Pharmaceutical US drug developer Biohaven, which is reinventing itself after selling its migraine business to Pfizer for $11 billion last year, says it has acquired global rights, excluding China regions, for the development of an oral, brain-penetrant, dual inhibitor of Tyrosine Kinase 2 (TYK2) and Janus Kinase 1 (JAK1) for the treatment of brain disorders. 23 March 2023