16 completed, 4 recruiting, 2 enrolling by invitation, 1 terminated. 12 Not applicable, 3 Phase 2, 3 Phase 4, 2 Phase 3, 1 Early Phase 1.
Follow Vitamin D Insufficiency: new trials by email Literature Review of Vitamin D Insufficiency trials Research Report on Vitamin D Insufficiency
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 |
|---|---|---|---|---|---|---|
| Supplementation of Cholecalciferol and Related Active Metabolites Through Bioenhancing Layer's Eggs Vitamin D3 bioenhanced eggs, 25(OH)D3 bioenhanced eggs - Healthy Adult Participants, Vitamin D Insufficiency | Not applicable | Recruiting | Cornell University | 60 | 2027-01-01 | 2026-10-05 |
| An Investigation of the Effect of Vitamin D Level During Frozen Embryo Transfer (FET) in IVF and Pregnancy Outcomes No Intervention: Observational Cohort - Vitamin D Insufficiency, In Vitro Fertilization and Embryo Transfer | Recruiting | Fakih IVF Fertility Center | 126 | 2026-06-01 | 2026-11-10 | |
| ALPCO 25(OH) Vitamin D CLIA Kit - Fresh Versus Frozen Serum and Plasma Stability Study ALPCO 25(OH) Vitamin D CLIA Kit - Vitamin D Deficiency, Vitamin D Insufficiency | Enrolling by invitation | American Laboratory Products Company | 80 | 2026-04-18 | 2026-05-04 | |
| Investigating the Impact of Vitamin D Biofortified Tomatoes on Serum Levels of 25(OH)D Precision Bred Provitamin D-rich Tomato Soup, Precision Bred Vitamin D-rich Tomato Soup, Wild-type (store-bought) Tomato Soup - Vitamin D Insufficiency | Not applicable | Enrolling by invitation | Quadram Institute Bioscience | 76 | 2025-09-01 | 2025-08-27 |
| 25(OH)-Vitamin D and Its Association With Structural and Functional Parameters in Hospitalized Patients With Neurological Diseases DELTIUS - Vitamin D Insufficiency | Not applicable | Recruiting | Dionyssiotis, Yannis, M.D. | 120 | 2025-09-01 | 2026-07-31 |
| Collegiate Athlete Study Iron and Vitamin D Deficiencies Correction - Iron Deficiency, Iron Deficiency Anemia (IDA) | Not applicable | Completed | Morehouse School of Medicine | 36 | 2024-08-19 | 2026-06-08 |
| Evaluating the Effect of SOLIUS UV Light Source in Improving Vitamin D Status UVB treatment, Sham comparator - Vitamin D Deficiency, Vitamin D Insufficiency | Not applicable | Completed | Boston University | 69 | 2022-02-23 | 2024-10-22 |
| Solius UV Light Source in Improving Serum Levels of 25-hydroxyvitamin D UVB treatment - Vitamin D Deficiency, Vitamin D Insufficiency | Not applicable | Completed | Boston University | 10 | 2021-08-24 | 2022-12-23 |
| Efficacy and Safety of Calcifediol vs Placebo in Subjects With Vitamin D Deficiency Calcifediol 75mcg, Calcifediol 100mcg, Calcifediol 125mcg - Vitamin D Deficiency, Vitamin D Insufficiency | Phase 2 / Phase 3 | Completed | Faes Farma, S.A. | 674 | 2020-12-23 | 2023-09-15 |
| Pharmacokinetics and Safety Study of CTAP101 Capsules in Japanese and Non-Japanese Healthy Subjects and Non-Japanese Healthy Subjects CTAP101 Capsules - Vitamin D Insufficiency, Secondary Hyperparathyroidism | Phase 1 | Completed | OPKO Health, Inc. | 67 | 2018-08-20 | 2019-09-30 |
| Repeated-dose Safety, Efficacy, Pharmacokinetic and Pharmacodynamic of CTAP101, Immediate-release Calcifediol, High-dose Cholecalciferol, and Paricalcitol Plus Low-dose Cholecalciferol in Patients With Secondary Hyperparathyroidism, Chronic Kidney Disease 3-4 and Vitamin D Insufficiency Calcifediol Oral Capsule, Calcifediol Oral Product, Cholecalciferol - Secondary Hyperparathyroidism Due to Renal Causes, Vitamin D Insufficiency | Phase 4 | Completed | OPKO Health, Inc. | 69 | 2018-06-08 | 2022-12-09 |
| Gene Expression, Metabolomic, Microbiome, and Calcium Metabolism in Response to Varied Vitamin D Dosages Vitamin D3 - Vitamin D Insufficiency | Not applicable | Completed | Boston University | 39 | 2017-12-01 | 2019-07-18 |
| Vitamin D to Improve Nutrition Prior to Bariatric Surgery and Investigate the Relationship With Negative Outcomes Vitamin D, Placebo, Standard of Care - Vitamin D Deficiency, Vitamin D Insufficiency | Not applicable | Terminated | Johns Hopkins University | 70 | 2017-01-01 | 2019-06-06 |
