<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>15682</id><no>XPF-010-303</no><status>Open</status><title>A Randomized, Double-blind, Placebo-Controlled, Multicenter, Phase 3 Study&#xD;
to Evaluate the Safety, Tolerability, and Efficacy of XEN1101 as Adjunctive&#xD;
Therapy in Primary Generalized Tonic-Clonic Seizures</title><sponsor_type>Industrial</sponsor_type><age_group>Adult</age_group><treatment_type>Treatment</treatment_type><disease_site>Other</disease_site><PI>Haagensen, Jennifer</PI><institution>MedStar Health and GUMC; Medstar Southern Maryland Hospital Center</institution><management_group>MedStar Neuroscience &amp; Rehab Research Network</management_group></protocol><sipVersion>2026.1.0 Build 16</sipVersion><copyright> &lt;a href="https://advarra.com" target="_blank"&gt;&amp;copy; 2026 Advarra, Inc.&lt;/a&gt; </copyright></protocol_summary>