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Cellular Therapy Coding and Labeling Advisory Group


The Cellular Therapy Coding and Labeling Advisory Group (CTCLAG) was established in 2004. Its purpose is to advise ICCBBA of the needs of cellular therapy organizations for coding and labeling. Membership comprises representatives from major cellular therapy professional organizations: AABB, APBMT, ASTCT, ASFA, EBMT, FACT, ISBT, ISCT, JACIE, NMDP and WMDA. Additionally, the group has invited technical experts to serve as voting members on the group.

Liaisons from other organizations, primarily representing regulatory bodies, also attend meetings. 

Vendors and other interested parties attend meetings as observers at the discretion of the chairperson.

CTCLAG Joint Statement - PDF


The public comment period for the ST-028 ISBT 128 Standard Chain of Identity Identifier v1.0.0 has ended. ICCBBA thanks CTCLAG members that helped with the distribution and notification of the ST-028 comment period. The Chain of Identity Identifier will provide the ability to link multiple collections/donations associated with therapy or therapies together. ICCBBA plans to publish a new standards document, a new implementation guide, and update ST-001 along with relevant documents in support of the Chain of Identity Identifier.


CTCLAG voted to approve the new Cell Therapy attribute for Gamma Delta T cell enriched and the attribute has been added to the database.


The IG-003 US Consensus Standard for Cell Therapy document is being updated to align with the changes made to ST-001 ISBT 128 Standard Technical Specification such as the expanded reference tables, new terms (e.g., "Donation" to "Collection" and "Patient ID" to "Recipient ID"). The data structures and label examples were updated to reflect those changes. The reference tables section was also updated. Volunteer representatives from US-based societies offered to help review/update the new version.


CTCLAG is currently working on developing ISBT 128 terminology and codes for exosomes. The group plans to consult with the International Society of Extracellular Vesicles (ISEV) and the ISCT Exosomes Committee about this topic.


ICCBBA’s Technical Director spoke at the Supply Chain & Logistics for Cell Therapies Summit held in April. The topic for implementation of labeling standards to facilitate apheresis collection was well received and there was a general emphasis on the ongoing need for standardization.


The proposal for a hybrid ISBT 128/sponsor label for apheresis collections as starting products for clinical trial products was approved and published in the ST-018 document. The hybrid label has the ISBT 128 Donation Identification Number (DIN) and Product Code information on the left half, and the right half of the label will contain standardized sponsor-required information.


Clinical trials facilities and study sponsors can request Product Description Codes (PDCs) for their clinical trial products for a specific trial. ICCBBA will issue PDCs specifically for clinical trial products as requests are received and maintain these codes in a separate Clinical Trials PDC Database.


CTCLAG meets monthly due to the rapidly evolving nature of the field.


ICCBBA has incorporated the use of Loomio to facilitate asynchronous TAG discussions.



  • Zbigniew Szczepiorkowski


  • Tamara Anderson - National Marrow Donor Program (NMDP) / Be the Match (Alt.)

  • Christina Celluzzi - Association for the Advancement of Blood & Biotherapies

  • Lou J. Bartolo - National Marrow Donor Program (NMDP) / Be the Match

  • Betty Doggett - American Society for Apheresis 

  • Lydia Foeken - World Marrow Donor Association

  • Marcos Hernández - Latin American Bone Marrow Transplantation Group

  • William Hwang - Asia Pacific Blood and Marrow Transplantation

  • Indreshpal Kaur - American Society for Transplantation and Cellular Therapy

  • Mickey Koh - International Society of Blood Transfusion 

  • Julia Palma - Latin American Bone Marrow Transplantation Group (Alt.)

  • Leigh Sims Poston - International Society Cell & Gene Therapy

  • Lex Van Der Gouw - European Group for Blood and Marrow Transplantation/ Joint Accreditation Committee ISCT-Europe & EBMT

  • Phyllis Warkentin - Foundation for the Accreditation of Cellular Therapy

Technical Experts

  • Beth Gardner

  • Joshua Geary

  • William Janssen

  • Kathy Loper

  • Anna Persson


  • Erica Agy

  • David Barwin

  • Geoff Browne

  • Tim Costello

  • Jeff Dragoo

  • Clement Glinkowski

  • John Gorowsky

  • Kimberly Jimenez

  • Kent Kirimli

  • Brian Kirkpatrick

  • John Kling

  • Dan Leberfinger

  • Renata Rocha

  • David Steiner

  • Daniel Waurzyniak

  • Renae Weaver

  • Tomasz Wojcicki

  • Bruce Wray


  • Francisca Agbanyo  – Health Canada

  • TBD – European Commission

  • Safa Karandish – U.S. Food and Drug Administration

  • Izabela Uhrynowska-Tyszkiewicz – ITTAG

ICCBBA Staff Liaison

  • Erwin Cabana

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