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Nat Med DOI:10.1038/s41591-019-0654-5

Integrative molecular and clinical modeling of clinical outcomes to PD1 blockade in patients with metastatic melanoma.

Publication TypeJournal Article
Year of Publication2019
AuthorsLiu, D, Schilling, B, Liu, D, Sucker, A, Livingstone, E, Jerby-Amon, L, Zimmer, L, Gutzmer, R, Satzger, I, Loquai, C, Grabbe, S, Vokes, N, Margolis, CA, Conway, J, He, MXiao, Elmarakeby, H, Dietlein, F, Miao, D, Tracy, A, Gogas, H, Goldinger, SM, Utikal, J, Blank, CU, Rauschenberg, R, von Bubnoff, D, Krackhardt, A, Weide, B, Haferkamp, S, Kiecker, F, Izar, B, Garraway, L, Regev, A, Flaherty, K, Paschen, A, Van Allen, EM, Schadendorf, D
JournalNat Med
Volume25
Issue12
Pages1916-1927
Date Published2019 Dec
ISSN1546-170X
Abstract

Immune-checkpoint blockade (ICB) has demonstrated efficacy in many tumor types, but predictors of responsiveness to anti-PD1 ICB are incompletely characterized. In this study, we analyzed a clinically annotated cohort of patients with melanoma (n = 144) treated with anti-PD1 ICB, with whole-exome and whole-transcriptome sequencing of pre-treatment tumors. We found that tumor mutational burden as a predictor of response was confounded by melanoma subtype, whereas multiple novel genomic and transcriptomic features predicted selective response, including features associated with MHC-I and MHC-II antigen presentation. Furthermore, previous anti-CTLA4 ICB exposure was associated with different predictors of response compared to tumors that were naive to ICB, suggesting selective immune effects of previous exposure to anti-CTLA4 ICB. Finally, we developed parsimonious models integrating clinical, genomic and transcriptomic features to predict intrinsic resistance to anti-PD1 ICB in individual tumors, with validation in smaller independent cohorts limited by the availability of comprehensive data. Broadly, we present a framework to discover predictive features and build models of ICB therapeutic response.

DOI10.1038/s41591-019-0654-5
Pubmed

http://www.ncbi.nlm.nih.gov/pubmed/31792460?dopt=Abstract

Alternate JournalNat. Med.
PubMed ID31792460
Grant ListR01 CA227388 / CA / NCI NIH HHS / United States
U01 CA233100 / CA / NCI NIH HHS / United States
SCHA 422/17-1; PA 2376/1-1; HO 6389/2-1 (KFO 337) / / Deutsche Forschungsgemeinschaft (German Research Foundation) /
T32 GM008313 / GM / NIGMS NIH HHS / United States