Clinical trials: Vitamin C
Healthy Children
An Investigator-initiated Trial to Assess the Effectiveness of Three Different Gummies (Curcumin Gummies, Vitamin C Gummies, and Vitamin B Complex Gummies) in Healthy Children
An Open-Label, Three-Arm, Parallel, Investigator-Initiated Trial of Three Different Gummies (Curcumin Gummies, Vitamin C Gummies, and Vitamin B Complex Gummies) in Healthy Children.
- Trial name
- NCT05775237
- Testing
- Curcumin Gummies, Vitamin C Gummies, Multivitamin Gummies
- Where
- India
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- NovoBliss Research Pvt Ltd
Iron Deficiency
Effect of Vitamin C on Iron Absorption
Iron deficiency is a common health problem worldwide. Ferrous fumarate (a form of iron) is often added to foods in an effort to prevent iron deficiency.
- Trial name
- NCT00570895
- Testing
- Vitamin C
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Baylor College of Medicine
Tissue Modification After Vit c Injection
Effect of Vitamin C on Collagen Production in Comparison to Hereditary Gingival Fibromatosis: Histopathological Study
In this preliminary study, we propose that the intraepidermic injection of vit C can induce quantitative and qualitative modification of the gingival biotype.
- Trial name
- NCT07043985
- Testing
- biopsy
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Badr University
Iron Absorption, Gut Microbiota
Iron Absorption From a Wheat-based Instant Cereal:Gut and Stable Isotope Studies in Kenyan Infants
The aim of this study is to measure the effect of a prebiotic (high dose/low dose) mixture at different doses within a wheat-based instant cereal, on fractional iron absorption (FIA), gut microbiota and inflammation after three…
- Trial name
- NCT03894358
- Testing
- FeFum and 7.5 g prebiotic mixture, FeFum and 3 g prebiotic mixture, Fefum and no prebiotic mixture
- Where
- Kenya
- Volunteers
- 195 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
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
Diabetes Mellitus, Non-Insulin Dependent, Non-Insulin Dependent
Study of the Effects of Vitamin C on Patients With Type 2 Diabetes
Diabetes is a disease characterized by decreased sensitivity to the action on insulin to promote sugar (glucose) use and blood vessel relaxation (vasodilation) in muscle.
- Trial name
- NCT00001870
- Testing
- Acetylcholine
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- National Center for Complementary and Integrative Health (NCCIH)
Preeclampsia, Eclampsia
RCT of Antioxidant Therapy to Prevent Preeclampsia in Brazil
The perinatal morbidity and mortality rates for Brazil are five to ten-fold higher than those reported for upper income countries.
- Conditions
- Preeclampsia, Eclampsia, HELLP Syndrome, Pregnancy
- Trial name
- NCT00097110
- Testing
- Vitamin C and E
- Where
- Brazil
- Volunteers
- 734 people, healthy volunteers welcome
- Sponsor
- NICHD Global Network for Women's and Children's Health
Iron Deficiency, Anemia
The Efficacy of a Local Vitamin-C Rich Fruit (Guava) in Improving Iron Absorption From Mungbean Based Meals and Its Effect on Iron Status of Rural Indian Children (6-10 Years)
Iron deficiency is estimated to affect about one fifth of the world's population, and women and children are among the most severely affected.
- Trial name
- MUGUST_2 (NCT01191463)
- Testing
- Mung Bean Meal, Guava
- Where
- India
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Wageningen University
Palatally Impacted Canines
Efficacy of Injectable Vitamin C on Accelerating Canine Movement: A Clinical Study
efficacy of the injectable vitamin C to reduce the time of canine traction
- Trial name
- mesotherapy (NCT03260829)
- Testing
- vitamin C
- Where
- Egypt
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Cairo University
Postural Tachycardia Syndrome
Local Vasoconstriction in Postural Tachycardia Syndrome
The investigators study will determine how often blood flow regulation abnormalities and abnormalities of sympathetic regulation produced by nitric oxide, angiotensin-II, and oxidative stress occur in POTS and the mechanism(s) of…
- Trial name
- NCT01210430
- Testing
- Losartan, Ascorbic Acid (Vitamin C), Normal Saline
- Where
- United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- New York Medical College
Common Cold, Gastroenteritis
Echinacea, Propolis and Vitamin C for URI Prevention in Preschoolers
We hypothesize the herbal preparation will enhance the preschoolers' immune response and when taken prophylactically for 12 weeks will decrease episodes of upper respiratory infections and gastroenteritis in the active versus the…
- Trial name
- NCT00231218
- Testing
- dietary supplement--echinacea, propolis, and vitamin c
- Where
- United States
- Volunteers
- 104 people, healthy volunteers welcome
- Sponsor
- The Cleveland Clinic
Liver Cancer
The Role of the Vitamin D Receptor Gene Polymorphisms in Hepatocarcinogenesis
Previous data have suggested that vitamin D levels may influence cancer development. In particular, several single nucleotide polymorphisms have been described in the Vitamin D receptor( VDR gene), and some polymorphisms are…
- Trial name
- NCT02461979
- Testing
- The VDR genotype
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Sherief Abd-Elsalam
Preeclampsia
Antioxidant Supplementation in Pregnant Women With Low Antioxidant Status
The purpose of this study is to investigate antioxidants supplementation in pregnant women with low antioxidant status at 10-12 weeks gestation age in relation to adverse pregnancy outcome in randomized prospective study.
