Church of PeptidesSearch
Investigational · Not FDA-approved

Retatrutide

Three signals. No final stamp.

From laboratory assays and mouse studies to early volunteers, larger trials and today’s open questions.

Journey published October 11, 2026 · Evidence reviewed 2026-10-11

Start at the beginning →Where we are today
  1. 01Three doors light upLY3437943 · Laboratory work reported 2022
  2. 02Before the human doorwayPreclinical mouse experiments · Reported 2022
  3. 03The first volunteer questionsHuman studies conducted 2019–2020
  4. 04The scale is not the whole storyPhase 2 studies · 2023–2025 publications
  5. 05The testing hall gets biggerPhase 3 · 2023–2026
  6. 06The stamp is still missingOctober–November 2026 trial analyses, regulatory decisions and conference reports
Today’s checkpoint

Phase 3 results have expanded the evidence. Retatrutide remains investigational; a successful trial is not an approval.

Open the medicine’s evidence profile · Other journeys

Documented milestones, not every unpublished experiment. The story is fictional; each chapter identifies the real study population and source.

Watch: Subject One’s first appointment