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
Vitamin D and Polycystic Ovarian Syndrome (PCOS)
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 …
Acute Vitamin D Supplementation on Testosterone in Females
Participation will take place over two visits to the Clinical Exercise Research Center (CERC) at the University of Southern California Health Sciences Campus. On the first visit, height, weight, and body composition by bioelectrical impedance are recorded. Questionnaires and withdrawal of a sample of blood (1 tablespoon) are also completed. …
Triamcinolone With Vitamin D Synergistic Efficacy in Psoriasis
These studies are designed to assess the synergistic efficacy of topical 0.1% triamcinolone cream paired with 40,000 IU of oral vitamin D3 daily in treating mild to moderate psoriasis. The study is designed to have all subjects treated with triamcinolone cream (TAC) for 4 weeks, then will be randomized 1:1 …
Does Vitamin C Increase the Body Heat Generated By The Nervous System?
The goals of this clinical trial are to determine whether or not vitamin C is able to: (1) increase the body heat generated by the sympathetic nervous system; and, (2) increase circulating vitamin D concentration during sympathetic nervous system stimulation in adult humans aged 18-40 years who meet the criteria …
Oral Vitamin D Supplementation Prevent Peritoneal Dialysis-related Peritonitis
This is a multicenter randomized, placebo-controlled trial of Vitamin D supplementation in patients on peritoneal dialysis to determine whether oral administration of vitamin D3 after curing an episode of peritonitis could reduce the risk of subsequent peritoneal dialysis-related peritonitis.
Vitamin D for Preventing Recurrent Preeclampsia in Pregnant Women
The goal of this clinical trial is to find out whether giving vitamin D to pregnant women who had pre-eclampsia in a previous pregnancy helps prevent the condition from coming back. The main question it aims to answer is: Does vitamin D supplementation reduce the chance of pre-eclampsia recurring in …
Efficacy and Safety of Vitamin D Supplementation in Pediatric Patients with Obesity
Introduction: Vitamin D deficiency is commonly observed in patients with obesity, primarily due to sequestration by adipose tissue. Recent research highlights the importance of this deficiency, showing a correlation between low vitamin D levels and mechanisms contributing to insulin resistance. Objectives: This study aims to compare the effects of supplementing …
Prephase Treatment With Prednisone +/- Vitamin D Supplementation Followed by Immunochemotherapy
This is an open-label, multicenter, randomized phase III trial. The study plans to randomize patients with a 1 to 1 ratio to Arm A (Standard arm) or Arm B (Experimental arm). All patients of both arms will receive a prephase with oral prednisone before 6 cycles Q21 of immunochemotherapy with …
Vitamin D Supplementation on Reported Rates of Taxane-Induced Neuropathy
This is a two-arm randomized clinical trial in which 80 participants with Vitamin D deficiency and scheduled to begin taxane-based chemotherapy will be randomized to either: 1) prescribed vitamin D replacement or 2) standard of care.
Randomized Trial of Enteral Vitamin D Supplementation in Infants < 28 Weeks Gestational Age or <1000 Grams Birth Weight
The objective of the study is to compare supplementation with vitamin D at 800 IU/day to usual care for the first 28 days after birth with respect to 25 (OH) vitamin D levels and indicators of likely or plausible effects of vitamin D supplementation on the function or structure of …
