Could viagra help COPD patients catch their breath?
NCT ID NCT05061368
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether sildenafil, a drug that widens blood vessels in the lungs, can improve exercise ability and reduce shortness of breath in people with mild COPD. Researchers think poor blood flow in the lungs may cause breathing trouble during activity. The trial will compare sildenafil to a placebo in 160 participants.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Sildenafil (oral drug, a pulmonary vasodilator)
What this could lead to
If it works, this could offer a new way to help people with mild COPD breathe easier during exercise and be more active.
What could go wrong
This is an early phase 2 trial with only 160 participants. Sildenafil may not improve symptoms or could cause side effects like headache or flushing. Results may not apply to all COPD patients.
Disclaimer
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Clinical Physiology Laboratory
RECRUITINGEdmonton, Alberta, T6G2R3, Canada
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact Phone: •••-•••-•••• Email: •••••@•••••