | Enrollment | Start | Updated |
|---|---|---|---|---|---|---|
| Vitamin A Supplementation and Breast Milk Vitamin A Levels in Mothers of Preterm Infants Oral multivitamin containing vitamin A - Premature, Preterm Infant Health | Not applicable | Not yet recruiting | University of Mississippi Medical Center | 20 | 2026-08-01 | 2026-07-30 |
| OPI-NXYDLD-303 Safety and Efficacy of Phentolamine Ophthalmic Solution in Keratorefractive Surgery Participants With Decreased Mesopic Visual Acuity 0.75% Phentolamine Ophthalmic Solution, Placebo - Vision Loss Night, Vision Disorders | Phase 3 | Recruiting | Opus Genetics, Inc | 580 | 2025-09-02 | 2026-10-14 |
| Effect of Consuming Vitamin A-fortified Sugar on Serum Retinol Levels in Children white sugar fortified with retinol, refined white sugar for culinary use - Deficiencies Micronutrient, Nutrition Disorders | Not applicable | Completed | Universidad del Valle, Colombia | 76 | 2025-07-25 | 2026-10-06 |
| Effect of Vitamin A Supplementation on Idiopathic Scoliosis Vitamin A, Nutritional Education - Vitamin A Deficiency, Idiopathic Scoliosis | Not applicable | Recruiting | Second Affiliated Hospital of Wenzhou Medical University | 140 | 2025-05-13 | 2026-05-15 |
| Investigating Brain Function in People With and Without Visual Snow Syndrome Using Adaptation to Visual Stimuli Visual Adaptation, Assessments and Questionnaires, Functional Magnetic Resonance Imaging (fMRI) - Visual Snow Syndrome, Migraine | Not applicable | Recruiting | University of Minnesota | 100 | 2025-04-11 | 2026-01-14 |
| Vitamin A Supplementation in Allogeneic Stem Cell Transplantation. Vitamin A, Placebo - Graft Vs Host Disease, Vitamin A Deficiency | Phase 2 | Recruiting | Children's Hospital Medical Center, Cincinnati | 190 | 2025-03-25 | 2026-08-24 |
| Validation and Simplification of the Retinol Isotope Dilution Technique in Burkinabe Schoolchildren Retinol isotope dilution technique - Vitamin A Deficiency, Inflammation | Recruiting | Institut de Recherche en Sciences de la Sante, Burkina Faso | 158 | 2024-11-21 | 2025-03-18 | |
| Safety and Efficacy of 0.75% Phentolamine Ophthalmic Solution in Subjects With Post-refractive Surgery Visual Disturbances phentolamine ophthalmic solution 0.75%, a non-selective alpha-1 and alpha-2 adrenergic antagonist, Placebo - Mesopic Vision, Night Vision Loss | Phase 3 | Completed | Opus Genetics, Inc | 200 | 2024-04-01 | 2026-10-26 |
| Impact of Food-to-Food Fortified Cereal Products on Diet Quality in Rural Niger Villages Vitamin A Deficiency, Iron-deficiency | Completed | Purdue University | 3600 | 2023-03-13 | 2023-07-11 | |
| Effect of Household Use of Multiple Micronutrient-fortified Bouillon on Micronutrient Status Among Women and Children in Two Districts in the Northern Region of Ghana Multiple micronutrient-fortified bouillon cube, Control bouillon cube (iodine-only) - Vitamin A Deficiency, Iron-deficiency | Not applicable | Completed | University of California, Davis | 2372 | 2023-01-16 | 2024-07-12 |
| Efficacy and Safety of Vitamin A Treatment for Children With Sepsis Vitamin A, Oil - Vitamin A Deficiency, Pediatric | Not applicable | Unknown | West China Hospital | 450 | 2022-11-01 | 2022-01-04 |
| Knowledge of Students About Vitamin A and Assessment of Eye Manifestations in Quranic Schools (Khalwai) Khartoum State, Sudan 2022 Vitamin A Deficiency, Night Blindness | Completed | University of Khartoum | 332 | 2022-11-01 | 2025-05-25 | |
| Impact of Food-to-Food Fortified Cereal Products on Diet Quality in Eldoret, Kenya Vitamin A Deficiency, Iron-deficiency | Completed | Purdue University | 1800 | 2022-10-20 | 2023-05-31 | |
| Vitamin A Status in Patients With Vocal Fold Leukoplakia Vitamin A, Vitamin A Deficiency | Active not recruiting | University of Wisconsin, Madison | 50 | 2022-06-29 | 2026-07-17 | |
