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Olmesartan medoxomil +Azelnidipine

Jichi Medical University · FDA-approved active Small molecule

This combination lowers blood pressure by blocking angiotensin II receptors (olmesartan medoxomil) and inhibiting L-type calcium channels (azelnidipine).

Olmesartan medoxomil/azelnidipine is a fixed-dose combination antihypertensive marketed in Japan by Jichi Medical University, combining an angiotensin II receptor blocker (ARB) with a calcium channel blocker (CCB). The combination leverages complementary mechanisms: olmesartan blocks AT1 receptors to reduce vasoconstriction and aldosterone secretion, while azelnidipine inhibits L-type calcium channels to promote vasodilation, providing synergistic blood pressure reduction. Approved for hypertension management, the drug has been evaluated in three Phase 4 outcome trials (COLM, OSCAR, and Japan-Combined Treatment studies) enrolling over 6,300 patients, demonstrating cardiovascular benefits in high-risk elderly populations and superiority or non-inferiority versus alternative combination strategies. The fixed-dose combination addresses polypharmacy burden in hypertension management and competes with other ARB/CCB combinations like candesartan/amlodipine. Commercial data specific to this combination is limited; the product is primarily marketed in Japan with no FDA approval. The formulation represents a rational combination approach supported by comparative efficacy data published in peer-reviewed literature.

At a glance

Generic nameOlmesartan medoxomil +Azelnidipine
Also known asarm A
SponsorJichi Medical University
Drug classAntihypertensive combination (ARB + calcium channel blocker)
TargetAngiotensin II type 1 receptor (AT1R) and L-type voltage-gated calcium channels
ModalitySmall molecule
Therapeutic areaCardiovascular
PhaseFDA-approved

Mechanism of action

Olmesartan medoxomil is an angiotensin II receptor blocker (ARB) that prevents vasoconstriction and reduces aldosterone secretion. Azelnidipine is a dihydropyridine calcium channel blocker that causes vasodilation by blocking calcium influx into vascular smooth muscle cells. Together, they provide complementary antihypertensive effects through different mechanisms.

Approved indications

Common side effects

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