Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

New breath test could replace painful lung scopes

NCT ID NCT04738422

Knowledge-focused Sponsor: Indiana University 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 This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 aims to see if a simple, non-invasive breathing test can accurately measure the acidity (pH) in the airways, which is often abnormal in lung diseases. Researchers will compare results from this breath test with standard methods in 150 healthy volunteers and people with lung conditions. If successful, this could provide a safer, cheaper way to monitor lung health.

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

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 150 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2020

Expected to finish

Jul 2028

An estimate. End dates often move.

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.

Ages

18 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * • Study sample will consist of individuals aged 18-60 with a diagnosis of acute or chronic respiratory disorders or normal subjects with no pulmonary disease. Healthy subjects may include: 1. Adult males or females age ≥ 18 and ≤ 60 years at time of enrollment 2. Non-smokers 3. Person with no history of asthma, chronic obstructive pulmonary disease (COPD), or other chronic lung disease 4. Person with no history of severe allergic/atopic disease requiring immunotherapy or immunomodulators Subjects with pulmonary disease may include: 1. Person with well-documented disease with objective diagnostics such a lung function or genetic testing. 2. Person with FEV1 \> 55% predicted on the day of study procedures. 3. Person who is clinically stable with no significant changes in health status within 4 weeks. Exclusion Criteria: * • Subjects that are mechanically ventilated. * Subjects that are unable or unwilling to cooperate with specimen collection. * Subjects with diagnosis of any medical condition that in the investigator's opinion would make them unsuitable for study participation. * Subjects who experienced a pulmonary exacerbation within the 4 weeks prior to visit. * Subjects requiring continuous oxygen therapy.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Acute or chronic respiratory disorders are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

respiratory system disorder

As listed by the trial registrant

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

Airway disease

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. 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

  • Indiana University School of Medicine

    Indianapolis, Indiana, 46219, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.