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Selective aldosterone synthase inhibitors reduce systolic blood pressure by 7.9 mmHg in patients with CKDAldosterone Synthase Inhibitors May Lower Blood Pressure in CKD Patients

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Key Takeaway
Consider selective aldosterone synthase inhibitors for blood pressure and albuminuria reduction in patients with CKD.

This meta-analysis evaluated the efficacy of selective aldosterone synthase inhibitors (ASIs) in patients with chronic kidney disease (CKD) and uncontrolled hypertension. The analysis included 1148 patients and compared ASIs against placebo to assess blood pressure, albuminuria, and renal function.

Key findings indicate that ASIs led to a reduction in systolic blood pressure (SBP) of 7.9 mmHg (95% CI -10.0 to -5.9) and a reduction in diastolic blood pressure (DBP) of 3.1 mmHg (95% CI -5.9 to -0.2). Additionally, the study reported a 31.7% reduction in UACR (95% CI -54.5 to -8.9) and a reduction in eGFR of 2.05 ml/min/1.73 m2 (95% CI -3.15 to -0.95).

A primary limitation noted by the authors is the high heterogeneity in the risk of hyperkalemia. While ASIs represent a potential treatment option for blood pressure control and albuminuria reduction in patients with CKD, the safety profile regarding hyperkalemia remains uncertain due to inconsistent data across studies. Clinical application should be weighed against these specific safety uncertainties.

How this fits prior evidence

This meta-analysis addresses a gap in the management of hypertension in patients with CKD. While previous evidence noted that URS and RIRS are unlikely to worsen eGFR in CKD patients, this study provides new data on the impact of ASIs on both blood pressure and eGFR in the same CKD population. The findings specifically address the need for effective blood pressure and albuminuria reduction in patients with renal impairment.

Researchers looked at how a group of medications called selective aldosterone synthase inhibitors (ASIs) affect people with chronic kidney disease (CKD) and uncontrolled high blood pressure. This analysis included data from 1,148 patients to see how these drugs performed compared to a placebo.

The findings showed that these medications were associated with a decrease in both systolic and diastolic blood pressure. Additionally, the study found a reduction in albuminuria, which is a sign of kidney damage. There was also a small decrease in the estimated glomerular filtration rate (eGFR) during the study period.

One important safety note is the risk of hyperkalemia, which is a high level of potassium in the blood. Because the data on this specific risk was inconsistent across different studies, it is hard to say exactly how common it is. While these drugs show promise for managing blood pressure and kidney health, they are still being evaluated for their role in standard care.

What this means for you:
Aldosterone synthase inhibitors may lower blood pressure and kidney damage markers in patients with CKD.

Common questions

What did the study find about blood pressure?

The study found that patients taking selective aldosterone synthase inhibitors saw a reduction in systolic blood pressure by 7.9 mmHg and a reduction in diastolic blood pressure by 3.1 mmHg compared to a placebo. These results suggest the medication may help manage high blood pressure in people with chronic kidney disease.

How do these medications affect kidney damage?

The study showed a 31.7% reduction in UACR, which is a measure of protein in the urine. Lowering this level is important because high levels of protein can indicate kidney damage. This suggests the medication might help protect kidney function in patients with hypertension.

Are there any safety concerns with these drugs?

One potential side effect noted in the study is hyperkalemia, which is a high level of potassium in the blood. However, the researchers noted that the data regarding this specific risk was inconsistent across the different studies included in the analysis.

Study Details

Study typeMeta analysis
Sample sizen = 1,148
EvidenceLevel 1
PublishedOct 2026
View Original Abstract ↓
Aldosterone synthase inhibitors (ASIs) demonstrated significant blood pressure (BP) lowering efficacy in patients with uncontrolled hypertension, but evidence in chronic kidney disease (CKD) remains limited. This meta-analysis explores the effects of selective ASIs on BP levels in CKD. Secondary outcomes were albuminuria (UACR), eGFR change and hyperkalemia incidence. Five RCTs (1,148 patients) were included; 2 used baxdrostat, 2 lorundrostat, and 1 study used vicadrostat. Treatment with ASIs was associated with a significant placebo-adjusted reduction in SBP of-7.9 mmHg [95% confidence interval (CI) -10.0 to -5.9, I2  = 0%] and DBP of -3.1 mmHg (95% CI -5.9 to -0.2, I2  = 62%) and reduced UACR by -31.7% (95% CI -54.5 to -8.9, I2  = 91%). The pooled placebo-adjusted eGFR change was -2.05 ml/min/1.73 m 2 (95% CI -3.15 to -0.95, I2  = 0%). The risk of hyperkalemia was higher with ASIs, but with high heterogeneity (risk ratio, 4.04 [95% CI 0.94 to 17.35], I2  = 76%). In conclusion, selective ASIs present a potential treatment option for BP control and albuminuria reduction in patients with CKD.
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