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

Scientists hunt for protein clues to Pneumonia's hidden causes

NCT ID NCT00077909

Knowledge-focused Sponsor: National Institutes of Health Clinical Center (CC) Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 Sep 17, 2026 · Updated 16 times

Summary

This study looks at proteins in lung fluid from 750 people with pneumonia to find biomarkers that could reveal what's causing the lung inflammation. Participants undergo a standard bronchoscopy with lung washings, plus a blood draw. The goal is to better understand different types of pneumonia and improve diagnosis.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could help doctors identify the cause of pneumonia more precisely, leading to better-targeted treatments.
What could go wrong
This is an early observational study, not a treatment trial. It may not find clear biomarkers, and results may not change clinical practice for years.

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

About 750 people

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

Started

Feb 2004

Lead sponsor

A government research agency

The lead sponsor is the US National Institutes of Health.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Any patient at the NIH Clinical Center who has a clinically indicated need for diagnostic bronchoscopy.@@@

Ages

3 to 99 years

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: * All eligible patients undergoing diagnostic bronchoscopy who provide consent for proteomic analysis of BAL fluid supernatant and chart review of patient characteristics will be included in this study. * A parent/guardian may provide consent for a child age 17 or under and a Legally Authorized Representative (LAR) may provide consent for adults unable to consent. EXCLUSION CRITERIA: Patients undergoing bronchoscopy but not wanting to participate with either the chart review or the proteomic analysis of BAL fluid supernatant will be excluded.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Lung disease are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

Infections lung disorder pneumonia

As listed by the trial registrant

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

Lung disease Pneumonia Pulmonary 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

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    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

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

More trials for these conditions

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