<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>15753</id><no>RPL554-NCFB-220</no><status>Open</status><title>A Phase II, Randomized, Double-Blind, Placebo-Controlled Study of Ensifentrine in Subjects with Non-Cystic Fibrosis Bronchiectasis</title><nct_id>NCT06559150</nct_id><sponsor_type>Industrial</sponsor_type><age_group>Adult</age_group><treatment_type>Treatment</treatment_type><disease_site>Other</disease_site><PI>O'Donnell, Anne</PI><institution>Georgetown University Medical Center; Lombardi Comprehensive Cancer Center</institution></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>