Clinical trial Recruiting at 6 sites Observational Ages 16 and up

New ways to detect lung infections in people with cystic fibrosis

Official title: Study to Enable New Diagnostics for Pulmonary Microbes in People With CF (SEND-CF)

Run by Seattle Children's Hospital · NCT07312734 · Data updated 2026-11-12

This study is testing new methods to find harmful lung bacteria in people with CF who can still produce sputum, especially those on modern CF therapies.

Quick facts

Study typeObservational
Ages16 Years and up
SexAll
Enrollment300 (estimated)
SponsorSeattle Children's Hospital
Academic / other
Locations9 sites (La Jolla, California and 8 other locations)
StatusRecruiting
StartedMarch 30, 2026
Main results expectedAugust 1, 2027
Study endsAugust 1, 2027
Registry record updatedJuly 2, 2026
Trial IDNCT07312734 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Individuals aged 16 or older with a CF diagnosis who can produce sputum and have FEV1 at least 30% are eligible, excluding those with recent cancer treatment, organ transplant history, or pregnancy.

Probably not a fit

Patients whose infections are not detectable by the new methods or who cannot provide sufficient samples may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The SEND-CF study aims to identify alternative sample types and detection methods for lung infections in CF patients, since sputum samples can be harder to obtain with some treatments. Researchers will collect sputum, saliva, blood components, urine, and breath samples from eligible participants to explore improved diagnostic approaches. The study is observational and gathers health information and biospecimens to see if non-sputum samples can reliably reveal infections. Participants will be adults and older adolescents who can produce sputum and meet the other criteria, with samples collected at multiple sites. This work builds on existing CF research and may lead to easier, earlier detection of lung pathogens.

Why it matters

Potential benefit: If successful, patients could benefit from simpler or more accurate infection detection without needing to cough up sputum.

How similar studies have gone: Previous CF infection studies rely on sputum, but this study explores alternative samples; the approach is exploratory and not yet proven.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* ≥ 16 years of age on day of study visit
* Documentation of CF Diagnosis
* Able to expectorate sputum
* Percent predicted FEV1 ≥ 30%

Exclusion Criteria:

* History of solid organ transplantation
* History of active malignancy (or treatment for malignancy) in 12 months prior to the study visit
* Pregnant

Where it's running

  • The Minnesota Cystic Fibrosis Center
    Minneapolis, Minnesota, United States
    Recruiting
  • Washington University School of Medicine
    St Louis, Missouri, United States
    Recruiting
  • University of Pennsylvania
    Philadelphia, Pennsylvania, United States
    Recruiting
  • University of Pittsburgh Medical Center
    Pittsburgh, Pennsylvania, United States
    Recruiting
  • University of Texas Southwestern
    Dallas, Texas, United States
    Recruiting
  • Froedtert & Medical College of Wisconsin
    Milwaukee, Wisconsin, United States
    Recruiting
Show 3 more locations
  • University of California San Diego
    La Jolla, California, United States
    Not yet recruiting
  • University of Nebraska Medical Center
    Omaha, Nebraska, United States
    Not yet recruiting
  • Nationwide Children's Hospital
    Columbus, Ohio, United States
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.