Clinical trials: Vitamin D Supplementation
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
Vitamin D Deficiency
Personalized Vitamin D Supplementation in European and African Americans
The proposed study is a randomized, double-blind, controlled, multi-center clinical trial of six months of daily oral vitamin D3 (cholecalciferol).
- Trial name
- NCT02362269
- Testing
- Vitamin D
- Where
- 2 sites in United States
- Volunteers
- 169 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
HIV Infections
Vitamin D Supplementation in HIV Youth
The purpose of this study is to determine the correct dose of Vitamin D to give to prevent HIV related complications.
- Trial name
- NCT01523496
- Testing
- Vitamin D control dose, Vitamin D supplementation-
- Where
- 2 sites in United States
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- University Hospitals Cleveland Medical Center
Obesity
Effect of Vitamin D3 Supplementation on Insulin Resistance and Cardiovascular Risk Factors in Obese Adolescents
The prevalence of obesity has reached epidemic proportions nationally as well as internationally. Currently, 16 % of American adolescents are obese.
- Trial name
- NCT00858247
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
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
Healthy Participants
Influenza Virus Vaccine Plus Vitamin A and D Supplements for Prevention of Respiratory Virus Infections in Children
Children are particularly vulnerable to respiratory virus infections, especially influenza. Vitamin A \& D deficiencies are associated with vulnerability to infectious diseases of the respiratory tract.
- Trial name
- NCT02649192
- Testing
- Influenza virus vaccine, Vitamins A and D
- Where
- United States
- Volunteers
- 87 people, healthy volunteers welcome
- Sponsor
- St. Jude Children's Research Hospital
Type 1 Diabetes Mellitus
Omega-3 and Vitamin D Supplements in Childhood T1D
The study was conducted in 64 patients with T1D of which 26 had the onset in 2017, and 38 in 2016, 2015 and 2014. All received vitamin D 1000 IU /day since disease's onset.
- Trial name
- NCT03911843
- Testing
- omega-3 supplementation, Vitamin D supplementation
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Azienda Ospedaliero Universitaria Maggiore della Carita
Obesity, Endothelial Dysfunction
Effect of Vitamin D Supplementation on Endothelial Function in Obese Adolescents
Vitamin D deficiency has been linked to endothelial dysfunction in adults. Obese adolescents have a high prevalence of Vitamin D deficiency as well as evidence of endothelial dysfunction.
- Conditions
- Obesity, Endothelial Dysfunction, Vitamin D Deficiency
- Trial name
- NCT01746264
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Obesity
Effect of Vitamin D Supplementation on Inflammation and Cardiometabolic Risk Factors in Obese Adolescents
Large studies of children show that over half of the children in the United States of America do not have enough vitamin D stored in their bodies.
- Trial name
- NCT01217840
- Testing
- Drisdol (Ergocalciferol) Vitamin D2
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Stanford University
Vitamin D Deficiency, Nutritional Deficiency
Mothers' Own Milk Optimization for Preterm Infants Project (MoMO PIP) Pilot Study
The overall goal of this study is to assess maternal vitamin D status along with diet, and milk composition, and in turn, to evaluate if infant vitamin D status can be improved with increased maternal supplementation and diet…
- Trial name
- MoMO PIP (NCT04629534)
- Testing
- High dose Cholecalciferol, Cholecalciferol
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- Medical University of South Carolina
Paget's Disease of the Bone, Hypocalcemia
Impact on Reducing the Incidence of Low Serum Calcium by Providing Educational Materials on the Need to Take Daily Supplemental Calcium and Vitamin D to Patients With Paget's Disease Treated With Reclast®
This study will evaluate the impact of investigator and patient education and educational materials to foster calcium and vitamin D supplementation to mitigate the potential for hypocalcemia post Reclast® administration in…
- Trial name
- NCT00668200
- Testing
- Reclast (ZOL446, zoledronic acid), Calcium, Vitamin D
- Where
- 9 sites in United States
- Volunteers
- 81 people
- Sponsor
- Novartis Pharmaceuticals
Wheezing, Allergy
Wheezing in Black Preterm Infants: Impact of Vitamin D Supplementation Strategy
The goal of this study is to identify a vitamin D supplementation strategy that best promotes the lung, immune, and overall health of black infants born preterm (28-36 weeks gestational age).
- Trial name
- D-Wheeze (NCT01601847)
- Testing
- Cholecalciferol
- Where
- 5 sites in United States
- Volunteers
- 300 people
- Sponsor
- Case Western Reserve University
Obesity, Vitamin D Deficiency
Vitamin D Supplementation in Psychiatric Illnesses
Children and adolescents with psychiatric illnesses who are treated with medications called second generation antipsychotic agents (SGA) often gain excessive weight during their treatment with these medications.
- Conditions
- Obesity, Vitamin D Deficiency, Psychosis, Schizophrenia
- Trial name
- VDSS (NCT01004354)
- Testing
- Ergocalciferols
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- University of Massachusetts, Worcester
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
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
HIV Infections, AIDS
Vitamin D Dose Finding Study
Optimal vitamin D (vit D) concentration and metabolism are essential for normal immune function, growth, muscle, bone, and inflammatory status in children, adolescents and adults with HIV/AIDS.
- Trial name
- NCT01092338
- Testing
- Cholecalciferol (Vit D3)
- Where
- United States
- Volunteers
- 44 people
- Sponsor
- Children's Hospital of Philadelphia
Diabetes Mellitus, Type 1, Hypoglycemia
Pilot Study of OMEGA-3 and Vitamin D in High-Dose in Type I Diabetic Patients
The investigator propose to test the safety and efficacy of a regimen that combines Omega-3 Fatty Acids and Vitamin D in a design that considers timing and duration of administration in relation to their effects and predicted…
- Conditions
- Diabetes Mellitus, Type 1, Hypoglycemia, Diabetes Mellitus, Diabetes, Autoimmune
- Trial name
- POSEIDON (NCT03406897)
- Testing
- Cholecalciferol, Omega 3 fatty acid
- Where
- United States
- Volunteers
- 27 people
- Sponsor
- Rodolfo Alejandro