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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 (81) clinical trials

Study of the Efficacy and Safety of Cholecalciferol Supplementation on the Activity of Rheumatoid Arthritis in Patients With Vitamin D Deficiency

This is an interventional, multicenter (13 rheumatology units) randomized, double-blinded study against placebo, lasting 24 weeks. The main objective is to demonstrate that treatment with cholecalciferol improves functional disability (HAQ) in patients with RA not in remission (DAS28 VS> 2.6 and the investigator does not think to change the treatment ...


The Effect of Vitamin D Administration to Premature Infants on Vitamin D Status and Respiratory Morbidity

The rational of this trial is that a daily supplementation of a double dose of Vitamin D (800 IU instead of 400 IU) to late premature infants during the first year of life will result in elevated Vitamin D serum levels and in an improvement in respiratory morbidity. This randomized ...

Phase N/A

Vitamin D Supplementation in Vitamin D Deficient Obese Children During Weight-loss Program

The study will be conducted as a continuation and development of "6-10-14 for Health" program. The first phase of the program, financed by the municipality of Gdansk, was conducted in 2011-2013. The program comprised of screening and survey conducted among all 6-, 10- and 14-year-old children attending primary and grammar ...

Phase N/A

Relationship Between Folic Acid and Warfarin Metabolism and Effect

Folic acid supplementation has been shown previously to be associated with enhanced formation of p-HPPH from phenytoin, a metabolic pathway which is predominantly mediated through the activity of CYP2C9. The metabolism of S warfarin, the more active enantiomer of warfarin, is also mediated predominantly through the activity of CYP2C9. The ...

Phase N/A

Interventional Trial of Vitamin D Deficiency in the Patients of General Departments

Today vitamin D is thought to be one of the most important vitamins in the human body. It's made in the skin during the sun expose, so it must be sufficient in so sunny countries as Israel. Although many old people in our country suffer from vitamin d deficiency which ...


The Prevalence of Vitamin D Deficiency and Effects of Vitamin D Supplementation in HIV-1 Infected Patients

Vitamin D deficiency is common in, especially black, HIV-seropositive patients. Vitamin D deficiency can be caused by lack of sunlight and/or insufficient vitamin D intake via diet. The HIV infection itself and antiretroviral therapy (ART) may also cause vitamin D deficiency. ART interferes with cytochrome p450 activity and as such ...


The Effect of Vitamin D Supplementation on Psoriasis Severity

Studies have indicated an association between lower levels of vitamin D and increased risk of psoriasis. This study investigate if vitamin D supplementation can reduce the severity of the skin disease as measured by Psoriasis Area Severity Index (PASI), as well as positively influence the cardiometabolic profile and skin microbiota ...

Phase N/A

Follicular Fluid Bioavailable Vitamin D and Embryo Quality Markers

To study the possible correlation between bioavailable vitamin D values in follicular fluid and embryo quality markers. To correlate bioavailable Vitamin D values in follicular fluid from large size follicles with embryo euploid status as our main objective. Secondly, looking at morphokinetics and mitochondrial content of these embryos. Taking into ...

Phase N/A

A Long-term Study to Describe the Use of PASCORBIN 7.5 g in Patients With Vitamin C Deficiency

The observational study began on 01 November 2012 and is scheduled for a period of 10 years continued (until 01 November 2022). The duration of the observational study for each patient is not fixed corresponding to the character of a non-interventional study. According to the underlying disease, characterized either acute ...

Phase N/A

Vitamin D Supplementation in Vitamin Deficient Women Undergoing IVF Cycles: Does it Affect the Fertility Outcome?

The study participants are vitamin D deficient females undergoing (intra-cytoplasmic sperm injection (ICSI) trial in the age of 20 to 35 years. Serum vitamin D will be assessed. Accordingly, if they are deficient in vitamin D, they will be eligible for the study.400 vitamin D deficient women will be randomly ...