The U.S. FDA clearance June 16 of CSL Behring LLC’s humanized anti-factor XIIa monoclonal antibody garadacimab (CSL-312) to prevent hereditary angioedema (HAE) attacks juiced up the space in which – although other therapies are available as well – developers continue working on new prospects.

How the U.S. FDA might respond became a serious question for Wall Street as Sarepta Therapeutics Inc. made known a second death due to acute liver failure with gene therapy Elevidys (delandistrogene moxeparvovec), cleared for Duchenne muscular dystrophy (DMD). Shares of Cambridge, Mass.-based Sarepta (NASDAQ:SRPT) closed June 16 at $20.94, down $15.24, or 42%, as Wall Street digested the news.

Biopharma deal activity continued its record-breaking pace in 2025, reaching $103.76 billion in total value through the first five months, the highest year-to-date total in BioWorld’s records. That figure marks a nearly 20% increase over the $86.68 billion recorded during the same period in 2024.

The BioWorld Neurological Diseases Index continued its downward slide into 2025, with 15 of the 20 component stocks posting losses. After dipping into negative territory in late February, the index dropped 15.99% by the end of March and closed May down 22.34%.

Four biotech companies from South Korea announced new or planned financings mid-June, including GC Genome Corp. Rznomics Inc., G2Gbio Inc. and Mezzion Pharma Co. Ltd. Six major mid-June deals included R&D pacts between Y-Biologics Inc. and Crosspoint Therapeutics, Daewoong Pharmaceutical Co. Ltd. and Salipro Biotech AB, Next & Bio Inc. and GC Cell Corp., Galux Inc. and Hanall Biopharma Co. Ltd., Celltrion Inc. and Onconic Therapeutics Inc., and SK Plasma Co. Ltd. and Aimedbio Inc.