SAN DIEGO--(BUSINESS WIRE)--Sequenom, Inc. (NASDAQ:SQNM) today announced the approval of a protocol by the Institutional Review Board (IRB) at San Diego-based Sharp HealthCare, clearing the way to commence patient enrollment in a screening study to clinically assess the Company’s noninvasive cell free fetal nucleic acid SEQureDx™ Technology for the detection of fetal aneuploidy, including Down syndrome, using a laboratory developed test (LDT).