<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>14639</id><no>IMPROVEMENT-NCT705289609</no><status>Open</status><title>International, Multicenter, Prospective, Non-competitive, Observational study to Validate and Optimize prediction models of 90-day and 1-year allograft failure after liver transplantation</title><nct_id>NCT05289609</nct_id><sponsor_type>Institutional</sponsor_type><age_group>Adult</age_group><treatment_type>Observational</treatment_type><scope>Global</scope><disease_site>Other</disease_site><PI>Nguyen, Brian</PI><institution>Georgetown University Medical Center : Ye Chen; Lombardi Comprehensive Cancer Center : Ye Chen</institution><management_group>GUMC Transplant</management_group><item><contact_id>15224</contact_id><item_description>Ye Chen</item_description><js_safe_str>Ye Chen</js_safe_str><email>yc1117@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>