ECO 2026 Day 2 in Istanbul delivered the largest GLP-1 maintenance data set the field has seen. Eli Lilly published simultaneous SURMOUNT-MAINTAIN results in The Lancet and ATTAIN-MAINTAIN results in Nature Medicine on May 12: SURMOUNT-MAINTAIN showed lower-dose Zepbound (tirzepatide 5 mg) preserved all but 5.6 kg of maximum-tolerated-dose weight loss at week 112, while ATTAIN-MAINTAIN showed Foundayo (orforglipron) maintained 79.3% of injectable-treatment weight loss vs 37.6% on placebo — patients switching from Wegovy MTD lost only 0.9 kg additional, and Zepbound MTD switchers lost 5.0 kg. Viking Therapeutics' Phase 2 VENTURE-Oral full data presented May 12 showed oral VK2735 produced dose-dependent weight loss up to 12.2% (26.6 lbs) at 13 weeks with early Week 1 progression, supporting Q4 2026 Phase 3 plans. The Day 2 Novo Nordisk slate included new OASIS 4 subanalyses of the Wegovy pill (oral semaglutide 25 mg) — 27% of patients were early responders averaging 21.6% body weight loss at trial end, and 77.3% with poor baseline physical function achieved clinically meaningful mobility improvement vs 42.9% on placebo. The same OASIS 4 ITC analysis showed the Wegovy pill produced greater weight loss than orforglipron 36 mg with 14x lower odds of GI-driven discontinuation. Novo CEO Mike Doustdar's Q1 outlook commentary confirmed Wegovy pill international launches in H2 2026 with EU approval expected before year-end. On the non-GLP-1 side, PepGen announced a strategic pivot to its DM1 program after the 10 mg/kg PGN-EDO51 cohort delivered only 0.59% dystrophin in Duchenne muscular dystrophy — the FREEDOM2-DM1 Phase 2 program is now the lead clinical asset. A May 12 GlobeNewswire industry report projected the consumer peptide wellness market could approach $300B as the GHK-Cu, BPC-157, and TB-500 categories mainstream into supplements and cosmetics ahead of the July PCAC meeting. A March 2026 Frontiers in Bioinformatics review out of UNSW Sydney documented AI-driven antimicrobial peptide discovery achieving a 94.4% hit rate in 48 days — collapsing the traditional discovery timeline.