<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>15411</id><no>PL101-HD501</no><status>Open</status><title>Pridopidine Expanded Access Protocol in Patients with Huntington's Disease</title><nct_id>NCT04556656</nct_id><sponsor_type>Industrial</sponsor_type><age_group>Adult</age_group><treatment_type>Expanded Access</treatment_type><phase>N/A</phase><disease_site>Other</disease_site><PI>Anderson, Karen</PI><institution>Georgetown University Medical Center : Erin Caruso; Lombardi Comprehensive Cancer Center : Erin Caruso</institution><item><contact_id>10904</contact_id><item_description>Erin Caruso</item_description><js_safe_str>Erin Caruso</js_safe_str><email>ek875@georgetown.edu</email></item></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>