Clinical trials: Vitamin C
Pain
Study Evaluating the Efficacy of an Ibuprofen Effervescent Tablet in the Treatment of Post-Surgical Dental Pain
Evaluation of the efficacy and safety of a single dose of an ibuprofen effervescent tablet in the treatment of pain following third molar extraction in comparison to single doses of placebo, standard ibuprofen tablets, and…
- Trial name
- NCT00631111
- Testing
- effervescent ibuprofen tablets, effervescent Aspirin plus Vitamin C tablets, ibuprofen tablets
- Where
- United States
- Volunteers
- 270 people, healthy volunteers welcome
- Sponsor
- Wyeth is now a wholly owned subsidiary of Pfizer
Acne
RCT of an Oral Acne Supplement for Adult Women
This study is to assess the efficacy and tolerability of an oral supplement in mild to moderate acne in adult females.
- Trial name
- NCT06097871
- Testing
- Skin Nutraceutical Supplement
- Where
- United States
- Volunteers
- 102 people, healthy volunteers welcome
- Sponsor
- Nutraceutical Wellness Inc.
Healthy, Suboptimal Vitamin C Levels
The Impact of Qualia Vitamin C+ on Blood Vitamin C Levels
This is a double-blind, placebo-controlled, parallel-group, study evaluating the effect of a Qualia Vitamin C+ formulation on Whole Blood Vitamin C levels in the blood of healthy adults aged 25 years or older.
- Trial name
- NCT07285109
- Testing
- Qualia Vitamin C+
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Qualia Life Sciences
Lack or Loss Appetite Nonorganic Origin
Efficacy and Tolerability of Apevitin BC Comparing to Vitamin Complex in Stimulating the Appetite
Lack of appetite is one of the most common reasons for visits to pediatric clinics.The symptoms usually manifest after weaning when they are introduced into the diet of infant foods containing salt.Is normally used to…
- Trial name
- Inappetence (NCT01283646)
- Testing
- Apevitin BC, Vitamin B Complex + Vitamin C
- Where
- 3 sites in Brazil
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- EMS
Iron Absorption
Iron Bioavailability of Fortified Oat Drink
This study will follow a double blinded randomized controlled study design to enroll 20 apparently healthy 6 year old children. The children will be fed with two different nutrient fortified oat drinks labeled with stable…
- Trial name
- NCT01423162
- Testing
- Dietary Intervention (with Vit C then without Vit C), Dietary Intervention (without Vit C followed by with Vit C)
- Where
- Philippines
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- PepsiCo Global R&D
Fatigue, Breast Cancer
Wide Spectrum Micronutrients Supplementation in Patients With Cancer Related Fatigue During Neoadjuvant and Adjuvant Chemotherapy
The goal of this clinical trial is to test the effect of the administration of APPORTAL® in addition to the SoC (recommended physical exercise), in patients with breast cancer, suffering from fatigue during neoadjuvant and…
- Trial name
- NCT06137833
- Testing
- APPOPRTAL®
- Where
- 5 sites in Italy
- Volunteers
- 92 people
- Sponsor
- Pharmanutra S.p.a.
Healthspan Improvement, Aging
Combination Gerotherapeutic Interventions for Healthspan Improvement
This study is a 90-day interventional, randomized, controlled pilot trial exploring multi-modal gerotherapies and their impact on longevity-related outcomes.
- Conditions
- Healthspan Improvement, Aging, Longevity
- Trial name
- NCT07475546
- Testing
- Rapamycin, Naltrexone, Metformin
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- AgelessRx
Tooth Whitening, Tooth Discoloration
Clinical Research Study to Evaluate Stain Removal and Whitening Improvement
The objective of this clinical research study is to evaluate the stain removal and whitening improvement of a toothpaste containing Vitamin C and 1100 ppm F as sodium fluoride as compared to a matching placebo toothpaste…
- Trial name
- NCT07870018
- Testing
- Vitamin C toothpaste
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Colgate Palmolive
Haematopoiesis
A Study to Demonstrate the Efficacy and Tolerability of Ferrous Bisglycinate Chelate in Iron Deficiency Anaemia and to Compare These With Those of Ferrous Ascorbate.
