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NCT01501383 · ClinicalTrials.gov registry record · Phase 2

A Study to Evaluate the Efficacy and Safety of VX-765 in Subjects With Treatment-Resistant Partial Epilepsy

A Phase 2 study, sponsored by Vertex Pharmaceuticals Incorporated.

Terminated
Registry status
Phase 2
Development phase
55
Enrollment target

NCT01501383: Clinical Trial Phase 2 study, sponsored by Vertex Pharmaceuticals Incorporated.

NCT01501383 is a Phase 2 study that was terminated before completion, run by Vertex Pharmaceuticals Incorporated. The registered enrollment target is 55 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (59% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01501383, a Phase 2 study, was terminated before completion, sponsored by Vertex Pharmaceuticals Incorporated.

TERMINATED
Registry status
Phase 2
Development phase
55 participants
Enrollment target

Study Summary

The purpose of this study is to evaluate the efficacy, safety and tolerability of VX-765 in subjects with treatment-resistant partial epilepsy.

Interventions

  • DRUG Placebo
  • DRUG VX-765 Part A
  • DRUG VX-765 Part B

Trial Details

FieldValue
Enrollment Target 55 participants
Start Date 2011-12
Phase Phase 2
Vertex Pharmaceuticals Incorporated

191 total trials

Why NCT01501383 stopped before completion

NCT01501383 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 55 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (59% lower).

The record links to 0 conditions, and to 3 interventions - of which Placebo is the first listed.

NCT01501383 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01501383 about?

NCT01501383 is a clinical study titled "A Study to Evaluate the Efficacy and Safety of VX-765 in Subjects With Treatment-Resistant Partial Epilepsy". The purpose of this study is to evaluate the efficacy, safety and tolerability of VX-765 in subjects with treatment-resistant partial epilepsy.

What is the current status of trial NCT01501383?

This trial is currently terminated. It is a Phase 2 study. The enrollment target is 55 participants. The study started on 2011-12.

What interventions are being tested in trial NCT01501383?

The interventions under investigation include: Placebo (DRUG), VX-765 Part A (DRUG), VX-765 Part B (DRUG).

Who is sponsoring clinical trial NCT01501383?

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 NCT01501383's enrollment target sits among peer trials

55 1153rd of 2000 higher than 841 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 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 NCT01501383, the US trial registry maintained by the National Library of Medicine. NCT01501383 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.