The U.S. Department of Health and Human Services (HHS) and the FDA already are getting a glimpse of the post-Chevron world and how the Supreme Court’s June 28 unwinding of the 40-year-old Chevron deference could rein in agency policies that defy Congress’ expressed intent.

At a time when much of the biopharma space can’t seem to get enough of antibody-drug conjugates (ADC), Bristol Myers Squibb Co. is backing away from a potential $3 billion-plus collaboration with Eisai Co. Ltd., handing back full rights to the latter’s folate receptor alpha-targeting ADC, farletuzumab ecteribulin (FZEC), citing a portfolio reprioritization.

At a time when much of the biopharma space can’t seem to get enough of antibody-drug conjugates (ADC), Bristol Myers Squibb Co. is backing away from a potential $3 billion-plus collaboration with Eisai Co. Ltd., handing back full rights to the latter’s folate receptor alpha-targeting ADC, farletuzumab ecteribulin (FZEC), citing a portfolio reprioritization. Global rights to FZEC now reside with Tokyo-based Eisai, which said it intends to accelerate work on the candidate, which is in three clinical studies, including two phase II trials in gynecological cancers and non-small-cell lung cancer.

Bristol Myers Squibb Co. has identified proteolysis targeting chimera (PROTAC) compounds comprising a E3 ubiquitin ligase-binding moiety coupled to a proto-oncogene tyrosine-protein kinase receptor Ret (RET; CDHF12; PTC) targeting moiety through a linker reported to be useful for the treatment of cancer.

Bristol Myers Squibb Co. and Celgene Corp. have described MAP kinase-activated protein kinase 2 (MAPKAPK2; MK2) inhibitors reported to be useful for the treatment of inflammation, cancer, fibrosis, autoimmune disorders, cardiovascular disorders, metabolic disorders and cerebrovascular disorders.