GLP-1s & incretins · Metabolic & endocrine
MBX 5765
A preclinical single-peptide construct reported to combine GLP-1, GIP and glucagon receptor activity with dual amylin and calcitonin receptor activity.
- How settled this rating is:
- very-low confidence in the current evidence rating
- Routes studied:
- Subcutaneous injection
- Also known as:
- multi-receptor peptide construct
- Last reviewed:
- 2026-09-20
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Evidence passport
MBX 5765
A one-screen evidence identity for this compound. These fields describe research maturity, confidence and legal status. They are not a safety guarantee, efficacy percentage or recommendation.
- Evidence level
- L1Theory only
- Confidence
- Very low confidence in rating
- Regulatory status
- Research / unapproved supply
- Development status
- Preclinical
Evidence strength
Higher = more and better-quality human evidence. It does not mean the effect is bigger or that the compound works for you.
Higher = more mature, better-documented human safety data. It does not mean the compound is safer than one with a lower number.
The 0-100 values rate the strength and maturity of evidence, not how effective or safe the compound is.
- Evidence base
- Mostly animal and laboratory research
- Furthest established stage
- Preclinical
- Human research maturity
- Preclinical / IND-enabling; no human data
- Source curation
- Sources fully curated
Routes recorded
Most of this evidence comes from animals and cells
Overview
Higher = more and better-quality human evidence. It does not mean the effect is bigger or that the compound works for you.
Higher = more animal, tissue or cell research. Preclinical results are a starting point, not proof of a human benefit.
Higher = more mature, better-documented human safety data. It does not mean the compound is safer than one with a lower number.
How to read these scores
Every number here rates the evidence, not the compound. They are editorial 0-100 strength ratings, not percentages, and not a rating out of five stars.
- Human efficacy evidence strength — Higher = more and better-quality human evidence. It does not mean the effect is bigger or that the compound works for you.
- Preclinical evidence strength — Higher = more animal, tissue or cell research. Preclinical results are a starting point, not proof of a human benefit.
- Human safety evidence strength — Higher = more mature, better-documented human safety data. It does not mean the compound is safer than one with a lower number. A score of 80 does not mean “80% safe”.
- Evidence level (L0-L5) — the strongest type of study behind the compound, from anecdote (L0) to large replicated human trials (L5). It is a description of the study evidence, not a quality, safety or recommendation rating.
- Confidence — how likely we think it is that this rating changes as new research lands. Low confidence means the picture is unsettled, not that the compound is bad.
None of these ratings is medical advice, a safety guarantee, or a recommendation to use anything. How we grade evidence.
How far human research has progressed: Preclinical / IND-enabling; no human data
Routes & formulations
Studied / approved routes
Route availability is not evidence of efficacy, and evidence from one route does not transfer to another. The Registry never provides dosing or sourcing information.
Peptide lifecycle
Discovery
Preclinical
Furthest established stage
Phase I
Phase II
Phase III
Approved
Last documented development: 2026 — sponsor pipeline disclosure
What it is
One peptide construct designed to carry incretin and glucagon activity together with amylin and calcitonin activity. It is a single molecule rather than two drugs given together.
What people claim
- Everything in one injection
- Next-generation obesity drug
What the evidence actually says
What people claim: that combining five receptor activities in one molecule is the next leap in obesity treatment. What the evidence actually says: this is preclinical, IND-enabling work. Nothing about human weight loss, tolerability or safety is established.
Related evidence
Useful next reads based on this compound — not recommendations.
- Related compound
Tirzepatide evidence profile
A dual GIP and GLP-1 receptor agonist with strong Phase 3 weight and glycaemic data.
- Compare
Compare MBX 5765 vs Tirzepatide evidence
Same questions, same fields, side by side — including how much human evidence exists.
- Checked claim
Claim review: “Tirzepatide improves obstructive sleep apnoea in people with obesity.”
A closely related claim we have graded, from GLP-1s.
- Context
GLP-1 Centre
How the incretin medicines compare on trial evidence and where they are actually licensed.
Human evidence
- None. No human study is established in our curated record.
Preclinical evidence
- Sponsor disclosure describes a single peptide construct with GLP-1, GIP and glucagon activity plus dual amylin and calcitonin receptor activity, in preclinical / IND-enabling development.
Animal and cell findings are Level 1–2 evidence.
Mechanism and pathways
Receptor targets: GLP-1 receptor, GIP receptor, Glucagon receptor, Amylin receptor, Calcitonin receptor
Mechanism class counts the receptors the pharmacology engages and says whether one molecule or several drugs do it. More targets is not the same as more effective, and none of these labels is a receptor name — there is no GLP-3, GLP-4 or GLP-5 receptor.
- Incretin and glucagon receptor agonism target appetite, glucose handling and energy expenditure.
- Amylin and calcitonin receptor activity add a separate satiety pathway.
- More receptor activity in one molecule is a design hypothesis, not a demonstrated advantage.
Safety and unknowns
- No human safety data. Preclinical safety work has not been published in our record.
Cancer relevance
This section covers questions raised by how the compound works in the body, plus anything regulators and trial teams keep an eye on. It is not a statement that this compound causes cancer — for most compounds here, no human data exist in either direction.
No established human signal
Regulatory status
Regulatory decisions apply to specific jurisdictions, products, formulations and indications. An approval elsewhere is not automatically an approval in your country.
Check the regulatory note and linked primary sources for jurisdiction-specific details.
Preclinical and IND-enabling. Not approved, and no human trial is established in our curated record.
Evidence grade
Mechanistic rationale or early development without qualifying compound-specific outcome evidence. A registered trial is not a result.
What would change our rating?
- An IND clearance and registered first-in-human trial.
- Peer-reviewed publication of the preclinical package.
References and sources
Source transparency
A provenance snapshot of this profile. Counts show what kinds of sources are cited, not how much scientific weight each source deserves.
- Last editorial review
- 2026-09-20
- Recently reviewed · 26 days ago
- Linked curated sources
- 2
- Sources still pending
- 0
- External specialist reviews
- 0
- None recorded for this profile
Review provenance
Registry editorial review: Colin Jackson-White, creator and editor, who is not a doctor or clinician. External specialist review is credited only when a named reviewer has completed a review of this exact profile.
Current linked evidence is sponsor-only. Treat findings as provisional until independent or peer-reviewed documentation is available.
Literature-discovery and AI tools may help locate or challenge candidate evidence, but they are not counted as evidence sources here. Registry judgements are tied to the underlying papers, trial records, regulator documents and official study records.
- Sponsor / officialMBX Biosciences — pipeline disclosure (MBX 5765, preclinical)
- Sponsor / officialMBX Biosciences — second quarter 2026 financial results and corporate update (6 August 2026)
Source hierarchy: regulatory documents and trial registries first, peer-reviewed work next, sponsor material flagged as non-independent. We never use supplier or clinic marketing as evidence, and where a verified source has not yet been curated we say so rather than inventing one.
Evidence change history
These entries record changes to our assessment of the published evidence — not changes to the compound itself.
No recorded changes yet. Baseline position set on 2026-09-20.