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New database aims to unravel mysteries of chronic cough

NCT ID NCT04882943

Knowledge-focused Sponsor: University Hospital, Toulouse Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early This study
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aimed to create a French database of adults with chronic cough (lasting over 8 weeks) to learn more about the condition and how many people have a cough that doesn't get better with treatment. Researchers planned to collect information from 178 patients across multiple hospitals. The study was terminated early, but its goal was to gather knowledge, not to test a new treatment.

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.

Participants

178 people

The number who actually took part.

Started

Jun 2021

Finished

Apr 2026

Lead sponsor

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.

Who is studied

chronic cough patients

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

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 old * Consultation motivated by cough lasting for more than 8 weeks (duration corresponding to the definition of chronic cough) * Patient covered by a National Health Insurance Exclusion Criteria: * Active smoker or recent smoking cessation (within the past 6 months) * Intake of medications causing cough (the patient can be included 4 weeks after treatment discontinuation if cough persists) * Pregnant or breast-feeding women * Upper or lower respiratory tract infection within the past 4 weeks * Active lung disease (such as interstitial lung disease, lung cancer, abnormal dilation of the bronchi). * History of chronic bronchitis. * Current treatment with an angiotensin converting enzyme (ACE) inhibitor * History of cancer within the past 5 years or active cancer (excluding cutaneous squamous-cell carcinoma). * Person not fluent in French * Adult not able to express his/her consent verbally * Patient refusal

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Conditions

The condition(s) this trial relates to.

Chronic Cough

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Refractory chronic cough

Contacts and locations

Locations

  • AP-HP Bichat

    Paris, France

  • CH de Libourne

    Libourne, France

  • CHU de Besançon

    Besançon, France

  • CHU de Bordeaux

    Bordeaux, France

  • CHU de Tours

    Tours, France

  • UHToulouse

    Toulouse, 31059, France

More trials for these conditions

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