<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>15676</id><no>NRG-HN009-NCT05050162</no><status>Open (affiliates only)</status><title>Comparing High-Dose Cisplatin Every Three Weeks to Low-Dose Cisplatin Weekly When Combined With Radiation for Patients With Advanced Head and Neck Cancer</title><secondary_protocol_no>NRG-HN009</secondary_protocol_no><nct_id>NCT05050162</nct_id><sponsor_type>National</sponsor_type><age_group>Adult</age_group><treatment_type>Treatment</treatment_type><phase>II/III</phase><scope>National</scope><disease_site>Other</disease_site><PI>Witek, Matthew</PI><institution>Georgetown University Medical Center; Lombardi Comprehensive Cancer Center</institution><oncology_group>Thoracic/CNS/H&amp;N/Thyroid<DOWG_name>Oncology Group</DOWG_name></oncology_group><management_group>Lombardi Comprehensive Cancer Center (LCCC)</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>