Randomized Trialhigh evidence

Memantine for Premature Atrial Contractions: A Phase 2 Randomized Clinical Trial.

Circulation·April 21, 2026·PMID 41853846

Why it matters

PACs are linked to atrial fibrillation, stroke, and heart failure, yet no approved therapy exists. This trial provides proof-of-concept for a non-ion channel approach targeting the cardiac glutamatergic system, potentially opening a new therapeutic class for atrial ectopy.

Infographic summary of Memantine for Premature Atrial Contractions: A Phase 2 Randomized Clinical Trial.
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