Morning or afternoon? study tests best time for COPD exercise
NCT ID NCT06366113
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at whether doing exercise training in the morning or afternoon makes a difference for people with COPD. Researchers will measure walking distance, endurance, and balance in 90 patients. The goal is to see if matching exercise time to the body's natural clock can improve the benefits of pulmonary rehabilitation.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- pulmonary rehabilitation (exercise re-training and patient education)
- What this could lead to
- If it works, this could show that timing exercise to match a patient's circadian rhythm boosts the benefits of pulmonary rehab for COPD.
- What could go wrong
- This is a small, early-stage study (90 people) looking at a timing difference, not a new drug or cure. The effect may be small or not meaningful for daily life.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 90 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2024
- Expected to finish
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Jul 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 85 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age ≥ 18 years * Patient with chronic obstructive pulmonary disease (COPD) * Registered for respiratory re-education and rehabilitation at the Clinique de la Mitterie * Number of rehabilitation sessions at least 18 over 4 weeks * Written informed consent signed by the patient * Membership of a social security Exclusion Criteria: * \- cardiovascular contraindications to exercise * unstable respiratory status (uncompensated respiratory acidosis) * conditions interfering with the pulmonary rehabilitation process (progressive neuromuscular disease, psychiatric illness)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Clinique la Mitterie
RECRUITINGLille, 59130, France
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