Pembrolizumab
Merck
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just to note, -sponsored, -led s1801 trial was just presented s presidential symposium, and winner tweeted about it! this counts as a major twitter career milestone for me! in which section of my cv do i put this? 
#MedicalOncologist tweeting on #immunotherapy, #drugdevelopment, #COVID19 & #HealthEcon. #NCI #CancerMoonshot Adult Immunotherapy Co-Chair. Tweets are mine.