Clinical trials: Vitamin C
Type 2 Diabetes
The Effect of Lysulin on Glycemic Control and Advanced Glycation
The primary objective is to determine whether 12 weeks of treatment with Lysulin, compared to placebo, causes a reduction from baseline in the plasma levels of glucose, hemoglobin A1c (HbA1c) and Advanced Glycation Endproducts…
- Trial name
- NCT04234581
- Testing
- Lysulin
- Where
- 2 sites in United States
- Volunteers
- 59 people
- Sponsor
- Juraj Koska
Male Infertility
Is a Carnitine Based Food Supplement (PorimoreTM) for Infertile Men Superior to Folate and Zinc With Regard to Pregnancy Rates in Intrauterine Insemination Cycles?
Many cases of male infertility are poorly understood and regarded as unexplained. Therefore, a etiological treatment for this condition can not be offered in most cases.
- Trial name
- NCT01075334
- Testing
- Porimore - A Carnitine based food supplement, Zinc and Folate Supplementation
- Where
- Israel
- Volunteers
- 100 people
- Sponsor
- Shaare Zedek Medical Center
Dental Caries, White Spot Lesion
A Randomized Controlled Trial of Vitamin D Supplementation on Salivary Biomarkers and Cariogenic Oral Microbiome
The goal of this clinical trial is to compare the treatment effect of vitamin D supplementation and topical fluorides in the population having vitamin D deficiency and Initial Carious Lesions (ICL) on the progression of ICL in…
- Conditions
- Dental Caries, White Spot Lesion, Initial Caries, Incipient Enamel Caries
- Trial name
- Incipient (NCT06172764)
- Testing
- Vitamin D supplements along with behavioral modification, Topical fluoride application and Vitamin D supplements along with behavioral modification, Topical fluoride application along with behavioral modification
- Where
- Pakistan
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Dow University of Health Sciences
Preeclampsia
Combined Antioxidant and Preeclampsia Prediction Studies (CAPPS)
Preeclampsia is one of the most common complications of pregnancy and is characterized by high blood pressure and protein in the urine. This can cause problems in the second half of pregnancy for both the mother and fetus.
- Trial name
- CAPPS (NCT00135707)
- Testing
- Dietary Supplement/Vitamins
- Where
- 16 sites in United States
- Volunteers
- 10,154 people, healthy volunteers welcome
- Sponsor
- The George Washington University Biostatistics Center
Colonoscopy
2L Oral Bi-PegLyte Versus 2L Oral MoviPrep Regimen for Outpatient Colonic Preparation
This study is a randomized, controlled, single centre, endoscopist-blinded non-inferiority trial. The purpose of our study is to determine if using a 2-litre mixture in combination with vitamin C is better than using 2 litres of…
- Trial name
- NCT01865916
- Testing
- Polyethylene Glycol (PEG) and 15 mg Bisacodyl, Polyethylene Glycol (PEG) + ascorbic acid
- Where
- Canada
- Volunteers
- 309 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Renal Insufficiency, Chronic
Targeting Central Pulsatile Hemodynamics in Chronic Kidney Disease
Heart failure (HF) is an epidemic and is a major burden on the US healthcare system. The most common cardiovascular endpoint is HF. Thus, novel interventions to prevent HF in chronic kidney disease (CKD) are highly desirable.
- Trial name
- NCT02791906
- Testing
- ISMN, Vitamin C
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- University of Pennsylvania
Rhinitis, Allergic, Allergy
Effect of Vitamin C on Allergy Skin Test
This study will assess the effect of taking vitamin C on allergy skin test.
- Trial name
- NCT05810233
- Testing
- Ascorbic acid 1000mg
- Where
- Malaysia
- Volunteers
- 90 people
- Sponsor
- National University of Malaysia
Arteriovenous Fistula Occlusion
Delivery of Inhibitors of Lysyl Oxidase (LysoLox) on Serial Angioplasty and Time to Restenosis
The narrowing of Dialysis Fistulae or Grafts is a near universal problem in patients with end-stage renal disease (ESRD) and requires patients to undergo repeated angioplasty or mechanical opening of the fistula.
- Trial name
- NCT03106948
- Testing
- Ascorbic Acid, Cuprimine Oral Product
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Southeast Renal Research Institute
Variant Angina
ANti-Oxidant in Variant Angina (ANOVA) Trial
Purpose Objectives 1. To evaluate the anti-oxidant effect of long-term Vitamin C+E therapy on coronary vasospasm improvement. 2. To evaluate the anti-oxidant effect of long-term statin therapy on coronary vasospasm improvement.
- Trial name
- NCT03228238
- Testing
- Vitamin C and Vitamin E, Statin, Standard medication for variant angina
- Where
- South Korea
- Volunteers
- 320 people
- Sponsor
- Seoul National University Hospital
Non-Cystic Acne
A Study to Evaluate the Efficacy and Safety of Clear Skin Formula on Mitigating Mild to Moderate Non-cystic Acne
The goal of this clinical trial is to compare Clear Skin Fomula Supplement to Placebo in healthy men and women ages 18-40 to mitigate mild to moderate non-cystic acne over the course of 12 weeks.
