We all know Keytruda is the number one cancer killer out there maybe, if combo data failed, i don't think other BP willing to PAY to collabrate with advaxis. Share price will tank to bottom, investors going to loose confidence over P3,dual, Neo everthing you can count on. as a result, company will struggle to raise money, on the brink of ruin again. of course we expect good PSA data. 2018 is very important year for Advaxis. Just my thoughts and opinion based on some bio stocks I track from last year.