A Pilot Trial of the Combination of Transgenic NY-ESO-1-reactive Adoptive Cellular Therapy with Dendritic Cell Vaccination with or without Ipilimumab
Theodore S Nowicki, Beata Berent-Maoz, Gardenia Cheung-Lau, Rong Rong Huang, Xiaoyan Wang, Jennifer Tsoi, Paula Kaplan-Lefko, Paula Cabrera, Justin Tran, Jia Pang, Mignonette Macabali, Ivan Perez Garcilazo, Ignacio Baselga Carretero, Anusha Kalbasi, Alistair J Cochran, Catherine S Grasso, Siwen Hu-Lieskovan, Bartosz Chmielowski, Begoña Comin-Anduix, Arun Singh, Antoni Ribas, Theodore S Nowicki, Beata Berent-Maoz, Gardenia Cheung-Lau, Rong Rong Huang, Xiaoyan Wang, Jennifer Tsoi, Paula Kaplan-Lefko, Paula Cabrera, Justin Tran, Jia Pang, Mignonette Macabali, Ivan Perez Garcilazo, Ignacio Baselga Carretero, Anusha Kalbasi, Alistair J Cochran, Catherine S Grasso, Siwen Hu-Lieskovan, Bartosz Chmielowski, Begoña Comin-Anduix, Arun Singh, Antoni Ribas
Abstract
Purpose: Transgenic adoptive cell therapy (ACT) targeting the tumor antigen NY-ESO-1 can be effective for the treatment of sarcoma and melanoma. Preclinical models have shown that this therapy can be improved with the addition of dendritic cell (DC) vaccination and immune checkpoint blockade. We studied the safety, feasibility, and antitumor efficacy of transgenic ACT with DC vaccination, with and without CTLA-4 blockade with ipilimumab.
Patients and methods: Freshly prepared autologous NY-ESO-1-specific T-cell receptor (TCR) transgenic lymphocytes were adoptively transferred together with NY-ESO-1 peptide-pulsed DC vaccination in HLA-A2.1-positive subjects alone (ESO, NCT02070406) or with ipilimumab (INY, NCT01697527) in patients with advanced sarcoma or melanoma.
Results: Six patients were enrolled in the ESO cohort, and four were enrolled in the INY cohort. Four out of six patients treated per ESO (66%), and two out of four patients treated per INY (50%) displayed evidence of tumor regression. Peripheral blood reconstitution with NY-ESO-1-specific T cells peaked within 2 weeks of ACT, indicating rapid in vivo expansion. Tracking of transgenic T cells to the tumor sites was demonstrated in on-treatment biopsies via TCR sequencing. Multiparametric mass cytometry of transgenic cells demonstrated shifting of transgenic cells from memory phenotypes to more terminally differentiated effector phenotypes over time.
Conclusions: ACT of fresh NY-ESO-1 transgenic T cells prepared via a short ex vivo protocol and given with DC vaccination, with or without ipilimumab, is feasible and results in transient antitumor activity, with no apparent clinical benefit of the addition of ipilimumab. Improvements are needed to maintain tumor responses.
Conflict of interest statement
DISCLOSURE OF POTENTIAL CONFLICTS OF INTEREST: A.R. has received honoraria from consulting with Bristol Myers-Squibb, Amgen, Chugai, Genentech, Merck, Novartis and Roche, is in the scientific advisory board of Advaxis, Arcus, Bioncotech, Compugen, CytomX, Five Prime, FLX-Bio, ImaginAb, Isoplexis, Merus and Rgenix, during the conduct of this work was in the scientific advisory board and held stock in Kite-Pharma, and is co-founder of PACT Pharma and Tango Therapeutics. S.H-L. has received consulting fees from Merck, Amgen, Genmab, Bristol Myers-Squibb, Xencor and Vaccinex; research support from Bristol Myers-Squibb, Merck and Vaccinex; and has performed contracted clinical research with Pfizer, Genentech, Astellas, Neon Therapeutics, F Star, Xencor, and Nektar Therapeutics. B.C. has served on the advisory boards for HUYA, Compugen, Array, Regeneron, Iovance, Lilly, Biothera and on speaker bureau for Genentech and Janssen. A.S. has served on the advisory board and Speaker’s Bureau for Eli Lilly, the Speaker’s Bureau for Novartris and OncLive, the advisory board for Daiichi Sankyo, and has served on the board of directors and owns stock in Certis Oncology Solutions. The other authors declare no potential conflicts of interest.
©2018 American Association for Cancer Research.
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Source: PubMed