Comparing the Efficacy and Safety of Finerenone and Spironolactone in the Treatment of Primary Aldosteronism

The participants were randomized in an equal ratio to receive finerenone 10 mg once daily. Patients received the initial dose of study drug for the first 4 weeks of randomized treatment period. Thereafter, the dose of study medication was not changed for patients with adequate BP control. For patients not meeting BP \< 140/90 mmHg at week 4, the dose of study medication was increased to finerenone 20 mg once daily. If BP \> 160/110 mmHg at the time of 8 weeks follow-up, nifedipine 30mg once day was added.

The participants were randomized in an equal ratio to receive spironolactone 20 mg twice daily. Patients received the initial dose of study drug for the first 4 weeks of randomized treatment period. Thereafter, the dose of study medication was not changed for patients with adequate BP control. For patients not meeting BP \< 140/90 mmHg at week 4, the dose of study medication was increased to spironolactone 40 mg twice daily. If BP \> 160/110 mmHg at the time of 8 weeks follow-up, nifedipine 30mg once day was added.