Iron deficiency anaemia (Haemoglobin, Hb < 12gm/dl) is one of India's major public health problems particularly in women. Effective control of iron deficiency anaemia decreases the incidence of fatigue, bodyache, headache, lack…
- Trial name
- NCT01160198
- Testing
- ferrous ascorbate, ferrous bisglycinate chelate 1 OD, ferrous bisglycinate chelate 2 OD
- Where
- 7 sites in India
- Volunteers
- 271 people
- Sponsor
- GlaxoSmithKline
Pollution; Exposure
Effect of an Oral Acerola Juice Powder on Skin Beauty Parameters in Women Exposed to Environmental Stresses
The study is being conducted to evaluate the efficacy and the safety of an oral acerola-based product on skin ageing parameters.
- Trial name
- NCT07229131
- Testing
- Acerola Juice Powder 1200 mg/day, Acerola Juice Powder 600 mg/day
- Where
- China
- Volunteers
- 108 people
- Sponsor
- Diana SAS
Covid19
Retrospective Study of ImmunoFormulation for COVID-19
Multicentre, retrospective, observational study to describe the course of SARS-CoV-2 disease in patients treated or not with IMUNO TF ® and a combination of nutraceuticals and who have tested positive in a COVID-19 diagnostic…
- Trial name
- NCT04666753
- Testing
- ImmunoFormulation
- Where
- 2 sites in Spain
- Volunteers
- 40 people
- Sponsor
- Fagron Iberica S.A.U.
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
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
Obesity, Rhinitis
Interventional Testing of Gene-environment Interactions Via the Verifomics Mobile Application
The purpose of this study is to study interactions between genes, lifestyle environmental factors like foods, nutritional supplements and non-invasive medical devices and health factors that can be measured without specialized…
- Conditions
- Obesity, Rhinitis, Rhinitis, Allergic, Respiratory Sounds
- Trial name
- NCT02758990
- Testing
- Vitamin A, Vitamin B6, Vitamin C
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Verifomics LLC
Skin Health, Skin Aging of Face and Hands
The Effect of Nutritional Supplementation on Actinic Purpura: A Pilot Study
Purpura is a macule or papule of blood in the skin. It is mostly seen in mature skin that is often prone to significant bruising.
- Conditions
- Skin Health, Skin Aging of Face and Hands, Healthy, Ecchymosis
- Trial name
- NCT06840574
- Testing
- Cyruta Plus: A Whole-Food Based Vitamin C supplement containing organic buckwheat (aerial parts) juice powder, organic buckwheat flour, bovine adrenal Cytosol™ extract, oat flour, honey, ascorbic acid, Low Dose Vitamin C, High Dose Vitamin C
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Standard Process 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
Bioavailability
Comparative Bioavailability of Two Forms of Vitamin C
The purpose of this study is to compare levels of vitamin C in the blood over the 24 hour period following a single 1000 mg dose of vitamin C from ascorbic acid, calcium ascorbate and placebo.
- Trial name
- NCT01852903
- Testing
- calcium ascorbate, ascorbic acid
- Where
- Canada
- Volunteers
- 40 people
- Sponsor
- NBTY, Inc.
Healthy
A Drug-drug Interaction Study of DP-R213
The purpose of this study is to learn about the effect of raloxifene on how the body absorbs and processes cholecalciferol and how cholecalciferol affects raloxifene when they are taken together.
- Trial name
- NCT02654093
- Testing
- Cholecalciferol, Raloxifene, Cholecalciferol and Raloxifene co-administration
- Where
- South Korea
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Alvogen Korea
Common Cold
Symptomatic Treatment of Common Cold Symptoms
A two-arm, multicenter, randomized, double-blind, single dose placebo-controlled parallel groups study evaluating efficacy and tolerability of 800 mg Acetylsalicylic Acid (Aspirina C) in adult patients with a common cold during a…
- Trial name
- NCT01033526
- Testing
- Aspirin (Acetylsalicylic acid, BAYE4465)
- Where
- 28 sites in Italy
- Volunteers
- 388 people
- Sponsor
- Bayer
Critical Limb Ischemia, Peripheral Arterial Disease
Revascularization of Stenosed Vessels Using Optimized Treatment of Rejuveinix for Reversing Endothelial Dysfunction
A Phase I/IIa Dose-Escalation Study Evaluating the Safety, Tolerability and Efficacy of Rejuveinix in Combination With Standard Interventional Therapy for Critical Limb Ischemia Patients with Rutherford Class 4, 5 and 6 Disease
- Trial name
- RESTORE (NCT03041259)
- Testing
- Rejuveinix Low Dose, Rejuveinix High Dose
- Volunteers
- 320 people
- Sponsor
- Reven Pharmaceuticals, Inc.