<?xml version="1.0" encoding="UTF-8"?><protocol_summary><protocol><id>16581</id><no>DDD-SPECIMEN</no><status>Open (affiliates only)</status><title>Extracellular vesicles produced by CRISPR-activated MSCs: A potential therapy for degenerative disc disease</title><nct_id>NCT00000000</nct_id><sponsor_type>Institutional</sponsor_type><age_group>Adult</age_group><treatment_type>Observational</treatment_type><disease_site>Other</disease_site><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>