Evidence map›Paper›PMID 32730231›Full record

ArticleJCI insight2020

Tirzepatide is an imbalanced and biased dual GIP and GLP-1 receptor agonist.

Francis S Willard, Jonathan D Douros, Maria Bn Gabe, Aaron D Showalter, David B Wainscott, Todd M Suter, Megan E Capozzi, Wijnand Jc van der Velden, Cynthia Stutsman, Guemalli R Cardona and 8 more

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 261 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
261citing papers in PubMed, 6 pooled it
36.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

261 citing papers in PubMed, 6 syntheses or guidelines pooled it, 445 citations in OpenAlex.

  1. Pooled it
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  14. Effect of GLP-1 receptor agonist on nutrient intake: A narrative review.Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2026
    Review
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  17. Glycemic and bodyweight effects ofScience advances · 2026
    Article
  18. Article
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  20. The evolving landscape of obesity pharmacotherapy.Nature reviews. Drug discovery · 2026
    Review

201 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

18 authors at 3 institutions in 2 countries.

Francis S WillardQuantitative Biology, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana, USA.
Jonathan D DourosDuke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA.
Maria Bn GabeDepartment of Biomedical Sciences and NNF Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark.
Aaron D ShowalterDiabetes and Complications, and.
David B WainscottQuantitative Biology, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana, USA.
Todd M SuterDiabetes and Complications, and.
Megan E CapozziDuke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA.
Wijnand Jc van der VeldenDepartment of Biomedical Sciences and NNF Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark.
Cynthia StutsmanDiabetes and Complications, and.
Guemalli R CardonaQuantitative Biology, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana, USA.
Shweta UrvaPK/PD & Pharmacometrics, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana, USA.
Paul J EmmersonDiabetes and Complications, and.
Jens J HolstDepartment of Biomedical Sciences and NNF Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark.
David A D'AlessioDuke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA.
Matthew P CoghlanDiabetes and Complications, and.
Mette M RosenkildeDepartment of Biomedical Sciences and NNF Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark.
Jonathan E CampbellDuke Molecular Physiology Institute, Duke University, Durham, North Carolina, USA.
Kyle W SloopDiabetes and Complications, and.
Duke University · USEli Lilly (United States) · USUniversity of Copenhagen · DK

Funding

Endocrinology and Metabolism Training ProgramT32DK007012 · NIDDK · DUKE UNIVERSITY · PI DAVID A. D'ALESSIO · 1986 to 2026
$6.8M
Mechanisms of insulin secretion mediated by alpha cellsR01DK123075 · NIDDK · DUKE UNIVERSITY · PI CAMPBELL, JONATHAN E · 2019 to 2023
$1.9M
Incretin Action in Physiology and DiabetesR01DK101991 · NIDDK · DUKE UNIVERSITY · PI D'ALESSIO, DAVID A. · 2014 to 2018
$1.8M
The Role of Islet DPP4 for Regulation of Glucose HomeostasisF32DK116542 · NIDDK · DUKE UNIVERSITY · PI CAPOZZI, MEGAN · 2018 to 2020
$188k
Assessing the Role of Glucose-Dependent Insulinotropic Polypeptide to Mediate Improved Beta-Cell Function Following Bariatric SurgeryF32DK115031 · NIDDK · DUKE UNIVERSITY · PI DOUROS, JONATHAN D. · 2017 to 2019
$137k
NIDDK NIH HHS F32 DK115031NIDDK NIH HHS F32 DK116542NIDDK NIH HHS R01 DK101991NIDDK NIH HHS R01 DK123075NIDDK NIH HHS T32 DK007012
6 · The paper itself

Abstract

Tirzepatide (LY3298176) is a dual GIP and GLP-1 receptor agonist under development for the treatment of type 2 diabetes mellitus (T2DM), obesity, and nonalcoholic steatohepatitis. Early phase trials in T2DM indicate that tirzepatide improves clinical outcomes beyond those achieved by a selective GLP-1 receptor agonist. Therefore, we hypothesized that the integrated potency and signaling properties of tirzepatide provide a unique pharmacological profile tailored for improving broad metabolic control. Here, we establish methodology for calculating occupancy of each receptor for clinically efficacious doses of the drug. This analysis reveals a greater degree of engagement of tirzepatide for the GIP receptor than the GLP-1 receptor, corroborating an imbalanced mechanism of action. Pharmacologically, signaling studies demonstrate that tirzepatide mimics the actions of native GIP at the GIP receptor but shows bias at the GLP-1 receptor to favor cAMP generation over β-arrestin recruitment, coincident with a weaker ability to drive GLP-1 receptor internalization compared with GLP-1. Experiments in primary islets reveal β-arrestin1 limits the insulin response to GLP-1, but not GIP or tirzepatide, suggesting that the biased agonism of tirzepatide enhances insulin secretion. Imbalance toward GIP receptor, combined with distinct signaling properties at the GLP-1 receptor, together may account for the promising efficacy of this investigational agent.

Indexed as

Glucagon-Like Peptide-1 Receptor AgonistsAnimalsbeta-Arrestin 1Blood GlucoseGastric Inhibitory PolypeptideHypoglycemic AgentsInsulinIslets of LangerhansMaleMiceMice, KnockoutReceptors, Gastrointestinal HormoneTirzepatideArrb1 protein, mousebeta-Arrestin 1Blood GlucoseGastric Inhibitory Polypeptidegastric inhibitory polypeptide receptorGlucagon-Like Peptide-1 Receptor AgonistsHypoglycemic AgentsInsulinReceptors, Gastrointestinal HormoneTirzepatideDiabetesTherapeutics

Identifiers

PMID32730231
PMCPMC7526454
OpenAlexW3045729180

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.