A Novel Autologous CAR-T Therapy, YTB323, with Preserved T-cell Stemness Shows Enhanced CAR T-cell Efficacy in Preclinical and Early Clinical Development

Michael Dickinson, Pere Barba, Ulrich Jäger, Nirav N. Shah, Didier Blaise, Javier Briones Meijide, Leyla Shune, Nicolas Boissel, Attilio Bondanza, Luisa Mariconti, Anne-Laure Marchal, David S. Quinn, Jennifer Yang, Andrew Price, Akash Sohoni, Louise M. Treanor, Elena J. Orlando, Jennifer Mataraza, Jaclyn Davis, Darlene LuXu Zhu, Boris Engels, Laure Moutouh-de Parseval, Jennifer L. Brogdon, Michele Moschetta, Ian W. Flinn

Research output: Contribution to journalArticleResearchpeer-review

67 Citations (Scopus)

Abstract

YTB323, a CD19-directed chimeric antigen receptor (CAR) T-cell therapy, retains T-cell stemness after a manufacturing process time of less than 2 days and demonstrates clinical antitumor activity at significantly lower doses than traditionally manufactured CAR T cells. Traditional CAR T-cell manufacturing requires extended ex vivo cell culture, reducing naive and stem cell memory T-cell populations and diminishing antitumor activity. YTB323, which expresses the same validated CAR as tisagenlecleucel, can be manufactured in <2 days while retaining T-cell stemness and enhancing clinical activity at a 25-fold lower dose.
Original languageEnglish
Pages (from-to)1982-1997
Number of pages16
JournalCancer Discovery
Volume13
DOIs
Publication statusPublished - 2023

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