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FDA Approves Baxfendy (baxfendy) for Hypertension in Adults Not Adequately Controlled

FDA Approves Baxfendy (baxfendy) for Hypertension in Adults Not Adequately Controlled
Photo by Marek Studzinski / Unsplash
Key Takeaway
Consider assessing serum potassium and sodium before and during Baxfendy therapy due to risks of hyperkalemia and hyponatremia.

The FDA has approved Baxfendy (baxfendy), an aldosterone synthase inhibitor, for the treatment of hypertension in adults who are not adequately controlled on other antihypertensive agents. The drug is indicated for use in combination with other antihypertensives to lower blood pressure, which reduces the risk of cardiovascular events such as stroke and myocardial infarction. However, the label notes that no controlled trials have demonstrated risk reduction of these events specifically with Baxfendy. The approval was supported by a phase 3 trial (BaxHTN) that evaluated the efficacy of Baxfendy 1 mg and 2 mg once daily versus placebo in patients with systolic blood pressure ≥135 mmHg despite at least two antihypertensive medications. The primary endpoint was change from baseline to Week 12 in seated office systolic blood pressure. Clinicians should consider the risk of hyperkalemia and hyponatremia before initiating therapy.

Clinical Details (Mechanism · Dosing · Trial Data · Warnings)
Mechanism of Action

Baxfendy is an aldosterone synthase inhibitor.

Indication & Patient Population

Baxfendy, in combination with other antihypertensive drugs, is indicated for the treatment of hypertension to lower blood pressure in adults who are not adequately controlled on other agents.

Dosing & Administration

Consider the patient's risk of hyperkalemia and hyponatremia before initiating Baxfendy. Assess serum potassium and sodium before initiation and periodically thereafter. Correct abnormalities prior to initiation. The recommended dosage is 2 mg orally once daily. For patients at increased risk of hyperkalemia or hyponatremia, the recommended dosage is 1 mg once daily. Swallow tablets whole; do not cut, crush, or chew. May be taken with or without food. If a dose is missed, take the next dose at the usual time; do not double the dose.

Key Clinical Trial Data

Efficacy was evaluated in a phase 3, multicenter trial (BaxHTN, NCT06034743) in adults with systolic blood pressure ≥140 and <170 mmHg on at least 2 antihypertensives including one diuretic, with eGFR ≥45 mL/min/1.73 m2 and serum potassium 3.5 to <5.0 mEq/L. After a 2-week placebo run-in, 794 patients with systolic blood pressure ≥135 mmHg were randomized to Baxfendy 1 mg, Baxfendy 2 mg, or placebo once daily for 12 weeks. The primary endpoints were change from baseline to Week 12 in seated office systolic blood pressure for each dose versus placebo. A key secondary endpoint was change in seated office systolic blood pressure during an 8-week randomized withdrawal period (Week 24 to Week 32). Trial data not available in label for specific numerical results.

Warnings & Contraindications

Consider the risk of hyperkalemia and hyponatremia before initiating Baxfendy. Assess serum potassium and sodium before initiation and periodically thereafter. Correct abnormalities prior to initiation. Not reported in label for other warnings or contraindications.

Place in Therapy

Baxfendy is an aldosterone synthase inhibitor indicated as add-on therapy for hypertension in adults not adequately controlled on other agents. It is not a first-line agent and should be used in combination with other antihypertensives. The label emphasizes that blood pressure reduction reduces cardiovascular risk, but no trials have demonstrated such risk reduction specifically with Baxfendy.

Study Details

Study typeFda approval
PublishedMay 2026
View Original Abstract ↓
1 INDICATIONS AND USAGE BAXFENDY, in combination with other antihypertensive drugs, is indicated for the treatment of hypertension, to lower blood pressure in adults who are not adequately controlled on other agents. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions. These benefits have been seen in controlled trials of antihypertensive drugs from a wide variety of pharmacologic classes. There are no controlled trials demonstrating risk reduction of these events with BAXFENDY. Control of high blood pressure should be part of comprehensive cardiovascular risk management, including, as appropriate, lipid control, diabetes management, antithrombotic therapy, smoking cessation, exercise, and limited sodium intake. Many patients will require more than one drug to achieve blood pressure goals. For specific advice on goals and management, see published guidelines, such as those of the American College of Cardiology/American Heart Association (ACC/AHA). Numerous antihypertensive drugs, from a variety of pharmacologic classes and with different mechanisms of action, have been shown in randomized controlled trials to reduce cardiovascular morbidity and mortality, and it can be concluded that it is blood pressure reduction, and not some other pharmacologic property of the drugs, that is largely responsible for those benefits. The largest and most consistent cardiovascular outcome benefit has been a reduction in the risk of stroke, but reductions in myocardial infarction and cardiovascular mortality also have been seen regularly. Elevated systolic or diastolic pressure causes increased cardiovascular risk, and the absolute risk increase per mmHg is greater at higher blood pressures, so that even modest reductions of severe hypertension can provide substantial benefit. Relative risk reduction from blood pressure reduction is similar across populations with varying absolute risk, so the absolute benefit is greater in patients who are at higher risk independent of their hypertension (for example, patients with diabetes or hyperlipidemia), and such patients would be expected to benefit from more aggressive treatment to a lower blood pressure goal. BAXFENDY is an aldosterone synthase inhibitor indicated for the treatment of hypertension in combination with other antihypertensive drugs, to lower blood pressure in adults who are not adequately controlled on other agents. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions. (1)
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