Abstract
Molecular modifiers of KRASG12C inhibitor (KRASG12Ci) efficacy in advanced KRASG12C-mutant NSCLC are poorly defined. In a large unbiased clinicogenomic analysis of 424 patients with non–small cell lung cancer (NSCLC), we identified and validated coalterations in KEAP1, SMARCA4, and CDKN2A as major independent determinants of inferior clinical outcomes with KRASG12Ci monotherapy. Collectively, comutations in these three tumor suppressor genes segregated patients into distinct prognostic subgroups and captured ∼50% of those with early disease progression (progression-free survival ≤3 months) with KRASG12Ci. Pathway-level integration of less preva-lent coalterations in functionally related genes nominated PI3K/AKT/MTOR pathway and additional baseline RAS gene alterations, including amplifications, as candidate drivers of inferior outcomes with KRASG12Ci, and revealed a possible association between defective DNA damage response/repair and improved KRASG12Ci efficacy. Our findings propose a framework for patient stratification and clinical outcome prediction in KRASG12C-mutant NSCLC that can inform rational selection and appropriate tailoring of emerging combination therapies. SIGNIFICANCE: In this work, we identify co-occurring genomic alterations in KEAP1, SMARCA4, and CDKN2A as independent determinants of poor clinical outcomes with KRASG12Ci monotherapy in advanced NSCLC, and we propose a framework for patient stratification and treatment personalization based on the comutational status of individual tumors.
Original language | English (US) |
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Pages (from-to) | 1556-1571 |
Number of pages | 16 |
Journal | Cancer discovery |
Volume | 13 |
Issue number | 7 |
DOIs | |
State | Published - 2023 |
Funding
M.V. Negrao acknowledges research funding from Rexanna’s Foundation for Fighting Lung Cancer. J. Hines acknowledges research funding from an NIH Clinical Therapeutics Training Grant (T32-GM07019). M.M. Awad was supported in part by the Elva J. and Clayton L. McLaughlin Fund for Lung Cancer Research, Team Stuie, and LUNGSTRONG. Work in F. Skoulidis’s laboratory was supported in part by NIH/NCI 1R01 CA262469-01 and the Tammi Hissom Grant from Rexanna’s Foundation for Fighting Lung Can-cer. This work was supported by the generous philanthropic contributions to The University of Texas MD Anderson Lung Moon Shot Program and the MD Anderson Cancer Center Support Grant P30 CA016672. We acknowledge the MD Anderson GEMINI Team for their contributions to this article. The publication costs of this article were defrayed in part by the payment of publication fees. Therefore, and solely to indicate this fact, this article is hereby marked “advertisement” in accordance with 18 USC section 1734. M.V. Negrao acknowledges research funding from Rexanna’s Foundation for Fighting Lung Cancer. J. Hines acknowledges research funding from an NIH Clinical Therapeutics Training Grant (T32-GM07019). M.M. Awad was supported in part by the Elva J. and Clayton L. McLaughlin Fund for Lung Cancer Research, Team Stuie, and LUNGSTRONG. Work in F. Skoulidis’s laboratory was supported in part by NIH/NCI 1R01 CA262469-01 and the Tammi Hissom Grant from Rexanna’s Foundation for Fighting Lung Cancer. This work was supported by the generous philanthropic contributions to The University of Texas MD Anderson Lung Moon Shot Program and the MD Anderson Cancer Center Support Grant P30 CA016672. We acknowledge the MD Anderson GEMINI Team for their contributions to this article.
ASJC Scopus subject areas
- Oncology