Clinical trials: Vitamin C
Quality of Life
Effect of Colon Delivered Vitamin C on Gut Microbiota and Related Health Biomarkers in Healthy Older Adults
Recent studies have shown that many vitamins, if consumed in high daily dosages or delivered to the colon, can modulate the gut microbiota and their metabolites.
- Trial name
- NCT05598619
- Testing
- Vitamin C
- Where
- Ireland
- Volunteers
- 264 people, healthy volunteers welcome
- Sponsor
- dsm-firmenich Switzerland AG
Colonoscopy
MOVIPREP® Versus NaP Pivotal Phase III Study
The aim of the study is to compare a new 2 litre bowel cleansing product versus a sodium phosphate solution already on the market. Efficacy of each bowel preparation, safety and acceptability will be assessed.
- Trial name
- NCT00322062
- Testing
- macrogol3350 NA sulphate NACL KCL ascorbic acid NA ascorbate, Sodium Phosphate Solution
- Where
- 18 sites in France
- Volunteers
- 340 people
- Sponsor
- Norgine
Hair Thinning, Hair Loss
A Clinical Trial to Examine the Efficacy of a Supplement to Support Healthy Hair and Skin
This is a triple-blinded, randomized, placebo-controlled clinical trial designed to evaluate the efficacy of Scale Media's Live Conscious Beyond Collagen supplement on overall hair and skin health.
- Trial name
- NCT06579742
- Testing
- Live Conscious Beyond Collagen
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Scale Media Inc
Peripheral Artery Disease
Effect of Neo40 on PAD
Reduced nitric oxide (NO) availability is a hallmark of a number of cardiovascular diseases (CVD) including peripheral artery disease (PAD).
- Trial name
- NCT02934438
- Testing
- Neo40
- Volunteers
- 30 people
- Sponsor
- HumanN
Collagen Synthesis, Rate of Force (RFD) Development
Effects of Hydrolyzed Collagen and Vitamin C on Explosive Performance
Determine whether supplementation with a combined dose of 20 g of hydrolyzed collagen and 50 mg vitamin C, along with a power training exercise program, increases rate of force development (RFD) and performance in athletes
- Trial name
- NCT04437758
- Testing
- Collagen and Vitamin C powder mix nutritional intervention, Maximum power training exercise
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- PepsiCo Global R&D
Healthy
Study Assessing Dosing Time and Calcium and Vitamin D on the Relative BA of 35 mg DR Risedronate Dosed With Food
Randomized, open-label, single dose, 3-treatment, 3-period crossover study, with a 14- to 17-day washout period between doses. The study will consist of a screening visit, study center admission (preceding Treatment Periods 1, 2…
- Trial name
- NCT00868907
- Testing
- 35 mg risedronate DR tablet
- Where
- 4 sites in United States
- Volunteers
- 101 people, healthy volunteers welcome
- Sponsor
- Warner Chilcott
Infections, Respiratory Tract
An Efficacy and Safety Study of Theraflu Night Powder as Oral Solution for Cold and Flu
The purpose of the study is to assess the short term efficacy of the Theraflu Night powder for oral solution in the Russian population in "Short term relief of the symptoms of colds, chills and influenza, including mild to…
- Trial name
- NCT02730364
- Testing
- Paracetamol, phenylephrine HCl, pheniramine maleate, and vitamin C
- Sponsor
- GlaxoSmithKline
Endothelial Dysfunction
A Phase 2, Pharmacokinetic (PK) Study of 6R-BH4 Alone or 6R-BH4 With Vitamin C in Subjects With Endothelial Dysfunction
This Phase 2, randomized, open-label, 2-treatment, 2-sequence, 2-period crossover, pharmacokinetic (PK) study will compare plasma concentrations of BH4 in subjects with endothelial dysfunction following 14 days of treatment by…
- Trial name
- NCT00532844
- Testing
- Sapropterin Dihydrochloride, Sapropterin Dihydrochloride and Vitamin C
- Where
- United States
- Volunteers
- 52 people
- Sponsor
- BioMarin Pharmaceutical
Health, Subjective, Gastrointestinal Dysfunction
Personalized Lifestyle Intervention for Improving Functional Health Outcomes Using N-of-1 Tent-Umbrella-Bucket Design
The LIFE-HOUSE research project is designed to evaluate the impact of a personalized lifestyle intervention program on functional capacity as an approach to quantitating health, and its relationship to well understood disease…
- Conditions
- Health, Subjective, Gastrointestinal Dysfunction, Cardiovascular Risk Factor, Autoimmune Diseases
- Trial name
- LIFE-HOUSE (NCT04005456)
- Testing
- Supplements and/or medical foods, Behavioral change support program, Food plan
- Where
- United States
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Metagenics, Inc.
Type 1 Diabetes
SAFety and Efficacy of Human Anti-thymocyte ImmunoGlobUlin SAB-142 ARresting Progression of Type 1 Diabetes
This is a Phase 2b, investigator- and participant-blinded, placebo-controlled, parallel-arm study to evaluate the efficacy, safety and tolerability of SAB 142 in patients with Stage 3 New Onset of Type 1 Diabetes (NOT1D).
- Trial name
- SAFEGUARD (NCT07187531)
- Testing
- High Dose SAB-142, Low Dose SAB-142
- Where
- 68 sites in United States, Australia and 13 more
- Volunteers
- 159 people
- Sponsor
- SAb Biotherapeutics, Inc.
