I've found this: 100B in 2015 (worldwide). It probably didn't go down since then

www.usnews.com/news/blogs/data-mine/2015/05/05/global-cancer-spending-reaches-100b

That's cancer _treatment_, not cancer _research_, which is a whole different ballpark.

Ah yes, you're right. I just couldn't believe the number is that low since it looks so big from the inside (AACR had like 100k attendees). Especially when you compare this number to tech acquisitions...