<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>13564</id><no>718-CIH-202</no><status>Open (affiliates only)</status><title>A 28-Day Randomized, Placebo-Controlled, Double-Blind, Parallel Groups and Normative Comparison Study to Evaluate the Effect of SAGE-718 on Functioning Capacity in Participants with Huntington's Disease</title><secondary_protocol_no> 718-CIH-202 </secondary_protocol_no><nct_id>NCT05358821</nct_id><sponsor_type>Industrial</sponsor_type><age_group>Adult</age_group><treatment_type>Treatment</treatment_type><disease_site>Other</disease_site><PI>Anderson, Karen</PI><institution>Georgetown University Medical Center; Lombardi Comprehensive Cancer Center</institution><management_group>GUMC Huntington Disease Care Ed &amp; Rsch Center</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>