Peptide research news

Every Monday, a roundup of the most important peptide research news from the past week: new studies, congresses and regulation. Always with links to sources.

Research news 2 November 2026 · 7 min read

Peptide News 44/2026: US Allows Six Peptides, Retatrutide

This week brought a story covered by just about every major news outlet in the world. The US Department of Health and Human Services opened the door for pharmacies to six popular peptides. On the same day, Eli Lilly released results from a head-to-head trial of retatrutide against Ozempic. We also bring you news from Europe and a study that was widely shared this week.

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Research news 6 min read

Peptide News 43/2026: Retatrutide, CagriSema and the US

This week was all about new results for peptide-based obesity drugs. Data on retatrutide were presented at a European sleep congress, data on CagriSema at a US menopause congress, and in the United States the debate over how to make peptides available in a regulated setting moved forward. We've picked out the most interesting news and explained why it matters.

26 October 2026 Read the roundup →