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EGFR-TKIs plus local therapy demonstrated survival benefit than EGFR-TKIs alone in EGFR-mutant NSCLC patients with oligometastatic or oligoprogressive liver metastases.

Abstract：

:To investigate whether addition of local therapy to EGFR-TKIs could provide survival benefit than EGFR-TKIs alone in EGFR-mutant NSCLC patients with oligometastatic or oligoprogressive liver metastases (LM). Patients with EGFR-mutant NSCLC and oligometastatic or oligoprogressive LM who met inclusion criteria were retrospectively identified. The primary endpoint was progression-free survival (PFS); secondary endpoints included overall survival (OS) and patterns of failure. Addition of local therapy was associated with a significantly longer PFS (13.8 vs. 8.6 m, p <0.001) and OS (31.2 vs. 18.5 m, p <0.001) in whole group. In oligometastatic cohort, 20 patients received EGFR-TKIs and 23 received EGFR-TKIs plus local therapy as first-line treatment. Addition of local therapy showed a significantly longer PFS (12.9 vs. 7.9 m, p = 0.041) and OS (36.8 vs. 21.3 m, p = 0.034) than EGFR-TKIs alone. In oligoprogressive cohort, 24 patients received continuation of EGFR-TKIs plus local therapy and 25 received switching chemotherapy. Median PFS2 (13.9 vs. 9.2 m, p = 0.007) and OS (28.3 vs. 17.1 m, p = 0.011) was significantly longer in combined group than in switching chemotherapy group. Distant metastatic sites progression was the major pattern of failure in combined group while locoregional recurrence was the major reason in monotherapy or switching chemotherapy group. Our study suggested that EGFR-TKIs plus local therapy showed prolonged survival benefit than EGFR-TKIs alone in EGFR-mutant NSCLC patients with oligometastatic or oligoprogressive LM, indicating addition of local therapy would be alternative choice in this clinical scenario.

journal_name

Int J Cancer

journal_title

International journal of cancer

authors

Jiang T,Chu Q,Wang H,Zhou F,Gao G,Chen X,Li X,Zhao C,Xu Q,Li W,Wu F,Xiong A,Zhao J,Xu Y,Su C,Ren S,Zhou C,Hirsch FR

doi

10.1002/ijc.31962

subject

Has Abstract

pub_date

2019-05-15 00:00:00

pages

2605-2612

issue

eissn

0020-7136

issn

1097-0215

journal_volume

144

pub_type

杂志文章

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EGFR-TKIs plus local therapy demonstrated survival benefit than EGFR-TKIs alone in EGFR-mutant NSCLC patients with oligometastatic or oligoprogressive liver metastases.