Clinical trials: Vitamin C
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
Nutrition, Healthy
Effects of Liposomal Encapsulation on Vitamin C Absorption and Metabolism
Vitamin C is an important antioxidant in the human body and plays many important roles. It is currently known that vitamin C has the functions of treating scurvy, assisting in collagen synthesis, whitening, and increasing…
- Trial name
- NCT06372171
- Testing
- Satge 1, Stage 2
- Where
- Taiwan
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- National Yang Ming Chiao Tung University
Healthy Subject, Immunity
The Effect of the Consumption of 4 Botanical Extracts on Immunity in Healthy Adults (B-4-Immune)
This study will evaluate the capacity of botanical extracts to modulate immune mechanisms compared to a placebo group in healthy volunteers.
- Trial name
- B-4-Immune (NCT05117385)
- Testing
- Botanical extract
- Where
- France
- Volunteers
- 115 people, healthy volunteers welcome
- Sponsor
- Givaudan France Naturals
Healthy Volunteers
Collagen Vitamin C Dose Response Performance
Previous work has shown that gelatin supplementation could increase collagen synthesis in humans. In this study subjects consume placebo, 5 or 15 g of gelatin with a standard amount of vitamin C (48 mg) 1 hour before 6 minutes of…
- Trial name
- Collagen (NCT03293004)
- Testing
- Hydrolyzed collagen, Vitamin C, Optimized Hydrolyzed Collagen and Vitamin C
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Parkinson Disease
Effects of Coenzyme Q10 (CoQ) in Parkinson Disease
The purpose of this study is to evaluate the safety and effectiveness of high dosages of Coenzyme Q10 in slowing clinical decline in people who have early Parkinson disease.
- Trial name
- QE3 (NCT00740714)
- Testing
- Coenzyme Q10 with vitamin E
- Where
- 68 sites in United States, Canada
- Volunteers
- 600 people
- Sponsor
- Weill Medical College of Cornell University
Allergic Rhinitis
The Effect of Exercises on Physiological Changes and Clinical Symptoms in Allergic Rhinitis Patients
1. Moderate exercise training decrease cytokine response and rhinitis symptoms in patients with allergic rhinitis 2. Moderate exercise training combined with vitamin C supplementation decrease cytokine response and rhinitis…
- Trial name
- NCT02123914
- Testing
- Aerobic exercise with Vit. C, Aerobic exercise, No exercise
- Where
- Thailand
- Volunteers
- 27 people
- Sponsor
- Chulalongkorn University
Stress
Differences by Sex and Genotype in the Effects of Stress on Executive Functions
The aim of this project is to test the effects of an environmental factor (mild stress) on prefrontal cortex (PFC) and the cognitive functions that depend on PFC (collectively called executive functions [EFs]), and to test our…
- Trial name
- NCT04273880
- Testing
- Methylphenidate, Vitamin C
- Where
- Canada
- Volunteers
- 146 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Post-acute COVID-19 Syndrome
The Effect of Micellized Food Supplements on Health-related Quality of Life in Patients With Post-acute COVID-19 Syndrome.
Food supplements like curcumin and boswellia serrata have been used traditionally for anti-inflammatory purposes. A well-known problem of these substances in their natural form is the low bioavailability.
- Trial name
- NCT05150782
- Testing
- Curcumin/Boswellia Serrata/Ascorbic acid mixture
- Volunteers
- 32 people
- Sponsor
- PhysioMetrics
Gastroenteritis
Emergency Department Probiotic Treatment of Pediatric Gastroenteritis
The objective of this study is to determine for previously healthy children who present to a Canadian Emergency Department (ED) with acute gastroenteritis (infection or irritation of the digestive tract); if compared with…
- Trial name
- NCT01853124
- Testing
- Lacidofil
- Where
- 6 sites in Canada
- Volunteers
- 886 people
- Sponsor
- Dr. Stephen Freedman
Anemia, Skin Condition
The Efficacy of Minayo Iron-rich Nutritional Gummies on Female Anemia, Skin Condition and Qi-blood Deficiency Syndrome
The goal of this randomized, double-blind, placebo controlled study is to learn about the efficacy of Minayo Iron-rich Nutritional Gummies on females who are aged 18-45 and suffer nutritional Anemia, skin condition and Qi-blood…
- Conditions
- Anemia, Skin Condition, Qi-blood Deficiency Syndrome
- Trial name
- NCT06869824
- Testing
- Minayo Iron-rich Nutritional Gummies, Common Gummies
- Where
- China
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Hangzhou Agile Groups Network Technology Co., Ltd.
Skin Aging
Comparison of Redermic, Rejuva-A and Combination of Both Redermic and Rejuva-A in Subjects With Signs of Aging
Facial skin aging is a complex process combining factors such as sun exposure, smoking and those that are believed to be inherited.
- Trial name
- NCT00974480
- Testing
- Redermic, Tretinoin (Rejuva-A)
- Where
- Canada
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Cosmetique Active International
Cardiovascular Disease
Nitric Oxide Bioavailability and Early Life Stress (NO-Stress)
Cardiovascular disease is the leading cause of death in the United States. Other studies have shown that stress, early in life, could be a risk factor for cardiovascular disease, later in life.
