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Published on: June 6, 2025
In advanced CKD with poorly controlled hypertension, chlorthalidone reduced BP at 12 wk
1Johns Hopkins University, Baltimore, Maryland, USA (D.C.C.).
Insights
Chlorthalidone effectively lowers blood pressure in patients with advanced chronic kidney disease. This finding is crucial for managing hypertension in this high-risk population.
Area of Science:
- Nephrology
- Cardiology
- Pharmacology
Background:
- Hypertension is a common and serious complication in patients with advanced chronic kidney disease (CKD).
- Thiazide-type diuretics are recommended for hypertension but their efficacy in advanced CKD is uncertain.
- Chlorthalidone is a potent thiazide-type diuretic.
Purpose of the Study:
- To evaluate the efficacy and safety of chlorthalidone for hypertension management in patients with advanced chronic kidney disease.
Main Methods:
- A randomized, double-blind, placebo-controlled trial was conducted.
- Participants with advanced CKD (estimated glomerular filtration rate <30 mL/min/1.73 m²) and hypertension were enrolled.
- Patients received either chlorthalidone or a placebo, with dose adjustments to achieve target blood pressure.
Main Results:
- Chlorthalidone significantly reduced systolic blood pressure compared to placebo.
- The reduction in blood pressure was consistent across different levels of kidney function.
- Adverse events were similar between the chlorthalidone and placebo groups.
Conclusions:
- Chlorthalidone is an effective and safe option for treating hypertension in patients with advanced chronic kidney disease.
- This study supports the use of chlorthalidone in this population, potentially improving cardiovascular outcomes.
Source Citation:
Agarwal R, Sinha AD, Cramer AE, et al. Chlorthalidone for hypertension in advanced chronic kidney disease. N Engl J Med. 2021;385:2507-19. 34739197.
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