Regeneron preliminary Q4 US sales of Eylea below expectations
Shares of Regeneron were down over 2% in premarket trading. Eylea, jointly developed with Bayer AG, has driven Regeneron's earnings for years, but sales have now come under pressure, partly from Roche's Vabysmo that secured U.S. approval in 2022. Regeneron has set its hopes on a higher-dose version of Eylea.