Clinical trials
Phase 3 Cystic Fibrosis trials in the United States
Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.
99 trials match Source: ClinicalTrials.gov registrations
Trials started per year
By phase, 2000 to 2026.
| Category | Trials |
|---|---|
| 2001 | 1 |
| 2003 | 1 |
| 2005 | 5 |
| 2006 | 4 |
| 2007 | 5 |
| 2008 | 6 |
| 2009 | 6 |
| 2010 | 7 |
| 2011 | 3 |
| 2012 | 3 |
| 2013 | 8 |
| 2014 | 4 |
| 2015 | 10 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 10 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 1 |
| 2025 | 2 |
Status
Trials by registry status. Select a bar to filter.
| Category | Trials |
|---|---|
| Completed | 85 |
| Terminated | 7 |
| Active, not recruiting | 3 |
| Withdrawn | 1 |
| Recruiting | 1 |
| Enrolling by invitation | 1 |
| Unknown status | 1 |
Top lead sponsors
A sponsor with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Vertex Pharmaceuticals Incorporated | 48 |
| Gilead Sciences | 9 |
| Anthera Pharmaceuticals | 5 |
| Forest Laboratories | 5 |
| PTC Therapeutics | 5 |
| Solvay Pharmaceuticals | 3 |
| Amgen | 2 |
| Emory University | 2 |
| National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | 2 |
| Syntara | 2 |
Top conditions
MeSH conditions the trials were registered with, not their broader categories. A condition with a page on Pharma Observatory links to it.
| Category | Trials |
|---|---|
| Cystic Fibrosis | 99 |
| Exocrine Pancreatic Insufficiency | 15 |
| Pseudomonas Infections | 7 |
| Diabetes Mellitus | 4 |
| Steatorrhea | 4 |
| Lung Diseases | 3 |
| Fibrosis | 2 |
| Genetic Diseases, Inborn | 2 |
| Infant, Newborn, Diseases | 2 |
| Inflammation | 2 |
Trials
Showing 1 to 25 of 99. Each trial links to its page on Pharma Observatory.
Recently changed trials
Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.
No changes to these trials in the last 7 days.
Go deeper on Pharma Observatory
Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.