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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 (77) clinical trials

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

Improving Functionality in Older People

The decline in brain function with aging is costly. The maintenance of optimal brain health is a priority among the elderly. Complex modifiable factors impact brain function such as education level, ongoing use of cognitive skills such as mentoring and social interaction. In most instances, substantial time and effort will ...


Prevalence of Deficiency of Vitamin D in Critically Ill Patients

Studies have revealed that the serum level of 25-hydroxyvitamin D, as known as calcidiol, is low in critically ill patients. The prevalence ranges from 26 to 82%. 25-hydroxyvitamin D deficiency is associated with longer ICU stay, higher medical cost and higher death rate in septic patients. 25-hydroxyvitamin D is a ...

Phase N/A

Thiamine as a Renal Protective Agent in Septic Shock

This is a randomized, double-blind, placebo controlled study to investigate the effect of intravenous thiamine (vitamin B1) on renal injury in septic shock. Patients admitted with septic shock who have a lactate of at least 2.0mmol/L and do not have pre-existing renal failure requiring dialysis will be eligible for the ...


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.


Longitudinal Effect of Vitamin D3 Replacement on Cognitive Performance and MRI Markers in Multiple Sclerosis Patients

Background: Multiple Sclerosis is strongly associated with low serum 25 hydroxy-vitamin-D (25(OH)D) and impaired cognitive performance. In our previous research, participants with low serum 25OHD levels showed significant improvements in visuo-spatial memory delayed recall after 3 months of vitamin D3 supplementation. In addition, serum 25(OH)D was significantly associated with this ...

Phase N/A

Effect of High-Dose Vitamin D3 in Smokers and Non-Smokers With and Without HIV

Tobacco smoke suppresses the lung's ability to fight infection. Smoking is three times more prevalent in the HIV+ compared to HIV- patients. Viral load was found to be significantly increased in HIV+ smokers compared to HIV+ non-smokers, suggesting that smoking enhances HIV-1 viral replication in macrophages, which contributes to disease ...