ecrin-mdr-crcClinical2015Circulating Tumor CellsNeoplastic Cells, CirculatingEpithelial-Mesenchymal TransitionCirculating Tumor CellsNeoplastic Cells, CirculatingEpithelial-mesenchymal TransitionInterventionalhttps://newmdr.ecrin.org/Study/2202184China11AspirinMetastatic breast cancerMetastatic colorectal cancerECRIN MDRNot providedfalseAspirin on CTCs of Advanced Breast and Colorectal CancerThe purpose of this study is to determine whether Aspirin could affect the number and subtype of circulating tumor cells of metastatic breast cancer and colorectal cancer.2015-11-152202184NCT02602938