Clinical trials: Vitamin C
Fatigue
Efficacy of Vitamin C Injection on Fatigue in Workers After Work
Fatigue is one of the most frequently observed symptoms for company workers, and oxidative stress is regarded as one of its cause.
- Trial name
- NCT00633581
- Testing
- Ascorbic acid (Vitamin C), Normal saline
- Where
- South Korea
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- DongGuk University
Breast Cancer, Genitourinary Syndrome
Radiofrequency and Exercise-based Rehabilitation on Symptoms Associated With Pelvic Floor Dysfunctions in Breast Cancer
Breast cancer has a high impact, affecting 2.3 million women worldwide in 2022. In Spain, there were 40,203 new cases in 2023. In addition to the economic and social costs, patients suffer genitourinary dysfunctions due to cancer…
- Conditions
- Breast Cancer, Genitourinary Syndrome, Radiofrequency, Physical Exercise
- Trial name
- NCT06694519
- Testing
- manometry through the PHENIX series device (model: PHENIX LIBERTY; manufacturer: ELECTRONIC CONCEPT LIGNON INNOVATION, Montpelier, France)., PFIQ-20 questionnaire (Pelvic Floor Impact Questionnaire Short Form), ICIQ-SF (International Consultation on Incontinence Questionnaire - Short Form)
- Where
- Spain
- Volunteers
- 117 people
- Sponsor
- SERGIO MONTERO NAVARRO
Septic Shock
Vitamin C Deficiency in Septic Shock
Objectives: investigators aim to study the effect of addition of vitamin C as a part of treatment in septic shock patients on: Hemodynamics, Inflammation status and ICU outcome.
- Trial name
- NCT06224881
- Testing
- Ascorbic acid
- Where
- Egypt
- Volunteers
- 150 people
- Sponsor
- Cairo University
Spinal Cord Injury
Efficacy and Safety of Standard Oral Colonoscopic Preparations With or Without Neostigmine Compared to Pulse-Irrigation Colonic Lavage
The annual incidence of colorectal cancer in the US during 2005 was approximately 150,000 cases and this neoplasm claimed 56,000 lives (American Cancer Society).
- Trial name
- NCT00745095
- Testing
- Neostigmine
- Where
- United States
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- US Department of Veterans Affairs
Coenzyme Q Deficiency
Comparative Single-dose Bioavailability Clinical Study of Different Coenzyme Q10 Products
The randomized, open-label, three period crossover single-dose bioavailability study with three coenzyme Q10 products
- Trial name
- NCT05272228
- Testing
- Dietary supplement - standard product, Dietary supplement - Investigational product IP1, Dietary supplement - Investigational product IP2
- Where
- Slovenia
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University of Primorska
Myelodysplastic Syndromes, Chronic Myelomonocytic Leukemia-1
Epigenetics, Vitamin C, and Abnormal Blood Cell Formation - Vitamin C in Patients With Low-Risk Myeloid Malignancies
The primary purpose of this multi-centre, randomized, placebo-controlled, double-blind phase II study is to investigate if oral vitamin C may change the biology of low-risk myeloid malignancies; i.e., clonal cytopenia of…
- Conditions
- Myelodysplastic Syndromes, Chronic Myelomonocytic Leukemia-1, Cytopenia
- Trial name
- EVITA (NCT03682029)
- Testing
- Vitamin C (ascorbic acid)
- Where
- 5 sites in United States, Denmark
- Volunteers
- 109 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
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
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.
Type 1 Diabetes Mellitus
Effects of Vitamin C and E on Endothelial Function in Adolescent Diabetes
The endothelium is the lining of the blood vessels that helps prevent damage to the vessels. The endothelium does not function as well as it should in adolescents with type 1 diabetes. This causes future diabetes complications.
- Trial name
- NCT02019186
- Testing
- Vitamin C, Vitamin E
- Where
- United States
- Volunteers
- 9 people
- Sponsor
- Nationwide Children's Hospital
Healthy Nutrition
RiteStart Personal Nutritional Dietary Study
This study is undertaken to explore the effects of a bovine colostrum containing MVM (RiteStart) on different health aspects by quantitatively assessing relevant serum and saliva biomarkers, over a 12-week period in participants.
