Core Insights - Viatris (VTRS) has acquired Tokyo-based Aculys Pharma, focusing on enhancing its Central Nervous System (CNS) portfolio and expanding its presence in Japan and the Asia-Pacific region [1][3][6] Acquisition Details - The acquisition involves an undisclosed upfront payment to Aculys Pharma's shareholders, with additional payments linked to regulatory and commercial milestones, as well as royalties based on net sales [2] - Viatris has secured exclusive rights to develop and commercialize pitolisant and Spydia (diazepam nasal spray) in Japan and select Asia-Pacific markets [1][6][7] Product Information - Pitolisant is a selective/inverse agonist of the histamine H3 receptor, with plans for marketing approval in Japan by the end of 2025 for treating excessive daytime sleepiness (EDS) and cataplexy in narcolepsy patients [4][9] - Spydia, approved in June 2025 in Japan, is the first intranasal anti-seizure medication for status epilepticus, addressing unmet needs in neurological emergencies [7][8] Strategic Rationale - The acquisition aims to leverage Viatris' commercial infrastructure and CNS expertise, aligning with its strategy to grow in high-impact therapeutic areas [9][10] - This move complements Viatris' existing innovative portfolio in Japan, which includes products for various conditions, thereby positioning the company for near- and mid-term growth [10]