# Observational Trial of the Longitudinal Effects of CFTR Modulator Drugs

> **NCT04353752** · — · COMPLETED · sponsor: **National Jewish Health** · enrollment: 58 (actual)

## Conditions studied

- Cystic Fibrosis

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04353752
- **Lead sponsor:** National Jewish Health
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2019-09-16
- **Primary completion:** 2021-01-12
- **Final completion:** 2023-07-26
- **Target enrollment:** 58 (ACTUAL)
- **Last updated:** 2026-04-13

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04353752

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04353752, "Observational Trial of the Longitudinal Effects of CFTR Modulator Drugs". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04353752. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*