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Chronic Obstructive Pulmonary Disease (COPD)Phase 4NCT00202176

Effects of Bronchodilators in Mild Chronic Obstructive Pulmonary Disease (COPD)

A Phase 4 study testing Ipratropium Bromide in people with Chronic Obstructive Pulmonary Disease (COPD), run by Queen's University at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

In people with mild COPD, the ability to exhale air from the lungs is partly limited because of narrowing and collapse of the airways. This results in the trapping of air within the lungs and over-distention of the lungs and chest (lung hyperinflation). Read more about this study

Who is it for?
Ages 40 to 80 yearsHealthy volunteers can take part
What is being tested?
Ipratropium Bromide
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
32 participants
Where
1 siteCanada
Study dates
Jul 2005to Dec 2008
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • diagnosis of mild COPD OR healthy control subjects
  • 40-80 years old
  • able to perform all study procedures
  • Smoking history > 10 pack years (for mild COPD) or smoking history < 10 pack years (for healthy control subjects)

Who cannot join

  • allergy to atrovent
  • history of asthma, atopy or nasal polyps
  • Oxygen desaturation < 80 % during exercise
  • recent history of CAD (under a year) or any significant diseases that could contribute to dyspnea or exercise limitation

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Respiratory Investigation Unit

    Kingston, Ontario, K7L 2V7

Other trials in Canada

About this study

Official title: The Effects of Bronchodilators on Exertional Dyspnea and Exercise Performance in Mild Chronic Obstructive Pulmonary Disease (COPD) Patients and Healthy Elderly Subjects.

In people with mild COPD, the ability to exhale air from the lungs is partly limited because of narrowing and collapse of the airways. This results in the trapping of air within the lungs and over-distention of the lungs and chest (lung hyperinflation).

Breathing at high lung volumes (hyperinflation) is an important cause of breathing discomfort (dyspnea) in people with COPD. Bronchodilators help to relax muscles in the airways or breathing tubes. Bronchodilators are often prescribed if a cough occurs with airway narrowing as this medication can reduce coughing, wheezing and shortness of breath. Bronchodilators can be taken orally, through injection or through inhalation and begin to act almost immediately but with the effect only lasting 4-6 hours. The main purpose of this study is to examine the effects of inhaled bronchodilators on breathing discomfort and exercise endurance in patients with mild COPD.

Read the detailed description

In people with mild COPD, the ability to exhale air from the lungs is partly limited because of narrowing and collapse of the airways. This results in the trapping of air within the lungs and over-distention of the lungs and chest - this is known as lung hyperinflation. We believe that breathing at high lung volumes (hyperinflation) is an important cause of breathing discomfort (dyspnea) in people with COPD. Bronchodilators help to relax muscles in the airways or breathing tubes. Bronchodilators are often prescribed if a cough occurs with airway narrowing; this medication can reduce coughing, wheezing and shortness of breath. Bronchodilators can be taken orally, through injection or through inhalation and begin to act almost immediately but with the effect only lasting 4-6 hours. The main purpose of this study is to examine the effects of inhaled bronchodilators on breathing discomfort and exercise endurance in patients with mild COPD.

Each subject will attend 4 visits to the laboratory. Visit 1 (screening visit) will involve a record of medical history, medications used, anthropometrics measurements, questionnaires, breathing tests, an incremental cycle exercise test and a constant-workload cycle exercise test. Visit 2 will involve breathing tests and a constant-workload cycle exercise test. Visits 3 and 4 will involve breathing tests and a constant-workload cycle exercise test after subjects have been randomized to either placebo or Atrovent. These visits will be done on separate days and subjects will receive the two above treatments in random order.

Being tested
Ipratropium Bromide
Keywords
Chronic, Obstructive, Pulmonary, Disease, COPD, Atrovent, Ipratropium, Bromide, Exercise, Dyspnea
Medical subject headings
Pulmonary Disease, Chronic Obstructive, Bronchiolitis Obliterans Syndrome, Disease, Motor Activity, Dyspnea

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ipratropium BromideDrug

    Also called Atrovent

    Nebulized Ipratropium Bromide (4 mL) or saline solution (0.9% NaCl) (4mL) will be administered to subjects once only.

Study groups in NCT00202176
Study groupRoleWhat they receive
1ExperimentalIpratropium Bromide
Receives: Drug: Ipratropium Bromide
2Placebo comparatorSaline Solution (0.9% NaCl)
Receives: Drug: Ipratropium Bromide

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. endurance time

    Measured: 2 hours post-study drug inhalation

  2. dyspnea

    Measured: 2 hours post-study drug inhalation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Sep 2005 (estimated)
  2. Study startJul 2005
  3. Primary completionDec 2008
  4. Study completionDec 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00202176
Sponsor's protocol ID
DMED-833-04
Status last verified
Apr 2011
First submitted
9 Sep 2005
Last updated
19 Apr 2011
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Ipratropium Bromide in people with Chronic Obstructive Pulmonary Disease (COPD), run by Queen's University at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Apr 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

endurance time (time frame: 2 hours post-study drug inhalation). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Apr 2011.

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