The Effect of Breathing Helium-Hyperoxia During Pulmonary Rehabilitation in Patients With COPD

May 3, 2007 updated by: University of Alberta

A Randomized Controlled Trial to Study the Effect of Exercise Training Breathing Helium-Hyperoxia on The Exercise Tolerance and Quality of Life of Patients With Chronic Obstructive Pulmonary Disease

The purpose of this study is to examine whether breathing helium-hyperoxia during exercise in a pulmonary rehabilitation program can improve the exercise tolerance and health related quality of life of patients with Chronic Obstructive Pulmonary Disease (COPD).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

It is well accepted that the exercise training as part of a comprehensive pulmonary rehabilitation program can improve exercise tolerance, functional status and quality of life in patients with COPD. It is feasible that if patients were able to perform a greater volume or intensity of exercise during rehabilitation then the outcomes of the program would be improved. Recent research has demonstrated that breathing a helium-hyperoxic gas mixture can significantly reduce dynamic hyperinflation and dyspnea during exercise in patients with COPD and can increase exercise tolerance to a greater extent than breathing room air or a nitrogen-based hyperoxic gas. If patients with COPD were to breathe a helium-hyperoxic gas during exercise they should be able to tolerate a greater intensity of exercise while maintaining similar levels of exertional symptoms to those observed at lower exercise intensities breathing room air. As a result patients randomized to the helium-hyperoxia condition should obtain greater improvements in exercise tolerance than those receiving usual care (i.e. breathing room air)

Comparisons: Standard pulmonary rehabilitation of patients with COPD receiving either usual care (air breathing) or helium-hyperoxia (40% O2, 60% Helium).

Study Type

Interventional

Enrollment

38

Phase

  • Phase 2

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

  • Canada
    • Alberta
      • Edmonton, Alberta, Canada, T5K 0L4
        • Caritas Centre for Lung Health

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • FEV1/FVC<70% predicted;
  • FEV1<70% predicted;
  • RV>140% predicted.

Exclusion Criteria:

  • Cardiovascular contraindications to exercise;
  • Musculoskeletal abnormalities that limit exercise tolerance;
  • SpO2<85% during a constant work rate test;
  • On supplemental oxygen.
  • Exacerbation within the last month

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: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Constant-load exercise tolerance after 6 weeks of exercise rehabilitation

Secondary Outcome Measures

Outcome Measure
Maximum oxygen consumption after 6 weeks of exercise rehabilitation
Quality of Life measured after 6 weeks of exercise rehabilitation
Dyspnea at an isotime during constant-load exercise after 6 weeks of exercise rehabilitation

Collaborators and Investigators

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

Sponsor

University of Alberta

Investigators

  • Principal Investigator: Neil D Eves, PhD, University of Calgary, AB, Canada

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

March 1, 2005

Study Completion (Actual)

January 1, 2007

Study Registration Dates

First Submitted

November 29, 2006

First Submitted That Met QC Criteria

November 29, 2006

First Posted (Estimate)

December 4, 2006

Study Record Updates

Last Update Posted (Estimate)

May 4, 2007

Last Update Submitted That Met QC Criteria

May 3, 2007

Last Verified

March 1, 2007

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MSI 824

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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