- Trial name
- RESPOND (NCT05130905)
- Testing
- RiteStart Supplement
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- 4Life Research, LLC
Pregnancy, Protein-Energy Malnutrition
NutFish and Nutrient Supplementation in Pregnancy Class to Improve Maternal and Birth Outcomes
This study evaluates the intervention of Nut Fish based food, micro nutrients supplementation and pregnancy class to improve maternal and birth outcome. This is cluster randomized trial with two arms.
- Conditions
- Pregnancy, Protein-Energy Malnutrition, Anemia
- Trial name
- NCT02959125
- Testing
- NutFish Based Food Supplementation, Multiple micronutrients, Health Education in Pregnancy Class
- Where
- 2 sites in Indonesia
- Volunteers
- 72 people
- Sponsor
- Semarang Health Polytechnic
Raynaud Disease, Raynaud Phenomenon
Investigation of the Rewarming og the Fingers After Cooling and the Autonomic Nervous System in Raynaud's Phenomenon
Patients with Raynaud's disease have an increased tendency of chest pain and migraine, and studies indicate that the disease might be associated with increased cardiovascular morbidity and mortality.
- Conditions
- Raynaud Disease, Raynaud Phenomenon, Hand and Arm Vibration Syndrome, Diabetes Mellitus
- Trial name
- RaynAUT (NCT03094910)
- Testing
- Examination of vibration perception threshold in fingertips, Ewing's tests, Tilt table test
- Where
- Denmark
- Volunteers
- 174 people, healthy volunteers welcome
- Sponsor
- Herlev Hospital
HELICOBACTER PYLORI INFECTIONS, Helicobacter Infection
Vonoprazan vs Proton Pump Inhibitor With Vitamin D or Probiotics Based Triple Therapy for Eradication of Helicobacter Pylori Infection
Helicobacter pylori is a Gram-negative, spiral-shaped bacterium that infects up to 50% of the world's population, residing in the gastric mucosa and using the mucus layer for protection from the stomach's high acidity.
- Conditions
- HELICOBACTER PYLORI INFECTIONS, Helicobacter Infection, Helicobacter Pylori Gastrointestinal Tract Infection, Helicobacter Pylori Infected Patients
- Trial name
- NCT07293910
- Testing
- Vonoparazan, Vitamin D, Probiotic
- Where
- Egypt
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- Tanta University
Stage IV Colorectal Cancer
Research Study of IV Vitamin C in Combination With Irinotecan vs Irinotecan Alone for Advanced Colorectal CA
This protocol is a phase I/II, study of ascorbic acid (AA) infusions combined with treatment with irinotecan versus treatment with irinotecan alone in patients with recurrent or advanced colorectal cancer who have failed at least…
- Trial name
- NCT01550510
- Testing
- Ascorbic Acid, Irinotecan
- Where
- United States
- Volunteers
- 4 people
- Sponsor
- Thomas Jefferson University
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
Autoimmune Diseases, Systemic Inflammatory Process
Vitamin D and Fish Oil for Autoimmune Disease, Inflammation and Knee Pain
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is a randomized clinical trial in 25,871 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (Omacor® fish…
- Conditions
- Autoimmune Diseases, Systemic Inflammatory Process, Knee Pain Chronic, Osteoarthritis
- Trial name
- VITAL (NCT01351805)
- Testing
- Fish Oil, Vitamin D
- Where
- United States
- Volunteers
- 25,871 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
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.
Cardiovascular Disease Prevention
Impact of a Nutritional Supplement on Metabolic Health
There are prevalent micronutrient and fiber deficiencies in a significant proportion of US population, particularly among the overweight or obese.
- Trial name
- CHORIBar (NCT02239198)
- Testing
- Nutrition bar
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- UCSF Benioff Children's Hospital Oakland
COVID-19 Pandemic
Adjuvant Use Of Colchicine With The Standard Therapy In Moderate And Severe Corona Virus Disease-19 Infection
The study included 2 arms Colchicine group: Colchicine + standard therapy of COVID-19 Control group: Standard therapy of COVID-19
- Trial name
- NCT05151614
- Testing
- Colchicine 0.5 MG
- Where
- Iraq
- Volunteers
- 160 people
- Sponsor
- University of Baghdad
Kidney Stone
Oxalate Formation From Ascorbic Acid
The purpose of this basic research study is to determine the contribution of endogenous ascorbic acid (AA) turnover to urinary oxalate excretion in both normal BMI and obese adult non-stone formers and calcium oxalate stone…
- Trial name
- NCT04603898
- Testing
- Low Oxalate Diet, Carbon-13 Ascorbic Acid Oral Load
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
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