The purpose of this study is to evaluate the efficacy and safety of rivaroxaban compared with placebo in the prevention of symptomatic venous thromboembolism (VTE) events and VTE-related death post-hospital discharge in high-risk, medically ill patients.
Key Inclusion Criteria: * The duration of the index hospitalization must have been at least 3 and no more than 10 consecutive days * Must meet venous thromboembolism (VTE) risk criteria with a total modified Improve VTE Risk Score of: greater than or equal 4, or 3 with D-dimer \> 2\* upper limit of normal (ULN), or 2 with D-dimer \> 2\*ULN Key Exclusion Criteria: * Any serious bleeding within 3 months prior to randomization or occurring during index hospitalization * Serious trauma (including head trauma) within 4 weeks before randomization * History of hemorrhagic stroke at any time in the past * Any medical condition that requires chronic use of any parenteral or oral anticoagulation