Clinical trials: Vitamin D Supplementation
Vitamin D Deficiency, Pre-Eclampsia
Effect of Vitamin D3 Supplementation in Pregnancy on Risk of Pre-eclampsia
Vitamin D deficient pregnant ladies were selected and randomized into 2 groups for routine daily dose of multivitamin (400IU vitamin D3) versus maximum safest treatment daily dose (4000IU vitamin D3).
- Trial name
- NCT03101150
- Testing
- 400 IU Vitamin D3, 4000 IU Vitamin D3
- Volunteers
- 179 people, healthy volunteers welcome
- Sponsor
- King Fahad Medical City
Vitamin D Deficiency, Thoracic Surgery
Prevention of Vitamin D Deficiency Following Pediatric CHD Surgery: a Phase II Dose Evaluation Randomized Controlled Trial Comparing Usual Care With a High Dose Pre-operative Supplementation Regimen Based on the Institute of Medicine Daily Upper Tolerable Intake Level
Our research group has shown that almost all children with congenital heart disease (CHD) are vitamin D deficient following heart surgery.
- Conditions
- Vitamin D Deficiency, Thoracic Surgery, Pediatric Disorders, Heart Defects, Congenital
- Trial name
- HICCUPS 2 (NCT01838447)
- Testing
- Cholecalciferol
- Where
- Canada
- Volunteers
- 46 people
- Sponsor
- Children's Hospital of Eastern Ontario
Hypovitaminosis D
Cholecalciferol Supplementation for Sepsis in the ICU
Sepsis in a clinical entity that occurs in patients with serious infections. Though the severity of illness may vary, every year, approximately 1.6 million Americans are treated for sepsis.
- Trial name
- CSI (NCT01896544)
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Massachusetts General Hospital
Type 2 Diabetes
Study of Vitamin D and Omega-3 Supplementation for Preventing Diabetes
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
- NCT01633177
- Testing
- Vitamin D3, Omega-3 fatty acid (fish oil)
- Where
- United States
- Volunteers
- 22,220 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Asthma
Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART)
Vitamin D supplementation given to pregnant women will prevent asthma in their offspring and children.
- Trial name
- VDAART (NCT00920621)
- Testing
- Vitamin D 3 cholecalciferol, Vitamin D3
- Where
- 3 sites in United States
- Volunteers
- 876 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Polycystic Ovary Syndrome, Vitamin D Deficiency
The Effects of Vitamin D on Angiogenic Factors in Women With Polycystic Ovary Syndrome
Polycystic Ovary Syndrome (PCOS) affects 5 to 10% of women of reproductive age. It is characterized by a cluster of hyperandrogenism, hyperinsulinemia, menstrual dysfunction, hirsutism and infertility.
- Trial name
- NCT02460380
- Testing
- Vitamin D3
- Volunteers
- 93 people
- Sponsor
- Maimonides Medical Center
Obesity, Insulin Resistance
Effect of Vitamin D Supplementation on Muscle Mass and Function
The study was designed to assess the effects of vitamin D supplementation during exercise training on body composition, muscle function, and glucose tolerance.
- Conditions
- Obesity, Insulin Resistance, Inflammation
- Trial name
- NCT01199926
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Purdue University
Vitamin D Deficiency, Pregnancy
Vitamin D Status of Pregnant Women and Their Children in Eau Claire, South Carolina
Science News (October 2004) called vitamin D deficiency a "silent epidemic" in America, with no group unaffected. Using new guidelines of optimal vitamin D levels, more than 90% of African American women now suffer from vitamin D…
- Trial name
- NCT00412087
- Testing
- cholecalciferol (vitamin D3), cholecalciferol
- Where
- United States
- Volunteers
- 564 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Type 1 Diabetes Mellitus
Prevalence of Vitamin D Deficiency in Type 1 Diabetes Mellitus and Effect of Supplementation on Insulin Requirements
Our objective is to demonstrate that providing supplemental vitamin D to children with new onset DM will significantly decrease the levels of HbA1c and insulin requirement by the following methods. 1.
- Trial name
- NCT01029392
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 75 people
- Sponsor
- Corewell Health East
Insulin Sensitivity
Effect of Vitamin D Replacement on Insulin Sensitivity
Healthy subjects with low Vitamin D levels will be randomly assigned to either Vitamin D replacement or placebo for a period of 8 weeks.
- Trial name
- NCT01268111
- Testing
- Ergocalciferols
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Texas Tech University Health Sciences Center
Vitamin D Deficiency, Hypertension
Vitamin D Deficiency in Patients With Hypertension
This study will evaluate the effects of Vitamin D replacement and the effects of an approved medication for hypertension, aliskiren (Tekturna), in patients with high blood pressure who have low levels of vitamin D in their blood.
