Clinical trials: Ascorbic Acid
Infections, Respiratory Tract
An Efficacy and Safety Study of Theraflu Day Powder as Oral Solution for Cold and Flu
The purpose of the study is to assess the short term efficacy of the Theraflu Aktiv powder for oral solution in the Russian population as compared to an untreated group to support the indication of "Short term relief of the…
- Trial name
- NCT02678234
- Testing
- Paracetamol, phenylephrine HCl, and vitamin C
- Sponsor
- GlaxoSmithKline
Vitamin C Deficiency
The Effect of Liposome Vitamin C on the Absorption and Metabolism of the Human Body.
To evaluate the difference between vitamin C in the form of oral liposomes and general vitamin C in a fixed period of time in plasma and urine.
- Trial name
- NCT04886752
- Testing
- vitamin C without liposome, liposomal process A vitamin C, liposomal process B vitamin C (Double Nutri™)
- Where
- Taiwan
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- TCI Co., Ltd.
Healthy, Pharmacokinetic
A Pharmacokinetic Study of Single Oral Doses of Six Different Vitamin C Product Forms
Vitamin C (ascorbic acid) is an essential nutrient linked to many aspects of basic human physiology. It is a potent antioxidant and involved as a cofactor for many human enzymes, and its extreme deficiency can lead to a fatal…
- Trial name
- NCT06471023
- Testing
- TP1, TP2, TP3
- Where
- Canada
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- dsm-firmenich Switzerland AG
Septic Shock, Critical Illness
Evaluation of Hydrocortisone, Vitamin C and Thiamine for the Treatment of Septic Shock
Despite recent medical advances, sepsis and septic shock remain a major cause of death. Sepsis is a syndrome with a wide array of physiologic, pathologic, and biochemical abnormalities.
- Trial name
- HYVITS (NCT03380507)
- Testing
- Triple therapy group
- Where
- Qatar
- Volunteers
- 106 people
- Sponsor
- Hamad Medical Corporation
Tolerance
Tolerance of Two Forms of Vitamin C in Acid-sensitive Adults
The purpose of this study is to compare the tolerance of two forms of vitamin C in adults with sensitivity to acidic foods.
- Trial name
- NCT01873820
- Testing
- Calcium ascorbate, Ascorbic acid
- Where
- Canada
- Volunteers
- 50 people
- Sponsor
- NBTY, Inc.
Acne Vulgaris
Acne Treatment With Active Oplon's Patches - 15-18 Years Old
The purpose of this study was to demonstrate the effect of short treatment with active OPLON patches on Acne.
- Trial name
- NCT01260766
- Testing
- Oplon Active Patch
- Where
- Israel
- Volunteers
- 50 people
- Sponsor
- Oplon-Pure Science Ltd.
Diarrhea, Infantile
Study on the Association Between Vitamin C Deficiency and Diarrhea in Children
Diarrheal disease is the second leading cause of death in children under five, althought it is both preventable and treatable. The causative factors of diarrheal diseases vary a lot from region to region (bacteria, viruses…
- Trial name
- VITAL (NCT05328037)
- Testing
- Blood sample collection
- Where
- 3 sites in Central African Republic, France and 1 more
- Volunteers
- 288 people, healthy volunteers welcome
- Sponsor
- Institut Pasteur
Acne Vulgaris
Acne Treatment With Active Patches Which Contains Azelaic Acid, Citric Acid,Salicylic Acid and 2% Ascorbic Acid
The purpose of this study was to demonstrate the effect of short treatment with active OPLON patches on Acne.
- Trial name
- NCT01179633
- Testing
- OPLON active patch
- Where
- Israel
- Volunteers
- 35 people
- Sponsor
- Oplon-Pure Science Ltd.
Basal Cell Carcinoma
Topical Vitamin C for Treatment of Basal Cell Cancer
Randomized coomparative trial of a 30% solution of ascorbic acid in 95% dimethylsulfoxide applied topically twice a day for 8 weeks vs 5% imiquimod cream in the treatment biopsy proven basal cell carcinomas inotherwise healthy…
- Trial name
- NCT04279535
- Testing
- Topical Ascorbic Acid
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- Center for Biomedical Research, Inc.
Temporomandibular Joint Disorders
Exploratory Study To Assess the Efficacy and Safety of a Triple Combination for Acute Pain Treatment in Patients With Temporomandibular Joint Disorders (TMJD).
