Observational Trial of the Longitudinal Effects of CFTR Modulator Drugs

Completed

Conditions studied: Cystic Fibrosis

In brief

CF patients enrolled in this protocol will be recruited from patients followed by the Adult CF Program at National Jewish Health. Patients will be selected based on planned use of a CFTR modulator by their primary physician. No patient will be started on (or will switch) CFTR modulator agents for the purpose of the study. After enrollment, biological samples may be collected at two different time points prior to treatment initiation. One set of samples will be collected at baseline health prior to CFTR modulator initiation or change. A second set of samples will be obtained in subjects at the time of acute pulmonary exacerbation, if one occurs prior to CFTR modulator initiation or change. Post CFTR modulator initiation study assessments will be obtained at least one month after starting treatment and continue up to 2 times a year (including during pulmonary exacerbations), in order to document longitudinal effects of therapies and changes in inflammatory biology over time. At the time of each biological sampling, blood, sputum sample, urine, and a quality of life assessment will be acquired in all enrolled subjects. In addition to demographic data, clinical data, such as quantitative microbiology and simple spirometry will be recorded at the time of sample collection.

Key facts

Study ID

NCT04353752

Run by

National Jewish Health

People needed

58

Starts

2019-09-16

Expected to finish

2023-07-26

Last updated by the study team

2026-04-13

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Documented diagnosis of CF with an eligible mutation for modulator treatment.
• Age 18 years old or older.
• Patient is starting a CFTR modulator as part of their clinical care or switching CFTR modulator therapy agents, pending FDA approval.
• Ability to perform reproducible Pulmonary Function Tests.
• Willingness to comply with study procedure and willingness to provide written consent.

You may not qualify if…

• Presence of a condition or abnormality that, in the opinion of the Principal Investigator (PI), would compromise the safety of the patient or the quality of the data.

Where it is running

• National Jewish Health — Denver, Colorado, United States

Full record on ClinicalTrials.gov

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