COMPARATIVE EFFECTIVENESS OF GLP-1RAs VS. MRAs AS FOURTH-LINE THERAPY FOR RESISTANT HYPERTENSION

 

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https://storage.unitedwebnetwork.com/files/1099/a8fa0517dc77e7e38591b0d658f308eb.pdf
COMPARATIVE EFFECTIVENESS OF GLP-1RAs VS. MRAs AS FOURTH-LINE THERAPY FOR RESISTANT HYPERTENSION

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Bernhard
Schmidt
Bernhard Schmidt schmidt.bernhard@mh-hannover.de Hannover Medical School Department of Nephrology and Hypertension Hannover Germany *
Zhejia Tian tian.zhejia@mh-hannover.de Hannover Medical School Department of Nephrology and Hypertension Hannover Germany -
Kai Schmidt-Ott schmidt-ott.kai@mh-hannover.de Hannover Medical School Department of Nephrology and Hypertension Hannover Germany -
Anette Melk melk.anette@mh-hannover.de Hannover Medical School Department of Pediatric Kidney, Liver and Metabolic Diseases Hannover Germany -
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Resistant hypertension accelerates hypertension-mediated organ damage and is associated with increased cardiovascular risk and mortality. Previous studies have shown that resistant hypertension is more prevalent among overweight and obese individuals. Notably, large randomized controlled trials have reported blood pressure-lowering effects of glucagon-like peptide-1 receptor agonists (GLP-1RAs), suggesting that GLP-1RAs may represents a promising therapeutic option in this population. This study aims to compare the effectiveness of GLP-1RAs (semaglutide and tirzepatide) and mineralocorticoid receptor antagonists (MRAs, spironolactone and eplerenone) in reducing major adverse cardiovascular effect (MACE) among individuals with resistant hypertension.

The comparative effectiveness study included adults with Body-Mass-Index (BMI) ≥ 27 kg/m2 and resistant hypertension identified from TriNetX database who initiated treatment between June 1, 2017, and March 31, 2025. TriNetX database contains de-identified individual-level derived from electronic medical records of participating healthcare organizations. The primary outcome was MACE, including all-cause mortality during the 2-year follow-up period. The secondary outcomes were incident cardiovascular events, all-cause mortality, and changes in systolic blood pressure and BMI. Propensity score matching was employed to construct comparable cohorts of GLP-1RA and MRA users. Analyses were conducted using targeted learning within a trial emulation framework.

12,484 participants (6242 GLP-1RAs users: mean [SD] age, 58.6 [10.7] years, 50.3% female; 6242 MRAs users: mean [SD] age, 58.6 [11.5] years, 50.5% female) were included in the analysis after propensity score matching. After a mean (SD) follow-up of 15.5 (9.3) months, 297 patients (4.6%) in the GLP-1RAs cohort and 458 patients (7.3%) in the MRAs cohort experienced MACE. Compared to MRAs treatment, GLP-1RAs treatment was associated with significant lower risk of MACE (HR 0.68, 95%CI [0.59 - 0.79]), all-cause mortality (HR 0.33, 95%CI [0.22 - 0.49]), and incident cardiovascular events (HR 0.71, 95%CI [0.54 - 0.94]). GLP-1RAs treatment was also associated with greater weight loss (BMI) (GLP1-1RAs: -1.7 kg/m2, 95%CI [-2.2 to -1.8]; MRAs: -0.6 kg/m2, 95%CI [-1.0 to -0.2]). The systolic blood pressure-lowering effect was comparable between the two cohorts (GLP1-1RAs: -3.9 mmHg, 95%CI [-5.2 to -2.6]; MRAs: -5.1 mmHg, 95%CI [-6.3 to -3.9]).

In this study, GLP-1RAs treatment was associated with a significantly lower risk of MACE, while demonstrating a comparable blood pressure-lowering effect to MRAs treatment. These findings underscore the potential benefit of integrating GLP-1RAs into the standard of care for obese patients with resistant hypertension.

Kewords