Assessing respiratory infection risks in CF carriers

Estimating the Risk for and Severity of Respiratory Infections Attributable to CFTR Heterozygosity

Observational University of Iowa · NCT05474430

This study is testing if being a carrier of the CFTR gene mutation increases the risk of respiratory infections by comparing CF carriers with non-carriers.

Quick facts

Study typeObservational
Enrollment160 (estimated)
Ages18 Years to 100 Years
SexAll
SponsorUniversity of Iowa Academic / other
Locations1 site (Iowa City, Iowa)
Trial IDNCT05474430 on ClinicalTrials.gov

What this trial studies

This observational study aims to estimate the risk of respiratory infections associated with being a carrier of the CFTR gene mutation. Participants will undergo a nasal cell collection and blood tests to measure specific biomarkers related to respiratory health. Additionally, they will complete a baseline survey and discuss their current medications with the research team. The study includes both CF carriers and a control group of non-carriers to compare outcomes.

Who should consider this trial

Good fit: Ideal candidates include individuals who have previously tested positive as CF carriers and English-speaking adults.

Not a fit: Patients currently suffering from a respiratory infection or those unable to provide informed consent will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into the respiratory health risks faced by CF carriers, potentially leading to better management strategies.

How similar studies have performed: While this approach is observational and may not have direct precedents, studies on CFTR mutations and respiratory health have shown varying degrees of success in understanding related risks.

Eligibility criteria

Show full inclusion / exclusion criteria
CF Carrier Inclusion Criteria:

* Previously tested and shown to be a CF carrier
* English-speaking

Control Group Inclusion Criteria:

* Previously tested and shown to not be a CF carrier or CF patient
* English-speaking

Exclusion Criteria:

* Currently sick with a respiratory infection
* Prisoner Status
* Unable to provide own written, informed consent

Where this trial is running

Iowa City, Iowa

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Carrier StateRespiratory Infections
Last reviewed 2026-06-09 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.