News from Biogen Inc. and partner Eisai Co. Ltd. that U.S. regulators accepted the BLA related to aducanumab for Alzheimer’s disease (AD) – and assigned it priority review, no less – set Wall Street abuzz, especially as the companies noted in their press release that the FDA “if possible, plans to act early” on the anti-amyloid beta (a-beta) monoclonal antibody. Regulators’ decision came about 30 days after they took receipt of the submission; they could have waited 60.

DBV Technologies SA officials took pains to reassure investors that data wanted by the FDA with regard to the BLA for Viaskin Peanut allergy therapy are already in hand and need only be turned over to the agency, but that didn’t stop shares (NASDAQ:DBVT) from sliding 55.7%, or $2.93, to close March 17 at $2.33.