Clinical trials: Supplements
Healthy
Drug Interactions of Echinacea, Ginseng, and Ginkgo Biloba Taken With Lopinavir/Ritonavir in Healthy Volunteers
This study will examine the interaction of the HIV combination medication lopinavir/ritonavir with the herbal products echinacea, ginseng, and ginkgo biloba.
- Trial name
- NCT00103012
- Testing
- Gingko Biloba, Echinacea purpurea, Panax ginseng
- Where
- United States
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
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
Obesity, Diabetes Mellitus, Type 2
Supplements for Controlling Resistance to Insulin
The purpose of this study is to evaluate the effects of a combination of hydroxcycitrate (HCA) and niacin-bound chromium, in conjunction with nutrition education, over a twelve week period.
- Trial name
- SCORE (NCT00699413)
- Testing
- nutrition education plus active supplement, nutrition education plus inactive supplement
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Southern California
Dietary Supplements
A Study Evaluating Quality of Life Parameters Following Use of Emergen-C
The purpose of this study is to determine how Emergen-C use can improve quality of life (QoL) in a real-world setting to help consumers and healthcare professionals understand the benefits of taking Emergen-C on a routine or…
- Trial name
- NCT06654089
- Testing
- Emergen-C Core Super Orange Powder
- Where
- United States
- Volunteers
- 299 people, healthy volunteers welcome
- Sponsor
- HALEON
Pregnancy, Vitamin D Deficiency
Trial of Vitamin D Supplements to Raise Calcidiol Levels of Pregnant Women in Mongolia
A double-blind randomized, placebo-controlled trial comparing the impact of 600 IU, 2000 IU, or 4000 IU of Vitamin D3 on third trimester 25(OH)D levels and change from baseline.
- Trial name
- NCT02395081
- Testing
- 600 IU Vitamin D3 in prenatal vitamin, 2000 IU Vitamin D3 in prenatal vitamin, 4000 IU Vitamin D3 in prenatal vitamin
- Where
- Mongolia
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Cognitive Benefits
Citicoline, Creatine, and Omega-3 Effects in Middle Age Women
The purpose of this study is to determine the functional effects of a citicoline, creatine, and omega-3 fatty acids combination when administered for a duration of four weeks (28 days) to non-psychiatric adult female participants.
- Trial name
- NCT01502813
- Testing
- Citicoline, Omega-3 Fatty Acids and Creatine
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Deborah Yurgelun-Todd
Hypercholesterolemia
Effect of a Treatment With a Nutraceutical Combination on Sub-optimal LDL Cholesterol Levels
High cholesterol is one of the major controllable risk factor for coronary heart disease. It is well demonstrated that drugs that reduce the intestinal absorption of cholesterol or block the synthesis of cholesterol or the…
- Trial name
- NATCOL (NCT03739242)
- Testing
- Nutraceutical combination
- Where
- Italy
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- A. Menarini Industrie Farmaceutiche Riunite S.r.l.
Aging
Nutraceutical Effects on Long-Term Memory
Interventions to improve the cognitive health of older adults are of critical importance. In the current protocol, ithe investigators conducted a short-term (two months) randomized clinical trial to examine the influence of the…
- Trial name
- NCT01963767
- Testing
- NT-020
- Where
- United States
- Volunteers
- 139 people, healthy volunteers welcome
- Sponsor
- University of South Florida
Healthy, Aging
Ashwagandha Pharmacokinetics Study in Older Adults
This study will measure the oral bioavailability and pharmacokinetics of known compounds from a standardized Withania somnifera botanical dietary supplement in healthy older adults.
- Trial name
- NCT06171724
- Testing
- Shoden
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Cardiovascular Diseases, Cardiovascular Abnormalities
The Effects of the Dietary Supplement CardioFlex Q10 on Reducing Cardiovascular Disease Risk Factors in Adults
Cardiovascular diseases (CVD), primarily heart disease and stroke, are the leading causes of death and prescription drug use in Canada.
- Conditions
- Cardiovascular Diseases, Cardiovascular Abnormalities, Heart Attack, Stroke
- Trial name
- NCT03826914
- Testing
- CardioFlex Q10
- Where
- Canada
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Healthy
Effects of Iron Supplements on the Pharmacokinetics of MT-6548
The objectives of this study are to investigate the pharmacokinetics and safety of MT-6548 co-administered with iron supplements in healthy male volunteers.
