Clinical trials: Vitamin D
Vitamin D Deficiency
The Effects of Vitamin D3 Alone and in a Combination With Omega-3 on the Association of C-peptide With Glycemic Control
The Effects of Vitamin D3 alone and in a combination with omega-3 on the association of C-peptide with glycemic control
- Trial name
- NCT04307784
- Testing
- VD3, Omega-3FA, VD3 and Omega-3FA
- Where
- Jordan
- Volunteers
- 115 people, healthy volunteers welcome
- Sponsor
- Applied Science Private University
Morbid Obesity
Bariatric Surgery Outcomes
The UCLA Metabolic and Bariatric Surgery Program (adult program) and the UCLA Fit for Healthy Weight Program (adolescent program) are committed to the care of morbidly obese patients. This study is observational.
- Trial name
- NCT01057784
- Testing
- Bariatric surgery.
- Where
- 2 sites in United States
- Sponsor
- University of California, Los Angeles
Periodontal Pocket
Evaluation of iPRF With Vit.D As an Adjunct to Non-Surgical Therapy in the Treatment of Stage III Periodontitis
a clinical trial will be made to investigate the effect of locally applied injectable prf (iPRF) plus vitamin D on the periodontal pockets in stage III periodontitis patients
- Trial name
- NCT06570200
- Testing
- PMPR+iPRF, PMPR+iPRF+Vit.D, PMPR only
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Cairo University
HMG COA Reductase Inhibitor Adverse Reaction
Vitamin D Replacement in Statin-Induced Myopathy
Pretreating people with replacement doses of vitamin D will allow them to tolerate Statin medications that have caused muscle pain for them in the past.
- Trial name
- NCT01400009
- Testing
- Vitamin D (Cholecalciferol )
- Where
- Canada
- Volunteers
- healthy volunteers welcome
- Sponsor
- McGill University Health Centre/Research Institute of the McGill University Health Centre
Post Liver Transplant Infection
Effect of Preoperative Vitamin D Supplementation in Liver Transplant Recipients With Vitamin D Deficiency on Post Transplant Outcomes
Liver transplantation (LT) remains the ultimate option to cure intractable end stage liver disease. Vitamin D deficiency is very common in these subsets of patients.
- Trial name
- NCT06736093
- Testing
- Vitamin D3
- Where
- India
- Volunteers
- 140 people
- Sponsor
- Institute of Liver and Biliary Sciences, India
Vitamin D Deficiency
Effects of Vitamin D Dose and Genotype of the Binding Protein in Infants and Children
The purpose of this study is to determine if the vitamin D binding protein genotype influences circulating vitamin D levels and if it may have functional consequences on vitamin D activity.
- Trial name
- VitaD (NCT01050387)
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 193 people, healthy volunteers welcome
- Sponsor
- Yale University
Preeclampsia
Vitamin D3 Supplementation Regimens and Preeclampsia Risk
This study is a randomized controlled trial with two parallel groups connected at Al-Thawra Modern General Hospital in Sana'a, Yemen.
- Trial name
- VitD-PE-RCT (NCT07648706)
- Testing
- Vitamin D3
- Where
- Yemen
- Volunteers
- 268 people
- Sponsor
- Sana'a University
Balance, Postural, Fall
Balance Disorders Related to Pregnancy
Primary aim of this study is to evaluate postural equilibrium and risk of falls during pregnancy by comparing static postural stability between pregnant and non-pregnant control women.
- Conditions
- Balance, Postural, Fall, Pregnancy Related
- Trial name
- PRST (NCT04482504)
- Testing
- 3 tests: Posturography, Questionnaire, vitamin D
- Where
- Slovakia
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- Comenius University
Nutritional Supplement Toxicity
Effect of 1 Year Vitamin D or D Plus B-vitamins on Bone Markers in Elderly People (KnoVIB)
The standard recommendation to prevent osteoporosis is to supplement low doses of vitamin D and calcium. Hyperhomocysteinemia has been related to increased risk of osteoporosis.
