Circulating tumor cells (CTCs) and molecular subtypes (MST) in a treatment algorithm for metastatic breast cancer (MBC).

e21022 Background: We measured CTC s and MST of MBC [ER+, HER2- (HR+); HER2+ (H2+); or Triple Negative (TN)] in all MBC pts in our practice and used these in an algorithm to treat MBC. Methods: CTC...