SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)--Monogram Biosciences, Inc. (Nasdaq:MGRM) today announced that additional EGFR/HER assays have been successfully tested in sets of fixed human tumors and are now available for use in drug development programs. These assays provide quantitative measurements of the HER2:HER3 heterodimer, and its associated downstream HER3:PI3K complex. An assay for p95, a truncated form of HER2, is in advanced development. These assays provide a measure of the activation state of key signaling pathways in tumors and may help predict patients’ responses to novel cancer therapeutics in development as well as potentially predict resistance to currently available drugs.