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A Randomized, Double-blind, Placebo-Controlled, Multicenter, Phase 3 Study to Evaluate the Safety, Tolerability, and Efficacy of XEN1101 as Adjunctive Therapy in Primary Generalized Tonic-Clonic Seizures (X-ACKT)

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-502286-16-00
Acronym
XPF-010-303
Enrollment
106
Registered
2023-06-16
Start date
2023-10-27
Completion date
Unknown
Last updated
2025-10-24

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

Conditions

Primary Generalized Tonic-Clonic Seizures

Brief summary

Proportion of subjects experiencing ≥50% reduction in monthly (28 days) PGTCS frequency from baseline through the DBP for XEN1101 versus placebo

Detailed description

MPC in monthly (28 days) PGTCS frequency from baseline through the DBP for XEN1101 versus placebo, Proportion of subjects experiencing PGTCS freedom from baseline through the DBP for XEN1101 versus placebo., Proportion of subjects experiencing “At least much improved” (including “Much” and “Very much improved”) in PGI-C at Week 12.

Interventions

DRUGXEN1101 placebo drug product consists of a size 3 white opaque HPMC capsule (Capsugel VCaps® Plus White OP) containing 10mg of Avicel® PH102 (microscrystaline cellulose)

Sponsors

Xenon Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Proportion of subjects experiencing ≥50% reduction in monthly (28 days) PGTCS frequency from baseline through the DBP for XEN1101 versus placebo

Secondary

MeasureTime frame
MPC in monthly (28 days) PGTCS frequency from baseline through the DBP for XEN1101 versus placebo, Proportion of subjects experiencing PGTCS freedom from baseline through the DBP for XEN1101 versus placebo., Proportion of subjects experiencing “At least much improved” (including “Much” and “Very much improved”) in PGI-C at Week 12.

Countries

Austria, Belgium, Bulgaria, Croatia, Czechia, France, Germany, Italy, Netherlands, Poland, Portugal, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026