Through an in-license agreement with the University of Virginia Patent Foundation, ATL was granted exclusive, worldwide rights to the University's adenosine-related patent portfolio, including apadenoson, developed as Stedivaze, a cardiac stress agent for use in diagnosis of coronary artery disease. Stedivaze was shepherded by ATL to the end of Phase II development before ATL sold substantially all its assets to Clinical Data, Inc. (CLDA) in 2008. CLDA and its successors carried on development into late Phase III. Acquired by Clinical Data in 2008; operating status currently unknown.