Article
Rechallenge with zongertinib after trastuzumab deruxtecan in HER2-mutant lung cancer: A case report.
Lung cancer (Amsterdam, Netherlands) - 1 Aug 2026
Koba Hayato, Tambo Yuichi, Murase Yuya, Yoh Kiyotaka, Izumi Hiroki, Nishiyama Akihiro, Sone Takashi, Shimizu Takahiro, Nomura Shunichi, Ueda Tsukasa, Arai Sachiko, Tanimoto Azusa, Nanjo Shigeki, Goto Koichi, Yano Seiji
Abstract excerpt
A 65-year-old man with advanced lung adenocarcinoma underwent comprehensive genomic profile testing using a blood sample after completion of standard therapy, which identified a HER2 mutation. The HER2- tyrosine kinase inhibitor (TKI); zongertinib achieved partial response; however, the tumor grew, prompting a repeat biopsy 22 months later. Repeat biopsy demonstrated HER2 protein expression and HER2...
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