Independent · non-commercial · publishes on a quarterly cycle|Current cycle 2026 Q3
Compound Evidence InstituteEvidence synthesis · established 2023Graded assessments of compounds, trials, methods and supply
Document set current to 30 July 2026
Public comment period · Compound monograph

Draft monograph: retatrutide

Consultation on the draft monograph for retatrutide, a triple agonist at the glucagon-like peptide-1, glucose-dependent insulinotropic polypeptide and glucagon receptors. The principal assessed outcome is graded at low certainty because the contributing…

Document identifier
CEI-CP-034
Series
Public comment period
Version
1.0
Published
25 Mar 2026
Last reviewed
25 Mar 2026
Next review
25 Mar 2027
Identifier
10.71829/cei.cp.34
Certainty
Not rated
Cycle
2026 Q1
Window
27 Jan 2026 – 10 Mar 2026
Status
Closed
Submissions
14

§1Consultation and window

§1.1Window

Opened
27 January 2026
Closed
10 March 2026
Duration
42 days
Status
Closed — the disposition is published
Document under consultation
Monograph: Retatrutide
Submissions received
14

§1.2Consultation questions

The secretariat put the following questions. A submission was not required to address them and several did not; the questions record what the Institute was uncertain about rather than restricting what a respondent could raise.

  1. Is the low certainty rating correctly drawn from phase 2 evidence, and is the ongoing phase 3 programme recorded as an evidence gap rather than as supporting evidence?
  2. Is the mechanistic description of triple agonism proportionate, given that a receptor-occupancy account is not a clinical outcome?
  3. Does the analytical section give a reader enough to interpret a certificate for a compound with no reference standard in general circulation?

§1.3How a submission is handled

  • Every submission is signed. The Institute publishes no anonymous submission.
  • Every submission carries a declared interest. A declaration of no interest is itself a declaration and is recorded as one. A declaration is not a disqualification and the Institute has never given a submission less weight on that ground.
  • A submission from an employee of a marketing-authorisation holder is identified as an industry submission on its face, following a unanimous consultation on the conflicts policy.
  • Every submission receives a secretariat response and a disposition. Submissions that are not accepted remain published in full; the Institute does not remove a submission because it disagrees with it.
  • There is no voting, no reputation score, no reply thread and no editing after receipt.

§1.4Outcome

The monograph was amended before ratification. The ongoing phase 3 programme is recorded as an evidence gap with its registered outcome measures listed, and the mechanistic section was shortened and given a statement that receptor pharmacology does not predict clinical effect size.

The disposition table, listing each submission with its disposition and the resulting amendment, is at §3.

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