<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>563</id><no>NCT01892345</no><status>Open</status><title>A Randomized, Double-Blind, Placebo-Controlled, Multi-Center Trial To Evaluate The Safety And Efficacy Of Eculizumab In Patients With Relapsing Neuromyelitis Optica (NMO)</title><secondary_protocol_no>ECU-NMO-301</secondary_protocol_no><nct_id>NCT01892345</nct_id><sponsor_type>Industrial</sponsor_type><age_group>Adult</age_group><treatment_type>Treatment</treatment_type><disease_site>Other</disease_site><PI>Amjad, Faria</PI><management_group>GUMC Neurology</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>