Led by executives who helmed The Medicines Co., Metsera Inc. has launched with $290 million in financing to develop drugs for treating weight loss, obesity-related conditions and metabolic diseases. The company is stepping into high profile and lucrative glucagon-like peptide-1 territory forged by Eli Lilly and Co.’s Zepbound (tirzepatide) for chronic weight management and Novo Nordisk A/S’s Wegovy (semaglutide), also approved for long-term weight management.