- Trial name
- NCT00388856
- Testing
- Vitamin C 1000mg and E 400IU
- Where
- Indonesia
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Showa University
Patellar Tendinopathy
Effect of Collagen/Vitamin C in Jumper's Knee; a RCT
Patellar tendinopathy (PT) is a tendon overuse injury with high prevalence rates in elite and recreational athletes. PT sometimes results in a prolonged absence from sport participation, hampering individuals to achieve their…
- Trial name
- Jumpfood (NCT05407194)
- Testing
- Collagen + vitamin C
- Where
- Netherlands
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Gelderse Vallei Hospital
Respiratory Tract Infection Viral
Echinacea Junior vs Vitamin C in Children 4-12 Years Old
Aim of this study is to investigate efficacy and safety of Echinaforce Junior Tablets (250mg) in comparison with Vitamin C tablets in the prevention of acute viral respiratory tract infections.
- Trial name
- NCT02971384
- Testing
- Echinaforce
- Where
- Switzerland
- Volunteers
- 203 people, healthy volunteers welcome
- Sponsor
- A. Vogel AG
Hyperoxaluria
Validation Testing for Plasma Oxalate Levels in the Biochemical Laboratory at the Galilee Medical Center, in Collaboration With the Biochemistry Laboratory at CHARITE Hospital in Berlin, and Testing the Relationship Between Oxalate Levels and Vitamin C Levels in Plasma
Background: Elevated plasma oxalate levels in various conditions, including: primary hyperoxaluria due to increased production in the liver, renal failure due to decreased renal excretion, intestinal diseases with fatty diarrhea…
- Trial name
- NCT06578754
- Testing
- This is an non-interventional study
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Western Galilee Hospital-Nahariya
Periodontitis, Polymorphism, Restriction Fragment Length
Vitamin D Receptor, Interleukin-1A and Interleukin-1B Gene Polymorphisms in Periodontitis
Background: The aim of the study is to find out the prevelance of VDR (rs731236), IL1B (rs1143634) and IL1A (rs1800587)gene polymorphisms in Turkish population and their association with stage III grade B / C periodontitis.
- Trial name
- NCT04806971
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Marmara University
Spinal Muscular Atrophy, Fragile X Syndrome
Early Check: Expanded Screening in Newborns
Early Check provides voluntary screening of newborns for a selected panel of conditions. The study has three main objectives: 1) develop and implement an approach to identify affected infants, 2) address the impact on infants and…
- Conditions
- Spinal Muscular Atrophy, Fragile X Syndrome, Fragile X - Premutation, Duchenne Muscular Dystrophy
- Trial name
- NCT03655223
- Testing
- Confirmatory Testing
- Where
- United States
- Volunteers
- 30,000 people, healthy volunteers welcome
- Sponsor
- RTI International
Vitamin C Anemia, Pregnancy Anemia
The Effect of Vitamin C for Iron Supplementation During Pregnancy with Risk of Anemia
Anemia is a common problem during pregnancy. Most studies have demonstrated that anemia during pregnancy have adverse effects on their pregnancy outcome, which is important and should pay attention to prevent and solve such…
- Trial name
- NCT05975125
- Testing
- Vitamin C 500 MG Oral Tablet
- Where
- Thailand
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Department of Medical Services Ministry of Public Health of Thailand
Post-acne Erythema
Comparison of Fractional CO2 Laser Monotherapy and Its Combination With Either Topical Vitamin C or Topical Timolol in the Treatment of Post-Acne Erythema: A Split Face Study
Acne is very common, especially among young adults. After acne heals, some people are left with persistent red or pink marks, called post-acne erythema (PAE).
- Trial name
- NCT07884565
- Testing
- topical Timolol maleate 0.5% eye drops, topical Vitamin C 15%, Fractional CO2 laser
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Cairo University