<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>17054</id><no>MK-2870-023-NCT06422143</no><status>Open</status><title>MK-2870-023: A Phase 3 Study of Pembrolizumab in Combination With Carboplatin/Taxane (Paclitaxel or Nab-paclitaxel) followed by Pembrolizumab With or Without Maintenance MK-2870 in the First-line Treatment of Metastatic Squamous Non-small Cell Lung Cancer</title><secondary_protocol_no>MK-2870-023</secondary_protocol_no><nct_id>NCT06422143</nct_id><sponsor_type>Industrial</sponsor_type><age_group>Adult</age_group><treatment_type>Treatment</treatment_type><phase>III</phase><scope>Global</scope><disease_site>Lung</disease_site><PI>Chen, Kevin; Jeon, Hyein</PI><institution>MedStar Health and GUMC; Medstar Washington Hospital Center : Leila Sounna</institution><oncology_group>Thoracic/CNS/H&amp;N/Thyroid<DOWG_name>Oncology Group</DOWG_name></oncology_group><management_group>MHRI Washington Cancer Institute</management_group><item><contact_id>7150</contact_id><item_description>Jennifer Latteri</item_description><js_safe_str>Jennifer Latteri</js_safe_str><email>jennifer.a.latteri@medstar.net</email></item><item><contact_id>13705</contact_id><item_description>Leila Sounna</item_description><js_safe_str>Leila Sounna</js_safe_str><email>Leila.Sounna@Medstar.net</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>