Retatrutide in type 2 diabetes mellitus — evidence extract
The Institute's graded assessment of Retatrutide for type 2 diabetes mellitus, with the contributing trials and the domain-by-domain certainty reasoning.
§1Evidence extract: Type 2 diabetes mellitus
§1.1Question and anchor outcome
- Population
- A disorder of glucose regulation characterised by insulin resistance with relative insulin deficiency, diagnosed by glycated haemoglobin, fasting plasma glucose or oral glucose tolerance criteria.
- Intervention
- Retatrutide, subcutaneous once weekly
- Comparator
- As used in each contributing trial; reported per trial rather than pooled across comparator types
- Anchor outcome
- Change in HbA1c (%, mmol/mol)
Additional outcomes the Institute extracts for this indication: Proportion achieving HbA1c <7.0 % and ≤6.5 %; Change in fasting serum glucose; Change in body weight; Documented symptomatic hypoglycaemia.
§1.2Contributing trials
Table 1. Trials contributing to the assessment of Retatrutide in type 2 diabetes mellitus.
| Trial | Phase | Design | Randomised | Duration | Year |
|---|---|---|---|---|---|
| TRIUMPH-2 | 3 | Randomised, double-blind, placebo-controlled | — | 68 weeks or longer | — |
| RETA-PH2-T2D | 2 | Randomised, double-blind, placebo-controlled | 281 | 36 weeks | 2023 |
§1.3Certainty assessment
Table 2. Reasoning recorded against each certainty domain.
| Domain | Rating | Reasoning |
|---|---|---|
| Risk of bias | Serious | Contributing trials are sponsor-conducted and one is open-label. |
| Inconsistency | No concern | No serious concern identified in this domain. |
| Indirectness | No concern | No serious concern identified in this domain. |
| Imprecision | No concern | No serious concern identified in this domain. |
| Publication bias | No concern | No serious concern identified in this domain. |
| Overall rating: Moderate certainty. The true effect is likely to be close to the estimate, but there is a possibility that it is substantially different. Further research is likely to have an important impact on confidence in the estimate. | ||
§1.4What this extract does not establish
References cited on this page
References are numbered in order of first citation in this document. Each superscript in the text links to its entry below.
- Jastreboff AM, Kaplan LM, Frías JP, Wu Q, Du Y, Gurbuz S, Coskun T, Haupt A, Milicevic Z, Hartman ML. Triple-hormone-receptor agonist retatrutide for obesity — a phase 2 trial. New England Journal of Medicine 2023;389(6):514–526. doi:10.1056/NEJMoa2301972 · PMID 37366315
- Rosenstock J, Frias J, Jastreboff AM, Du Y, Lou J, Gurbuz S, Thomas MK, Hartman ML, Haupt A, Milicevic Z, Coskun T. Retatrutide, a GIP, GLP-1 and glucagon receptor agonist, for people with type 2 diabetes: a randomised, double-blind, placebo- and active-controlled, parallel-group, phase 2 trial. The Lancet 2023;402(10401):529–544. doi:10.1016/S0140-6736(23)01053-X · PMID 37385280
- Coskun T, Sloop KW, Loghin C, Alsina-Fernandez J, Urva S, Bokvist KB, Cui X, Briere DA, Cabrera O, Roell WC, Kuchibhotla U, Moyers JS, Benson CT, Gimeno RE, D’Alessio DA, Haupt A. LY3298176, a novel dual GIP and GLP-1 receptor agonist for the treatment of type 2 diabetes mellitus: from discovery to clinical proof of concept. Molecular Metabolism 2018;18:3–14. doi:10.1016/j.molmet.2018.09.009 · PMID 30473097
Identifiers are reproduced only where the Institute holds them. Where a digital object identifier or PubMed identifier is not shown, the Institute has recorded the journal and year and has not constructed an identifier.