Clinical trials: Vitamin C
Upper Respiratory Tract Infection
Combined Vitamins and Minerals Decrease Incidence of Upper Respiratory Tract Infections in Older Persons
Nutrient deficiency and immune dysfunction in older persons result in high prevalence of acute respiratory infection,which can lead to impaired nutritional status.
- Trial name
- NCT01484756
- Testing
- daily multi micronutrient supplement
- Where
- Indonesia
- Volunteers
- 270 people, healthy volunteers welcome
- Sponsor
- Trisakti University
Primary Postpartum Haemorrhage
Comparative Study on the Effects of Sublingual Misoprostol in Addition to Standard AMTSL in Low Risk Parturients in LASUTH, Ikeja.
Postpartum haemorrhage is the leading cause of maternal haemorrhage globally. With active management of labour 3 to 16.5% of parturients still experience postpartum haemorrhage.
- Trial name
- NCT02424201
- Testing
- Misoprostol, vitamin c
- Volunteers
- 660 people, healthy volunteers welcome
- Sponsor
- Lagos State 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
Bowel Preparation, Colonoscopy
Impact of Time Intervals of Preparation on Quality and Tolerance of the Bowel Preparation
The purpose of this study is to determine optimal time intervals for preparation before colonoscopy using different formulas.
- Trial name
- NCT02908919
- Testing
- Colonoscopy
- Where
- 2 sites in Czechia
- Volunteers
- 480 people
- Sponsor
- Faculty Hospital Kralovske Vinohrady
Digestive System Disease, Neoplasms
Multidisciplinary Evaluation of Elderly Patients With Digestive Cancer (EPODIG-G)
This is a monocentric, comparative, open-label, randomized parallel group study enrolling elderly subjects hospitalized in Strasbourg Europe Cancerology Institute (ICANS), starting chemotherapy or targeted therapy for the…
- Trial name
- EPODIG-G (NCT05066139)
- Testing
- EPODIG-G program (coordination of supportive care)
- Where
- France
- Volunteers
- 144 people
- Sponsor
- Centre Paul Strauss
Anemia, Iron Deficiency
Effectiveness of Iron-Fortified Milk on Iron Status and Anemia in Young Children in Mexico
Iron deficiency and anemia in infants and young children impair neurodevelopment. Efficacious interventions for reducing the prevalences of iron deficiency and anemia, under controlled conditions, are available.
- Conditions
- Anemia, Iron Deficiency, Stunting
- Trial name
- NCT00508131
- Testing
- Whole Cows Milk
- Where
- Mexico
- Volunteers
- 798 people, healthy volunteers welcome
- Sponsor
- Instituto Nacional de Salud Publica, Mexico
Healthy
Primary Irritation Patch Test (PIPT) Study Conducted at NovoBliss Research for Shared Panel
This is a single-center, evaluator-blinded study in healthy adult human subjects. Single 24-hour application of sponsor(s) provided test products along with positive and negative controls will be kept in contact with the skin of…
- Trial name
- NCT05642702
- Testing
- Peptide complexed HA Age Defying Gel with Vitamin C & Niacinamide, Peptide complexed HA Age Defying Gel with Natural Extracts, Peptide complexed HA Age Defying Gel with Vitamin C & Natural Extracts
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- NovoBliss Research Pvt Ltd
Critical Care
Effect of Glutamine and Vitamin C on Interleukin-6 and Clinical Outcomes in Surgical Intensive Care Unit Patients
Background \& Aims. Glutamine is a conditional essential amino acid that was found in reduced plasma amount in Intensive Care Unit (ICU) patients.
- Trial name
- NCT03166956
- Testing
- Glutamine and vitamin C enteral supplement
- Volunteers
- 41 people
- Sponsor
- Chung Shan Medical University
Malaria
Study to Assess Efficacy of Artemether-lumefantrine Prophylaxis Against Forest Malaria in Cambodia (PAL_Cambodia)
In the Greater Mekong Subregion (GMS) adults are at highest risk for malaria. The most relevant disease vectors bite during daytime and outdoors which makes forest work a high-risk activity for malaria.
- Trial name
- PAL_Cambodia (NCT04041973)
- Testing
- Artemether-lumefantrine, Multivitamin
- Where
- 2 sites in Cambodia
- Volunteers
- 1,480 people, healthy volunteers welcome
- Sponsor
- University of Oxford
Pneumonia, Viral, Covid19
Antioxidants as Adjuvant Therapy to Standard Therapy in Patients With COVID-19
Introduction: SARS-CoV2 infection produces severe pneumonia with pulmonary alveolar collapse. There is no specific treatment to date.
- Conditions
- Pneumonia, Viral, Covid19, ARDS, Oxidative Stress
- Trial name
- ANTIOX-COVID (NCT04570254)
- Testing
- Vitamin C, Vitamin E, Melatonin
- Where
- Mexico
- Volunteers
- 110 people
- Sponsor
- Unidad Temporal COVID-19 en Centro Citibanamex
Acute Kidney Injury
The Impact of Vitamin C on Postoperative Acute Kidney Injury in Risk Patients Undergoing Valvular Heart Surgery
In cases of cardiac surgery or sepsis which cause inflammation, oxidative stress, endothelial injury and vasoplegia, serum vitamin C concentration is sharply decreased.
