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13.02.2019 | Original Article | Ausgabe 5/2019

Cancer Chemotherapy and Pharmacology 5/2019

Re-challenge of afatinib after 1st generation EGFR-TKI failure in patients with previously treated non-small cell lung cancer harboring EGFR mutation

Zeitschrift:
Cancer Chemotherapy and Pharmacology > Ausgabe 5/2019
Autoren:
Ou Yamaguchi, Kyoichi Kaira, Atsuto Mouri, Ayako Shiono, Kosuke Hashimoto, Yu Miura, Fuyumi Nishihara, Yoshitake Murayama, Kunihiko Kobayashi, Hiroshi Kagamu
Wichtige Hinweise
A correction to this article is available online at https://​doi.​org/​10.​1007/​s00280-019-03984-2.

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Abstract

Background

Re-challenge of erlotinib after gefitinib failure is reported to yield some benefit in patients with non-small cell lung cancer (NSCLC) harboring epidermal growth factor receptor (EGFR) mutation. However, little is known about the re-challenge of afatinib after 1st generate on EGFR tyrosine kinase inhibitor (TKI) failure.

Methods

From May 2015 to August 2018, 62 patients with advanced NSCLC harboring sensitive EGFR mutation received afatinib after gefitinib and/or erlotinib failure at our institution was included in our retrospective study.

Results

The overall response rate (ORR) and disease control rate (DCR) of afatinib as re-challenge were 17.0% and 79.2%, respectively. The median time on treatment of 1st generation EGFR-TKI (1st TKI) was 14 months. By multivariate analysis, smoking, performance status (PS), and time on treatment of 1st TKI with more than 10 months were confirmed to be independent prognostic factors predicting a worse progression-free survival (PFS), and significant prognostic markers for overall survival (OS) were PS and time on treatment of 1st TKI with more than 10 months, especially in patients with exon 19 deletion.

Conclusions

Re-challenge of afatinib was identified as one of the therapeutic options after 1st TKI failure in the patients with advanced NSCLC harboring EGFR mutation when the time of treatment by prior 1st TKI is more than 10 months.

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