The invention relates to a diagnostic assay for selectively measuring levels of the 35kD form of thrombin-activatable fibrinolysis inhibitor (TAFIa or TAFIai), or a derivative or variant thereof, but not the TAFI proenzyme (TAFI) or the N-terminal activation peptide of TAFI.

Provided are methods of screening compounds for any aspirin-related activity other than TAFI inhibition, and also for non-inhibition of TAFI. Compounds identified by the screening methods can be used to treat, prevent or manage in a patient pain, fever, colon cancer, pancreatic cancer or an inflammatory, platelet aggregation, fibrinolytic or hemorrhagic disease or disorder. Also provided is a method of evaluating test compounds for TAFI inhibitory activity wherein the TAFI inhibitory activity of...