Clinical trials: Vitamin D
Hypertension
Vitamin D and Omega-3 Hypertension Trial (VITAL Hypertension)
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is an ongoing randomized clinical trial in 25,875 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids…
- Trial name
- NCT01653678
- Testing
- Vitamin D-3 (cholecalciferol), 2000 IU, Omega-3 fatty acids (fish oil)
- Where
- United States
- Volunteers
- 25,875 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Osteoporosis, Osteoporosis, Postmenopausal
Romosozumab Use to Build Skeletal Integrity
The purpose of this study is to find out if one year of romosozumab (Evenity®), a monthly injection given in the arm under the skin, prior to an infusion of zoledronic acid Reclast®, works to treat bone loss and prevent it from…
- Conditions
- Osteoporosis, Osteoporosis, Postmenopausal, Osteoporosis Fracture
- Trial name
- RUBI (NCT05058976)
- Testing
- Romosozumab, Zoledronic acid, Calcium and Vitamin D
- Where
- United States
- Volunteers
- 184 people
- Sponsor
- Susan L. Greenspan
Metabolic Syndrome, Obesity
Vitamin D-related Genes and Metabolic Disorders
The link between metabolic disturbances and vitamin D receptor (VDR) and MEGALIN (or LRP2) gene polymorphisms remains unclear, particularly among African-American adults.
- Conditions
- Metabolic Syndrome, Obesity, Central Obesity
- Trial name
- NCT03279432
- Volunteers
- 1,021 people, healthy volunteers welcome
- Sponsor
- National Institute on Aging (NIA)
Hypocalcemia, Thyroid Diseases
Does Preoperative Calcium and Calcitriol Decrease Rates of Post Thyroidectomy Hypocalcemia?
The investigators are performing this study to determine if supplementation with calcium and calcitriol (vitamin D) before surgery decreases the rate of hypocalcemia (low calcium) after surgery.
- Trial name
- NCT03869398
- Testing
- Tums, Calcitriol
- Where
- United States
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- Lahey Clinic
Malaria, Malaria in Pregnancy
Prevention of Intrauterine Growth Retardation in Burkina Faso: the Malaria Component
Our objective was to investigate the importance of malaria infection/disease during pregnancy and more particularly during the first trimester; we also looked at the maternal-foetal interactions and their influence on the…
- Trial name
- NCT00680732
- Testing
- Multiple micronutrients supplements (MMS), Iron and folic acid (IFA), Chloroquine (CQ)
- Where
- Burkina Faso
- Volunteers
- 1,370 people
- Sponsor
- Institute of Tropical Medicine, Belgium
Allergic Rhinitis Due to Grass Pollen
Intralymphatic Immunotherapy Enhanced by Vitamin-D, a Randomized Placebo-controlled Trial and Comparison With SLIT
A national, multicenter, randmised double blind study with parallell arms. 360 patients with grass induced allergic rhinitis will be open randomised 1:2 to 3 years Grazax sublingual immunotherapy or 3 intralymphatic injections…
- Trial name
- ILIT vs SLIT (NCT06061848)
- Testing
- SLIT Grazax ALK Nordic 75 000 SQ-T, ILIT + Vitamin D
- Where
- 3 sites in Sweden
- Volunteers
- 360 people
- Sponsor
- Lars Olaf Cardell
Diabetes Mellitus Type 2 (T2DM)
Efect Supplementation Vitamin D in Diabetes Mellitus Type 2
This is double blind randomized controlled trial study using 92 subject with diabetes mellitus type 2divided into 2 group, one group as control and other group as vitamin D group.
- Trial name
- NCT07019415
- Where
- Indonesia
- Volunteers
- 92 people
- Sponsor
- Trisakti University
Vitamin D Deficiency, Sickle Cell Disease
Vitamin D Status in Children With Sickle Cell Disease Living in Lyon, France
Vitamin D deficiency may be under-diagnosed in sickle cell disease French children. Therefore, the investigator need an epidemiologic study about the prevalence of vitamin D deficiency in this specific population.
- Trial name
- EVADDREP (NCT04694976)
- Testing
- 25-OH Vitamin D measure
- Where
- France
- Volunteers
- 130 people
- Sponsor
- Hospices Civils de Lyon
Osteoporosis
Diagnosis of Decreased Bone Density by Dental Cone Beam Computed Tomography
The purpose of this study is to elucidate the role of Dental Cone Beam Computed Tomography (CBCT) in assessment of bone density.
- Trial name
- NCT02303340
- Testing
- Dual Energy X-ray Absorptiometry
- Where
- Israel
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Soroka University Medical Center
Uterine Fibroids (Leiomyoma)
FATIMA Trial: EGCG and Vitamin D3 for Prevention of Fibroid Recurrence
The aim of this randomized controlled clinical trial is to evaluate the efficacy of green tea (EGCG) and vitamin D3 supplementation in preventing uterine fibroid recurrence following fibroid removal.
