GLP-1 Receptor Agonist Initiation and Anti-VEGF Treatment Frequency in Diabetic Macular Edema: an IRIS <sup>®</sup> Registry Cohort Study
- Design
- Retrospective cohort · Unknown outcome
- Match to healthy normal-weight adults aged 55–75
- Different population[Auto] Participants had type 2 diabetes and obesity/overweight (age/BMI not reported in abstract).
- Could weight loss explain it?
- Possibly[Auto] Participants had obesity and/or type 2 diabetes and the abstract does not separate direct drug effects from weight loss or glycaemic improvement.
- Study tier
- Preliminary[Auto] Not peer reviewed (preprint, abstract or registration). Early-warning only.
- Assessment
- Version 1 · automatic, not yet reviewed by a person · Sep 13, 2026
Study facts come from the paper. Population match, weight-loss explanation and study tier are our judgments, made against the reference group of healthy normal-weight adults aged 55–75. This item has not been peer reviewed.
[Auto, unreviewed; last sentences of abstract] <h4>Précis</h4> We used the American Academy of Ophthalmology IRIS ® Registry (Intelligent Research in Sight) to identify patients with DME. In 19,792 matched patients, there was no significant reduction in injection frequency post GLP1-RA initiation and no significant change in VA or CST.
01Findings
What the study reported
- Drugs
- Class unspecified
- Primary outcome
- Not extracted
- Effect
- Not extracted
- 95% confidence interval
- Not extracted
- Follow-up
- 12 months
- Adverse events
- Not extracted
- Limitations
- Auto-classified from abstract only; effect estimates, adverse events and limitations not extracted. Requires manual review.
Who was studied
- Obesity status
- obesity/overweight present (all or most)
- Diabetes status
- type 2 diabetes present (all or most)
- Ckd status
- chronic kidney disease present in population (see abstract)
- Baseline condition
- chronic kidney disease
Study quality details
- Study design
- Retrospective cohort
- Sample size
- not extracted
- Randomization
- no
- Blinding
- not stated
- Comparator
- not stated
- Follow up duration
- 12 months
- Outcome type
- unknown
- Replication
- not assessed (auto)
- Consistency with other evidence
- not assessed (auto)
- Population applicability
- INDIRECT
- Statistical precision
- not extracted
- Risk of bias
- not assessed (auto)
- Funding conflicts
- unclear
- Peer review status
- no
02Funding
Funding and conflicts
- Funding
- not reported in abstract
- Industry funded
- Unclear
- Manufacturer
- None identified
- Sponsor role
- not reported in abstract
- Author conflicts
- not available in metadata
- Independent replication
- unknown
Funding is shown on every study and never used to score it.
04Source
The source, as retrieved
Abstract
<h4>Purpose</h4> To evaluate whether initiation of GLP-1 receptor agonists (GLP-1RAs) is associated with anti-VEGF treatment burden in type 2 diabetes patients with diabetic macular edema (DME) in the IRIS ® Registry (Intelligent Research in Sight). <h4>Methods</h4> Incident GLP-1RA initiators were matched 1:1 with controls via Mahalanobis distance matching (9,896 pairs; N=19,792) on sociodemographics, DME risk factors, and factors influencing GLP-1RA prescription including hypertension, obesity, chronic kidney disease. A longitudinal mixed-effects event-study model evaluated monthly anti-VEGF injection frequency over a 36-month window (12 months before through 24 months after initiation), adjusting for DME duration. Visual acuity (VA) and central subfield thickness (CST) were secondary outcomes. <h4>Results</h4> Following GLP-1RA initiation, anti-VEGF injection trajectories did not significantly differ between the matched GLP-1RA and control cohorts (interaction coefficients −0.18 to 1.59, P>0.05). Likewise, no differences in VA were observed between cohorts (−0.05 to 0.04 logMAR, P>0.05) or CST (−14.12 to 33.58 µm, P>0.05). <h4>Conclusion</h4> In these matched cohorts, GLP-1RA initiation was not associated with the trajectory of anti-VEGF use or changes in VA or CST. <h4>Précis</h4> We used the American Academy of Ophthalmology IRIS ® Registry (Intelligent Research in Sight) to identify patients with DME. In 19,792 matched patients, there was no significant reduction in injection frequency post GLP1-RA initiation and no significant change in VA or CST.
Where this record came from
| Source | Retrieved | Identifier |
|---|---|---|
| europepmc | Sep 13, 2026 | PPR:PPR1310218 first ingestion |
| medrxiv:medrxiv | Sep 13, 2026 | 10.64898/2026.08.29.26361426 duplicate matched on doi |