학술논문
Codon-specific KRASmutations predict survival benefit of trifluridine/tipiracil in metastatic colorectal cancer
Document Type
Article
Author
van de Haar, Joris; Ma, Xuhui; Ooft, Salo N.; van der Helm, Pim W.; Hoes, Louisa R.; Mainardi, Sara; Pinato, David J.; Sun, Kristi; Salvatore, Lisa; Tortora, Giampaolo; Zurlo, Ina Valeria; Leo, Silvana; Giampieri, Riccardo; Berardi, Rossana; Gelsomino, Fabio; Merz, Valeria; Mazzuca, Federica; Antonuzzo, Lorenzo; Rosati, Gerardo; Stavraka, Chara; Ross, Paul; Rodriquenz, Maria Grazia; Pavarana, Michele; Messina, Carlo; Iveson, Timothy; Zoratto, Federica; Thomas, Anne; Fenocchio, Elisabetta; Ratti, Margherita; Depetris, Ilaria; Cergnul, Massimiliano; Morelli, Cristina; Libertini, Michela; Parisi, Alessandro; De Tursi, Michele; Zanaletti, Nicoletta; Garrone, Ornella; Graham, Janet; Longarini, Raffaella; Gobba, Stefania Maria; Petrillo, Angelica; Tamburini, Emiliano; La Verde, Nicla; Petrelli, Fausto; Ricci, Vincenzo; Wessels, Lodewyk F. A.; Ghidini, Michele; Cortellini, Alessio; Voest, Emile E.; Valeri, Nicola
Source
Nature Medicine; March 2023, Vol. 29 Issue: 3 p605-614, 10p
Subject
Language
ISSN
10788956; 1546170X
Abstract
Genomics has greatly improved how patients with cancer are being treated; however, clinical-grade genomic biomarkers for chemotherapies are currently lacking. Using whole-genome analysis of 37 patients with metastatic colorectal cancer (mCRC) treated with the chemotherapy trifluridine/tipiracil (FTD/TPI), we identified KRAScodon G12 (KRASG12) mutations as a potential biomarker of resistance. Next, we collected real-world data of 960 patients with mCRC receiving FTD/TPI and validated that KRASG12mutations were significantly associated with poor survival, also in analyses restricted to the RAS/RAFmutant subgroup. We next analyzed the data of the global, double-blind, placebo-controlled, phase 3 RECOURSE trial (n= 800 patients) and found that KRASG12mutations (n= 279) were predictive biomarkers for reduced overall survival (OS) benefit of FTD/TPI versus placebo (unadjusted interaction P= 0.0031, adjusted interaction P= 0.015). For patients with KRASG12mutations in the RECOURSE trial, OS was not prolonged with FTD/TPI versus placebo (n= 279; hazard ratio (HR) = 0.97; 95% confidence interval (CI) = 0.73–1.20; P= 0.85). In contrast, patients with KRASG13mutant tumors showed significantly improved OS with FTD/TPI versus placebo (n= 60; HR = 0.29; 95% CI = 0.15–0.55; P< 0.001). In isogenic cell lines and patient-derived organoids, KRASG12mutations were associated with increased resistance to FTD-based genotoxicity. In conclusion, these data show that KRASG12mutations are biomarkers for reduced OS benefit of FTD/TPI treatment, with potential implications for approximately 28% of patients with mCRC under consideration for treatment with FTD/TPI. Furthermore, our data suggest that genomics-based precision medicine may be possible for a subset of chemotherapies.