适应人群:
HER2 mutation was identified through next-generation sequencing (NGS) at a Clinical Laboratory Improvement Amendments–certified laboratory, including exon 20 insYVMA, insGSP, or insTGT; single–base pair substitutions L755A, L755S, V777L, V659E, or S310F; or other likely activating mutations.
使用方法和剂量:
ado-trastuzumab emtansine 3.6 mg/kg by intravenous infusion every 21 days until disease progression or unacceptable toxicity.