Two non-headline angles from the April 30 earnings cycle drove peptide-relevant news through May 2. Lilly's Q1 call disclosed positive topline results from TRANSCEND T2D1, the first Phase 3 trial of the triple GLP-1/GIP/glucagon agonist retatrutide in type 2 diabetes — A1c down 1.7 to 2.0 percentage points and 25 to 37 lb mean weight loss versus placebo, with seven additional Phase 3 readouts still to come this year. Amgen's same-day print confirmed MariTide MARITIME-1 is enrolling in obesity, MARITIME-2 EXTENSION has launched for weight-loss maintenance, and three Phase 3 type 2 diabetes studies are slated to start in 2026 — keeping the peptide-conjugate monthly-dosing thesis alive against the once-weekly Mounjaro/Zepbound machine. The Foundayo launch sub-narrative also clarified: 20,000 patients are now on the drug, more than 8,000 prescribers have written it (one-third are first-time oral GLP-1 prescribers), and commercial access is confirmed at two of the three largest U.S. PBMs effective mid-May. Beyond GLP-1s, a Mount Sinai paper in Nature Biotechnology overturned a longstanding mRNA-vaccine assumption by showing hepatocyte detargeting more than doubles cancer-vaccine efficacy in lymphoma models, BioVaxys' MVP-S survivin peptide-vaccine PESCO trial earned an ASCO 2026 acceptance in recurrent ovarian cancer, and Aivocode's CAQK tetrapeptide for traumatic brain injury — published in EMBO Molecular Medicine — moved closer to a planned U.S. IND. On the regulatory side, the Partnership for Safe Medicines threw its weight behind the FDA's April 30 503B-bulks-list proposal, and Orrick's May client memo translated what the rule shift means for outsourcing facilities, telehealth platforms, and weight-loss clinics still leaning on compounded GLP-1 supply.