Building on a deal first struck in 2019, artificial intelligence (AI) specialist Exscientia Ltd. has agreed to take responsibility for a multitarget drug discovery collaboration with Bristol Myers Squibb Co. that could be worth more than $1.2 billion in all. The expanded collaboration, first established with BMS-acquired Celgene Corp., includes $50 million in up-front funding, up to $125 million in near to mid-term potential milestones, plus additional clinical, regulatory and commercial payments. It remains focused on small-molecule drug candidates in areas including oncology and immunology.