| The Effects of Serum Vitamin D and IVF Outcome Vitamin D Deficiency, Vitamin D Insufficiency | Completed | University of Birmingham | 504 | 2013-09-01 | 2016-10-25 | |
| Effect of Omega-3 Fatty Acid on Vitamin D Activation Omega-3 fatty acid ethylester 90, Olive oil, cholecalciferol - Hemodialysis Patients, Vitamin D Insufficiency | Phase 4 | Completed | Dong-A University | 17 | 2012-05-01 | 2015-03-10 |
| D Vitamin Intervention in VA Placebo, 50K vitamin D2 - Impaired Fasting Glucose, Impaired Glucose Tolerance | Not applicable | Completed | US Department of Veterans Affairs | 205 | 2011-05-01 | 2015-03-06 |
| Safety/Efficacy Study of CTAP101 in Chronic Kidney Disease Subjects With Secondary Hyperparathyroidism (SHPT) Cohort 1 CTAP101 Capsules- 60µg, Cohort 1 CTAP101 Capsules - 90µg, Cohort 1 Matching Sugar Capsule - Chronic Kidney Disease, Secondary Hyperparathyroidism | Phase 2 / Phase 3 | Completed | OPKO Health, Inc. | 78 | 2010-10-01 | 2016-08-25 |
| Vitamin D Homeostasis in Sarcoidosis Ergocalciferol, Placebo, Calcium Citrate with Vitamin D2 - Sarcoidosis, Vitamin D Insufficiency | Phase 4 | Recruiting | University of Texas Southwestern Medical Center | 90 | 2010-07-01 | 2026-09-03 |
| Vitamin D Supplementation and Physical Function in Older Adults calcium, Vitamin D plus calcium - Physical Function, Vitamin D Insufficiency | Early Phase 1 | Completed | Wake Forest University Health Sciences | 16 | 2010-01-01 | 2018-08-17 |
| Metabolic Effects of Vitamin D in Patients With Type 2 Diabetes Cholecalciferol - Type 2 Diabetes, Vitamin D Insufficiency | Phase 2 | Completed | University of Aarhus | 16 | 2008-12-01 | 2010-07-12 |
Showing 20 of 23. Sign in to see all of them.
Vitamin D Deficiency (11) · Hyperparathyroidism, Secondary (2) · Anemia, Iron-Deficiency (1) · Breast Feeding (1) · Diabetes Mellitus, Type 2 (1) · Glucose Intolerance (1) · Hyperparathyroidism (1) · Infertility (1) · Insulin Resistance (1) · Iron Deficiencies (1) · Kidney Diseases (1) · Kidney Failure, Chronic (1) · Osteoporosis (1) · Pain (1) · Parathyroid Diseases (1)
Nutritional and Metabolic Diseases (14) · Avitaminosis (11) · Deficiency Diseases (11) · Malnutrition (11) · Nutrition Disorders (11) · Metabolic Diseases (4) · Endocrine System Diseases (3) · Glucose Metabolism Disorders (2) · Hemic and Lymphatic Diseases (2) · Pathological Conditions, Signs and Symptoms (2) · Urogenital Diseases (2) · Anemia (1) · Anemia, Hypochromic (1) · Atrophy (1) · Behavior (1)
Cholecalciferol (6) · Calcifediol (2) · Calcium (2) · Vitamin D (2) · Calcium Citrate (1) · Ergocalciferols (1) · Iron (1) · Olive Oil (1) · Omacor (1) · Standard of Care (1) · paricalcitol (1)
Boston University (3) · OPKO Health, Inc. (3) · American Laboratory Products Company (1) · Cornell University (1) · Dionyssiotis, Yannis, M.D. (1) · Dong-A University (1) · Faes Farma, S.A. (1) · Fakih IVF Fertility Center (1) · Johns Hopkins University (1) · Morehouse School of Medicine (1) · Quadram Institute Bioscience (1) · US Department of Veterans Affairs (1) · University College Cork (1) · University of Aarhus (1) · University of Birmingham (1)
United States (15) · United Kingdom (2) · Bulgaria (1) · Czechia (1) · Denmark (1) · France (1) · Greece (1) · Ireland (1) · Italy (1) · Serbia (1) · Slovakia (1) · South Korea (1) · Spain (1) · United Arab Emirates (1)
Altelisha Taylor, MD, MPH (1) · Connie Hsia, MD (1) · Denise K Houston, PhD (1) · Dr. Lamiya Mohiyiddeen, MD, FRCOG (1) · Dr. Michael Fakih, MD (1) · Dr. Yasmin Sajjad, MD, FRCOG, DOWH (1) · Elena I. Barengolts, MD (1) · Jeremy Mussallem (1) · Joel Melnick, MD (1) · Kimberley E Steele, MD, PhD (1) · Lotte Oeskov, MD (1) · Mairead E Kiely, PhD (1) · Martin Warren, PhD (1) · Michael A. Schweitzer, MD (1) · Michael F Holick, MD PhD (1)
PMID 15225842, PMID 18653426, PMID 22586483, PMID 24157819, PMID 24753153, PMID 25044176, PMID 25636157, PMID 25716637, PMID 26174313, PMID 26209747, PMID 27053725, PMID 29160835, PMID 30065237, PMID 31307482, PMID 32820241
M01RR000051 (1), R01AG029364 (1), R25MD007589 (1)