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Vitamin Deficiency Clinical Trials

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


Found (82) clinical trials

The Effect of Supplementation of Vitamin D Deficiency in Older People With Acute Hip Fracture:

Hip fractures and related disabilities are important public health issues for elderly people around the world. Attending the progressive aging of the population, an increase in the number of hip fractures is expected. In fact, some studies estimate that, globally, the incidence will exceed 6 million in 2050. In Spain, ...


Safety Efficacy PK and PD of CTAP101 (Calcifediol) ER Capsules for SHPT in HD Patients VDI

A Multi-Center, Randomized, Two-Cohort Phase 2 Study to Evaluate the Safety, Efficacy, Pharmacokinetics and Pharmacodynamics of CTAP101 (calcifediol) Extended-Release Capsules to Treat Secondary Hyperparathyroidism in Subjects with Vitamin D Insufficiency and Chronic Kidney Disease Requiring Regular Hemodialysis.


The Influence of Food Matrix Delivery System on the Bioavailability of Vitamin D3

BACKGROUND The current project is a part of the vitamin D fortification with enhanced bioavailability study program (acronym: DFORT) which is an interdisciplinary project including research groups from Denmark, Spain, and the Netherlands supported by the Danish Innovation Foundation. The overall aim of DFORT is to develop more efficient strategies ...

Phase N/A

High-dose Vitamin D Supplements in Older Adults

General Design This Phase 2 randomized clinical trial of high-dose vs. standard dose Vitamin D (VitD) supplementation aims to prove feasibility of the intervention in a diverse community-recruited cohort and to provide an estimate of the effect sizes of treatment on cognitive change and brain MRI volumetric measures as the ...


PK/PD of Vitamin D3 in Adults With CF

Clinically stable CF patients with a history of pancreatic insufficiency (n=6) and matching non-CF subjects (n=6) will be recruited in this study. All subjects will be pre-screened for 25(OH)D status to include those with 25(OH)D levels below 30 ng/mL. The subjects will receive a single oral dose (300,000 - 600,000 ...

Phase N/A

The Effect of Vitamin C on Wound Healing In Mandibular Fracture Patients

In a prospective, randomized clinical trial of de novo mandibular fracture patients requiring intraoral surgical repair with plating, the investigators will: Compare the effects of supplemental vitamin C to placebo on soft tissue wound healing, measured by a) biomarkers of soft tissue repair (Procollagen I and III, Matrix Metallo-Proteinases 1,2,3 ...

Phase N/A

Vitamin D Supplementation in Children With Obesity-Related Asthma

This study has two parts. In part 1, study participants will be randomized to receive one of four doses of vitamin D supplementation in international units (IU) over at 16-week period: Single 50,000 IU loading dose + 6000 IU daily dose; 2) Single 50,000 IU loading dose + 10,000 IU ...


Correlation Between Maternal Vitamin D Level And Preterm Birth

Assessment of correlation between vitamin D level and prevalence of preterm births remains limited. The exact role of vitamin D in preterm birth has not yet been clearly defined ,where some studies showed vitamin D deficiency increased the risk of preterm birth while other studies found no correlation. In this ...

Phase N/A

Effects of Vitamin D3 Versus 25OHD3 on Mineral Metabolism and Immune Function

The purpose of this study is to compare the effects of two different forms of vitamin D supplements (vitamin D3 and 25-hyrdroxyvitamin D3 [25(OH)D3]) on vitamin D levels in the blood, and on markers of skeletal and immune health. This study is designed as a pilot study. A multi-ethnic cohort ...

Phase N/A

25-Hydroxyvitamin D Pharmacokinetic Study

Patients with a history of intestinal malabsorption (n=10) and healthy volunteers (n=10); (of both sexes and all ethnicities) will be recruited in this randomized double-blind crossover study. All subjects will be prescreened for 25(OH)D levels to include subjects with 25(OH)D<30 ng/ml. The subjects will be randomized to receive a single ...

Phase N/A