- Trial name
- NCT04210453
- Testing
- Vitamin C, Control (Normal saline)
- Where
- South Korea
- Volunteers
- 264 people
- Sponsor
- Yonsei University
Parent-Child Relations, Behavioral Intervention
Mobile Health (mHealth) Tools to Improve Delivery Quality of a Family Home Visiting Intervention
This study will pilot a family-focused, behavioral health intervention while also developing and piloting mHealth tools to support Community Health Workers (CHWs) in Sierra Leone.
- Conditions
- Parent-Child Relations, Behavioral Intervention, Exposure to Violent Event, Child Development
- Trial name
- NCT04481399
- Testing
- Family Strengthening Intervention for Early Childhood Development, Community Health Worker Routine
- Where
- Sierra Leone
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Boston College
Colon Polyp, Colon Adenoma
Study Comparing the Bowel Cleansing Efficacy of PLENVU® Versus SELG-ESSE® Using a 2-Day Split Dosing Regimen.
This study is a multicentre randomized parallel group phase IV study comparing the bowel cleansing efficacy, safety and tolerability of PLENVU® (a 1 litre PEG Bowel Cleansing Solution) versus SELG-ESSE® (a 4 litre PEG Bowel…
- Conditions
- Colon Polyp, Colon Adenoma, Colon Lesion
- Trial name
- NCT03742232
- Testing
- PEG3350, Macrogol 4000
- Where
- 5 sites in Italy
- Volunteers
- 399 people
- Sponsor
- Istituto Clinico Humanitas
Diarrhea, Stunting
Zinc-MNP Trial for Prevention of Diarrhea and Promotion of Linear Growth
This is a randomized, double-blind, community-based efficacy trial of different doses, forms, and frequencies of zinc supplementation for the prevention of diarrhea and promotion of linear growth among children 9-11 months of age…
- Trial name
- NCT03406793
- Testing
- Standard MNP, High zinc, low iron MNP, High zinc, low/no iron on alternating days
- Where
- Bangladesh
- Volunteers
- 2,886 people, healthy volunteers welcome
- Sponsor
- UCSF Benioff Children's Hospital Oakland
Diabetes Mellitus
Metformin Usage Index and Vitamin B12 Status in Egyptian Type 2 Diabetic Patients
Current data estimated that 451 million people, (age 18-99 years) suffered from diabetes world wide in 2017, and are expected to rise to 693 million by 2045.
- Trial name
- NCT04882332
- Testing
- sampling for diabetes control parameters, Sampling for vitamin B12 level
- Where
- Egypt
- Volunteers
- 108 people
- Sponsor
- Cairo University
Hypertrophy
Antioxidant Vitaminas and Hypertrophy Adaptations to Resistance Training
This investigations aims to investigate whether supplementation with antioxidant vitamins (vitamin C and vitamin E) can influence, enhancing or blocking, the hypertrophic adaptations caused by strength training in sedentary…
- Trial name
- NCT04828642
- Testing
- Vitamin C and vitamin E
- Where
- Spain
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Universidad Europea de Madrid
Anemia
School-Based Assessment of Micronutrient Interventions in Adolescents (SAMIA) in Zanzibar
This purpose of this study is to assess effects of iron and folic acid supplementation and multiple micronutrient supplementation on anemia status and school performance/attendance among in-school adolescents in Zanzibar…
- Trial name
- SAMIA (NCT05104554)
- Testing
- Iron and folic acid (IFA), Multiple Micronutrient Supplement (MMS)
- Where
- Tanzania
- Volunteers
- 2,480 people, healthy volunteers welcome
- Sponsor
- Harvard School of Public Health (HSPH)
Advanced Gastric Carcinoma
Efficacy and Safety oF FErric CarboxymalTose in Patients With Advanced Gastric Cancer(EFFECT-AGC)
The main objective of this study is to evaluate the efficacy and safety of IV FCM(ferric carboxymaltose) in patients with AGC receiving palliative chemotherapy.
- Trial name
- NCT05226169
- Testing
- Ferinject, Conservative management
- Where
- South Korea
- Volunteers
- 330 people
- Sponsor
- Asan Medical Center
Sepsis, Severe, Septic Shock
Metabolic Resuscitation Using Ascorbic Acid, Thiamine, and Glucocorticoids in Sepsis.
This study has been created to compare the addition of intravenous (IV) vitamin C, thiamine, and hydrocortisone to the usual standard of care of sepsis and septic shock.
- Trial name
- ORANGES (NCT03422159)
- Testing
- Ascorbic Acid, Thiamine, Hydrocortisone
- Where
- 2 sites in United States
- Volunteers
- 140 people
- Sponsor
- Community Medical Center, Toms River, NJ
Kidney Stones, Kidney Calculi
Endogenous Oxalate Synthesis in Idiopathic Calcium Oxalate Kidney Stone Disease
The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased production of oxalate by the body, which would lead to increased urinary excretion of oxalate.
- Conditions
- Kidney Stones, Kidney Calculi, Urolithiasis, Urolithiasis, Calcium Oxalate
- Trial name
- NCT06989320
- Testing
- Low-oxalate diet and glycolate dosing, Oral glycolate dosing, Oral 13C- ascorbic acid dosing
- Where
- 2 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
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