Regado Biosciences, Inc., a privately held company leading the development of antithrombotic therapeutic aptamers with active control agents, today announced the completion of a $40 million Series D financing. The round, led by new investor Edmond de Rothschild Investment Partners, part of The Edmond de Rothschild Rothschild Group, was joined by existing investors Domain Associates, Quaker Bioventures, Aurora Funds, Caxton Advantage Life Sciences Fund and other individual investors.