- Trial name
- NCT03645863
- Testing
- MT-6548, Iron supplement A, Iron supplement B
- Where
- Japan
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Tanabe Pharma Corporation
Iron-deficiency
Prebiotic GOS and Lactoferrin With Iron Supplements
The ultimate goal of this research is to develop a means to safely administer iron supplements to infants in settings with a high infection burden.
- Trial name
- NCT03866837
- Testing
- Galacto-oligosaccharides, Bovine lactoferrin, Multiple micronutrient powders with 5 mg iron
- Where
- 2 sites in Kenya, Switzerland
- Volunteers
- 288 people, healthy volunteers welcome
- Sponsor
- Columbia University
Healthy Adults
Evaluation of the Ketogenic Potential of Different Diet Supplements
Evaluate the capacity of different dietary supplements to increase ketone production in healthy adults.
- Trial name
- NCT02693106
- Testing
- Control, Leucine, Butyrate -
- Where
- Canada
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Université de Sherbrooke
Cataract
Collaborative Italian-American Clinical Trial of Nutritional Supplements and Age-related Cataract (CTNS)
The Collaborative Italian-American Clinical Trial of Nutritional Supplements and Age-related Cataract (CTNS) is a 13-year study designed primarily to evaluate the safety and efficacy of a vitamin-mineral supplement (Centrum)…
- Trial name
- CTNS (NCT00309387)
- Testing
- Centrum
- Where
- Italy
- Volunteers
- 1,020 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Obesity
Fruit and Vegetable Juice Concentrate Effects on RBP4 and Antioxidant Capacity in Lean and Overweight 6-10 Year Old Boys
Our study aims to evaluate if the consumption of a Fruit and Vegetable Juice Concentrate (FVJC) vs. placebo can exert changes in the serum levels of Retinol Binding Protein 4 (RBP4), carotenoids, tocopherol, antioxidant capacity…
- Trial name
- FVJC (NCT00842543)
- Testing
- Fruit and Vegetable Juice Concentrate (FVJC)
- Where
- United States
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Nemours Children's Clinic
Breast Cancer
Nutritional Supplements and Hormonal Manipulations for Breast Cancer Prevention
The overall hypothesis is that the combination of a low dose of the antiestrogen Raloxifene with omega-3 fatty acids will exert a synergistic breast cancer chemopreventive effect due to the crosstalk of their downstream cellular…
- Trial name
- NCT00723398
- Testing
- Lovaza 4gm oral, Raloxifene 60 Mg Oral Tablet, Raloxifene 30 Mg Oral Tablet
- Where
- United States
- Volunteers
- 266 people, healthy volunteers welcome
- Sponsor
- Milton S. Hershey Medical Center
Overweight
Oxidized Omega-3 Supplements With Different Oxidation
The oxidation level of unsaturated fatty acid supplements commercialized in capsules could be a serious problem for manufacturers and a risk to consumers; health by ingesting substances whose effects are not desired.
- Trial name
- GPTPASPAD (NCT01799720)
- Testing
- Less oxidized oil and diet, More oxidized oil and diet, Hypercholesterolemic diet
- Where
- Spain
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- Universidad Miguel Hernandez de Elche
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
Effects of Carbohydrate in Diet and Supplements on the Gastrointestinal Tolerability of LIK066
The purpose of this study was to determine if LIK066 taken with a meal containing low carbohydrate is associated with less diarrhea compared to a high carbohydrate meal and to assess the potential effects of supplements such as…
- Trial name
- NCT03198767
- Testing
- LIK066, Carbohydrate 50%, Carbohydrate 25%
- Where
- United States
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Novartis Pharmaceuticals
Short Stature
Weekly Zinc Chelate Supplementation on Children's Growth
The purpose of this study is to measure the effect of weekly zinc supplementation on schoolchildren with growth deficit or normal stature.
- Trial name
- APZinc (NCT01911260)
- Testing
- Zinc amino acid chelate
- Volunteers
- 199 people, healthy volunteers welcome
- Sponsor
- Federal University of São Paulo