Clinical trials: Ascorbic Acid
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
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
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
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
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
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
Venous Disease Classification (CEAP): C2 or C3
EXPLORATORY ASSESSMENT OF THE EFFECTS OF CYCLO 3 ® FORT (Ruscus Extract, Hesperidin Methyl Chalcone, Ascorbic Acid) OR MICRONISED PURIFIED FLAVONOID FRACTION ON VASCULAR PARAMETERS AND BIOMARKERS IN WOMEN SUFFERING FROM CHRONIC VENOUS DISEASE (CEAP C2 OR C3), OVER 8 WEEKS
Chronic Venous Disorder is the most prevalent vascular disease. It is multifactorial pathology that has an important impact on quality of life and represents a significant public health concern, due to its very high frequency in…
- Trial name
- NCT02907320
- Testing
- CYCLO 3 ® FORT, MPFF
- Sponsor
- Pierre Fabre Medicament
Myelodysplastic Syndromes, Acute Myeloid Leukemia
Combining Active and Passive DNA Hypomethylation
This is a multicentre, randomized, parallel-group, placebo-controlled, double-blind phase 2 study of the efficacy and safety of oral vitamin C supplement in combination with azacitidine in patients with higher-risk MDS, CMML-2 or…
- Conditions
- Myelodysplastic Syndromes, Acute Myeloid Leukemia, Chronic Myelomonocytic Leukemia
- Trial name
- EVI-3 (NCT03999723)
- Testing
- Vitamin C
- Where
- 10 sites in Denmark, Sweden
- Volunteers
- 196 people
- Sponsor
- Kirsten Grønbæk
Ankle Fracture
The Effect of Vitamin c on Preventing Complex Regional Pain Syndrome (CRPS Type I) Following Ankle Fracture
The use of prophylactic treatment with vitamin c may prevent complex regional pain syndrome (CRPS)
- Trial name
- CRPS (NCT01338129)
- Testing
- vitamin c
- Where
- Israel
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Rabin Medical Center
Gingival Hyperpigmentation, Gingival Melanin Pigmentation
Vitamin C for Gingival Depigmentation
The purpose of this study is to evaluate the clinical and histopathological efficacy of topical vitamin C applications using three modalities (topical gel, microneedling , and mesotherapy) in gingival depigmentation.
- Trial name
- VitC-DePg (NCT07513727)
- Testing
- Topical Vitamin C ( control Arm), Vitamin C mesotherapy, Microneedling technique
- Where
- Egypt
- Volunteers
- 30 people
- Sponsor
- Al-Azhar University
Sepsis, Septic Shock
Vitamin C, Hydrocortisone and Thiamine in Patients With Septic Shock
A great interest exists regarding substances with an immunomodulatory effect for sepsis patients. Recent data have shown that intravenous vitamin C, together with corticosteroids and thiamine, could prevent progressive organ…
- Trial name
- NCT05192213
- Testing
- Vitamin C
- Where
- 12 sites in Brazil
- Volunteers
- 71 people
- Sponsor
- Hospital Sirio-Libanes
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
Pain, Acute
Impact of Vitamin C on Pain Detection and Tolerance Threshold
Non-opioid treatments are increasingly sought after for managing acute pain. Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) (e.g., Advil, Motrin, Naproxen) combined with acetaminophen (e.g., Tylenol) have become an alternative…
- Trial name
- NCT06971315
- Testing
- Vitamin C
- Where
- Canada
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Centre Integre Universitaire de Sante et Services Sociaux du Nord de l'ile de Montreal
Contrast Induced Nephropathy
Contrast Agent-associated Nephrotoxicity in Intensive Care Unit Patients
The use of N-acetylcysteine and ascorbic acid reduce the incidence of radiographic contrast agent induced reduction in renal function in Intensive Care Unit patients.
- Trial name
- ICU (NCT01017796)
- Testing
- N-acetylcysteine and ascorbic acid
- Volunteers
- 100 people
- Sponsor
- University of Thessaly
Sepsis, Vitamin C
Lessening Organ Dysfunction With VITamin C
LOVIT is a multicentre concealed-allocation parallel-group blinded randomized controlled trial to ascertain the effect of high-dose intravenous vitamin C compared to placebo on mortality or persistent organ dysfunction at 28 days…
- Conditions
- Sepsis, Vitamin C, Intensive Care Unit, COVID-19
- Trial name
- LOVIT (NCT03680274)
- Testing
- Vitamin C, Control
- Where
- Canada
- Volunteers
- 872 people
- Sponsor
- Université de Sherbrooke
Immediate Dental Implant
The Effect Of Hyaluronic Acid And Melatonin With Systemic Administration of Vitamin C On Implant Stability After Immediate Implant in Anterior Region
The concept of immediate implant placement at the time of tooth extraction was first introduced by Schulte et al. on animal studies.
- Trial name
- NCT03804177
- Testing
- immediate implant placement with melatonin hyaluronic acid vit C, immediate implant placement without melatonin hyaluronic acid vit C
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Cairo University
Endothelial Function, Cognition
Cognitive and Cerebral Blood Flow Effects of Vitamin C
This investigation is interested in the effects of high dose vitamin C on endothelial function in healthy humans. A high fat meal will be utilized to induce endothelial dysfunction.
- Trial name
- NCT01055418
- Testing
- Vitamin C
- Where
- United Kingdom
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Covid19
Vitamin D, Omega-3, and Combination Vitamins B, C and Zinc Supplementation for the Treatment and Prevention of COVID-19
The NUTROVID Factorial Trials The purpose of the NUTROVID-Prevent and NUTROVID-Treat Factorial Trials is to determine whether Vitamin B Complex, Vitamin C, and Zinc; Vitamin D; and Omega3, taken at dosages approximating…
- Trial name
- NUTROVID (NCT04828538)
- Testing
- Vitamin D, Omega DHA / EPA, Vitamin C, Vitamin B complex and Zinc Acetate
- Where
- Mexico
- Volunteers
- healthy volunteers welcome
- Sponsor
- Hospital de la Soledad