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Terminated Phase 3 Interventional Results available

XEN496 (Ezogabine) in Children With KCNQ2 Developmental and Epileptic Encephalopathy

ClinicalTrials.gov ID: NCT04639310

Public ClinicalTrials.gov record NCT04639310. 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 Oct 22, 2026, 11:43 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 3 Study of Adjunctive XEN496 in Pediatric Subjects With KCNQ2 Developmental and Epileptic Encephalopathy

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

To investigate the potential antiseizure effects of adjunctive XEN496 (ezogabine) compared with placebo in children with KCNQ2 Developmental and Epileptic Encephalopathy (KCNQ2-DEE).

Study identification

NCT ID
NCT04639310
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
Xenon Pharmaceuticals Inc.
Industry
Enrollment
8 participants

Conditions and interventions

Eligibility (public fields only)

Age range
1 Month to 6 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
Mar 29, 2021 (Actual)
Primary completion
May 16, 2023 (Actual)
Completion
May 16, 2023 (Actual)
Last update posted
Aug 23, 2024

2021 – 2023

United States locations

U.S. sites
11
U.S. states
10
U.S. cities
11
Facility City State ZIP Site status
Children's Hospital of Orange County Orange California 92868 —
UCSF Medical Center San Francisco California 94158 —
Children's Hospital of Colorado Aurora Colorado 80045 —
Children's National Health System Washington D.C. District of Columbia 20010 —
Northwest Florida Clinical Research Group Gulf Breeze Florida 32561 —
Anne & Robert H. Lurie Children's Hospital Chicago Illinois 60611 —
Columbia University Irving Medical Center New York New York 10032 —
The Cleveland Clinic Foundation Cleveland Ohio 44195 —
Oregon Health and Science University Portland Oregon 97239 —
Children's Hospital of Philadelphia Philadelphia Pennsylvania 19104-4318 —
MultiCare Medical Center Tacoma Washington 98405 —

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 9 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04639310, 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 Aug 23, 2024 · Synced Oct 22, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04639310 live on ClinicalTrials.gov.

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