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
Knee Osteoarthritis
Randomized Trial of Regenexx Stem Cell Support Formula
Regenexx, LLC developed a nutritional supplement formula containing many components related to supporting healthy joints This oral, liquid supplement is intended to help improve joint and cartilage health while also increasing…
- Trial name
- NCT04661267
- Testing
- Stem Cell Support Formula
- Where
- 2 sites in United States
- Volunteers
- 80 people
- Sponsor
- Regenexx, LLC
Neuropathic Pain
Vitamin C as add-on Therapy in Patients With Acute Herpes Zoster
To compare the efficacy and tolerability of three different doses of Pascorbin® besides standard medication with placebo and the reduction of herpes zoster-associated clinical symptoms as an add-on therapy for patients suffering…
- Trial name
- NCT05561257
- Testing
- Vitamin C
- Where
- 3 sites in Germany
- Volunteers
- 12 people
- Sponsor
- Pascoe Pharmazeutische Praeparate GmbH
Healthy Volunteers, hATTR Amyloidosis
Evaluate the Safety and Tolerability, as Well as the Pharmacokinetic and Pharmacodynamic Profiles of Single and Multiple Doses of Eplontersen Administered Subcutaneously to Healthy Volunteers and Patients With Hereditary Transthyretin-Mediated Amyloidosis (hATTR ).
To evaluate the safety and tolerability, as well as the pharmacokinetic and pharmacodynamic profiles of single and multiple doses of Eplontersen administered subcutaneously to healthy volunteers and patients with Hereditary…
- Trial name
- NCT03728634
- Testing
- ION-682884, Vitamin A
- Where
- Canada
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- Ionis Pharmaceuticals, Inc.
Multiple Myeloma and Plasma Cell Neoplasm
Bortezomib, Ascorbic Acid, and Melphalan in Treating Patients With Newly Diagnosed Multiple Myeloma
RATIONALE: Bortezomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as melphalan, work in different ways to stop the growth of cancer cells, either by…
- Trial name
- NCT00317811
- Testing
- ascorbic acid, bortezomib, melphalan
- Where
- 8 sites in United States
- Volunteers
- 35 people
- Sponsor
- Oncotherapeutics
Premenstrual Syndrome (PMS)
Oxaloacetate Supplementation for Emotional PMS
Emotional Premenstrual Syndrome (PMS) affects millions of women worldwide. For Emotional PMS, including depression, anxiety, perceived stress and aggression, there are very few options.
- Trial name
- OAA4PMS (NCT03509714)
- Testing
- Jubilance (100 mg Oxaloacetate/150 mg Ascorbic Acid)
- Volunteers
- 48 people
- Sponsor
- Terra Biological LLC
Metabolism
A Study to Examine the Effect of a Thermogenic Energy Drink in Healthy Adults
This study is intended to examine the acute thermogenic effects of the active study product (energy drink), in healthy adults.
- Trial name
- NCT05061797
- Testing
- Thermogenic Energy Drink - Active Study Product Formula
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Rowdy Energy
Healthy Volunteers
Predictive Questionnaire for Vitamin D Insufficiency in Healthy Adults
The purpose of this clinical study is to evaluate the metrological properties of a questionnaire that aims to identify the vitamin D status in reference to a vitamin D blood dosage.
- Trial name
- NCT02408679
- Testing
- Blood sampling, Predictive questionnaire for vitamin D insufficiency
- Where
- France
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Lesieur
Iron Bioavailability
Baby Iron Bioavailability Study
The overall objective of this trial is to investigate the iron bioavailability from new infant cereals in Malawian infants.
- Trial name
- NCT03754543
- Testing
- Labeled iron salt Fe54, Labeled iron salt Fe57, Labeled iron salt Fe58
- Where
- Malawi
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Société des Produits Nestlé (SPN)
Infections, Bacterial
Relative Bioavailability Study in Healthy Subjects
Part 1 of this study will assess the relative bioavailability of GSK1322322 administered as one of three investigational tablets compared to powder in a bottle formulation.
