A 66-year-old Taiwanese female with no history of smoking was diagnosed in July 2017 with lower upper lobe (LUL) lung adenocarcinoma...and the 19del/T790M/cis-C797S mutation was detected again by NGS from liver biopsy...we decided to start 90 mg of brigatinib once daily to alleviate bony metastasis between November 2021 and January 2022. During the therapy period, a complete response was noted over the skull (Figure 4), and a stable status was observed over lung cancer and liver metastasis.