| Senegal Market Study for Food-to-Food Fortified (F2F) Instant Porridge Flours Acceptability of food-to-food fortified (FtFF) instant porridge flours - Iron-deficiency, Vitamin A Deficiency | Completed | Purdue University | 1800 | 2022-01-27 | 2023-06-01 | |
| Comparison of Different Refraction Measurements in Adults Questionnaire, Eye examination - Vision Loss Night | Completed | Direction Centrale du Service de Santé des Armées | 17 | 2021-03-05 | 2022-09-13 | |
| Egg Intervention During Pregnancy in Indonesia Egg intervention - Weight Gain, Anemia, Iron Deficiency | Not applicable | Unknown | SEAMEO Regional Centre for Food and Nutrition | 702 | 2021-02-12 | 2024-07-03 |
| Iron and Vitamin A in School Children Intermittent placebo iron supplement, Intermittent iron supplement, Placebo Vitamin A - Anemia, Iron Deficiency, Vitamin A Deficiency | Not applicable | Completed | University Ghent | 504 | 2020-11-02 | 2023-03-03 |
| Nutritional Status and Bouillon Use in Northern Ghana N/A (observational study) - Iron Deficiency, Vitamin A Deficiency | Completed | University of California, Davis | 995 | 2020-10-19 | 2022-04-18 | |
| Retinol Status in Preterm Infants and Mothers Serum retinol and RBP levels were determined by enzyme-linked immunosorbent assay. - Vitamin A Deficiency | Not applicable | Completed | Ataturk University | 44 | 2020-06-01 | 2021-03-05 |
Showing 20 of 65. Sign in to see all of them.
Anemia, Iron-Deficiency (8) · Anemia (5) · Iron Deficiencies (5) · Breast Feeding (4) · Vitamin B 12 Deficiency (4) · Folic Acid Deficiency (3) · Inflammation (3) · Malnutrition (3) · Callosities (2) · Growth Disorders (2) · Hypervitaminosis A (2) · Infant Death (2) · Maternal Death (2) · Night Blindness (2)
Deficiency Diseases (65) · Nutritional and Metabolic Diseases (65) · Avitaminosis (64) · Nutrition Disorders (64) · Malnutrition (62) · Pathological Conditions, Signs and Symptoms (16) · Metabolic Diseases (14) · Iron Metabolism Disorders (13) · Hematologic Diseases (11) · Hemic and Lymphatic Diseases (11) · Pathologic Processes (10) · Anemia, Hypochromic (8) · Iron Deficiencies (8) · Infections (7) · Signs and Symptoms (7)
Vitamin A (16) · retinol palmitate (4) · Oils (2) · Surveys and Questionnaires (2) · Magnetic Resonance Imaging (1) · Nutrition Policy (1) · Observation (1) · Placental Lactogen (1) · Postpartum Period (1) · Vitamin E (1) · beta Carotene (1) · retinol acetate (1)
Johns Hopkins Bloomberg School of Public Health (5) · USDA, Western Human Nutrition Research Center (5) · University of California, Davis (4) · Purdue University (3) · Swiss Federal Institute of Technology (3) · University of Wisconsin, Madison (3) · Wageningen University (3) · London School of Hygiene and Tropical Medicine (2) · Newcastle University (2) · Opus Genetics, Inc (2) · Aga Khan University (1) · Ataturk University (1) · Centre for Food and Nutrition Research, Yaounde (1) · Children's Hospital Medical Center, Cincinnati (1) · Cornell University (1)
United States (15) · Bangladesh (7) · China (4) · Ethiopia (3) · Ghana (3) · United Kingdom (3) · Zambia (3) · Indonesia (2) · Kenya (2) · Nigeria (2) · Switzerland (2) · Thailand (2) · Austria (1) · Brazil (1) · Burkina Faso (1)
Betty J Burri, PhD (3) · Alfred Sommer, M.D. (2) · Alida Melse-Boonstra, PhD (2) · Amanda C Palmer, PhD (2) · Bruce R Hamaker, PhD (2) · Georg Lietz, PhD (2) · Marjorie Haskell, PhD (2) · Abby Metzler, M.D. (1) · Alain B Labrique, MSc (1) · Alain B. Labrique, MSc (1) · Alain Labrique, PhD (1) · Alida Melse, PhD (1) · Betty R Kirkwood (1)
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R01DC019357 (1), R01DK060021 (1), R01EY036005 (1)