- Trial name
- KnoVIB (NCT02586181)
- Testing
- Vitamin D and Calcium, Vitamin D, Calcium, Vitamins B9, B6, B12
- Where
- Germany
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- Universität des Saarlandes
Multi-drug Resistant Tuberculosis
Case Control Study of Vitamin D Status and Adult Multidrug-resistant Pulmonary Tuberculosis in Maharashtra, India
India has the highest incidence of and mortality from multi-drug resistant tuberculosis (MDR-TB) globally. Vitamin D status may be an important determinant of MDR-TB infection and treatment outcomes; however, observational…
- Trial name
- NCT04342598
- Testing
- Serum Vitamin D
- Where
- India
- Volunteers
- 352 people, healthy volunteers welcome
- Sponsor
- Harvard School of Public Health (HSPH)
Seasonal Allergic Rhinitis
Vitamin D Plus Fluticasone Propionate
The objectives of this study would be to see if the addition of vitamin D to fluticasone propionate provides greater symptomatic relief in patients with seasonal allergic rhinitis compared to fluticasone propionate treatment…
- Trial name
- NCT01103934
- Testing
- Vitamin D3, Fluticasone Propionate
- Where
- United States
- Volunteers
- 35 people
- Sponsor
- University of Chicago
Colorectal Adenomatous Polyps
Calcium/Vitamin D, Biomarkers & Colon Polyp Prevention
The study team has developed a set of biomarkers of risk for colon cancer; this study tests 1) whether or not calcium and/or vitamin D supplementation can favorably affect these biomarkers in persons who are at higher than…
- Trial name
- PPS4B (NCT00399607)
- Testing
- Rectal biopsy during colonoscopy, Rectal biopsy at randomization, Rectal biopsy at 1 year
- Where
- 9 sites in United States
- Volunteers
- 264 people
- Sponsor
- Emory University
Osteoporosis, Postmenopausal
A Study to Evaluate Alendronate Sodium /Vitamin D3 Combination Tablets(FOSAMAX PLUS) Versus Calcitriol in the Treatment of Osteoporosis in Postmenopausal Women in China (MK-0217A-264)
This study will evaluate whether the once weekly administration of the combination tablet alendronate/vitamin D3 (FOSAMAX PLUS) will increase lumbar spine bone mineral density (BMD) more than the daily use of calcitriol.
- Trial name
- NCT01350934
- Testing
- alendronate 70-mg/vitamin D3 5600 IU combination tablet (Fosamax Plus), Calcitriol, Calcium 500 mg
- Volunteers
- 219 people
- Sponsor
- Organon and Co
Vitamin D Deficiency
The 'Hidden' Biological Impact of Vitamin D Deficiency: a Biomarker Study; Part 2
The investigators major aims are to: determine the vitamin D status of a group of young, apparently healthy adults in Hong Kong; examine inter-relationships between vitamin D status and biomarkers of DNA damage and repair…
- Trial name
- NCT02451787
- Testing
- Vitamin D
- Where
- Hong Kong
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Spinal Cord Injuries, Vitamin D Deficiency
Vitamin D Supplementation in Individuals With a Chronic Spinal Cord Injury
The main objective of this placebo-controlled randomized double-blinded study is to investigate the effect of vitamin D supplementation on vitamin D status (25(OH)D concentration in the blood) among individuals with a chronic…
- Trial name
- NCT04652544
- Testing
- Cholecalciferol (Vitamin D3)
- Where
- Switzerland
- Volunteers
- 50 people
- Sponsor
- Swiss Paraplegic Research, Nottwil
Menopause, Vitamin D Deficiency
Effect of Consumption of Yogurt Fortified in Calcium and Vit. D on Circulating Levels of 25OHD in Postmenopausal Women
The purpose of this study is to evaluate the effect of daily consumption of one or two CALIN+ pot(s) versus no intake of product, after 4, 8, 12 and 16 weeks, on the evolution of the serum concentration of 25-hydroxy vitamin D…
- Trial name
- NCT02534064
- Testing
- CALIN+
- Where
- France
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Yoplait France SAS
Maternal and Child Health
Impact of Vitamin D Supplementation on Fetomaternal Outcomes in LTBI Pregnant Females
The goal of this randomized controlled trial is to see the effect of vitamin D supplementation on fetomaternal outcomes in pregnant females with Latent Tuberculosis infection The main question[s] it aims to answer are: If Vitamin…
- Trial name
- RCT (NCT06354621)
- Testing
- Vitamin-D supplementation
- Where
- Pakistan
- Volunteers
- 99 people, healthy volunteers welcome
- Sponsor
- University of the Punjab
Vitamin D Deficiency
Vitamin D Levels in Residents in Medicine
the study aims to messure the vitamin D levels in medical staff in the hospital. The physicians in the course of their internship who work indoors and work many night shifts have limited sun exposure in all seasons.
- Trial name
- NCT01118806
- Where
- Israel
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Meir Medical Center
Pregnancy Complications, Maternal Death
Nutrition Optimalization Among Pregnant Women to Improve Maternal and Neonatal Outcome in DKI Jakarta
The goal of this MONAS Study is to learn about comprehensive monitoring and nutritional intervention among pregnant women in order to improve maternal and neonatal outcomes. The main questions it aims to answer are: 1.
- Conditions
- Pregnancy Complications, Maternal Death, Preeclampsia, Intrauterine Infection
- Trial name
- MONAS (NCT06268509)
- Testing
- Nutritional panel laboratory examination, Pregnancy supplements (other than provided by Ministry of Health), Fetomaternal ultrasound
- Where
- Indonesia
- Volunteers
- 245 people
- Sponsor
- Dr Cipto Mangunkusumo General Hospital
Bone Strength, Growth
Vitamin D Intervention in Infants - 6 Years Follow-up (VIDI2)
Exposure to vitamin D intervention in early life may have permanent effects on physiology and metabolism. Bone growth and mineralization, development of immunity, body composition and brain structure and functioning may be…
- Conditions
- Bone Strength, Growth, Body Composition, Infection
- Trial name
- VIDI2 (NCT04302987)
- Where
- Finland
- Volunteers
- 415 people, healthy volunteers welcome
- Sponsor
- University of Helsinki
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