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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.

RESULTS

Found (8) clinical trials

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 ...

Phase

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 ...

Phase

Vitamin D Insulin Resistance and Cardiovascular Disease

This is a double blinded, placebo controlled trial. Patients who meet the inclusion criteria will be randomized to placebo or 25(OH)D3, 4,000 IU/d orally for 16 weeks. Enrolled patients will be tested for 24h-blood pressure, brachial arterial blood flow, vascular inflammatory markers and macrophage inflammatory response to modified-lipoproteins at baseline, ...

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

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

Resistance to Vitamin D or Parathyroid Hormone

Patients with confirmed or suspected states with resistance to vitamin D or parathyroid hormone (PTH) will be admitted for diagnosis and treatment and for inclusion in other protocols. These states include hypocalcemia, rickets, osteomalacia, pseudohypoparathyroidism. Resistance to a factor is manifested by deficient bioeffect despite high levels of the factor ...

Phase N/A

Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford

CoRDS collects contact, sociodemographic and health information about participants. This information is entered into CoRDS and linked to a unique coded identifier. Below are some examples of information requested on the Questionnaire that will be entered into CoRDS: - Contact information: Name, Mailing Address, Phone Number, Email Address - Sociodemographic ...

Phase N/A

Cholecalciferol in Treating Patients With Newly Diagnosed Non-Hodgkin Lymphoma or Chronic Lymphocytic Leukemia With Vitamin D Deficiency

PRIMARY OBJECTIVES: I. To evaluate the 3 year progression-free survival (PFS), defined as time from the first chemotherapy for the treatment of newly diagnosed non-Hodgkin lymphoma (NHL) or chronic lymphocytic leukemia (CLL) until relapse, progression, or death from any cause. SECONDARY OBJECTIVES: I. To evaluate changes in the levels of ...

Phase