In a global first, Japan's Ministry of Health, Labor and Welfare has approved CSL Ltd.’s and Arcturus Therapeutics Inc.’s self-amplifying messenger RNA (sa-mRNA) vaccine (ARCT-154) for COVID-19 in adults. The approval marks the first milestone for a November 2022 licensing deal under which CSL subsidiary CSL Seqirus in-licensed Arcturus’ late-stage sa-mRNA vaccine platform technology.