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Vitamin D Clinical Trials

A listing of Vitamin D medical research trials actively recruiting patient volunteers. Search for closest city to find more detailed information on a research study in your area.

Found 91 clinical trials
K Kara Ranguin, MSc

Vitamin D Analog in Vitamin D 24-hydroxylase Deficiency

Preclinical evaluation of a vitamin D analog for the treatment of vitamin D 24-hydroxylase using fibroblast from patients with CYP24A1 mutation.

18 years of age All Phase N/A

Vitamin D Homeostasis in Sarcoidosis

This study evaluates the relationship between vitamin-D status and severity of sarcoidosis, and the effects of vitamin-D repletion in vitamin-D insufficient patients with sarcoidosis. Half the patients with sarcoidosis who are vitamin-D insufficient will receive standard vitamin-D supplementation via standard regimen while the other half will receive a placebo. Sarcoidosis …

21 years of age All Phase 4

Vitamin D Replacement in Bronchiectasis

This study seeks to address the limitations in previous related studies on vitamin D replacement and bronchiectasis exacerbation occurrence through a self-controlled pilot study. The investigators aim to investigate whether vitamin D replacement in bronchiectasis patients with vitamin D deficiency can reduce hospitalized bronchiectasis exacerbation occurrence. Patients who participated in …

18 years of age All Phase 4
W Wajeeha Mahjabeen, MBBS

Vitamin D Supplementation in Acne

The goal of this clinical trial is to compare in acne vulgaris patients. The main question it aims to answer is: • To assess the therapeutic benefit of vitamin D supplement in acne vulgaris treatment, following a 2-month treatment regimen that includes vitamin D supplementation compared to conventional (systemic azithromycin …

13 - 40 years of age All Phase N/A
R Renee Weatherly

Vitamin D Sulfates in Breastmilk

Infants The purpose of this study is to measure breastmilk's vitamin D sulfate nutritional value in infant's saliva and digesta (gut). Breastfeeding Mothers The purpose of this study is to measure Vitamin D sulfates in freshly expressed breastmilk samples before and after 28 days of Vitamin D supplementation in lactating …

1 - 60 years of age All Phase N/A

Vitamin D for Critically Traumatic Patients

Trauma has been an important global public health issue. Yet it is the sixth cause of death in Taiwan, trauma brings great negative impact to national productivity since it presents specifically as the leading cause of death for the population aged below 40 years. According to the national databank from …

20 years of age All Phase N/A
A Athanasios Z Jamurtas, PhD

Exercise Training and Vitamin D Metabolism

The prevalence of Vitamin D deficiency is significantly higher in adults with overweight/obesity compared to those with normal body mass index (BMI). The "entrapment" of Vitamin D in adipose tissue due to impaired lipolytic stimulation and/or adipose tissue dysfunction has been proposed as the driving mechanism. Exercise training has been …

35 - 50 years of age All Phase N/A

Impact of Vitamin D Supplementation on the Rate of Pathologic Complete Response in Vitamin D Deficient Patients

A two arm pilot study investigating the rate of pathologic complete response in patients with vitamin D deficiency and triple negative breast cancer undergoing standard neoadjuvant chemotherapy + vitamin D supplementation, including an observational arm to describe response in patients who are not deficient. Investigators hypothesize that vitamin D supplementation …

18 years of age All Phase 2
S Sridhar L, MBBS MS

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. Vitamin D is involved in calcium metabolism and bone mineralization, regulation of cytokines, immunomodulation, cellular proliferation and differentiation. Its deficiency can lead to immune dysregulation, …

18 years of age All Phase N/A
M Michael Tim-Yun Ong

Vitamin D to Improve Quadricep Muscle Strength

Quadriceps muscle strength is one of the key determinants for patients to fulfill the Return-to-Play (RTP) criteria after an anterior cruciate ligament reconstruction (ACLR), in which the muscle size is directly linked to muscle strength. Quadriceps muscle atrophy is unavoidable after ACLR, but the rehabilitation program should increase quadriceps muscle …

18 - 40 years of age All Phase 2

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