The objetive of this study is to explore the efficacy and safety of a triple combination of ibuprofen, magnesium and ascorbic acid for acute pain treatment in TMJD patients
- Trial name
- NCT02602483
- Testing
- Ibuprofen, Magnesium, Ascorbic Acid
- Where
- 4 sites in Spain
- Volunteers
- 96 people
- Sponsor
- Spherium Biomed
Wrinkle, Skin Pigmentation
Prospective Study of Topical Vitamin C (THDA) Versus Topical Vitamin C (THDA) With Acetyl Zingerone
The purpose of this study is to asses the impact of topically applying a form of vitamin C known as tetrahexyldecyl Ascorbate (THDA) along with a novel anti-aging ingredient, acetyl zingerone, compared against applying THDA alone.
- Trial name
- NCT05779280
- Testing
- THDA + Acetyl Zingerone Topical Product, THDA
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Integrative Skin Science and Research
Pharmacokinetics
A Pharmacokinetics Study of Intravenous Ascorbic Acid
This is a Phase 1, single-dose study to evaluate the pharmacokinetics of intravenous Ascorbic Acid.
- Trial name
- NCT02534753
- Testing
- Ascor L 500® (Ascorbic Acid Injection, USP)
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- McGuff Pharmaceuticals, Inc.
Hyperpigmentation, Photodamaged Skin
A Multi-Center, Open-label Study Evaluate the Efficacy and Tolerability of a Dual Skincare Regimen Treatment for Facial Hyperpigmentation and Photodamaged Skin in Patients Exposed to Extrinsic Factors of Aging
This open-label, multi-center clinical trial was conducted to evaluate the dual skincare regimen of vitamin C serum and moisturizing sunscreen SPF 45 to improve facial hyperpigmentation and photodamage after 12 weeks of twice…
- Conditions
- Hyperpigmentation, Photodamaged Skin, Wrinkle, Fine Lines
- Trial name
- NCT05423873
- Testing
- Gentle Cleansing Lotion, Revision Skincare
- Where
- 3 sites in United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Revision Skincare
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
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
Skin Condition, Anti-Oxidative Stress
Efficacy Evaluation Study of Vitamin C and Glutathione Liquid Sachet
The objective of this study is to evaluate the effect of liquid vitamin C and glutathione supplements on human skin condition improvement and anti-oxidation.
- Trial name
- NCT07379216
- Testing
- Vitamin C and Glutathione Liquid Sachet
- Where
- Taiwan
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- TCI Co., Ltd.
Iron Deficiency Anemia
Nutrient Fortified Oat Drink
This study will follow a randomized, double-blind, placebo-controlled, parallel-group design to test if an oat beverage fortified with iron, zinc vitamin A and vitamin C will improve nutrient status and iron deficiency in young…
- Trial name
- NCT01418898
- Testing
- Dietary Intervention
- Where
- Philippines
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- PepsiCo Global R&D
Iron Deficiency Anemia
Effectiveness and Acceptability of LISEFEX® (Liposomal Iron With Vitamin C and Fiber) in People With Iron Deficiency Anemia.
Observational, descriptive, prospective, longitudinal, multicenter, non-interventionist and multicentric study in Mexican subjects diagnosed with mild to moderate iron deficiency anemia (ADH).
- Trial name
- NCT07483645
- Where
- Mexico
- Volunteers
- 74 people
- Sponsor
- Carnot Laboratories
Signs and Symptoms, Respiratory
Compare Effects of EpiCor and Vitamin C to Vitamin C Alone on the Common Cold or Influenza in Healthy Children
The purpose of the clinical study is to evaluate efficacy of regular daily, 12 weeks, consumption of EpiCor syrup containing EpiCor and vitamin C in non-vaccinated children 1-6 years old on preventing episodes of the common cold…
- Trial name
- NCT04093206
- Testing
- EpiCor and Vitamin C, Vitamin C
- Where
- 21 sites in Slovenia
- Volunteers
- 221 people, healthy volunteers welcome
- Sponsor
- Cargill
Healthy, Suboptimal Vitamin C Levels
The Impact of Qualia Vitamin C+ on Individuals With Suboptimal and Adequate 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 that have suboptimal…
- Conditions
- Healthy, Suboptimal Vitamin C Levels, Adequate Vitamin C Levels
- Trial name
- NCT07652346
- Testing
- Qualia Vitamin C+
- Where
- United States
- Volunteers
- 152 people, healthy volunteers welcome
- Sponsor
- Qualia Life Sciences