Clinical trials: Vitamin D Status
Vitamin D Deficiency, Vitamin D Insufficiency
Evaluating the Effect of SOLIUS UV Light Source in Improving Vitamin D Status
The aim of this study is to evaluate the safety and effectiveness of the SOLIUS System in improving serum levels of 25-hydroxyvitamin D in vitamin D deficient/ insufficient adults of various skin types.
- Trial name
- NCT04780776
- Testing
- UVB treatment
- Where
- United States
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Boston 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
Neurotoxicity
Study to Assess Prevention of Oxaliplatin-induced Neurotoxicity Through Vitamin D Pathway
Many patients with cancer that are treated with a drug called oxaliplatin. This drug is used with other drugs to treat cancer. The drug can cause problems with the nerves in the hands and feet called peripheral neuropathy (a side…
- Trial name
- NCT01499940
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 9 people
- Sponsor
- Gerald Higa, PharmD.
Cystic Fibrosis
Improving Vitamin D Status In Cystic Fibrosis
The purpose of this study is to establish an effective method to correct vitamin D deficiency in subjects with cystic fibrosis. The investigators will examine cholecalciferol, ergocalciferol and UV light.
- Trial name
- NCT00450073
- Testing
- ergocalciferol (vitamin D2), Sperti Del Sol Lamp, Vitamin D3
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Atlanta VA Medical Center
Hypovitaminosis D
High Dose Preoperative Cholecalciferol Supplementation and Perioperative Vitamin D Status
A growing body of evidence suggests that robust postoperative immune function is associated with a lower risk of surgical site infections (SSIs).
- Trial name
- NCT01689779
- Testing
- 100,000 IU cholecalciferol
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- Massachusetts General Hospital
Diabetes Mellitus, Type 1
GAD-Alum (Diamyd) Administered Into Lymph Nodes in Combination With Vitamin D in Type 1 Diabetes (DIAGNODE-1)
The objectives of the main study is to: Evaluate the safety of giving GAD-Alum (Glutamic acid decarboxylase) (Diamyd) directly into lymph glands in combination with an oral vitamin D regimen Evaluate how the above mentioned…
- Trial name
- DIAGNODE (NCT02352974)
- Testing
- GAD-Alum, Vitamin D
- Where
- Sweden
- Volunteers
- 12 people
- Sponsor
- Johnny Ludvigsson
Vitamin D3 Deficiency
Preventing Health Disparities During Pregnancy Through Vitamin D Supplementation
The purpose of this study is to give all mothers the best chance for a healthy pregnancy through vitamin D supplementation. We will study women of diverse racial/ethnic backgrounds who will receive either the current vitamin D…
- Trial name
- NCT01932788
- Testing
- Vitamin D3 4000 IU in gummy form
- Where
- United States
- Volunteers
- 342 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
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
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
Vitamin D Deficiency, Accidental Falls
Improving Vitamin D Status in Home-bound Elders
In the past two decades, the role of vitamin D has extended beyond bone health to encompass a wide range of biological activities important to physical function in older adults.
- Trial name
- MOW VitD (NCT01410084)
- Testing
- Vitamin D3, Vitamin E
- Where
- United States
- Volunteers
- 68 people
- Sponsor
- Wake Forest University Health Sciences
Healthy, no Evidence of Disease
Cholecalciferol and Flu Vaccine in Treating Healthy Participants
This randomized clinical trial studies cholecalciferol and flu vaccine in treating healthy participants. Cholecalciferol may increase the immunologic response of flu vaccine in healthy participants.
- Trial name
- NCT01561989
- Testing
- cholecalciferol, questionnaire administration, trivalent influenza vaccine
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Roswell Park Cancer Institute
Obesity, Vitamin D Deficiency
Efficacy of Vitamin D Supplementation in Bariatric Surgery Patients
As the use of bariatric surgery for treatment of extreme obesity adults continues to rise, clinicians must be aware of pre-existing nutritional deficiencies in overweight and obese patients.
- Trial name
- NCT01385098
- Testing
- Vitamin D3 and Calcium
- Where
- United States
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Vadim Sherman, MD
Vitamin D Status, Healthy
Comparison of the Efficacy of Calcium-cholecalciferol Foodstuffs and Calcium-cholecalciferol Supplement
This study is conducted in two phases. At the first phase, the prevalence of vitamin D insufficiency in primary school-children in Tehran is determined during the cold seasons of 2008.
- Trial name
- NCT00864539
- Testing
- fortified milk, plain milk, fortified orange juice
- Volunteers
- 585 people, healthy volunteers welcome
- Sponsor
- National Nutrition and Food Technology Institute
Sub-optimal Vitamin D Status, Pre-diabetes
Effect of Vitamin D3 Supplementation on Insulin Resistance- The DIR Study
Insulin resistance is a state where the body does not respond as it should to the insulin it produces. Individuals who are insulin resistant are at increased risk of both heart disease and type 2 diabetes; importantly, diabetes…
- Conditions
- Sub-optimal Vitamin D Status, Pre-diabetes, Insulin Resistance
- Trial name
- NCT01889810
- Testing
- Vitamin D3 supplementation
- Where
- United Kingdom
- Volunteers
- 81 people, healthy volunteers welcome
- Sponsor
- Queen's University, Belfast
Actinic Keratosis
Potential Impact of Patient Vitamin D Status in AK Response to MAL-PDT
In topical photodynamic therapy (PDT) for non-melanoma skin cancers, a photosensitizing prodrug, 5-aminolaevulinic acid (ALA) or its methylated ester, methyl aminolevulinate (MAL), is converted to the endogenous photosensitizer…
- Trial name
- PDT (NCT02878382)
- Testing
- Conventional MAL-PDT, Calcipotriol assisted MAL-PDT
- Where
- 2 sites in Brazil
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo
Colon Cancer
Vitamin D and Screening Colonoscopy or Polyp Surveillance
The investigators will recruit DoD beneficiaries 18 years or older, that have been referred for a screening colonoscopy or polyp surveillance (or had one in the last 2 weeks), and have no previous diagnosis of colorectal cancer.
- Trial name
- VitDColon (NCT02269332)
- Testing
- Screening Colonoscopy
- Where
- United States
- Volunteers
- 298 people
- Sponsor
- Mike O'Callaghan Military Hospital