18 or older
Cancer, Blood, Clot, Veins, Thrombosis, Rivaroxaban, Thinner, Heart/Cardiovascular
About 5 visits to UC Davis Cancer Center
Take drug/placebo orally once daily
Imaging, blood draws, urine collection, and questionnaires at study visits
Men and women, age 18 and older, who are have been diagnosed with cancer, and will be receiving cancer therapy. Some types of cancer not eligible for study participation.