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NCT05818852 · ClinicalTrials.gov registry record · Phase 1

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

A Phase 1 study, sponsored by Vertex Pharmaceuticals Incorporated.

Completed
Registry status
Phase 1
Development phase
72
Enrollment target

NCT05818852: Completed Phase 1 study, sponsored by Vertex Pharmaceuticals Incorporated.

NCT05818852 is a Phase 1 study that has completed, run by Vertex Pharmaceuticals Incorporated. The registered enrollment target is 72 participants, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (20% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT05818852, a Phase 1 study, has completed, sponsored by Vertex Pharmaceuticals Incorporated.

COMPLETED
Registry status
Phase 1
Development phase
72 participants
Enrollment target

Study 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.

Interventions

  • DRUG Moxifloxacin
  • DRUG Moxifloxacin Placebo
  • DRUG VX-548
  • DRUG VX-548 Placebo

Trial Details

FieldValue
Enrollment Target 72 participants
Start Date 2023-04-12
Est. Completion 2023-06-28
Phase Phase 1
Vertex Pharmaceuticals Incorporated

191 total trials

What the finished NCT05818852 record still lists

NCT05818852 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 72 participants, a relatively small participant target, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (20% higher).

The record links to 0 conditions, and to 4 interventions - of which Moxifloxacin is the first listed.

NCT05818852 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT05818852 about?

NCT05818852 is a clinical study titled "A Study to Evaluate the Effect of VX-548 on the QT/QTc Interval in Healthy Participants". 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.

What is the current status of trial NCT05818852?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 72 participants. The study started on 2023-04-12. Estimated completion is 2023-06-28.

What interventions are being tested in trial NCT05818852?

The interventions under investigation include: Moxifloxacin (DRUG), Moxifloxacin Placebo (DRUG), VX-548 (DRUG), VX-548 Placebo (DRUG).

Who is sponsoring clinical trial NCT05818852?

This trial is sponsored by Vertex Pharmaceuticals Incorporated, which has 191 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT05818852's enrollment target sits among peer trials

72 736th of 2000 higher than 1,254 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT05818852, the US trial registry maintained by the National Library of Medicine. NCT05818852 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.