ARCA biopharma Announces Planned Expansion of Gencaro Development to Atrial Fibrillation

ARCA biopharma, Inc. (Nasdaq: ABIO), a biopharmaceutical company developing genetically-targeted therapies for cardiovascular diseases, today announced that it is planning to expand the development of Gencaro, its lead cardiovascular drug candidate, to atrial fibrillation, a disease that affects more than 2.4 million patients in the United States. Subject to obtaining additional funding, the Company anticipates initiating patient enrollment of a Phase 3 clinical trial in the first half of 2012 to evaluate Gencaro in patients who have symptomatic atrial fibrillation and heart failure with reduced left ventricular ejection fraction (HFREF).