Respiratory
Cystic Fibrosis
Also known as CF, CFTR mutation, mucoviscidosis
Cystic fibrosis is caused by mutations in the CFTR gene encoding a chloride channel, leading to thick, sticky mucus in the lungs, digestive tract, and other organs. The F508del mutation accounts for ~70% of alleles.
148
studies recruiting now
as of 7 Sept 2026
1,767
studies registered in total
as of 7 Sept 2026
2
countries with a recruiting site
as of 7 Sept 2026
4 Sept 2026
most recent study posted
among recruiting studies
Recruiting trials
A Study to Test the Safety and Effects of Inhaled GDC-6988 in Participants With Muco-obstructive Disease
Natural History of Bronchiectasis
Natural History of Noncirrhotic Portal Hypertension
Dorzagliatin in Pancreatic Insufficient Cystic Fibrosis
Showing the 5 most recently updated recruiting studies, as recorded 7 Sept 2026. Live status on each study page.
See all 148 recruiting studiesWhere recruiting studies are running
Countries with at least one recruiting site among the studies above, 7 Sept 2026. Tap a country to search trials there.
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About Cystic Fibrosis
Cystic fibrosis is caused by mutations in the CFTR gene encoding a chloride channel, leading to thick, sticky mucus in the lungs, digestive tract, and other organs. The F508del mutation accounts for ~70% of alleles. CFTR modulators (ivacaftor, lumacaftor, tezacaftor, and the triple combination Trikafta/Kaftrio) are now approved for ~90% of people with CF, dramatically improving outcomes. Trials focus on remaining patients, lung transplant, and next-generation modulators.
Common clinical features
From Orphanet’s phenotype annotations (CC BY 4.0). Not a complete list.
Treatments being studied
18 approved treatments and 103 in clinical development, from Open Targets (CC BY 4.0). Not medical advice.
+ 95 more in development
Before you apply
Things trial teams commonly ask about for Cystic Fibrosis. Not eligibility rules; those are set by each study.
- CFTR mutation class (F508del homozygous, F508del heterozygous, or rare mutation) determines modulator eligibility and trial access
- ppFEV1 (percent predicted FEV1) is the primary lung function measure used in eligibility
- Pseudomonas aeruginosa infection status and exacerbation history are standard screening elements
Related conditions
Information, not medical advice. Trial listings are shown as recorded on ClinicalTrials.gov; whether any study is right for you is a decision for you and your clinicians, and eligibility is decided by each research team. Disease information from Orphanet (CC BY 4.0).