**COMMENTS ARE NOW CLOSED.** The draft document “ISBT 128 Standard Use of Clinical Trials Product Description Codes (PDCs)” is available for public review and comment. This Standard provides guidance on the use of a new category of Product Description Codes (PDCs) specifically developed for clinical trials products. These Clinical Trials PDCs are standardized global identifiers allocated by ICCBBA, which may be used by organizations licensed with ICCBBA, including clinical trials facilities, clinical trial sponsors, and cell and gene therapy manufacturers. Your comments and suggestions will be greatly appreciated. Please submit comments to standards.dev.mgr@isbt128.org by November 30, 2020.