Cited by 300Diabetes Treatment and ManagementDementia and Cognitive Impairment ResearchDiabetes Management and Research

Effect of dulaglutide on cognitive impairment in type 2 diabetes: an exploratory analysis of the REWIND trial

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Cukierman-Yaffe, Tali, Gerstein, Hertzel C, Colhoun, Helen M, Diaz, Rafael, García-Pérez, Luis-Emilio, Lakshmanan, Mark, Bethel, Angelyn, Xavier, Denis +19 more·2020·The Lancet Neurology

Abstract

Background Diabetes is an independent risk factor for cognitive impairment. We aimed to investigate the association between the glucagon-like peptide-1 (GLP-1) receptor agonist dulaglutide and cognitive impairment as an exploratory analysis within the Researching Cardiovascular Events With a Weekly Incretin in Diabetes (REWIND) trial.Methods REWIND is a randomised, double-blind placebo-controlled trial at 371 sites in 24 countries. We included men and women (aged ≥50 years) with either established or newly diagnosed type 2 diabetes and additional cardiovascular risk factors, glycated haemoglobin of up to 9·5% (80 mmol/mol) on a maximum of two oral glucose-lowering drugs with or without basal insulin, and a body-mass index of at least 23 kg/m 2. Participants were randomly assigned (1:1) subcutaneous injections once a week of either dulaglutide (1·5 mg) or an equal volume of matching placebo. Randomisation was done using a computer-generated code with stratification by site. Participants and all study personnel were masked to treatment allocation until the database was locked. Participants were followed up at least every 6 months for the composite primary outcome of stroke, myocardial infarction, or death from cardiovascular or unknown causes. Cognitive function was assessed at baseline and during follow-up using the Montreal Cognitive Assessment (MoCA) and Digit Symbol Substitution Test (DSST). We present here the exploratory primary cognitive outcome, which was the first occurrence of a follow-up score on MoCA or DSST that was 1·5 SDs or more below the baseline mean score in the participant's country. All analyses were done using an intention-to-treat approach. The REWIND trial is registered with ClinicalTrials.gov, NCT01394952.Findings Between Aug 18, 2011, and Aug 14, 2013, 9901 participants were randomly assigned to either dulaglutide (n=4949) or placebo (n=4952). During median follow-up of 5·4 (IQR 5·1-5·9) years, 8828 participants provided a baseline and one or more follow-up MoCA or DSST scores, of whom 4456 were assigned dulaglutide and 4372 were assigned placebo. The cognitive outcome occurred in 4·05 per 100 patient-years in participants assigned dulaglutide and 4·35 per 100 patient-years in people assigned placebo (hazard ratio [HR] 0·93, 95% CI 0·85-1·02; p=0·11). After post-hoc adjustment for individual standardised baseline scores, the hazard of substantive cognitive impairment was reduced by 14% in those assigned dulaglutide (HR 0·86, 95% CI 0·79-0·95; p=0·0018).Interpretation Long-term treatment with dulaglutide might reduce cognitive impairment in people with type 2 diabetes. Further studies of this drug focused on brain health and cognitive function are clearly indicated.Funding Eli Lilly and Company.

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Authors
Cukierman-Yaffe, T., Gerstein, H. C., Colhoun, H. M., Diaz, R., García-Pérez, L.-E., Lakshmanan, M., Bethel, A., Xavier, D., Probstfield, J., Riddle, M. C., Rydén, L., Atisso, C. M., Hall, S., Rao-Melacini, P., Basile, J., Cushman, W. C., Franek, E., Keltai, M., Lanas, F., Leiter, L. A., Lopez-Jaramillo, P., Pirags, V., Pogosova, N., Raubenheimer, P. J., Shaw, J. E., Sheu, W. H.-H., & Temelkova-Kurktschiev, T.
Affiliations
  • Population Health Research Institute (CA)
  • University of Edinburgh (GB)
  • Eli Lilly (United States) (US)
  • St.John's Medical College Hospital (IN)
  • University of Washington (US)
  • Oregon Health & Science University (US)
  • Karolinska Institutet (SE)
  • Medical University of South Carolina (US)
  • Memphis VA Medical Center (US)
  • Central Clinical Hospital (PL)
  • Universidad de La Frontera (CL)
  • St. Michael's Hospital (CA)
  • University of Cape Town (ZA)
  • Baker Heart and Diabetes Institute (AU)
  • Taichung Veterans General Hospital (TW)
  • Bulgarian National Bank (BG)
Corresponding author
Gerstein, Hertzel C
Venue
The Lancet Neurology
Publisher
Elsevier BV
Published
2020-07
Volume
19
Issue
7
Pages
582-590
ISSN
1474-4422 (ISSN-L)
OpenAlex
W3036438870
Cited by
300
References
9
Citations by year
2026: 45 · 2025: 67 · 2024: 69 · 2023: 38 · 2022: 37 · 2021: 35 · 2020: 8
FWCI
22.25
Type
journal article
Language
en
Update notices
erratum (2020-10-01)
Open access
Locations
  • The Lancet Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Omeka S (Universidad de La Frontera) (submittedVersion, cc-by-nc-nd)
Funders
Eli Lilly and Company
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
Keywords
dulaglutide, cognitive impairment, type 2 diabetes, GLP-1 receptor agonists, REWIND trial, Montreal Cognitive Assessment, Digit Symbol Substitution Test, cognitive decline, cardiovascular outcomes
MeSH terms
Adult, Aged, Diabetes Mellitus, Type 2, Double-Blind Method, Glucagon-Like Peptides, Female, Humans, Hypoglycemic Agents, Immunoglobulin Fc Fragments, Male, Middle Aged, Recombinant Fusion Proteins, Treatment Outcome, Cognitive Dysfunction

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