The Assessment of the Effect of Vitamin D Supplementation on Inflammatory

Status Enrolling by invitation

Clinical Trial Summary

The aim of this study is to determine the effects of vitamin D or placebo for 3 months on the gene expression of glyoxalase enzyme, RAGE, and YKL40 in the peripheral blood mononuclear cell (PBMC) and serum levels of YKL40,AGEs, TNF-α, PAI-1, IL-6, and HbA1c of diabetes type 2 patients.

Clinical Trial Description

The aim of this study is to determine the effects of vitamin D or placebo for 3 months on the gene expression of plasma human cartilage glycoprotein 39(YKL40), receptor for advanced glycation end products (RAGE) and glyoxalase enzyme in the peripheral blood mononuclear cell (PBMC) and serum levels of YKL40 ,plasminogen activator inhibitor-1 (PAI-1), TNF-α, advanced glycation end products (AGEs ), IL-6, and HbA1c of diabetes type 2 patients. In this randomized, double-blind clinical trial, placebo-controlled study, 84 women and men with type 2 diabetes are enrolled from the Iranian Center of diabetes. At the start of study, all participants will sign informed consent and complete a general information form. 24-hour food record for 3 days will be taken from the patients at the beginning and the end of the study. Selected samples by using stratified randomization method based on sex, gender and body mass index (BMI) are classified into 2 groups: 1) receiving vitamin D supplement 2) receiving vitamin D placebo bo. The vitamin D supplement group will receive 4000 IU (100 microgram) daily for 3 months. The vitamin D placebo group will also receive placebo containing starch both similar in terms of color, shape and size. participants are advised to maintain their diet, level of physical activity and medication dose during the study. Blood samples will be collected after anthropometric parameter measuring then target biochemical parameters, gene expression and serum levels and physical activity will be measured before and after the trial. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03008057
Study type	Interventional
Source	Tehran University of Medical Sciences
Contact
Status	Enrolling by invitation
Phase	Phase 2/Phase 3
Start date	January 2017
Completion date	July 2021

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

The Assessment of the Effect of Vitamin D Supplementation on Inflammatory and Endothelial Factors in the Patients With Type 2 Diabetes .

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms