Preclinical Efficacy of a Hemostatic Agent in Overcoming Dual Antiplatelet Therapy.

This preclinical evaluation of a prohemostatic agent involved patients who received aspirin and clopidogrel before coronary artery stenting, the use of a humanized animal model to assess the hemostatic properties of patient platelets, as well as microfluidic assays to measure platelet reactivity. We demonstrate that our investigational product can bypass the effects of dual antiplatelet therapy (DAPT) by generating thrombin at sites of vascular injury, thereby restoring the hemostatic properties of patient platelets. Importantly, its effects could be reversed upon administration of a thrombin inhibitor. Thus, this product offers a titratable and reversible strategy for the management of defective hemostasis associated with DAPT.