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.

People with the rare inherited metabolic disorder Gaucher disease have a deficiency in the lipid-digesting glucocerebrosidase enzyme, which causes the accumulation of harmful levels of glucolipids in various organs. The enzyme has a very short half-life, which rules out enzyme replacement as an effective therapy, and as things stand, there are few treatments for this and other lysosomal storage diseases (LSDs). Now, researchers have discovered two small molecules that enhance the activity of glucocerebrosidase in cellular models of LSD, pointing to a potential new approach to treating these diseases.

All patients dosed in a phase IIa trial with Tryptamine Therapeutics Ltd.’s (Tryp) oral psilocybin (TRP-8802) trial reported an improvement in fibromyalgia pain severity, sleep, and pain interference.

Headlines in March about Cartesian Therapeutics Inc. reminded investors of the firm’s already-intriguing push with Descartes-08, an autologous anti-BCMA mRNA CAR T therapy, in the works for myasthenia gravis and systemic lupus erythematosus. Excitement generally is mounting around prospects for CAR T therapies in autoimmune disease, where developers aplenty are pursuing early stage opportunities.