- Trial name
- FATIMA (NCT07647198)
- Testing
- Vitamin D and Green Tea
- Where
- United Arab Emirates
- Volunteers
- 240 people
- Sponsor
- Sheikh Shakhbout Medical City
Psychiatric Hospitalization
Diet and Aggression: Reducing Aggression Among Chronic Psychiatric Inpatients Through Dietary Supplementation
The overall goal of this study is to investigate whether the daily administration of multivitamins, minerals and n-3 fatty acids will reduce aggression in long-term psychiatric inpatients and will thereby reduce costs of care.
- Trial name
- NCT02498106
- Testing
- Orthica Soft Multi Mini and Orthica Fish EPA Mini
- Where
- 6 sites in Netherlands
- Volunteers
- 176 people
- Sponsor
- Leiden University Medical Center
Nutrition Assessment
A Clinical Study to Evaluate the Efficacy of a Nutritional Supplement to Improve Carotenoid Content as Measured by a Non-invasive Hyperspectral Absorption Device
The goal of this clinical trial is to evaluate a nutritional supplement in an otherwise healthy adult population. The main questions it aims to answer are: Do antioxidant carotenoid levels increase in after supplementation as…
- Trial name
- NCT07380438
- Testing
- LifePak Optimum nutritional supplement
- Where
- South Korea
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Pharmanex
Psoriasis
Efficacy and Safety Study of CD 2027 Spray in Subjects With Plaque-type Psoriasis
This was a multicenter, randomized, vehicle-controlled, double-blind parallel group study to evaluate the efficacy and safety of CD 2027 Oily Spray applied twice daily for 8 weeks in participants with plaque-type psoriasis.
- Trial name
- NCT00763555
- Testing
- CD 2027, Calcitriol Vehicle
- Where
- 6 sites in United States, Canada
- Volunteers
- 88 people
- Sponsor
- Galderma R&D
Thyroid Eye Disease, TED, Graves Ophthalmopathy
Statin and Vitamin D Treatment in Patients With Thyroid Eye Disease
The goal of this clinical trial is to learn whether statin therapy and vitamin D supplementation can modify disease activity in patients with active thyroid eye disease.
- Trial name
- NCT07400757
- Testing
- Atorvastatin (Lipitor), Vitamin D
- Where
- Taiwan
- Volunteers
- 120 people
- Sponsor
- Taipei Veterans General Hospital, Taiwan
Iron Deficiency, Iron Deficiency Anemia (IDA)
Collegiate Athlete Study
The purpose of this study is to determine what percentage of Black collegiate athletes have low energy availability. It will also determine the percentage of Black collegiate athletes who have iron deficiency, suboptimal or low…
- Conditions
- Iron Deficiency, Iron Deficiency Anemia (IDA), Vitamin D Deficiency, Vitamin D Insufficiency
- Trial name
- NCT07631312
- Testing
- Iron and Vitamin D Deficiencies Correction
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Morehouse School of Medicine
Aging
Nutraceutical Effects on Long-Term Memory
Interventions to improve the cognitive health of older adults are of critical importance. In the current protocol, ithe investigators conducted a short-term (two months) randomized clinical trial to examine the influence of the…
- Trial name
- NCT01963767
- Testing
- NT-020
- Where
- United States
- Volunteers
- 139 people, healthy volunteers welcome
- Sponsor
- University of South Florida
Vitamin D Deficiency
Vitamin D Supplementation in Children
Prevalence of vitamin D deficiency in children in the northern country during winter season is very high (up to 90%). Vitamin D supplementation at a dose 600 -1000 IU/d is recommended in Polish children from September till April.
- Trial name
- MeltD (NCT03402698)
- Testing
- cholecalciferol
- Where
- Poland
- Volunteers
- 73 people, healthy volunteers welcome
- Sponsor
- Children's Memorial Health Institute, Poland
Muscle Function, Muscle Soreness
Vitamin D2, Muscle Damage, NASCAR Pitcrew
Hypothesis: Six weeks of supplementation with vitamin D (4000 IU/day) using Dole's Vitamin D Portobello Mushroom Powder will increase winter serum vitamin D levels, and improve muscle function and strength, and innate immunity…
- Conditions
- Muscle Function, Muscle Soreness, Vitamin D Status
- Trial name
- NCT01825616
- Testing
- Vitamin D2 mushroom powder
- Where
- 3 sites in United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Appalachian State University
Size of the Uterine Fibroids
Effect of Vitamin D on the Size of Fibroids in Women With Vitamin D Deficiency
Vitamin D supplementation in patients with uterine fibroids who present hypovitaminosis D to re-establish their normal serum values could stabilize the size of the uterine fibroids and thus prevent their growth or reduce their…
- Trial name
- NCT03991078
- Where
- Spain
- Volunteers
- 15 people
- Sponsor
- Fundación IVI
Rheumatoid Arthritis (RA)
Vitamin d Level and it's Association With Disease Activity in Egyptian Rheumatoid Arthritis Patients
Vitamin D level and its association with disease activity in Egyptian Rheumatoid arthritis (RA) patients
- Trial name
- Vitamind (NCT05486715)
- Testing
- Vit D
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Mariam Samir Farg