Shades of T790M: Intratumor Heterogeneity in EGFR-Mutant Lung Cancer.

Abstract:

:In the setting of recent exciting clinical results and numerous ongoing trials, Piotrowska and colleagues explore mechanisms of acquired resistance to the mutant-specific EGFR inhibitor rociletinib, and demonstrate that loss of T790M, EGFR amplification, and small-cell transformation are all clinically relevant mechanisms of drug resistance. The authors provide a new paradigm for using quantitative assessment of the EGFR T790M:activation mutation allele frequency ratio to prognosticate responses to rociletinib and also demonstrate that plasma-based assessments of circulating tumor DNA can be used to monitor drug response and the emergence of drug resistance.

journal_name

Cancer Discov

journal_title

Cancer discovery

authors

Ichihara E,Lovly CM

doi

10.1158/2159-8290.CD-15-0616

subject

Has Abstract

pub_date

2015-07-01 00:00:00

pages

694-6

issue

7

eissn

2159-8274

issn

2159-8290

pii

5/7/694

journal_volume

5

pub_type

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