Clinical trials: Supplementation
Vitamin D Deficiency
Controlled Trial of Prenatal Vitamin D3 Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants
The purpose of this research study is to compare the effects of higher dose vitamin D with commonly recommended dose in pregnant women to see which is better in achieving and/or maintaining sufficient vitamin D blood levels…
- Trial name
- PA 03-103 (NCT00610688)
- Testing
- Prenatal Vitamin, Cholecalciferol (Vitamin D3)
- Where
- 2 sites in United States, United Arab Emirates
- Volunteers
- 192 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Traumatic Brain Injury (TBI), Chronic Traumatic Encephalopathy (CTE)
The Effects of Fish Oil Supplementation on the Brain Health of Collegiate Football Athletes
Determine if the daily docosahexaenoic acid (DHA)/eicosapentaenoic acid (EPA) supplement will reduce serum levels of biomarkers of sub-concussion injuries over a course of American football season among collegiate football…
- Trial name
- NCT04796207
- Testing
- Fish Oil (DPA+EPA 2:1 ratio) Capsules, High Oleic Safflower Oil Capsules
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- University of Arizona
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
Premature Atrial Contraction
Magnesium Supplementation for the Prevention of Supraventricular Arrhythmias
The primary objective of this research is to determine whether oral magnesium supplementation in healthy, community-living individuals will be associated with reductions in the burden of arrhythmias in the upper chambers of the…
- Trial name
- NCT02837328
- Testing
- Oral Magnesium Supplement
- Where
- United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Fatigue, Stress, Job
Effects of Probiotics on Gut Microbiota, Endocannabinoid and Immune Activation and Symptoms of Fatigue in Dancers
The aim of the planned research is to assess the dynamics of changes in the elements of the gut-brain axis (GBA), the cytokine profile and the endocannabinoid system markers, after dietary supplementation with probiotics…
- Trial name
- NCT05567653
- Testing
- Lactobacillus helveticus Rosell-52 and Bifidobacterium longum Rosell-175 (Sanprobi Stress)
- Where
- Poland
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Poznan University of Physical Education
Impaired Fasting Glucose
The Effect of a Nutritional Supplement on Post Prandial Glucose and Lipids in an Adult Population
The primary aim of this study is to evaluate the effect of a fibre rich health food drink on the post prandial glucose and triglyceride peak in healthy overweight adults with impaired fasting glucose (IFG).
- Trial name
- NCT02119325
- Testing
- 25% fibre, 0% fibre
- Where
- India
- Volunteers
- 96 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Aging
Dietary Nitrate and Physiological Aging
The main purpose/s of this study is to examine the effects of 4 weeks of dietary nitrate supplementation on peripheral chemoreceptor sensitivity, spontaneous baroreflex sensitivity, and blood pressure responsiveness to a variety…
- Trial name
- NCT02593305
- Testing
- Super Beets
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Darren P Casey
Functional Constipation
Dose-ranging Efficacy of Polydextrose Supplement on Colonic Transit Time and Symptoms in Adults With Functional Constipation
This study will investigate the effectiveness of Polydextrose, a dietary fiber, at decreasing Colonic Transit Time and the gastrointestinal symptoms of Functional Constipation.
- Trial name
- NCT02314936
- Testing
- Litesse powder containing 12 g polydextrose, Litesse powder containing 8 g polydextrose, Litesse powder containing 4 g polydextrose
- Where
- Canada
- Volunteers
- 192 people, healthy volunteers welcome
- Sponsor
- KGK Science Inc.
Infection, Pregnancy
Effects of Oral Probiotic Supplementation on Group B Strep (GBS) Rectovaginal Colonization in Pregnancy
The investigators wish to determine if oral probiotic supplementation during the second half of pregnancy decreases maternal GBS recto-vaginal colonization at 35-37 weeks' gestational age, thereby decreasing need for maternal…
- Trial name
- NCT01479478
- Testing
- Probiotic dietary supplement
- Where
- 3 sites in United States
- Volunteers
- 251 people, healthy volunteers welcome
- Sponsor
- Stanford University
Vitamin D Deficiency
Safety of Vitamin D Supplementation in Older Persons
This study will evaluate the safety over 6 months of two different doses of vitamin D (cholecalciferol) in men and women age 65 and older. It will also evaluate if supplementation with vitamin D improves physical performance.
