Clinical trials: Vitamin D
Upper Respiratory Tract Infections, Lower Respiratory Tract Infections
Maternal Vitamin D for Acute Respiratory Infections in Infancy
There is a growing body of data suggesting that vitamin D modulates the host's immune response to acute respiratory infection (ARI).
- Trial name
- MDARI (NCT02388516)
- Testing
- Vitamin D3
- Where
- Bangladesh
- Volunteers
- 1,214 people, healthy volunteers welcome
- Sponsor
- The Hospital for Sick Children
Vitamin D Deficiency, Tuberculosis
Role of Vitamin D in Innate Immunity to Tuberculosis
The investigators proposed a pilot study preparatory to developing a randomized trial of vitamin D for the prevention of TB infection. The specific aims are presented below: 1.
- Trial name
- NCT01244204
- Testing
- Vitamin D
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Harvard School of Public Health (HSPH)
Uterine Fibroids (Leiomyoma)
FATIMA Trial: EGCG and Vitamin D3 for Prevention of Fibroid Recurrence
The aim of this randomized controlled clinical trial is to evaluate the efficacy of green tea (EGCG) and vitamin D3 supplementation in preventing uterine fibroid recurrence following fibroid removal.
- Trial name
- FATIMA (NCT07647198)
- Testing
- Vitamin D and Green Tea
- Where
- United Arab Emirates
- Volunteers
- 240 people
- Sponsor
- Sheikh Shakhbout Medical City
COVID-19, Coronavirus Infection
A Study of Hydroxychloroquine, Vitamin C, Vitamin D, and Zinc for the Prevention of COVID-19 Infection
This is a Phase II interventional study testing whether treatment with hydroxychloroquine, Vitamin C, Vitamin D, and Zinc can prevent symptoms of COVID-19
- Conditions
- COVID-19, Coronavirus Infection, Sars-CoV2, Corona Virus Infection
- Trial name
- HELPCOVID-19 (NCT04335084)
- Testing
- Hydroxychloroquine, Vitamin C, Vitamin D
- Where
- United States
- Volunteers
- 254 people, healthy volunteers welcome
- Sponsor
- ProgenaBiome
Hypoparathyroidism
Palopegteriparatide in Chronic Hypoparathyroidism
This is a multicenter, prospective cohort study conducted across 9 tertiary and university hospitals in the rural area of Athens, which investigates the clinical and biochemical effects of palopegteriparatide (TransCon PTH) in…
- Trial name
- PaTHreal (NCT07299838)
- Where
- Greece
- Volunteers
- 90 people
- Sponsor
- National and Kapodistrian University of Athens
Allergic Rhinitis Due to Grass Pollen
Intralymphatic Immunotherapy Enhanced by Vitamin-D, a Randomized Placebo-controlled Trial and Comparison With SLIT
A national, multicenter, randmised double blind study with parallell arms. 360 patients with grass induced allergic rhinitis will be open randomised 1:2 to 3 years Grazax sublingual immunotherapy or 3 intralymphatic injections…
- Trial name
- ILIT vs SLIT (NCT06061848)
- Testing
- SLIT Grazax ALK Nordic 75 000 SQ-T, ILIT + Vitamin D
- Where
- 3 sites in Sweden
- Volunteers
- 360 people
- Sponsor
- Lars Olaf Cardell
Serum, Vitamin D
Relationship Between Serum Vitamin D and Atherosclerosis in Hemodialysis Patients
The study aimed to check if there is a link between good vitamin D levels in the blood and subclinical atherosclerosis in people on hemodialysis.
- Conditions
- Serum, Vitamin D, Atherosclerosis, Hemodialysis
- Trial name
- NCT07200804
- Testing
- Measurement of Serum Vitamin D Level, Measurement of Carotid Intima-Media Thickness
- Where
- Egypt
- Volunteers
- 90 people
- Sponsor
- Ain Shams University
Adiposity
Vitamin D and Omega-3 Adiposity Trial (VITAL Adiposity)
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is a randomized clinical trial in 20,000 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (1 gram of…
- Trial name
- VITAL (NCT01785004)
- Testing
- Vitamin D3 (cholecalciferol), 2000 IU per day, omega-3 fatty acids (fish oil)
- Where
- United States
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Hyperlipidemia
A Pilot Study on the Effect of Vitamin D Treatment in Patients With Statin-Associated Myalgia
The purpose of this study is to measure the effect vitamin D has in alleviating muscle pain or aches that may be caused by taking certain medications for treating high cholesterol.
- Trial name
- NCT01274104
- Testing
- Vitamin D3
- Where
- United States
- Sponsor
- Avera McKennan Hospital & University Health Center
Ergocalciferol
Pilot Study: The Effect of Ergocalciferol on Plasma Mucin-1 Levels
To determine if a one-time oral administration of ergocalciferol results in a decline in plasma mucin-1 levels in healthy individuals and individuals with ADTKD-MUC1.
