Targeted therapies are used in patients with a set gene expression pattern. A targeted therapy that prevents the activation of the estrogen receptor in breast cancer would be beneficial to which type of patient?

• Patients who express the EGFR receptor in normal cells
• Patients that have no estrogen receptor expressed in their tumor
• Patients with a mutation that inactivates the estrogen receptor
• Patients with lots of the estrogen receptor expressed in their tumor Correct