Small cell transformation during acquired resistance to zongertinib in HER2-mutant non-small cell lung cancer: a case report
Small cell transformation (SCT) is a known acquired resistance mechanism to targeted therapies in non-small cell lung cancer (NSCLC) but has not been reported following HER2 tyrosine kinase inhibitor (TKI) therapy. We report the first case of SCT detected during acquired resistance to zongertinib, a novel selective...