- Trial name
- NCT03747523
- Testing
- Ergocalciferol
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Cystic Fibrosis
Comparison of Absorption of Vitamin D in Cystic Fibrosis
The investigators predict that a powder pill form of vitamin D will be more effectively absorbed than an oil form of vitamin D in people diagnosed with Cystic Fibrosis.
- Trial name
- NCT01880346
- Testing
- Vitamin D Powder, Vitamin D Oil
- Where
- United States
- Volunteers
- 17 people
- Sponsor
- Emory University
Vitamin D Status
Getting Vitamin D Dosing Right
The investigators want to make sure that people get the right dose of Vitamin D treatment. They will therefore investigate how skin colour, body mass index, ethnicity, vitamin D binding protein and genetic variation affect the…
- Trial name
- NCT02474446
- Testing
- Vitamin D
- Where
- United Kingdom
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Sheffield Children's NHS Foundation Trust
Hypovitaminosis D, Type 2 Diabetes Mellitus
Vitamin D and Type 2 Diabetes - a Cross Sectional Study
The purpose of the study is to describe vitamin D status among patients with type 2 diabetes and to determine the association between serum 25-hydroxyvitamin D and glycemic control, markers of inflammation and blood pressure
- Trial name
- NCT00695474
- Volunteers
- 150 people
- Sponsor
- University of Aarhus
Vitamin D Deficiency, Spinal Cord Injury
Vitamin D Supplementation in Wheelchair Indoor Athletes
There is a high prevalence of vitamin D deficiency in Switzerland. In indoor-athletes as well as wheelchair users, vitamin D deficiency occurs even more often.
- Conditions
- Vitamin D Deficiency, Spinal Cord Injury, Drug Effects, Dietary Supplements
- Trial name
- VitD_SCI (NCT02621320)
- Testing
- Vitamin D
- Where
- Switzerland
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Swiss Paraplegic Research, Nottwil
Ulcerative Colitis, Vitamin D Deficiency
A Retrospective Analysis: the Influence of Caltrate Supplement on the Effect of Mesalazine in Ulcerative Colitis
Aims:Retrospectively observe the effects of Caltrate supplementation on the clinical effect of mesalazine in patients with ulcerative colitis.
- Conditions
- Ulcerative Colitis, Vitamin D Deficiency, Vitamin D Supplement
- Trial name
- NCT04276649
- Testing
- Caltrate
- Where
- China
- Volunteers
- 74 people
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Vitamin D Deficiency
Determination of Vitamin D Dose to Maintain Sufficiency Amongst Indian and Malay Women in the Tropics
Much research on vitamin D status has focused on seasonal variations in serum 25(OH)D levels in populations living at high altitudes and those of light-skinned Caucasian extraction, with little work done in multi ethnic…
- Trial name
- NCT02389179
- Testing
- Vitamin D3
- Where
- Malaysia
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Sharifah Faradila bt Wan Muhamad Hatta
Wheezing, Allergy
Wheezing in Black Preterm Infants: Impact of Vitamin D Supplementation Strategy
The goal of this study is to identify a vitamin D supplementation strategy that best promotes the lung, immune, and overall health of black infants born preterm (28-36 weeks gestational age).
- Trial name
- D-Wheeze (NCT01601847)
- Testing
- Cholecalciferol
- Where
- 5 sites in United States
- Volunteers
- 300 people
- Sponsor
- Case Western Reserve University
Atopic Dermatitis
Vitamin D Supplementation in Childhood Atopic Dermatitis
The goal of this clinical trial is to investigate the therapeutic role of vitamin D supplementation in a subset of patients with atopic dermatitis (AD): children with disease onset or worsening in the winter.
- Trial name
- NCT00879424
- Testing
- cholecalciferol (vitamin D)
- Where
- Mongolia
- Volunteers
- 107 people
- Sponsor
- Massachusetts General Hospital
Systemic Inflammatory Response Syndrome, Sepsis
Vitamin D and Critically Ill Patients
The higher rate of vitamin D deficiency is spotted among patients being hospitalized or in critical condition. Especially, vitamin D level below normal prolongs hospital stay and increases incidence of adverse prognosis and…
- Trial name
- NCT01636232
- Where
- China
- Volunteers
- 234 people, healthy volunteers welcome
- Sponsor
- Chinese PLA General Hospital
Healthy Participants
Influenza Virus Vaccine Plus Vitamin A and D Supplements for Prevention of Respiratory Virus Infections in Children
Children are particularly vulnerable to respiratory virus infections, especially influenza. Vitamin A \& D deficiencies are associated with vulnerability to infectious diseases of the respiratory tract.
- Trial name
- NCT02649192
- Testing
- Influenza virus vaccine, Vitamins A and D
- Where
- United States
- Volunteers
- 87 people, healthy volunteers welcome
- Sponsor
- St. Jude Children's Research Hospital