- Trial name
- NCT05879406
- Testing
- VitaMedica® Clear Skin Formula capsules
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Ablon Skin Institute Research Center
Lymphoma
Panobinostat Combined With High-Dose Gemcitabine/Busulfan/Melphalan With Autologous Stem Cell Transplant for Patients With Refractory/Relapsed Lymphoma
The goal of this clinical research study is to learn about the safety and effectiveness of the combination of panobinostat, gemcitabine, busulfan, and melphalan, either with or without rituximab, in patients who have…
- Trial name
- NCT02961816
- Testing
- Palifermin, Panobinostat, Gemcitabine
- Sponsor
- M.D. Anderson Cancer Center
Tuberculosis
Effect of Multivitamin Supplements on Clinical and Immunological Response in Childhood Tuberculosis
The purpose of this study is to see whether children who take vitamins along with the standard medicine for tuberculosis (TB) recover better and quicker than children who take only the standard medicine for TB.
- Trial name
- NCT00145184
- Testing
- Multivitamin supplement containing vitamins B, C, and E
- Where
- Tanzania
- Volunteers
- 40 people
- Sponsor
- Harvard School of Public Health (HSPH)
Varicocele
Evaluation of Fertitonex Effects on Semen Parameters in Clinical Varicocele Patient.
The aim of the study is to evaluate the Fertitonex effects on semen parameters in clinical varicocele patients.
- Trial name
- NCT06718426
- Testing
- Fertitonex capsule
- Where
- Egypt
- Volunteers
- 110 people
- Sponsor
- Menoufia University
Multiple Micronutrient Deficiencies During Pregnancy
Prevention of Intrauterine Growth Retardation in Hounde District, Burkina Faso
Intrauterine Growth Retardation is the most important determinant of mortality and morbidity in the neonatal period. It is also a very important factor in predicting nutritional status, health and development in childhood.
- Trial name
- NCT00642408
- Testing
- Multiple micronutrient supplements (MMN), IFA
- Where
- Burkina Faso
- Volunteers
- 1,370 people
- Sponsor
- Institute of Tropical Medicine, Belgium
Diabetes, Gestational
Outpatient Cervical Ripening With Orally Administered Misoprostol in Diabetics
A. Null Hypothesis: In term pregnancies complicated by diabetes, there is no difference in the time interval from start of induction to delivery when outpatient cervical ripening and labor induction is initiated with orally…
- Trial name
- NCT00514618
- Testing
- Misoprostol
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- MemorialCare Health System
Cystic Fibrosis (CF)
Antioxidant Supplements in Cystic Fibrosis Children
This randomized controlled clinical trial included 60 pediatric patients with cystic fibrosis (CF) assigned randomly into two arms; Arm 1(extra care arm):received a tailored dietary plan following Mediterranean diet to cover…
- Trial name
- NCT06875050
- Testing
- Mediterranean diet, Fat soluble vitamins supplementation, Antioxidant Supplement
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Ain Shams University
Falling Injury, Nutrition Disorder
Malnutrition's Role in Fall Risk
Falls and falls related injuries are considered one of the most adverse events that a patient can experience. Several assessment instruments to assess and mitigate risks for falls have been developed.
- Trial name
- NCT03011918
- Testing
- Data Collection prior to first fall for all fallers, Hgb value, Vitamin D
- Where
- United States
- Volunteers
- 485 people
- Sponsor
- Louis Stokes VA Medical Center
Tuberculosis
The Role of Vitamin D, A, and Beta Carotene in Tuberculosis Patients With Vitamin D Receptor Gene Polymorphism
Recent studies showed that vitamin D and A has an effect in improving sputum conversion in tuberculosis. This study aims to find out the effect of vitamin D 1000 IU and A 6000 IU supplementation on Tuberculosis patients with…
- Trial name
- NCT04593524
- Testing
- vitamin D 1000 IU and A 6000 IU supplementation and nutritional counseling, nutritional Counseling
- Where
- Indonesia
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Universitas Sumatera Utara
Ovarian Cancer, Cervical Cancer
Oral Iron vs. Placebo in Newly Diagnosed Gynecologic Oncology Patients Who Are Surgical Candidates.
The prevalence of anemia in gynecologic oncology new patients has been seen in previous studies to be as high as 35-59%. this population includes women with several types of gynecologic malignancies.
- Conditions
- Ovarian Cancer, Cervical Cancer, Uterine Cancer, Anemia
- Trial name
- NCT01953107
- Testing
- Oral Ferrous Fumarate
- Where
- Canada
- Volunteers
- 200 people
- Sponsor
- Sunnybrook Health Sciences Centre
Anemia, Iron Deficiency
Effect of Timing of Micronutrient Powder Consumption on Iron Absorption in Infants
Infants and young children in sub-Saharan Africa have high rates of iron deficiency anemia (IDA), which adversely affects their growth and cognitive development.
- Trial name
- NCT02989311
- Testing
- Fortified maize porridge (MNP and Iron), Fortified Maize porridge (MNP + Iron + GOS)
- Where
- Kenya
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
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