News

News & studies

Peptide studies and news in one picture each, with their sources: everything we post on social media, collected here.

27 October 2026

SATIETY PEPTIDES · COMPARISON

One, two, three receptors

Three generations of satiety peptides. Mean weight loss at the top dose of each pivotal phase 3 trial, in everyone who started.

Sources: Wilding NEJM 2021 · Lincoff NEJM 2023 · Wharton NEJM 2025 · Jastreboff NEJM 2022 · Aronne NEJM 2025 · Jastreboff NEJM 2026 · Lancet 2026.

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Amylin + GLP-1 in one shot: a decision is coming

27 October 2026

NEWS · FDA · DECISION BY END OF 2026

Amylin + GLP-1 in one shot: a decision is coming

The approval application for CagriSema (cagrilintide + semaglutide, once a week) went to the FDA on 18/12/2025. A decision is expected by the end of 2026.

Sources: Garvey NEJM 2025 · Davies NEJM 2025 · Novo Nordisk 2/2026 (REDEFINE 4) · Drugs.com 2026.

Cagrilintide

27 October 2026

NEWS · USA · FDA

The FDA and peptides: what's changing

An FDA advisory committee voted for 6 of 7 peptides to be made by compounding pharmacies. In October, an interim access policy went to the White House.

Sources: STAT 23/7/2026 · PharmExec 2026 · AJMC 31/7/2026 · AmSpa 16/10/2026 · GoodRx 10/2026.

27 October 2026

SPORT · WADA LIST 2027

Peptides and sport: the 2027 list

From 1/1/2027, "peptides" in general are named in WADA's S0 class. What applies to anyone who gets drug-tested.

Sources: WADA Prohibited List 2026 · USADA, 2027 List advisory · USADA, BPC-157 2022 · UKAD 2022 · Sport Integrity Australia.

26 October 2026

SEMAGLUTIDE · THE STUDIES

Semaglutide: what the studies showed

The most studied GLP-1 agonist: from weight to the heart and the kidneys.

Sources: Wilding NEJM 2021 (STEP 1) · Lincoff NEJM 2023 (SELECT) · Ryan Nat Med 2024 · Perkovic NEJM 2024 (FLOW) · Wharton Lancet Diabetes Endocrinol 2025 (STEP UP) · Wharton NEJM 2025 (OASIS 4).

Watch the video Semaglutide

25 October 2026

SATIETY PEPTIDES · THE STUDIES

Beyond the scale

From blood sugar to the heart, the kidneys and sleep: what was measured, organ by organ 🔬

Sources: N Engl J Med 2016–2026 · Lancet 2025–26 · JAMA 2024–25 · Nat Med 2024 · JAMA Psychiatry 2025 · FDA 2024–26. Full references in the post.

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25 October 2026

GHK-CU · THE STUDIES

GHK-Cu: more collagen, fewer wrinkles

A natural copper tripeptide in plasma that declines with age. It builds collagen and elastin, and slows the enzymes that break them down.

Sources: Abdulghani Dis Manag Clin Outcomes 1998 · Leyden AAD 2002 · Badenhorst J Aging Sci 2016 · Pickart Biomed Res Int 2015 · Schagen Cosmetics 2017.

Watch the video GHK-Cu

Retatrutide: what the clinical trials showed

24 October 2026

THE STUDIES, IN 25 SECONDS

Retatrutide: what the clinical trials showed

The triple agonist that made the numbers talk.

Sources: Jastreboff AM et al., N Engl J Med 2023 (phase 2) · Eli Lilly, TRIUMPH-1 to 4 results (2025–26).

Watch the video Retatrutide