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Vitamin D to Improve Endothelial Function in SLE

NCT01911169 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 9

Last updated 2017-10-27

Study results available
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Summary

Determine the effect of vitamin D repletion on flow mediated dilation (FMD, a measure of endothelial function) in vitamin D deficient systemic lupus erythematosus (SLE) patients. The investigators will enroll vitamin D deficient SLE patients and randomize them to receive either 400 IU or 5,000 IU of cholecalciferol (D3) daily and measure change in FMD as a measure of EC function at baseline and after 16 weeks of repletion.

Determine mechanisms by which vitamin D repletion may improve endothelial function in vitamin D deficient SLE patients and in vitro.

Determine effect of oral D3 repletion on the Type I interferon signature in WISH and ECs cultured with pre and post plasma from D3 treated lupus patients.

Determine effect of D3 repletion on the number of circulating apoptotic and non-apoptotic EC and EPC ex vivo.

Determine effect of exogenous 1,25(OH)D on IFN gene signature in WISH and ECs stimulated by pretreatment SLE plasma in vitro.

Determine the effects of exogenous 1,25(OH)D on the phenotype of ECs cultured with pretreatment lupus plasma.

This study is designed to efficiently test our hypothesis and begin to define interferon-dependent pathways through which vitamin D repletion can restore clinical and in vitro endothelial function.

Conditions

Interventions

DRUG

Cholecalciferol

5,000 International units versus 400 international units as an active comparator

Sponsors & Collaborators

  • Medical University of South Carolina

    lead OTHER

Principal Investigators

  • James Oates, MD · Medical University of South Carolina

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2011-06-30
Primary Completion
2014-01-31
Completion
2014-01-31

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01911169 on ClinicalTrials.gov