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A Study to Evaluate the Effect of VX-548 on the QT/QTc Interval in Healthy Participants

A Phase 1, Randomized, Double-blind, Placebo- and Active-controlled, Thorough QT/QTc Study of VX-548 in Healthy Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05818852
Enrollment
72
Registered
2023-04-19
Start date
2023-04-12
Completion date
2023-06-28
Last updated
2024-03-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pain

Brief summary

The purpose of the study is to evaluate the effects of clinical and high clinical exposures of VX-548 and its metabolite on QTcF, and the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of VX-548 and its metabolite.

Detailed description

This clinical trial information was submitted voluntarily under the applicable law and, therefore, certain submission deadlines may not apply. (That is, clinical trial information for this applicable clinical trial was submitted under section 402(j)(4)(A) of the Public Health Service Act and 42 CFR 11.60 and is not subject to the deadlines established by sections 402(j)(2) and (3) of the Public Health Service Act or 42 CFR 11.24 and 11.44.).

Interventions

DRUGVX-548

Tablets for oral administration.

DRUGMoxifloxacin

Capsules for oral administration.

DRUGMoxifloxacin Placebo

Capsules for oral administration.

DRUGVX-548 Placebo

Tablets for oral administration.

Sponsors

Vertex Pharmaceuticals Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

Key Inclusion Criteria: * Body mass index (BMI) of 18.0 to 32.0 kilogram per meter square (Kg/m\^2) * A total body weight greater than (\>) 50 kilogram (kg) Key

Exclusion criteria

* History of febrile illness within 5 days before the first dose of study drug * Any condition possibly affecting drug absorption * Known hypersensitivity or prior adverse reaction to moxifloxacin or other quinolones Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frame
Change in QT interval corrected by Fridericia's formula (QTcF)From Baseline up to Day 12

Secondary

MeasureTime frame
Change in PR interval, segmentFrom Baseline up to Day 12
Change in QRS durationFrom Baseline up to Day 12
Placebo-corrected Change in QTcFFrom Baseline up to Day 12
Placebo-corrected Change in HRFrom Baseline up to Day 12
Placebo-corrected Change in PR intervalFrom Baseline up to Day 12
Placebo-corrected Change in QRS durationFrom Baseline up to Day 12
Number of Outliers for QTcFFrom Baseline up to Day 12
Change in Heart Rate (HR)From Baseline up to Day 12
Number of Outliers for PR intervalFrom Baseline up to Day 12
Number of Outliers for QRS durationFrom Baseline up to Day 12
Frequency of Treatment-emergent Changes of T-wave Morphology and U-wave PresenceFrom Baseline up to Day 12
Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)From Day 1 up to Day 26
Maximum Observed Plasma Concentration (Cmax) of VX-548 and its MetaboliteDays 6 and 10: Pre-dose up to 24 hours
Area Under the Concentration versus Time Curve from the time of dosing to 24 hours (AUC0-24h) of VX-548 and its MetaboliteDays 6 and 10: Pre-dose up to 24 hours
Number of Outliers for HRFrom Baseline up to Day 12

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026