Clinical trials: Vitamin Supplementation
Colorectal Adenocarcinoma
Vitamin D3 With Chemotherapy and Bevacizumab in Treating Patients With Advanced or Metastatic Colorectal Cancer
This phase III trial studies how well vitamin D3 given with standard chemotherapy and bevacizumab works in treating patients with colorectal cancer that has spread to other parts of the body.
- Trial name
- SOLARIS (NCT04094688)
- Testing
- Bevacizumab, Oxaliplatin, Leucovorin Calcium
- Where
- 1,031 sites in United States, Puerto Rico
- Volunteers
- 455 people
- Sponsor
- Alliance for Clinical Trials in Oncology
Prostate Cancer
Vitamin D in Treating Patients With Prostate Cancer
RATIONALE: Vitamin D may be effective in treating patients with prostate cancer. PURPOSE: This randomized phase II trial is studying how well 4 different doses of vitamin D works in treating patients with prostate cancer.
- Trial name
- NCT00524680
- Testing
- cholecalciferol
- Where
- United States
- Volunteers
- 148 people
- Sponsor
- Roswell Park Cancer Institute
Human Immunodeficiency Virus (HIV)
Vitamin D3 Supplementation in Patients With HIV: Effects on Interleukin-6 Levels and CD4 Counts
This study aims to evaluate the effect of Vitamin D3 supplementation on inflammatory markers and immune status in patients with HIV who are receiving antiretroviral therapy.
- Trial name
- NCT07553052
- Testing
- Vitamin D3, Antiretroviral (ARV) medications
- Where
- Indonesia
- Volunteers
- 20 people
- Sponsor
- Universitas Sebelas Maret
Development, Vitamin Deficiency
Vitamin B12, Neurodevelopment and Growth in Nepal
Rationale: Globally, vitamin B12 deficiency is one of the most common micronutrient deficiencies. The only relevant source of Vitamin B12 is animal-source foods.
- Conditions
- Development, Vitamin Deficiency, Malnutrition
- Trial name
- BeLive (NCT02272842)
- Testing
- Vitamin B12
- Where
- Nepal
- Volunteers
- 600 people
- Sponsor
- Centre For International Health
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
Type 2 Diabetes
Vitamin D Supplementation on Cardiovascular Risk Factors
The purpose of the present pilot study is to determine the effect of vitamin D supplementation (4000 IU or 6000 IU once daily for 6 months) on reducing heart disease risk and in improving blood glucose control in type 2 Diabetes…
- Trial name
- NCT01412710
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 92 people
- Sponsor
- Florida International University
Vitamin D Deficiency
Vitamin D Supplementation Requirement in Obese Subjects
Vitamin D deficiency is common in obese patients. Most of vitamin D supplementation studies were done with non-obese subjects. This study looks at vitamin D supplementation requirements in obese patients as compared to non-obese…
- Trial name
- NCT00996866
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 27 people
- Sponsor
- Winthrop University Hospital
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
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
Pre-diabetes
Vitamin D in Minorities With Prediabetes
Vitamin D supplementation in minority subjects with both pre-diabetes and low vitamin D levels will delay the development of diabetes.
- Trial name
- NCT00876928
- Testing
- vitamin D
- Where
- United States
- Volunteers
- 117 people
- Sponsor
- Charles Drew University of Medicine and Science
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
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
Hyperhomocysteinemia, Obesity
Effect of Folic Acid Supplementation on Plasma Homocysteine Level in Obese Children
The purpose of the present study was to determine whether folic acid supplementation could reduce plasma homocysteine in obese children and to determine the association between dietary folate, serum folate and homocysteine level…
- Trial name
- NCT01766310
- Testing
- Folic Acid
- Where
- 2 sites in Thailand
- Volunteers
- 50 people
- Sponsor
- Queen Sirikit National Institute of Child Health
Oxidative Stress
Examining Endogenous Antioxidant Levels in Well Trained Cyclists
This study will investigate whether increased habitual intake of antioxidant supplements effects the concentration of endogenous antioxidants, the response of antioxidants to exercise, and differences in oxidative damage compared…
- Trial name
- NCT02281851
- Where
- United Kingdom
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Birmingham
Spinal Cord Injury
Effects of Electrical Stimulation and Vitamin D Supplementation on Bone Health Following Spinal Cord Injury.
Neurogenic osteoporosis is a common complication of spinal cord injury (SCI) that is associated with low impact bone fractures. It is concerning that more than 46,000 Veterans affected with SCI and are at risk of osteoporosis and…
- Trial name
- NCT05008484
- Testing
- NMES, Vitamin D, Passive movement
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
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
Head and Neck Cancer
Study of Pralatrexate With Vitamin B12 and Folic Acid Supplementation for Previously Treated Recurrent or Metastatic Head and Neck Squamous Cell Cancer (HNSCC)
The purpose of this study is to find out if the experimental drug pralatrexate with the vitamins folic acid and vitamin B12 might be an effective treatment for head and neck cancer.
- Trial name
- NCT01183065
- Testing
- Pralatrexate With Vitamin B12 and Folic Acid
- Where
- 5 sites in United States
- Volunteers
- 13 people
- Sponsor
- Memorial Sloan Kettering Cancer Center
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
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
Relapsing Remitting Multiple Sclerosis
Vitamin D Supplementation in Multiple Sclerosis
Low vitamin D levels have been shown to increase a person's risk of developing multiple sclerosis (MS), and patients with MS who have lower vitamin D levels are at increased risk of having attacks.
- Trial name
- NCT01490502
- Testing
- Vitamin D3
- Where
- 16 sites in United States
- Volunteers
- 172 people
- Sponsor
- Johns Hopkins University