About two months after Astrazeneca plc said its application for sipavibart (AZD-3152) had been accepted by the EMA for pre-exposure prophylaxis (PrEP) against COVID-19 in immunocompromised people, Invivyd Inc. unveiled positive 180-day exploratory efficacy data from the company’s ongoing Canopy phase III trial with Pemgarda (pemivibart) in the same indication – and made known less happy news from regulators on the other side of the pond.