- Trial name
- NO-Stress (NCT02115724)
- Testing
- Antioxidant cocktail, Biopsy, NMD; 0.4mg sub-lingual nitroglycerin spray
- Where
- United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- Augusta University
Corona Virus Infection, Covid19
Clinical Study Designed to Evaluate the Effect of CimetrA in Patients Diagnosed With COVID-19
A preparation of CimertrA, comprising Artemisinin, Curcumin, and Boswellia, and Vitamin C in a nanoparticular formulation, is proposed as a treatment for the disease associated with the novel coronavirus SARS-CoV-2.
- Conditions
- Corona Virus Infection, Covid19, SARS-CoV Infection
- Trial name
- CimetrA (NCT04802382)
- Testing
- Confirm SARS-CoV-2 infection, Physical Examination, Vital Signs
- Where
- 2 sites in Israel
- Volunteers
- 252 people
- Sponsor
- MGC Pharmaceuticals d.o.o
Chronic Hypoparathyroidism
Cardiovascular Effects of Parathyroid Hormone Analogues in Chronic Hypoparathyroidism
The goal of this study is to evaluate cardiovascular effects of long-acting parathyroid hormone (PTH) analogues in adults with chronic hypoparathyroidism.
- Trial name
- PaTH CV (NCT07707479)
- Testing
- Arterial stiffness in the aorta by measurement of pulse wave velocity, Central blood pressures and reflected waves in the aorta, Carotid and femoral intima-media thickness (IMT) and number of carotid or femoral plaques
- Where
- 2 sites in Greece
- Volunteers
- 210 people, healthy volunteers welcome
- Sponsor
- National and Kapodistrian University of Athens
Multiple Myeloma and Plasma Cell Neoplasm
Arsenic Trioxide and Ascorbic Acid Combined With Bortezomib, Thalidomide, and Dexamethasone in Treating Patients With Relapsed or Refractory Multiple Myeloma or Plasma Cell Leukemia
RATIONALE: Drugs used in chemotherapy, such as arsenic trioxide and dexamethasone, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing.
- Trial name
- NCT00258245
- Testing
- ascorbic acid, arsenic trioxide, bortezomib
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- Barbara Ann Karmanos Cancer Institute
Distal Radius Fracture, Vitamine c
Vitamin c Supplementation in the Prevention of CRPS Following Distal Radius Fractures
Complex Regional Pain Syndrome type 1 is a pain syndrome that develops after a trauma, surgery, or idiopathically. The incidence after distal radius varies significantly in the literature.
- Conditions
- Distal Radius Fracture, Vitamine c, Prophylaxis
- Trial name
- NCT05842395
- Testing
- Vitamin C
- Where
- Syria
- Volunteers
- 220 people, healthy volunteers welcome
- Sponsor
- Damascus University
Aggression
The Impact of Supplementation With Multi-vitamins/Minerals, With and Without Fatty Acids, on Impulsivity and Aggression
There is a series of well designed studies that have reported, in those with a history of anti-social behavior, that supplementation with vitamins / minerals, omega-3 fatty acids (n-3 FA), or both, reduces the incidence of…
- Trial name
- NCT01558193
- Testing
- Multi-vitamin/mineral, Docosahexaenoic acid, DHA plus vitamins/minerals
- Where
- United Kingdom
- Volunteers
- 202 people, healthy volunteers welcome
- Sponsor
- Swansea University
Pneumonia Childhood, Vitamin C
Effect of Vitamin C on Length of Hospital Stay in Children With Severe Pneumonia
Severe pneumonia is a common and serious illness in young children and often requires hospital admission. This clinical trial aims to find out whether adding vitamin C to standard treatment can reduce the length of hospital stay…
- Conditions
- Pneumonia Childhood, Vitamin C, Hospital Stay Time
- Trial name
- NCT07414693
- Testing
- Antibiotics administration, Vitamin C
- Where
- Pakistan
- Volunteers
- 90 people
- Sponsor
- Children's Hospital and Institute of Child Health, Multan
Minimal Hepatic Encephalopathy
Antioxidants and Zinc Improving Minimal Hepatic Encephalopathy In Truck Drivers; a Pilot Study
Minimal hepatic encephalopathy (MHE) can have a far-reaching impact on quality and ability to function in daily life and may progress to overt Hepatic Encephalopathy.
- Trial name
- NCT02520817
- Testing
- 175 mg zinc gluconate, 50000 IU vitamin A, 500 mg vitamin C and 100 mg vitamin E once daily plus lactulose; dose 30-60 ml/day for 3 months, Lactulose
- Where
- Egypt
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Melanin Hyperpigmentation
Vitamin C Depigmenattion Versus Conventional Technique
Although physiologic gingival hyperpigmentation is not a pathologic condition, it is considered one of the main esthetic problems in dentistry.
- Trial name
- NCT03719274
- Testing
- vitamin c depigementation
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
The first 1,020 results can be paged through. Add a filter or change the sort order to reach the rest.