PREDICTING RESPONSE TO A HER INHIBITOR
The present application describes the use of low HER3 as a selection criterion for treating patients with a HER inhibitor, such as pertuzumab. It also describes the use of high HER2:HER3 ratio as a selection criterion for treating cancer patients, such as ovarian cancer patients, with a HER inhibitor, such as pertuzumab. In addition, the application describes the use of high HER3 as a selection criterion for treating cancer patients with a chemotherapeutic agent, for instance gemcitabine.
1 . A method for advertising a HER dimerization inhibitor or a pharmaceutically acceptable composition thereof comprising promoting, to a target audience, the use of the HER dimerization inhibitor or pharmaceutical composition thereof for treating a patient population with a type of cancer, where the patient's cancer expresses HER3 at a level less than the median level for HER3 expression in the cancer type.
2 . A method for advertising a HER inhibitor or a pharmaceutically acceptable composition thereof comprising promoting, to a target audience, the use of the HER inhibitor or pharmaceutical composition thereof for treating a patient population with a type of cancer, where the patient's cancer expresses HER2:HER3 at a level which is greater than the 25 th percentile for HER2:HER3 expression in the cancer type.