Clinical trials: Vitamin C Deficiency
HIV-1-infection, AIDS
Protect and Improve Cluster of Differentiation 4 (CD4) Cells and B Cells Lymphocytes
This is a plant-based medication used to increase the amount, protect, and reduce HIV's impact on T and B lymphocytes.
- Trial name
- NCT04770701
- Testing
- Ahah Drug
- Where
- Vietnam
- Sponsor
- Trieu, Nguyen Thi, M.D.
Vitamin C Deficiency, Scurvy
Study of Prevalence and Risk Factors of Hypovitaminosis C in Long Term Care Unit
The clinical finding of skin rashes which appear after a vitamin C deficiency in Long Term Care Unit leads us to believe that the institutional diet could predispose to this kind of deficiency.
- Trial name
- Vitamin C (NCT03807791)
- Testing
- Blood sample
- Where
- France
- Volunteers
- 100 people
- Sponsor
- Hospices Civils de Lyon
Chronic Hepatitis C
Vitamin D Deficiency in Subjects With Chronic Hepatitis C Compared to Healthy Volunteers
The objective of this study is to assess the prevalence of vitamin D deficiency in patients with chronic Hepatitis C compared to a matched control group of healthy individuals in the Sioux Falls area.
- Trial name
- NCT01274013
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Avera McKennan Hospital & University Health Center
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
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.
Vitamin C Deficiency
The Effect of Vitamin C on Quality of Life of Terminal Cancer Patients
This study determines whether high dose vitamin C is effective for quality of life in terminal cancer patients.
- Trial name
- NCT03224572
- Testing
- high-dose vitamin C 30gm, normal saline
- Where
- Taiwan
- Volunteers
- 40 people
- Sponsor
- National Taiwan University Hospital
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 (Without Anemia)
Effect of Chitin and Ascorbic Acid on Dietary Insect Iron Absorption
Iron is involved in many vital metabolic processes such as oxygen transport, electron transport in cells, DNA synthesis and repair, and muscle metabolism.
- Trial name
- INSECTE (NCT06822062)
- Testing
- Meal A, Meal B, Meal C
- Where
- Switzerland
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Swiss Distance University of Applied Sciences
Deficiency, Vitamin C
Hypovitaminosis C Prevalence and Risk Factors in an Acute Geriatric Unit
Vitamin C is essential for numerous biological processes as it acts as a cofactor in various hydroxylation reactions, but also as a powerful antioxidant.
- Trial name
- HYPO-VIT-C (NCT05668663)
- Testing
- Plasmatic Vitamin C concentrations (known as ascorbemia) on a single blood sample
- Where
- France
- Volunteers
- 434 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Vitamin D Deficiency
The Effect of Combinatorial Nutritional Supplementation on Immune Function in Healthy Older Adults
Many older adults do not get enough zinc, vitamin C and vitamin D, and this can be related to decreased ability to fight infection.
- Trial name
- NCT02876315
- Testing
- Redoxon VI
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Oregon State University
Hypercholesterolemia, Vitamin D Deficiency
Effects of Vitamin D on Lipids
The purpose of this study is to examine whether oral vitamin D supplementation in people with inadequate vitamin D concentrations will lower LDL-cholesterol and total cholesterol concentrations.
- Trial name
- NCT00723385
- Testing
- Vitamin D (1000 or 2000 IU/day)
- Where
- United States
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Patient Blood Management, Cardiac Surgery
Effect of the Combined Programme on Perioperative Anaemia（CPPA）
We used the preoperative intervention of iron sucrose in combination with human erythropoietin and vitamin C as an innovative combination therapy.
- Conditions
- Patient Blood Management, Cardiac Surgery, Iron Deficiency Anemia
- Trial name
- NCT05353348
- Testing
- Iron Sucrose, recombinant human erythropoietin, ascorbic acid, conventional treatment
- Where
- China
- Volunteers
- 110 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
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
Nutritional Anemia
A Study to Compare Liposomal Iron With Ferrous Ascorbate in the Treatment of Iron Deficiency Anemia in Children
This trial is designed to compare the efficacy of ferrous ascorbate versus liposomal iron for the treatment of nutritional iron deficiency anemia (IDA) amongst 6 to 59 months age children as determined by the increase in…
- Trial name
- NCT05957328
- Testing
- Ferric Pyrophosphate Liposomal, ferrous ascorbate
- Where
- India
- Volunteers
- 96 people
- Sponsor
- All India Institute of Medical Sciences
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
Hypovitaminosis, Vitamin C Abnormal
Vitamin C 4 Care Homes
Older people in care homes are one of the most vulnerable groups with respect to risk, morbidity and mortality of severe coronavirus disease-2019 (COVID-19).
- Trial name
- VITA-C4CARE (NCT05122481)
- Testing
- Vitamin C
- Where
- United Kingdom
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Aberdeen
Mortality, Hyperhomocysteinemia
5-methyltetrahydrofolate Survival and Inflammation in ESRD Patients
A randomized prospective study was done to determine whether i.v. 5-methyltetrahydrofolate vs oral folate improved survival in ESRD patients. Homocysteine, CRP, Lp(a), albumin, folates, vitamin B6 and B12 were checked.
- Conditions
- Mortality, Hyperhomocysteinemia, Inflammation
- Trial name
- NCT00626223
- Testing
- 5-MTHF (5-methyltetrahydrofolate), folic acid
- Where
- Italy
- Volunteers
- 341 people
- Sponsor
- IRCCS Azienda Ospedaliero-Universitaria di Bologna
Iron-deficiency
Measuring Dietary Iron Absorption From Edible Insects and Assessing the Effect of Chitin Content on Iron Bioavailability (Study 2)
Due to the growing world population, there is a need to develop viable ecological and nutritional alternatives to animal food products.
- Trial name
- Sustironable2 (NCT05328141)
- Testing
- Bread and butter, X.gideon, X.gideon with ascorbic acid
- Where
- Switzerland
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
HIV Infections
The Safety and Effectiveness of Different Doses of Vitamin C in HIV-Infected Patients
This is a study to evaluate the tolerance and antiviral effect of oral vitamin C in HIV-infected.
- Trial name
- NCT00001070
- Testing
- Oral Vitamin C
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Cognitive Function and Mood, Non-anaemic Iron Deficiency
Efficacy Evaluation of 16 Weeks' Dietary Supplementation With Iron Bis-glycinate Plus Vitamin C on Cognitive Function, Subjective Mood, Fatigue, Health and Well-being
Iron deficiency is the most prevalent nutritional deficiency worldwide with one in four estimated to be affected by iron deficiency anaemia.
- Trial name
- NCT04469010
- Testing
- Iron Bis-Glycinate Chelate and Vitamin C, Iron Bis-Glycinate Chelate
- Where
- United Kingdom
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- Northumbria University