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Clinical Trial ● Currently Recruiting Phase I NCT05668741

A Phase 1/2 Study of VX-522 in Participants With Cystic Fibrosis (CF)

A Phase 1/2 Study of VX-522 in Participants With Cystic Fibrosis (CF) — Recruiting • Phase I • Cardiology / Cardiovascular • NCT05668741.

📅 25 Mar 2026 ⏱ 2 min read
Currently Recruiting
This trial is actively seeking participants in the UK. Discuss eligibility with your patient before referring.
Status
Currently Recruiting
Phase
Phase I
NCT ID
NCT05668741
Sponsor
Vertex Pharmaceuticals Incorporated
Start
2023-02-27
ClinicaliQ Trial Snapshot
  • A Phase 1/2 Study of VX-522 in Participants With Cystic Fibrosis (CF) — Recruiting • Phase I • Cardiology / Cardiovascular • NCT05668741.
  • The purpose of this study is to evaluate the safety, and tolerability and efficacy of VX-522 in participants 18 years of age and older with cystic fibrosis and a cystic fibrosis transmembrane conductance regulator (CFTR) genotype not responsive to CFTR modulator therapy.….
  • Sponsor: Vertex Pharmaceuticals Incorporated.

Verify eligibility, endpoints and current status on the original source registry before acting on this summary.

Use This Page For
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  • Checking recruitment status, phase and sponsor at a glance.
  • Connecting this trial to nearby guidelines, Drug Science and education.
What This Trial Is Studying

The purpose of this study is to evaluate the safety, and tolerability and efficacy of VX-522 in participants 18 years of age and older with cystic fibrosis and a cystic fibrosis transmembrane conductance regulator (CFTR) genotype not responsive to CFTR modulator therapy. Lead Sponsor: Vertex Pharmaceuticals Incorporated Start Date: 2023-02-27 Primary Completion: 2026-12-23

Eligibility Snapshot
  • Key Inclusion Criteria: * Body mass index is less than () 50 kg * Stable CF disease * CFTR gene mutations on both alleles that are not responsive to CFTR modulator therapy o Example mutations include but are not limited to, mutations that do not produce CFTR protein (i.e., Class I): nonsense mutations (e.g., G542X, W1282X) and canonical splice mutations (e.g., 621+1G->T) * Forced expiratory volume in 1 second (FEV1) value for SAD: greater than or equal to (≥)40 percent (%), MAD: ≥ 50% to less than or equal to (≤) 90% Key

Use the source registry for the full inclusion and exclusion criteria before discussing referral or enrolment.

Full Trial Details
View this trial on the source registry
Eligibility criteria, protocol, and results when available
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