Spironolactone fails to improve CV outcomes in patients with stage 3b chronic kidney disease: Study

Across 3 years of follow-up, the primary endpoint occurred in 113 of 677 participants randomized to spironolactone (16.7%) and 111 of 695 participants randomized to usual care (16.0%) with no significant difference between groups (hazard ratio = 1.05, 95% confidence interval: 0.81–1.37). Two-thirds of participants randomized to spironolactone stopped treatment within 6 months, predominantly because they met prespecified safety stop criteria. The most common reason for stopping spironolactone was a decrease in the estimated glomerular filtration rate that met prespecified stop criteria (n = 239, 35.4%), followed by participants being withdrawn due to treatment side effects (n = 128, 18.9%) and hyperkalemia (n = 54, 8.0%). In conclusion, we found that spironolactone was frequently discontinued due to safety concerns, with no evidence that it reduced cardiovascular outcomes in people with stage 3b CKD. Spironolactone should not be used for people with stage 3b CKD without another explicit treatment indication.

Reference:

Hobbs, F.D.R., McManus, R.J., Taylor, C.J. et al. Low-dose spironolactone and cardiovascular outcomes in moderate stage chronic kidney disease: a randomized controlled trial. Nat Med (2024). https://doi.org/10.1038/s41591-024-03263-5