OnTrackCF app to support twice-daily CFTR modulator use in adults

OnTrackCF: Engagement, Feasibility, and Acceptability Study

Not applicable Interventional Boston Children's Hospital · NCT07031323

This project will try an app called OnTrackCF to see if adults with cystic fibrosis find it easy to use and whether it helps them stick to their twice-daily CFTR modulator medication.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years and up
SexAll
SponsorBoston Children's Hospital Academic / other
Locations3 sites (Birmingham, Alabama and 2 other locations)
Trial IDNCT07031323 on ClinicalTrials.gov

What this trial studies

OnTrackCF is a mobile health intervention tested in a multi-site, nonrandomized mixed-methods design among adults with cystic fibrosis who take twice-daily CFTR modulators. Participants use the OnTrackCF app on their iOS or Android smartphone or tablet while researchers collect app usage metrics, patient-reported surveys, and qualitative interviews to measure engagement, feasibility, and acceptability. The study is conducted at three U.S. sites (Boston, Baltimore, Birmingham) and focuses on real-world usability rather than clinical outcomes. Results will guide refinements to the app and the planning of larger efficacy trials.

Who should consider this trial

Good fit: Adults (18+) with a diagnosis of cystic fibrosis who are prescribed a twice-daily CFTR modulator, can read and speak English, and have regular access to an iOS or Android smartphone or tablet are ideal candidates.

Not a fit: People not taking a twice-daily CFTR modulator, those without regular smartphone or internet access, or non-English speakers are unlikely to benefit from this app.

Why it matters

Potential benefit: If successful, the app could help adults with CF maintain regular use of their CFTR modulators and support daily self-management.

How similar studies have performed: Previous mHealth and adherence-support studies in cystic fibrosis and other chronic conditions have shown modest improvements in medication-taking and high acceptability, but long-term clinical benefits remain uncertain.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Diagnosed with CF
2. 18+ years of age
3. Prescribed a CFTR modulator therapy to be taken twice a day
4. Can speak and read English
5. Have regular access to an iOS or Android tablet or smartphone with internet access.

Exclusion Criteria:

1\) Any situation, in the opinion of the Investigator, that would compromise the safety of the patient or the quality of the data

Where this trial is running

Birmingham, Alabama and 2 other locations

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 Cystic FibrosisCystic Fibrosis - CompleteadherencemHealthmobile healthdigital healthmedication adherenceCFTR Modulators
Last reviewed 2026-06-10 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.