Search Medical Condition
Please enter condition
Please choose location from dropdown
Clear Trial Filters

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 (15) clinical trials

Urinary Vitamin C Loss in Diabetic Subjects

Several studies have reported that diabetic subjects have lower plasma vitamin C concentrations than non-diabetic subjects. Although urinary vitamin C loss in diabetic subjects was reported to be increased in two studies, these are difficult to interpret due to lack of controlled vitamin C intake, inadequate sampling, lack of control ...

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

Thiamine Responsive Disorders (TRD) Among Infants in Lao PDR

The study's primary objective is the development of a case definition for TRD among infants and young children with symptoms consistent with TDD, with the case definition being based on those clinical symptoms and other predictors that we find are better able to distinguish those who respond positively to thiamine ...

Phase N/A

Absorption of Transdermal Vitamins in Post Bariatric Surgery Patients

Patients will undergo either a sleeve gastrectomy or gastric bypass procedure. All patients enrolled will have previously chosen to use the Patch MD MultiVitamin Plus patch for vitamin and mineral supplementation versus oral or other dosage forms of vitamins after surgery. A conversation between the patient and provider will occur ...

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 information: Date ...

Phase N/A

Effect of Vitamin K in Critically Ill Patients

Vitamin K-deficiency is common in the peri-operative and intensive care setting. It is often seen in patients with prolonged prothrombin complex (PK-INR). A prolonged (PK-INR) is sometimes treated with intravenous vitamin K, even in non-warfarin treated or non-liver failure patients. Despite the development of this practice the knowledge about how ...

Phase N/A

Vitamin D and Immune Mechanisms of Hypertension in Type 2 Diabetics

More than half of patients with type 2 diabetes mellitus develop hypertension, which doubles their risk for cardiovascular disease. Inflammation plays a role in the development of these diseases, and monocytes, a type of white blood cell, may be critical. This study will isolate monocytes from blood samples of patients ...

Phase N/A

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

Multimodal Approach in IBD Patients

Patients with a confirmed diagnosis of IBD will be prospectively assessed on a yearly basis in order to assess relapse risk factors. Disease activity will be assessed using the Mayo score for UC patients and CDAI for Crohn's disease and endoscopic activity will be assessed using the Mayo endoscopic subscore ...

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