A week after Bristol Myers Squibb Co. disclosed a significant restructuring plan to focus on long-term growth drivers, the big pharma partnered with Repertoire Immune Medicines Inc. in an early stage, multiyear collaboration to develop T-cell targeted medicines for up to three autoimmune diseases, paying $65 million up front, with a potential $1.8 billion in development, regulatory and commercial milestones, along with tiered royalties.