Nephroprotective effects of GLP-1 receptor agonists in patients receiving lithium treatment: a multinational cohort study using the TriNetX network
5 affiliations
- 1Department of Psychiatry, University of Toronto, Canada
- 2Department of Psychiatry and Behavioral Sciences, SUNY Upstate Medical University Norton College of Medicine, USA
- 3Department of Psychiatry, Icahn School of Medicine at Mount Sinai, USA
- 4Brain and Cognition Discovery Foundation, Canada
- 5University of Toronto, Canada
Abstract
Background: Use of GLP-1 receptor agonists (GLP-1 RAs) is an established therapy that delays progression of chronic kidney disease in type 2 diabetes mellitus (T2DM), but their impact on lithium-associated nephrotoxicity is unclear. We evaluated whether GLP-1 RA use is associated with reduced renal risk in adults receiving long-term lithium therapy.
Methods: We conducted a retrospective, propensity score-matched cohort study using TriNetX electronic health records (>127 million patients across 109 healthcare organizations). Adults (≥18 years) with T2DM and lithium exposure within 2 years prior to index were included. The primary outcome was renal nephrotoxicity, defined as a composite of ICD-10 and CPT-coded renal disease. Incidence and time-to-event outcomes were assessed using Kaplan–Meier curves and Cox proportional hazards models.
Results: In a 24-month analysis of 452 matched patient pairs, GLP-1 RA initiation during lithium therapy was associated with a marked reduction in renal events versus lithium alone (23.5% vs 44.7%), corresponding to a risk difference of −21.2% (95% CI -36.9 to −5.5) and a risk ratio of 0.53 (95% CI 0.30–0.91; p = 0.013). Event-free survival was higher (62.5% vs 43.4%; log-rank p = 0.0115), with a hazard ratio of 0.45 (95% CI 0.23–0.85; p = 0.0089). This represents a 47% relative risk reduction and a number needed to treat (NNT) of 5 over 24 months.
Conclusion: These findings support further mechanistic and prospective studies of GLP-1 RAs as a renoprotective strategy for patients receiving lithium treatment.
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BibTeX
@article{mcintyre2026nephroprotective,
title = {{Nephroprotective effects of GLP-1 receptor agonists in patients receiving lithium treatment: a multinational cohort study using the TriNetX network}},
author = {Roger S. McIntyre and Yanli Zhang-James and Joseph F. Goldberg and Angela T.H. Kwan},
journal = {CNS Spectrums},
year = {2026},
month = jun,
doi = {10.1017/s1092852926101023},
url = {https://doi.org/10.1017/s1092852926101023},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Nephroprotective effects of GLP-1 receptor agonists in patients receiving lithium treatment: a multinational cohort study using the TriNetX network
AU - Roger S. McIntyre
AU - Yanli Zhang-James
AU - Joseph F. Goldberg
AU - Angela T.H. Kwan
PY - 2026
DA - 2026/06/09
JO - CNS Spectrums
DO - 10.1017/s1092852926101023
UR - https://doi.org/10.1017/s1092852926101023
AB - Background: Use of GLP-1 receptor agonists (GLP-1 RAs) is an established therapy that delays progression of chronic kidney disease in type 2 diabetes mellitus (T2DM), but their impact on lithium-associated nephrotoxicity is unclear. We evaluated whether GLP-1 RA use is associated with reduced renal risk in adults receiving long-term lithium therapy. Methods: We conducted a retrospective, propensity score-matched cohort study using TriNetX electronic health records (>127 million patients across 109 healthcare organizations). Adults (≥18 years) with T2DM and lithium exposure within 2 years prior to index were included. The primary outcome was renal nephrotoxicity, defined as a composite of ICD-10 and CPT-coded renal disease. Incidence and time-to-event outcomes were assessed using Kaplan–Meier curves and Cox proportional hazards models. Results: In a 24-month analysis of 452 matched patient pairs, GLP-1 RA initiation during lithium therapy was associated with a marked reduction in renal events versus lithium alone (23.5% vs 44.7%), corresponding to a risk difference of −21.2% (95% CI -36.9 to −5.5) and a risk ratio of 0.53 (95% CI 0.30–0.91; p = 0.013). Event-free survival was higher (62.5% vs 43.4%; log-rank p = 0.0115), with a hazard ratio of 0.45 (95% CI 0.23–0.85; p = 0.0089). This represents a 47% relative risk reduction and a number needed to treat (NNT) of 5 over 24 months. Conclusion: These findings support further mechanistic and prospective studies of GLP-1 RAs as a renoprotective strategy for patients receiving lithium treatment.
SN - 1092-8529
SN - 2165-6509
ER -