A Study to Assess Efficacy and Safety of Baxdrostat in Participants With Primary Aldosteronism

Recruiting now · Phase 3 · Has a placebo group

Conditions studied: Primary Hyperaldosteronism

In brief

This is a Phase III, multicentre, randomised, double-blind, placebo-controlled, parallel-group study to evaluate the safety, tolerability, and efficacy of baxdrostat versus placebo, on the reduction of Seated Blood Pressure (SBP) and achieving normalization of the Renin Angiotensin Aldosterone System (RAAS) in approximately 250 participants ≥ 18 years of age with Primary Aldosteronism (PA), with or without prior treatment with Mineralocorticoid Receptor Antagonists (MRAs) or potassium-sparing diuretics. Baxdrostat (or placebo) will be administered once daily, up-titrated after 2 weeks based on clinical response and tolerability. The study is planned to be conducted globally in approximately 90 study centres and 12 countries.

Key facts

Study ID

NCT07007793

Run by

AstraZeneca

People needed

250

Starts

2025-08-07

Expected to finish

2028-08-14

Last updated by the study team

2026-07-06

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Male or female participants must be ≥ 18 years of age
• Participants with a documented diagnosis of PA that fulfils the criteria defined in the 2016 or 2025 Endocrine Society Guidelines.
• Participants willing and able to cease dosing of MRA or potassium sparing diuretics per study requirement for participants taking an MRA or potassium sparing diuretic at Screening.
• eGFR ≥ 45 mL/min/1.73m2 at Screening
• Serum potassium level ≥ 3.0 and < 5.0 mmol/L at Screening determined as per the central laboratory.
• Have a stable regimen of antihypertensive medications for at least 4 weeks prior to randomisation
• Mean seated SBP on AOBPM of ≥ 135 mmHg and ≤ 170 mmHg and mean DBP of
• ≤ 105 mmHg.
• Serum potassium (local lab) > 3.0 mmol/L at randomization.

You may not qualify if…

• If not taking an MRA or potassium sparing diuretic at Screening: Mean seated SBP > 170 mmHg or mean seated DBP >105 mmHg (on AOBPM).
• If taking an MRA or potassium sparing diuretic at Screening: Mean seated SBP > 160 mmHg or mean seated DBP ≥ 100 mmHg.
• Previous surgical intervention for an adrenal adenoma or have a planned adrenalectomy, renal nerve denervation, or adrenal ablative procedure during the course of the study.
• Has the following known secondary causes of HTN: renal artery stenosis, uncontrolled or untreated hyperthyroidism, uncontrolled or untreated hypothyroidism, pheochromocytoma, Cushing's syndrome, aortic coarctation.
• Serum sodium level < 135 mmol/L at Screening, determined as per central laboratory.
• New York Heart Association functional HF class IV at Screening.
• Persistent atrial fibrillation.
• Treatment with any MRA or potassium-sparing diuretic within 2 weeks prior to Randomisation.

Where it is running

• Research Site — Würzburg, Germany (enrolling)
• Research Site — Kaiserslautern, Germany (enrolling)
• Research Site — Berlin, Germany (enrolling)
• Research Site — Reinfeld (Holstein), Germany (enrolling)
• Research Site — Calgary, Alberta, Canada (enrolling)
• Research Site — Brisbane, Australia (enrolling)
• Research Site — Toronto, Ontario, Canada (enrolling)
• Research Site — Xianyang, China (enrolling)
• Research Site — München, Germany (enrolling)
• Research Site — Olive Branch, Mississippi, United States (enrolling)
• Research Site — Madrid, Spain (enrolling)
• Research Site — Seville, Spain (enrolling)
• Research Site — Perth, Australia (enrolling)
• Research Site — Clayton, Australia (enrolling)
• Research Site — Chicago, Illinois, United States (enrolling)
• Research Site — Ottawa, Ontario, Canada (enrolling)
• Research Site — Montreal, Quebec, Canada (enrolling)
• Research Site — Columbia, South Carolina, United States (enrolling)
• Research Site — Düsseldorf, Germany (enrolling)
• Research Site — Columbus, Ohio, United States
• Research Site — Cleveland, Ohio, United States
• Research Site — Boston, Massachusetts, United States
• Research Site — New York, New York, United States
• Research Site — Kansas City, Missouri, United States
• Research Site — Baltimore, Maryland, United States

Full record on ClinicalTrials.gov

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