- Trial name
- NCT00681590
- Testing
- cholecalciferol (vitamin D)
- Where
- United States
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- University of Miami
Immunity to Oral Rotavirus Vaccine, Immunity to Oral Polio Vaccine
Zinc and/or Probiotic Supplementation of Rotavirus and Oral Polio Virus Vaccines
Background: Strategies are needed to improve oral rotavirus vaccine (RV), which provides suboptimal protection in developing countries.
- Conditions
- Immunity to Oral Rotavirus Vaccine, Immunity to Oral Polio Vaccine, Shedding of Oral Rotavirus Vaccine
- Trial name
- NCT01616693
- Testing
- Probiotic, Zinc, Rotavirus vaccine
- Where
- India
- Volunteers
- 620 people, healthy volunteers welcome
- Sponsor
- PATH
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
Obesity, Insulin Resistance
Vitamin D Supplementation to Obese Chinese Males
Hypothesis: Oral Supplementation of Vitamin D can Reduce Hypersecretion of Parathyroid Hormone and Insulin Resistance in Obese Chinese Males.
- Trial name
- NCT01781169
- Testing
- Oral supplementation of vitamin D
- Where
- China
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- Shenzhen Center for Chronic Disease Control
Multiple Sclerosis, Relapsing-remitting
Pharmacokinetics of Vitamin D in Multiple Sclerosis and in Health
This is a pilot study of oral vitamin D supplementation to determine if patients with Multiple Sclerosis (MS) and healthy individuals attain a similar increase in serum 25-hydroxyvitamin D levels.
- Trial name
- NCT01667796
- Testing
- Vitamin D3
- Where
- 2 sites in United States
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Hypoxia
The Effect of Chronic Nitrate Supplementation on Acute Mountain Sickness and Exercise Performance in Hypoxia
The study will aim to describe and evaluate the effect of chronic beetroot juice supplementation on acute mountain sickness symptoms and exercise in a hypoxic environment.
- Trial name
- NCT03101904
- Testing
- Beetroot Juice
- Where
- United Kingdom
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Bangor University
Oxidative Stress, Inflammation
Effect of Dietary Supplemental Fish Oil in Alleviating Health Hazards Associated With Air Pollution
This study aims to evaluate whether dietary supplementation with fish oil can protect against the cardiopulmonary alterations linked to air pollution
- Conditions
- Oxidative Stress, Inflammation, Blood Pressure, Vasoconstriction
- Trial name
- NCT03255187
- Testing
- Fish oil supplementation, Sunflower seed oil supplementation
- Where
- China
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Fudan University
Hypovitaminosis D
Comparing a Novel Phototherapy Kiosk to Oral Vitamin D Supplementation
The purpose of this project is to demonstrate the capability of a standing phototherapy kiosk (SPK) to stimulate cutaneous vitamin D3 and subsequent production of 25 Hydroxyvitamin (OH) D safely and as efficiently as an oral…
- Trial name
- NCT04556136
- Testing
- Standing Phototherapy Kiosk, D3 Oral supplement
- Where
- United States
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Madigan Army Medical Center
Malocclusion, Class II Buccal Segment Relationship
Chesterfield Micro-implant Study Involving Three Types of Anchorage Methods in Orthodontics
Research problem: Anchorage reinforcement is effective with headgear provided patient compliance is optimal. Nance palatal arch have also been shown to be effective.
- Trial name
- PJSPhD (NCT00995436)
- Testing
- Extraoral anchorage, Miniscrews, Nance
- Where
- United Kingdom
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Chesterfield and North Derbyshire Royal Hospital
Body Weight Changes, Athletic Performance
Whey Protein Supplementation in High School Athletes
The overall aim of this project is to compare protein supplementation on performance, recovery, and body composition changes in adolescent soccer players between the whey protein and the control group in response to the…
- Conditions
- Body Weight Changes, Athletic Performance, Recovery, Sleep
- Trial name
- NCT05589129
- Testing
- Whey Protein Supplement
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- University of Utah
Post-Menopausal Osteoporosis, Post-Menopausal Osteopenia
Vitamin K Supplementation in Post-Menopausal Osteopenia
The purpose of this study is to determine whether supplementation with 5 mg vitamin K daily over a 2-year period will prevent bone loss in post-menopausal women with osteopenia.
- Trial name
- NCT00150969
- Testing
- vitamin K1 (phylloquinone)
- Where
- 5 sites in Canada
- Volunteers
- 440 people, healthy volunteers welcome
- Sponsor
- University Health Network, Toronto