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68 active trials for Vitamin D Deficiency

Innovative Food Structures to Enhance Nutrient Bioavailability

This randomized controlled trial (RCT) will compare the change in vitamin D status (25-hydroxyvitamin D nmol/L) after a 4 week intervention with 4 groups: Vitamin D enriched (20ug) olive oil emulsion drink Vitamin D enriched (20ug) coconut oil emulsion drink Placebo emulsion drink Vitamin D supplement (20ug) Participants will be randomized to 1 of 4 intervention group. Hypothesis 1: 25-hydroxyvitamin D concentrations are higher in the olive oil emulsion drink group compared to the placebo emulsion drink group post intervention. Hypothesis 2: 25-hydroxyvitamin D concentrations are higher in the olive oil emulsion drink group compared to the coconut oil emulsion drink group post intervention.

Start: November 2019

the Effect of Vitamin D in Crohn's Disease

To evaluate the efficacy and safety of 12-week goal-directed therapy in the treatment of refractory inflammatory patients, and to initially explore treatment options. Patients with potential risk factors for recurrence after surgery for Crohn's disease and a serum 25(OH)D concentration <75 nmol/L were prescribed oral liquid vitamin D supplementation over 12 weeks using a specific protocol with dose adjusted 4-weekly to aim for a target level of 100-125 nmol/L.

Start: December 2019

Vitamin D Deficiency and Effect of Its Supplementation on Interstitial Lung Diseases(ILD).

This study evaluates serum level of Vitamin D in Interstitial Lung Diseases in patients with Interstitial Lung Diseases other than connective tissue diseases associated-Interstitial Lung Diseases and effects of its supplementation. All patients will receive the standard regimen of treatment (corticosteroids and immunosuppressive drugs)and will be randomly assigned to either Group 1:who will receive Vitamin D supplementation (Interventional group)or Group 2:who will not receive Vitamin D supplementation(Control group).

Start: March 2019

Vitamin D and Polycystic Ovarian Syndrome

Primary Objectives: To evaluate the efficacy of metformin and Vitamin D supplementation on serum insulin and serum androgen levels (Total testosterone, Steroid Hormone Binding Globulin, Free Androgen Index) levels compared metformin alone in infertile Poly cystic ovarian females of reproductive age group. Secondary Objectives: To measure change in endometrial thickness/number of follicles and follicular size by day 12 trans-vaginal ultrasound in the intervention group i.e. combination of metformin and vitamin D supplementation

Start: January 2020

Association Between Vitamin D and the Development of Uterine Fibroids

the aim of this randomised clinical trial study is to evaluate whether supplementation with vitamin D could inhibit the growth of uterine fibroids in reproductive stage women.

Start: September 2018

Association Between Vitamin D and the Risk of Uterine Fibroids

The aim of this randomised clinical trial study is to evaluate whether supplementation with vitamin D could reduce the risk of uterine fibroids in reproductive stage women.

Start: September 2018

Effects of Supplementation of Vitamin D in Patients With Crohn's Disease

Thus, the aim of the current study is to assess the influence of vitamin D deficiency and, consequently, of serum calcium deficiency in the body composition, muscular activity, bone mineral density, fatigue, and exercise tolerance of CD patients. Secondly, it also aims to determine the impact of vitamin D supplementation on this population.

Start: December 2016

Vitamin D Supplementation and Tibia Fracture. Does it Improve Healing Rate?

This study evaluates the effect of Vitamin D3 supplementation in healing rate of tibia fractures in adult patients with low vitamin D. Half of participants will receive Vitamin D3 supplementation while the other will receive placebo.

Start: November 2017