- Trial name
- NCT00974922
- Testing
- Aliskiren, Cholecalciferol
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- UConn Health
Vitamin D Supplementation
Vitamin D Supplementation in Healthy Adolescents
This double blind, randomized controlled trial compares two supplemental doses of vitamin D in health adolescents.
- Trial name
- NCT01126671
- Testing
- Supplemental Vitamin D
- Where
- United States
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Boston Children's Hospital
Hypovitaminosis D
The Effect of Hypovitaminosis D and Vitamin D Supplementation on Fracture Nonunion Rates
The purpose of the study is to determine whether vitamin D supplementation in patients with hypovitaminosis D can decrease nonunion (failure to heal) incidence in patients with fractures of the humerus, femur, or tibia.
- Trial name
- VitD (NCT01691833)
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 113 people
- Sponsor
- Wake Forest University Health Sciences
Prostate Cancer
Vitamin D and Soy Supplements in Treating Patients With Recurrent Prostate Cancer
RATIONALE: Vitamin D and soy extract may be effective in lowering prostate-specific antigen (PSA) levels in patients with recurrent prostate cancer that has not responded to previous treatment.
- Trial name
- NCT00499408
- Testing
- Vitamin D, soy
- Where
- United States
- Volunteers
- 26 people
- Sponsor
- Wake Forest University Health Sciences
Type 1 Diabetes
Effect of Vitamin D on the Honeymoon Period in Children and Adolescents With Type 1 Diabetes
The purpose of this study is to determine if supplementation with Vitamin D in children and adolescents with newly diagnosed type 1 diabetes increases the number of patients who enter the honeymoon period.
- Trial name
- NCT01724190
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 38 people
- Sponsor
- Nationwide Children's Hospital
Polycystic Ovary Syndrome
Vitamin D for the Treatment of Women With Polycystic Ovary Syndrome (PCOS)
The purpose of this study is to determine if vitamin D will improve insulin resistance, inflammation, and overall well-being in women with PCOS.
- Trial name
- NCT00907153
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 36 people
- Sponsor
- Milton S. Hershey Medical Center
Relapsing-Remitting Multiple Sclerosis
Supplementation of VigantOL® Oil Versus Placebo as Add-on in Patients With Relapsing Remitting Multiple Sclerosis Receiving Rebif® Treatment
The drug being tested is called VigantOL® oil - a very effective form of Vitamin D hormone supplement (cholecalciferol). Low levels of Vitamin D have been described to be associated with a higher risk of developing Multiple…
- Trial name
- SOLAR (NCT01285401)
- Testing
- VigantOL oil plus interferon beta-1a (Rebif), Interferon beta-1a (Rebif®) alone
- Where
- 38 sites in Austria, Denmark and 10 more
- Volunteers
- 260 people
- Sponsor
- Merck KGaA, Darmstadt, Germany
Inflammatory Bowel Disease
Vitamin D Supplementation in Crohn's Patients
The purpose of this study is to determine the effect of vitamin D supplementation in Crohn's disease patients. Patients will be evaluated for increases in circulating vitamin D levels and effects on health benefits including…
- Trial name
- CTSA (NCT00742781)
- Testing
- Vitamin D
- Where
- 2 sites in United States
- Volunteers
- 21 people
- Sponsor
- Penn State University
Pancreatitis, Chronic
Prospective Study of Efficacy of Intra-muscular Vitamin D3 in Tropical Calcific Pancreatitis
The purpose of this study is to determine the efficacy of 2 different doses of intramuscular (IM) vitamin D3 as compared to an oral replacement dose in normalizing vitamin D levels in the blood of patients with tropical calcific…
- Trial name
- NCT00956839
- Testing
- Vitamin D3 (Cholecalciferol)
- Where
- India
- Volunteers
- 40 people
- Sponsor
- Sanjay Gandhi Postgraduate Institute of Medical Sciences
Calcium and Vitamin D Deficiencies
Calcichew D3 Preference Study in Participants Eligible for Calcium and Vitamin D Supplementation.
The purpose of this study is to compare the preference of Calcichew D3 500/400 (containing 500 mg calcium and 400 IU of vitamin D) with Adcal-D3 600/400 (containing 600 mg of calcium and 400 IU of vitamin D) in Test Group 1, and…
- Trial name
- NCT02457247
- Testing
- Calcichew D3, Adcal-D3, Kalcipos-D
- Where
- 9 sites in Germany, United Kingdom
- Volunteers
- 276 people
- Sponsor
- Takeda