<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>14266</id><no>ION-682884-CS12</no><status>Open (affiliates only)</status><title>An Open-Label Extension Study to Assess the Long-Term Safety of&#xD;
Eplontersen (ION-682884) in Patients with Transthyretin-Mediated&#xD;
Amyloid Cardiomyopathy (ATTR-CM) </title><sponsor_type>Industrial</sponsor_type><age_group>Adult</age_group><treatment_type>Treatment</treatment_type><disease_site>Transthyretin amyloid cardiomyopathy (ATTR)</disease_site><PI>Sheikh, Farooq</PI><institution>Medstar Washington Hospital 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>