tucatinib,trastuzumab deruxtecan
seagen,daiichi sankyo,astrazeneca
['t-dxd', 'tucatinib']
tucatinib after t-dxd
median 6th treatment
efficacy is so so
mpfs 4.7m, mos 13m
#asco23 
I am a medical oncologist. My areas of expertise are breast cancer, sarcoma, gynecologic cancer, urologic cancer, and rare cancers.