Educational information only — not medical advice. Most peptides here are not FDA-approved.
MyPeps

New developments in peptide research for weight loss and diabetes

October 8, 2026 · 2 min read

Researchers are studying several peptides for weight loss and diabetes, including retatrutide and cagrilintide.

Man and woman cooking a healthy meal together

Key takeaways

  • Retatrutide, a triple-hormone agonist, has shown up to 25% weight loss in clinical trials.
  • Cagrilintide, an amylin analog, is being developed in combination with semaglutide as CagriSema.
  • Tirzepatide and semaglutide are FDA-approved for weight loss and diabetes treatment.
  • Research on these peptides is ongoing, with more studies needed to fully understand their effects.

Recent studies have highlighted the potential of peptides in treating weight loss and diabetes. Semaglutide and Tirzepatide are already FDA-approved for these conditions, while Retatrutide and Cagrilintide are still in development.

Retatrutide's phase 3 weight-loss numbers

{{retatrutide}} Retatrutide has shown significant weight loss in clinical trials, with some participants achieving up to 25% weight loss. This is a promising result, especially considering the limited treatment options available for obesity. The TRIUMPH-1 trial, published in the New England Journal of Medicine, demonstrated the efficacy of retatrutide in treating obesity.

Cagrilintide's development as CagriSema

{{cagrilintide}} Cagrilintide is being developed in combination with semaglutide as CagriSema. This combination therapy has shown potential in treating obesity and diabetes, with a recent study published in Diabetes, Obesity and Metabolism demonstrating its efficacy in reaching anthropometric treatment targets and improving cardiometabolic outcomes.

Comparison of peptides

PeptideWhat it isFDA statusEvidenceHalf-lifeBanned in sport
RetatrutideTriple-hormone agonistNot FDA-approved46 daysNo
TirzepatideDual GIP/GLP-1 agonistFDA-approved55 daysNo
SemaglutideGLP-1 receptor agonistFDA-approved57 daysNo
CagrilintideAmylin analogNot FDA-approved47-8 daysNo

The bottom line

While these peptides show promise in treating weight loss and diabetes, more research is needed to fully understand their effects. It's essential to consult with a healthcare professional before considering any treatment options.

This is educational information, not medical advice.

Sources

No sources were cited.

Get the next one by email

New posts, price drops and FDA or WADA changes. Pick what you want.

What to email you about

Confirm once and get our free printable mixing cheat sheet. Then only what you picked; unsubscribe from any email.