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AstraZeneca’s Baxdrostat Lowers 24-Hour Systolic BP by 14 mmHg in Phase 3, AHA Presentation Confirms

The findings position the aldosterone-targeting oral therapy for regulatory submissions.

Overview

  • Bax24 met its primary endpoint with a statistically significant, placebo-adjusted 14.0 mmHg reduction in ambulatory 24-hour average systolic blood pressure at 12 weeks.
  • Seventy-one percent of patients on baxdrostat achieved an ambulatory 24-hour systolic blood pressure below 130 mmHg versus 17% on placebo.
  • Key secondary endpoints improved significantly, including night-time ambulatory systolic blood pressure and seated systolic blood pressure.
  • Efficacy was sustained across the full 24 hours, including the higher-risk early morning period.
  • Baxdrostat was generally well tolerated with a safety profile consistent with earlier BaxHTN data, and full Bax24 results were presented at the AHA Scientific Sessions 2025.