HER-2 BINDING ANTAGONISTS

摘要

There is disclosed a pharmaceutical composition for treating solid tumors th at overexpress HER-2, comprising an agent selected from the group consisting of (a) an isolated polypeptide having from about 50 to 79 amino acids taken fro m the sequence of SEQ ID NO. 1 or SEQ ID NO:12, wherein the polypeptide binds to the extracellular domain ECD of HER-2 at an affinity of at least 108, (b) an isolated and glycosylated polypeptide having from about 300 to 419 amino aci ds taken from the sequence of SEQ ID NO:2 or SEQ ID NO:13, wherein the C termin al 79 amino acids are present, and wherein at least three N-linked glycosylatio n sites are present, (c) a monoclonal antibody that binds to the ECD of HER-2, and (d) combinations thereof, with the proviso that the agent cannot be the monoclonal antibody alone, and pharmaceutically acceptable carrier. Also disclosed are prognostic and diagnostic assays.