- Trial name
- PDF112034 (NCT00924911)
- Testing
- GSK1322322
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Vitamin Deficiency
Study of Absorption Characteristics of Two Multivitamin Mineral Formulations (Gel vs. Tablet/Capsule)
This clinical study is designed to evaluate difference in the AUC of the absorption of Multivitamin and minerals defined in the protocol
- Trial name
- NCT03146273
- Testing
- Multivitamins
- Where
- Israel
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Galilee CBR
Exercise Performance
The Impact of Supplementation With Novel Prototype Nutrition Bar on Nitric Oxide Bioavailability and Measures of Athlete Performance
Dietary nitrate, L-citrulline, epicatechin, vitamin C and glutathione have the potential to improve nitric oxide (NO) bioavailability, in humans, by influencing both the nitrate-nitrite-NO and NO synthase-dependent pathways, and…
- Trial name
- NCT03686982
- Testing
- Active Nitrate Bar
- Where
- United Kingdom
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- PepsiCo Global R&D
Hyperpigmentation, Skin Ageing
Evaluation of the Safety and Tolerability of a Brightening Treatment Paired With a Skincare Regimen
A12-week single-center, open-label, clinical study is being conducted to assess the efficacy and tolerability of the Brightening Treatment paired with a skincare regimen on healthy female subjects aged 20-65 years with…
- Conditions
- Hyperpigmentation, Skin Ageing, Post Inflammatory Hyperpigmentation, Skin Roughness
- Trial name
- NCT07501000
- Testing
- Brightening Treatment
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Revision Skincare
Hyperpigmentation, Melasma
A 4-week Study Investigating Two Targeted Brightening Serum (A and B) Versus 4% Hydroquinone in Women With Mild to Severe Full-face Hyperpigmentation
This a short four-week pilot study to measure the efficacy and tolerance of two brightening serums (cosmetics) versus 4% hydroquinone. The study was conducted in two sites across the USA, one in PA and in one in CA.
- Conditions
- Hyperpigmentation, Melasma, Dark Spots
- Trial name
- NCT07644871
- Testing
- Facial Cleanser, Facial Moisturizer, Sunscreen SPF 55
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Revision Skincare
Type II Diabetes
Evaluation of Effects of Dibifree® on Regulation of Blood Sugar and HbA1c in Patients With Type II Diabetes
At present, diabetic patients mainly use drugs to control blood sugar. However, drugs have side effects and the control effect varies among individuals.
- Trial name
- NCT06224803
- Testing
- Compound plant extracts, Indigestible dextrin
- Where
- Taiwan
- Volunteers
- 56 people
- Sponsor
- Global Preventive Medicine Biotech Co., Ltd.
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
Pancreatic Cancer
A Study of Gemcitabine ± Erlotinib and DN-101 Versus Gemcitabine ± Erlotinib and Placebo in Patients With Advanced Pancreatic Cancer
The purpose of this study is to determine the safety and efficacy of an investigational study drug DN-101 (calcitriol) when given in combination with gemcitabine ± erlotinib in the treatment of pancreatic cancer.
- Trial name
- NCT00536770
- Testing
- calcitriol + gemcitabine, calcitriol + gemcitabine + erlotinib
- Where
- United States
- Volunteers
- 132 people
- Sponsor
- Novacea
Visible Light Exposure on Healthy Back Skin
ANTIPIGMENTING OR DEPIMENTING EFFICACY UNDER PART OF VISIBLE LIGHT
The study intends to validate a protocol and define a positive reference to evaluate the efficacy of anti-pigmenting and depigmenting agents under part of visible Light exposures, between 400nm to 450nm.
- Trial name
- ACR_BIOVI_21-0 (NCT06945393)
- Testing
- Cosmetic topical products
- Where
- Romania
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- L'Oreal
Diabetes, Diabetic Retinopathy
Diabetic Retinopathy Functional Evaluation Study: Monitoring Carotenoid Vitamins Treatment Using ERG
To evaluate the differences in retinal function as measured by ERG in diabetics with and without retinopathy 2) the ability of the Chromatic Electroretinogram (chERG) to detect changes in global retinal function following…
- Trial name
- NCT04117022
- Testing
- DVS supplementation
- Where
- 2 sites in United States
- Volunteers
- 45 people
- Sponsor
- ZeaVision, LLC
Acute Promyelocytic Leukemia (APL), Acute Promyelocytic Leukaemia
A Trial to Investigate Whether Oral Arsenic Trioxide Is Similar to Intravenous Arsenic Trioxide in Pharmacokinetics, Safety, and Efficacy (LATITUDE/SDKARS-301)
LATITUDE: A Phase 3, Randomized, Open-Label, 3-Cohort, 2-Period, 2- Sequence, Crossover Trial to Evaluate the Pharmacokinetics, Safety, and Efficacy of Oral Arsenic Trioxide Versus Intravenous Arsenic Trioxide for Consolidation…
- Conditions
- Acute Promyelocytic Leukemia (APL), Acute Promyelocytic Leukaemia, Acute Promyelocytic Leukemia With PML-RARA, Acute Promyelocytic Leukemia With t(15;17)(q24.1;q21.2); PML-RARA
- Trial name
- LATITUDE (NCT07296445)
- Testing
- Oral ATO, IV Arsenic Trioxide, all-trans retinoic acid (ATRA)
- Volunteers
- 120 people
- Sponsor
- SDK Therapeutics, Inc.