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GOLD Stage I Chronic Obstructive Pulmonary Disease (COPD)

NCT01360788 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 53

Last updated 2011-05-26

No results posted yet for this study

Summary

Recently integrated in clinical practice, the Global Initiative for Chronic Obstructive Lung Disease (GOLD) classification states that a mild (stage I) chronic obstructive pulmonary disease (COPD) is present, in a smoker, when the postbronchodilator forced expired volume in 1 second (FEV1) to forced vital capacity (FVC) ratio is \< 0.7. A major change that was introduced by the GOLD classification system was that COPD could be diagnosed despite an FEV1 that is within normal predicted values (above 80% predicted). Because it suggests diagnosing and detecting COPD earlier than done until very recently in medical practice, the GOLD standards bring in a new reality to clinicians. In fact, this novel COPD classification comes with new research challenges because the functional impacts and systemic consequences related to COPD are mostly documented in patients with moderate to severe stages with little information specifically in GOLD stage I COPD. This information is important if the investigators are to convince physicians that GOLD stage I COPD needs to be diagnosed and eventually treated.

The investigators aimed to characterize GOLD stage I COPD patients according to activity-related dyspnea. More specifically, our objectives were to compare:

i) baseline pulmonary function ii) exercise capacity iii) quadriceps muscle function iv) levels of physical activity in daily life

between symptomatic (Sx) GOLD stage I COPD patients, asymptomatic (ASx) GOLD stage I COPD patients and healthy control subjects (CTRL). The investigators reasoned that exercise tolerance and physical activity levels would be decreased in Sx GOLD stage I COPD patients as it would be similar between ASx GOLD stage I COPD patients and CTRL.

Conditions

  • Mild Chronic Obstructive Pulmonary Disease
  • Respiratory Symptoms
  • Physical Activity

Interventions

DRUG

Combination ipratropium/salbutamol or placebo (nebulization)

The COPD patients were randomly assigned a combination of ipratropium/salbutamol or a placebo in a double-blind crossover design. The bronchodilation produced by the medication was given in order to evaluate if bronchodilation was effective in increasing exercise tolerance during an endurance shuttle walking test in patients with GOLD stage I COPD.

Sponsors & Collaborators

Principal Investigators

  • François Maltais, MD · Institut universitaire de cardiologie et de pneumologie de Québec, University Laval

Eligibility

Min Age
40 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2009-02-28
Completion
2011-02-28

Countries

  • Canada

Study Locations

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Entities

Companies

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 NCT01360788 on ClinicalTrials.gov