Vitamin C Deficiency, Acute Disease
A Long-term Study to Describe the Use of PASCORBIN® 7.5 g in Patients With Vitamin C Deficiency
The aim of this long-term observational study is the documentation of the use of PASCORBIN® 7.5 g in patients with vitamin C deficiency.
- Conditions
- Vitamin C Deficiency, Acute Disease, Chronic Disease
- Trial name
- NCT02422901
- Testing
- vitamin C
- Where
- Germany
- Volunteers
- 5,000 people
- Sponsor
- Pascoe Pharmazeutische Praeparate GmbH
Chronic Kidney Disease, Secondary Hyperparathyroidism
Comparison of I.V. CTAP201 and Doxercalciferol (Hectorol) in Subjects With Chronic Kidney Disease (CKD) and Secondary Hyperparathyroidism (SHPT)
This study will compare CTAP201 with Doxercalciferol in patients with chronic kidney disease (CKD) and secondary hyperparathyroidism (SHPT), undergoing regular hemodialysis, at different dose strengths.
- Conditions
- Chronic Kidney Disease, Secondary Hyperparathyroidism, Chronic Renal Insufficiency, Chronic Renal Failure
- Trial name
- NCT00792857
- Testing
- CTAP201 Injection, Doxercalciferol
- Where
- 6 sites in United States
- Volunteers
- 24 people
- Sponsor
- OPKO IP Holdings II, Inc.
Infertility, Female, Infertility, Male
Effects of Antioxidant Supplementation of Culture Media on IVF Embryos
The goal of this clinical trial is to investigate the impact of repeated antioxidant supplementation on blastocyst utilization and expansion rates in embryos under different oxygen concentrations.
- Trial name
- NCT05919186
- Testing
- EmbryORP®, O2 tension 20%, O2 tension 5%
- Where
- Mexico
- Volunteers
- 293 people
- Sponsor
- Liliana Berenice Ramírez Domínguez
Delayed Onset Muscle Soreness, DOMS
COMBOPROFEN for Treatment of Muscular Pain Associated With Delayed Onset Muscle Soreness (DOMS)
The study is designed as a proof of concept, single-center, randomized, double-blind, placebo controlled study to assess the safety and efficacy of Comboprofen (Ibuprofen + Magnesium + Vitamin C) compared to placebo, Ibuprofen…
- Trial name
- NCT03223519
- Testing
- Comboprofen, Ibuprofen, Magnesium
- Where
- Spain
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- Spherium Biomed
Vitamin D Deficiency, Vitamin D Insufficiency
ALPCO 25(OH) Vitamin D CLIA Kit - Fresh Versus Frozen Serum and Plasma Stability Study
This study evaluates the stability of 25-hydroxyvitamin D [25(OH)D] measurements in human serum and plasma using the ALPCO 25(OH) Vitamin D CLIA Kit.
- Conditions
- Vitamin D Deficiency, Vitamin D Insufficiency, Healthy Volunteers
- Trial name
- NCT07565064
- Testing
- ALPCO 25(OH) Vitamin D CLIA Kit
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- American Laboratory Products Company
Virus Diseases, Herpes Zoster
Intravenous Vitamin C in the Treatment of Viral Infection, Especially in the Treatment of Shingles
Chronic viral infections induce oxidative stress that can cause a number of concomitant diseases, e.g. cardio-vascular diseases or metabolic disorders.
- Trial name
- 168 (NCT00921934)
- Where
- Germany
- Volunteers
- 68 people
- Sponsor
- Pascoe Pharmazeutische Praeparate GmbH
Ischemic Heart Disease, Stable Coronary Artery Disease
To Evaluate Safety and Efficacy of CGBIO Stent Compared to Biomatrix Flex Stent
to evaluate safety and efficacy of CGBIO stent(DES) compared to Biomatrix flex stent(DES)
- Conditions
- Ischemic Heart Disease, Stable Coronary Artery Disease, Stable Angina, Unstable Angina
- Trial name
- NCT03089450
- Testing
- CGBio stent, Biomatrix flex
- Where
- South Korea
- Volunteers
- 112 people
- Sponsor
- CGBio Inc.
Restless Legs Syndrome
Alpha-lipoic Acid Combined With B Vitamins Shows Promise for Treating Restless Legs Syndrome
Investigating Tiobec® 400's efficacy in alleviating Restless Legs Syndrome symptoms sheds light on promising therapeutic avenues.
- Trial name
- NCT06324760
- Testing
- Alpha-lipoic acid combined with B vitamins
- Where
- Spain
- Volunteers
- 20 people
- Sponsor
- Uriach Consumer Healthcare
Hemorrhage
An Observational Cohort Study to Investigate the Risk of Thromboembolic Events in Patients Receiving Kcentra® or Plasma to Reverse Vitamin K Antagonist (VKA) Therapy in the Setting of Acute Major Bleeding
This observational cohort study is designed to obtain product safety information from the routine clinical setting within large, diverse, community-based populations.
- Trial name
- NCT02319460
- Testing
- Kcentra®, Plasma
- Where
- United States
- Volunteers
- 2,238 people
- Sponsor
- CSL Behring
Anxiety, Stress
An Exploratory Investigation of a Supplement to Promote Cognitive Health Benefits
The Smart Supplement has 20 vitamins and minerals that have strong track records of demonstrating positive health effects, both physiologically and cognitively.
- Conditions
- Anxiety, Stress, Memory Deficits, Cortisol Overproduction
- Trial name
- NCT05523115
- Testing
- Heights Smart Supplement
- Where
- United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Heights