Testing Bronchodilators inhalation against a placebo for COPD
Official title: Bronchodilators and Lung Mechanics During Exercise in COPD
Bronchodilators and Dynamic Lung Mechanics During Exercise in COPD: Protocol for a Randomised, Placebo-controlled Crossover Trial
Interventions
Bronchodilators inhalation
Salbutamol sulphate (2.5 mg) + ipratropium bromide (0.5 mg)
Placebo
Nebulized saline
Canadian Sites (1)
Respiratory Investigation Unit, Kingston Health Sciences Center
Kingston, Ontario, Canada
Eligibility Criteria
See who this study is looking for14 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +Diagnosis of COPD
- +Male or female ≥40-years-of-age
- +Forced expiratory volume in 1 second (FEV1)/ forced vital capacity (FVC)\<lower limit of normal
- +Pre-Post Change of FVC ≥ 10% predicted after 400 mcg inhaled salbutamol
- +Functional residual capacity ≥120%predicted and/or the upper limit of normal
- +Modified Medical Research Council dyspnea scale ≥ 2
- +Clinically stable as defined by no exacerbations in the preceding 6 weeks
- +Ability to provide informed consentInformed consentThe process of being told what taking part involves, then choosing freely.Read more → and perform all study procedures
- +Current or former smokers with ≥20 pack-year history
Exclusion
- −Major cardiopulmonary diseases other than COPD (asthma, interstitial lung disease, pulmonary hypertension, and congestive heart failure)
- −Neuromuscular or musculoskeletal disease
- −Use of daytime oxygen or exercise induced O2 desaturation to \< 80% on room air;
- −Any other disorder that may contribute to exertional dyspnoea and/or exercise intolerance
- −Any contraindication to cardiopulmonary exercise testing
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is testing a treatment for a condition.
Phase 4Phase 4A study of a treatment that is already approved and in use.Read more → — a study of a treatment already approved for use, following it in everyday practice.
What is being given or done in this study: Bronchodilators inhalation, PlaceboPlaceboA dummy treatment with no active medicine, used for comparison.Read more →.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
- armsInterventionsModule.interventions[].name
How the study is run
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
Neither you nor the study team would know which group you are in until the study ends.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
One group receives a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → — a dummy treatment with no active medicine in it.
One group receives an existing treatment, so the two can be compared.
There are 2 groups in this study.
From the trial registry
Built from this field:
- armsInterventionsModule.armGroups[].type
Who the study is looking for
The study lists a minimum age of 40 years, with no upper limit given.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 25 people.
The study is currently expected to finish around January 2027.
The main measurement is taken over: At 2, 4, 6, 8, and 10 minutes from start of exercise.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Airway resistance — measured over At 2, 4, 6, 8, and 10 minutes from start of exercise.
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT06825013 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About Bronchodilators inhalationDrug
Salbutamol sulphate (2.5 mg) + ipratropium bromide (0.5 mg)
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About PlaceboDrug
Nebulized saline
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: a minimum age of 40 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
Yes. This study includes a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group — a dummy treatment with no active medicine in it.
One group receives an existing treatment so the two can be compared.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
Neither you nor the study team would know which group you are in until the study ends.
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists a minimum age of 40 years, with no upper limit given.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: At 2, 4, 6, 8, and 10 minutes from start of exercise.
The study as a whole is currently expected to finish around 2027-01.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 25 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists one location: Kingston, Ontario, Canada.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
Bronchodilators are medications that open the bronchi to help patients with COPD to breathe better. It is still not known exactly how this effect improves shortness of breath in people with COPD. The goal of this clinical trial is to determine whether bronchodilators lower resistance in the smallest airways in the lungs, and whether this will improve the feeling of breathlessness in these patients. The main questions the investigators attempt to answer are: * In patients with COPD, does treatment with a short-acting bronchodilator improve small airway resistance during exercise? * In patients with COPD, does acute treatment with short-acting bronchodilator improve breathlessness and exercise endurance? The investigators will compare short-acting bronchodilators to placebo (a substance that contains no drug) to see if the bronchodilator medications improve small airway resistance and breathlessness during exercise. Participants will: * Visit the research laboratory 3 visits to complete tests of lung function and exercise * Complete 2 identical visits (Visit 2 and 3), one in which the participant receives bronchodilator and one in which the participant receives placebo.
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See if this trial could fit youThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.