Other Clinical Trial - The Effect of Vitamin D Supplementation in Type 2

Status Completed

Clinical Trial Summary

In many observational studies, vitamin D deficiency is related to glucose intolerance and diabetes. But there little randomized, controlled interventional studies that evaluate the effect of vitamin D in type 2 diabetes.

Investigators investigate the effect of high dose (2000IU) 25-hydroxy vitamin D on type 2 diabetes in glycemic controls, non-alcholic fatty liver disease, and arterial stiffness, and bone turnover markers.

Clinical Trial Description

After informed consent, investigators randomized 180 type 2 diabetes into interventiona group (25-hydroxy vitamin d 2000 IU+ elemental calcium 200mg per day) or placebo group (elemental calcium 200mg per day). The participants should control diabetes by oral medications or lifestyle intervention at the intervention period. Investigators exclude the participants who took vitamin D or calcium or anti-osteoporotic drugs. Investigators also exclude renal insufficiency (Cr>1.5 in men or Cr>1.4 in women) or heavy alcoholics.

Investigators followed the participants for 24 weeks. After randomization, investigators checked HbA1c,glucose, calcium, 25-hydroxyvitamin d, AST, ALT,Creatinine, Parathyroid hormone, bone-specific alkaline phosphatase, serum CTX, brachial-ankle pulse wave velocity, central blood pressure, and aortic augmentation index, and precontrast liver computed tomography. Also investigators checked body weight, height, and peripheral blood pressure.

At 12 weeks, investigators checked HbA1c, 25-hydroxy vitamin D, AST, ALT, calcium, and creatinine.

At the end of the study(at 24 weeks), investigators checked HbA1c, glucose, AST, ALT, Creatinine, calcium, bone-specific alkaline phosphatase, serum CTX, brachial-ankle pulse wave velocity, central blood pressure, aortic augmentation index, and precontrast liver computed tomography.

After the study completed, investiators compared the data of interventional groups and placebo groups. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

DIABETES MELLITUS

Clinical Trial Details

NCT number	NCT01854463
Study type	Interventional
Source	Chuncheon Sacred Heart Hospital
Contact
Status	Completed
Phase	Phase 4
Start date	December 2011
Completion date	February 2013

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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 Effect of Vitamin D Supplementation in Type 2 Diabetes — VD2000

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms