TY - JOUR
T1 - Interleukin-15-armoured GPC3 CAR T cells for patients with solid cancers
AU - Steffin, David
AU - Ghatwai, Nisha
AU - Montalbano, Antonino
AU - Rathi, Purva
AU - Courtney, Amy N.
AU - Arnett, Azlann B.
AU - Fleurence, Julien
AU - Sweidan, Ramy
AU - Wang, Tao
AU - Zhang, Huimin
AU - Masand, Prakash
AU - Maris, John M.
AU - Martinez, Daniel
AU - Pogoriler, Jennifer
AU - Varadarajan, Navin
AU - Thakkar, Sachin G.
AU - Lyon, Deborah
AU - Lapteva, Natalia
AU - Zhuyong, Mei
AU - Patel, Kalyani
AU - Lopez-Terrada, Dolores
AU - Ramos, Carlos A.
AU - Lulla, Premal
AU - Armaghany, Tannaz
AU - Grilley, Bambi J.
AU - Gottschalk, Stephen
AU - Dotti, Gianpietro
AU - Metelitsa, Leonid S.
AU - Heslop, Helen E.
AU - Brenner, Malcolm K.
AU - Sumazin, Pavel
AU - Heczey, Andras
N1 - © 2024. The Author(s), under exclusive licence to Springer Nature Limited.
PY - 2025/1/23
Y1 - 2025/1/23
N2 - Interleukin-15 (IL-15) promotes the survival of T lymphocytes and enhances the antitumour properties of chimeric antigen receptor (CAR) T cells in preclinical models of solid neoplasms in which CAR T cells have limited efficacy1, 2, 3–4. Glypican-3 (GPC3) is expressed in a group of solid cancers5, 6, 7, 8, 9–10, and here we report the evaluation in humans of the effects of IL-15 co-expression on GPC3-expressing CAR T cells (hereafter GPC3 CAR T cells). Cohort 1 patients (NCT02905188 and NCT02932956) received GPC3 CAR T cells, which were safe but produced no objective antitumour responses and reached peak expansion at 2 weeks. Cohort 2 patients (NCT05103631 and NCT04377932) received GPC3 CAR T cells that co-expressed IL-15 (15.CAR), which mediated significantly increased cell expansion and induced a disease control rate of 66% and antitumour response rate of 33%. Infusion of 15.CAR T cells was associated with increased incidence of cytokine release syndrome, which was controlled with IL-1/IL-6 blockade or rapidly ameliorated by activation of the inducible caspase 9 safety switch. Compared with non-responders, tumour-infiltrating 15.CAR T cells from responders showed repression of SWI/SNF epigenetic regulators and upregulation of FOS and JUN family members, as well as of genes related to type I interferon signalling. Collectively, these results demonstrate that IL-15 increases the expansion, intratumoural survival and antitumour activity of GPC3 CAR T cells in patients.
AB - Interleukin-15 (IL-15) promotes the survival of T lymphocytes and enhances the antitumour properties of chimeric antigen receptor (CAR) T cells in preclinical models of solid neoplasms in which CAR T cells have limited efficacy1, 2, 3–4. Glypican-3 (GPC3) is expressed in a group of solid cancers5, 6, 7, 8, 9–10, and here we report the evaluation in humans of the effects of IL-15 co-expression on GPC3-expressing CAR T cells (hereafter GPC3 CAR T cells). Cohort 1 patients (NCT02905188 and NCT02932956) received GPC3 CAR T cells, which were safe but produced no objective antitumour responses and reached peak expansion at 2 weeks. Cohort 2 patients (NCT05103631 and NCT04377932) received GPC3 CAR T cells that co-expressed IL-15 (15.CAR), which mediated significantly increased cell expansion and induced a disease control rate of 66% and antitumour response rate of 33%. Infusion of 15.CAR T cells was associated with increased incidence of cytokine release syndrome, which was controlled with IL-1/IL-6 blockade or rapidly ameliorated by activation of the inducible caspase 9 safety switch. Compared with non-responders, tumour-infiltrating 15.CAR T cells from responders showed repression of SWI/SNF epigenetic regulators and upregulation of FOS and JUN family members, as well as of genes related to type I interferon signalling. Collectively, these results demonstrate that IL-15 increases the expansion, intratumoural survival and antitumour activity of GPC3 CAR T cells in patients.
KW - Humans
KW - Interleukin-15/metabolism
KW - Glypicans/metabolism
KW - Neoplasms/immunology
KW - T-Lymphocytes/immunology
KW - Female
KW - Male
KW - Receptors, Chimeric Antigen/immunology
KW - Immunotherapy, Adoptive
KW - Middle Aged
KW - Cohort Studies
KW - Adult
KW - Aged
KW - Cytokines/metabolism
KW - Cell Proliferation
UR - http://www.scopus.com/inward/record.url?scp=85210508893&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85210508893&partnerID=8YFLogxK
U2 - 10.1038/s41586-024-08261-8
DO - 10.1038/s41586-024-08261-8
M3 - Article
C2 - 39604730
AN - SCOPUS:85210508893
SN - 0028-0836
VL - 637
SP - 940
EP - 946
JO - Nature
JF - Nature
IS - 8047
M1 - 550
ER -