Effect of Supplemental Vitamin D on Skeletal Muscle Function in Chronic Obstructive Pulmonary Disease (COPD) Patients

June 7, 2013 updated by: Ken M. Kunisaki, Minneapolis Veterans Affairs Medical Center

Effect of Supplemental Vitamin D on Skeletal Muscle Function in COPD Patients.

The purpose of this study is to determine whether or not vitamin D supplementation can improve physical performance in persons with severe chronic obstructive pulmonary disease (COPD).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

39

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Minnesota
      • Minneapolis, Minnesota, United States, 55417
        • Minneapolis VA Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • COPD
  • Forced expiratory volume in one second (FEV1) < or = 50% of predicted
  • Smoking history of at least 10 pack-years
  • Able to ambulate independently or with the use of an ambulatory assist device (such as a cane or walker)

Exclusion Criteria:

  • Currently taking > 500 I.U. per day of vitamin D supplements
  • Primary diagnosis of asthma
  • Uncompensated heart failure
  • Heart attack in the previous 6 months
  • Kidney disease (glomerular filtration rate < 45 mL/min/1.73m2)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Vitamin D
Cholecalciferol (2000 I.U. daily)
Dietary supplement: Vitamin D (cholecalciferol)
2000 I.U. daily for 6 weeks
Placebo Comparator: Placebo
Placebo capsule (sugar pill daily)
Dietary supplement: Placebo
Placebo (sugar pill) daily for 6 weeks

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Short Physical Performance Battery (SPPB) Score
Time Frame: Baseline and 6 weeks
SPPB measures lower extremity strength using 3 simple office-based tests to assess standing balance, gait speed, and chair stands. The composite SPPB score ranges from 0 (worst performance) to 12 (best performance). The minimal clinically important difference is not fully agreed upon, although a difference of 1.0 point has been used in many studies.
Baseline and 6 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Change in Blood Level of Vitamin D (25-hydroxyvitamin D)
Time Frame: Baseline and 6 weeks
Baseline and 6 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Minneapolis Veterans Affairs Medical Center

Investigators

  • Principal Investigator: Ken M. Kunisaki, M.D., Minneapolis Veterans Affairs Medical Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2009

Primary Completion (Actual)

October 1, 2011

Study Completion (Actual)

October 1, 2011

Study Registration Dates

First Submitted

June 4, 2009

First Submitted That Met QC Criteria

June 4, 2009

First Posted (Estimate)

June 5, 2009

Study Record Updates

Last Update Posted (Estimate)

June 11, 2013

Last Update Submitted That Met QC Criteria

June 7, 2013

Last Verified

June 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 4129-A

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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