Using a Blood Test and Software Tool to Guide Treatment for Venous Thromboembolism

Contraindication to ongoing anticoagulation

Contraindication to discontinuation of anticoagulation (examples include but not limited to: known antiphospholipid syndrome or factor V leiden, active arterial thrombus, catheter-associated thrombus, on anticoagulation for atrial fibrillation or other non-oncologic reasons)

History of major bleeding in the last six months (major bleeding defined as fatal bleeding, and/or symptomatic bleeding in a critical area or organ, such as intracranial, intraspinal, intraocular, retroperitoneal, intra-articular or pericardial, or intramuscular with compartment syndrome; bleeding that necessitates acute surgical intervention; bleeding causing a fall in hemoglobin levels of 1.24 mmol/L (2 g/dL or greater) or more; or bleeding leading to a transfusion of 2 U or more of whole blood or red cells).

Known diagnosis of disseminated intravascular coagulation (DIC)