Scarlet Therapeutics Ltd. has demonstrated its manufactured red blood cells (RBCs) act in the same way as their natural counterparts in vivo, opening the way for the cells to be used as drug delivery vehicles and raising the possibility they could replace conventional blood transfusions. To build on this, Scarlet has closed a $4 million seed round to work on the first clinical application, in which RBCs loaded with therapeutic proteins will be used to treat rare metabolic diseases.

The U.S. FDA approved Corcept Therapeutics Inc.’s oral, selective glucocorticoid receptor antagonist, Lifyorli (relacorilant), nearly four months ahead of schedule for adults with platinum-resistant epithelial ovarian, fallopian tube or primary peritoneal cancer. A short time after the agency approved Lifyorli, it cleared Denali Therapeutics Inc.’s Avlayah (tividenofusp alfa) under the accelerated approval pathway for mucopolysaccharidosis II, also called Hunter syndrome, ahead of the April 5 PDUFA date.

A new study has reinforced that GLP-1 receptor agonists are unlikely to produce durable weight loss, but indicates that rather than returning to the starting weight, individual weight gain will plateau at 75.5% of the weight lost.