ERBB2 and non-small cell lung carcinoma: A recent phase II basket trial demonstrated a 51% response rate in 49 patients with ERBB2-amplified or mutant NSCLC treated with ado-trastuzumab emtansine (T-DM1), an anti-ERBB2/HER2 antibody-drug conjugate (ADC), suggesting that ADCs are effective in patients with ERBB2-aberrant NSCLC.