#2338 Potassium-competitive acid blocker use is associated with a lower risk of renal function deterioration compared to proton pump inhibitor use
Abstract
Proton pump inhibitors (PPI) are commonly used drugs worldwide and have been linked to worsening renal function and incident chronic kidney disease. Recently, potassium-competitive acid blockers (P-CAB) have emerged as alternative gastric acid-reducing agents with a comparable effect as PPIs. However, little is known about the renal safety of P-CAB. We aimed to compare the renal outcomes of patients treated with P-CAB and those treated with PPI.
We retrospectively identified all patients who were prescribed P-CAB (tegoprazan) or PPI (esomeprazole) for 30 days or more in outpatient clinics of a tertiary care center between 2019 and 2023. Longitudinal serum creatinine data and various demographic and clinical variables were collected. Renal outcomes were defined as creatinine doubling or decline in estimated glomerular filtration rate (eGFR) of 30%. Patients with baseline eGFR < 15 mL/min/1.73 m2 and those who do not have sufficient creatinine measures to assess renal outcomes were excluded. Cox proportional hazard analyses were performed for renal outcomes with adjustment of multiple clinical covariates.
Among 8 436 patients with a mean followup of 21 months, 2 214 and 6 222 patients were treated with P-CAB and PPI, respectively, for esophageal and gastric diseases. P-CAB group showed lower rates of creatinine doubling (Log-rank P = 0.001) and decline of eGFR (Log-rank P = 0.001) compared to PPI group. P-CAB use was associated with a 0.50-fold (95% confidence interval [CI]…
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 8 participants or records.
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