HypertensionRandomised controlled trial

Lorundrostat in Participants With Uncontrolled Hypertension and Treatment-Resistant Hypertension

JAMAPublished

  • Randomised controlled trial
  • phase 3
  • 159 sites, 13 countries

Enrolled November 2023 to September 2024; last follow-up January 24, 2025

Authors' conclusion

The efficacy and safety of lorundrostat, an aldosterone synthase inhibitor, was demonstrated for lowering BP in adults with uncontrolled hypertension, including those with treatment-resistant hypertension.

Study context

Population
Adults with uncontrolled hypertension, including treatment-resistant hypertension, on 2 to 5 antihypertensive medications
Participants
1,083 adults
Comparison
Lorundrostat vs placebo added to 2–5 antihypertensive medications
  • Lorundrostat 50→100 mgn = 270
  • Lorundrostat 50 mgn = 541
  • Placebon = 272reference
Primary endpoint
Change in automated office SBP, lorundrostat 50 mg vs placebo
Follow-up
Week 6

Primary result

Change in automated office SBP

Least-squares mean difference

−9.1 mm Hg

95% CI −13.3 to −4.9

P < 0.001

By group

Pooled lorundrostat 50 mg

−16.9

least-squares mean change · 95% CI −19.0–-14.9 · mm Hg

Placebo

−7.9

least-squares mean change · 95% CI −11.5–-4.2 · mm Hg

Pooled lorundrostat 50 mg vs Placebo
least-squares mean difference −9.1 mm Hg (95% CI −13.3 to −4.9); P < 0.001

As reported in the abstract

Safety

OutcomeLorundrostat 50→100 mgLorundrostat 50 mgPlacebo
Treatment discontinuation due to hyperkalemia / hyponatremia / reduced kidney function
Hyperkalemia1 (0.37%)2 (0.37%)Not reported in the abstract
Hyponatremia1 (0.37%)2 (0.37%)Not reported in the abstract
Reduced kidney function03 (0.56%)Not reported in the abstract

Hyponatremia, hyperkalemia, reduced kidney function

Reported more often with lorundrostat vs placebo

Treatment-emergent adverse events

TEAEs in all participants, mostly mild or moderate
49.9% (538/1078)

Original publication

Lorundrostat in Participants With Uncontrolled Hypertension and Treatment-Resistant Hypertension. JAMA. Published 5 August 2025. doi:10.1001/jama.2025.9413

Summarised from the published abstract; every number is checked against it