RESEARCH TRIANGLE PARK, N.C.--(BUSINESS WIRE)--Quintiles announced today that it has sold its minority interest in Invida, an Asia Pacific commercial solutions joint venture, to the Italy-based Menarini Group, which is acquiring Invida in its entirety. Invida was formed in 2006 by Quintiles; The Zuellig Group; and TLS Beta Pte. Ltd., an Asia investment company.