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Terminated Phase 2 Interventional

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

ClinicalTrials.gov ID: NCT01501383

Public ClinicalTrials.gov record NCT01501383. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jul 21, 2026, 4:40 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 2b, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Dose-Ranging Study to Evaluate the Efficacy and Safety of VX-765 in Subjects With Treatment-Resistant Partial Epilepsy With a 24-Week Open-Label Extension

Study identification

NCT ID
NCT01501383
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Enrollment
55 participants

Conditions and interventions

Conditions

Interventions

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

Drug

Eligibility (public fields only)

Age range
18 Years to 64 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 30, 2011
Primary completion
Jul 31, 2013
Completion
Not listed
Last update posted
Sep 29, 2020

Started 2011

United States locations

U.S. sites
22
U.S. states
18
U.S. cities
21
Facility City State ZIP Site status
Alabama Northport Alabama
Arizona Phoenix Arizona
Arizon Phoenix Arizona
Arkansas Little Rock Arkansas
California Loma Linda California
Florida Bradenton Florida
Florida Wellington Florida
Idaho Boise Idaho
Maryland Baltimore Maryland
Michigan Farmington Hills Michigan
Minnesota Saint Paul Minnesota
New York New York New York
New York The Bronx New York
North Carolina Asheville North Carolina
North Carolina Charlotte North Carolina
Ohio Columbus Ohio
Oklahoma Oklahoma City Oklahoma
Pennsylvania Philadelphia Pennsylvania
Texas Dallas Texas
Utah Orem Utah
Virginia Charlottesville Virginia
Washington Renton Washington

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 2 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01501383, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 29, 2020 · Synced Jul 21, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01501383 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →