---
title: "TRIUMPH-5: Retatrutide Phase 3 Trial | Primara Labs"
url: https://www.primaralabs.com/research/trials/triumph-5
source: Primara Labs, markdown mirror of the HTML page
---

# TRIUMPH-5

TRIUMPH-5 is a phase 3 trial of retatrutide against tirzepatide in adults who have obesity, registered as NCT06662383 and not yet reported (ClinicalTrials.gov, checked 23 September 2026).

Primara Labs sells some of the compounds covered here. Every figure on this page links to its source and the date it was checked.

Updated 24 September 2026

Retatrutide Explained: Triple Agonist Research (Philippines Guide)1:50·[Transcript and chapters](https://www.primaralabs.com/videos/retatrutide)

Design

## Trial design and sources

Compound

Retatrutide

Phase

3

Population

Adults who have obesity

Participants randomised

Not published

Duration

Not published

Primary endpoint

Compared with tirzepatide

Estimand

Not stated in the source read

Read out

Not yet reported

-   ClinicalTrials.gov record, active, not recruiting [open](https://clinicaltrials.gov/study/NCT06662383) · checked 23 September 2026
-   Registry: NCT06662383

Questions

## TRIUMPH-5, answered

### What did TRIUMPH-5 find?

TRIUMPH-5 is a phase 3 trial of retatrutide against tirzepatide in adults who have obesity, registered as NCT06662383 and not yet reported (ClinicalTrials.gov, checked 23 September 2026).

### When will TRIUMPH-5 report?

TRIUMPH-5 is active and not recruiting on ClinicalTrials.gov (NCT06662383); no results have been published. Checked 23 September 2026.

Related

## More on retatrutide

-   [TRIUMPH-1](https://www.primaralabs.com/research/trials/triumph-1)
-   [TRIUMPH-2](https://www.primaralabs.com/research/trials/triumph-2)
-   [TRIUMPH-3](https://www.primaralabs.com/research/trials/triumph-3)
-   [TRIUMPH-4](https://www.primaralabs.com/research/trials/triumph-4)
-   [Retatrutide phase 2 (Jastreboff)](https://www.primaralabs.com/research/trials/retatrutide-phase-2)
-   [TRIUMPH-6](https://www.primaralabs.com/research/trials/triumph-6)
-   [TRIUMPH-7](https://www.primaralabs.com/research/trials/triumph-7)
-   [TRIUMPH-8](https://www.primaralabs.com/research/trials/triumph-8)
-   [TRIUMPH-9](https://www.primaralabs.com/research/trials/triumph-9)
-   [TRIUMPH-OUTCOMES](https://www.primaralabs.com/research/trials/triumph-outcomes)
-   [Evidence Map: Retatrutide](https://www.primaralabs.com/research/evidence#retatrutide)
-   [Retatrutide 20mg](https://www.primaralabs.com/marketplace/retatrutide)