Martine Jandrot-Perrus MD, PhD. Emeritus Research Professor
Inserm University Paris Diderot
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Blood platelets are key actors in thrombosis a leading cause of global mortality estimated to account for 1 in 4 death worldwide in 2010.
Thrombosis is associated with cardiovascular diseases (myocardial infarction, stroke, lower limb ischemia, venous thromboembolism), and with numerous pathologies such as cancer, infections or inflammatory diseases. Currently available antiplatelet drugs are the cornerstone of therapy for patients with acute coronary syndromes. However, these drugs all carry an inherent risk of bleeding that restricts their use in sensitive populations and when arterial thrombosis occurs in the cerebral territory. At present the only acute treatment option available for ischemic stroke consists in revascularization by thrombolysis, and/or mechanical thrombectomy. But the number of patients eligible to these treatments is low (» 15% of all patients) and the success rate does not exceed 50%. The responsibility of platelets in the failure for thrombolysis / thrombectomy to restore vascular patency is strongly suspected.
There is thus a clear medical need for new antiplatelet drugs with an improved safety profile. We set out to develop ACT017, a novel, first in class, therapeutic antibody to platelet glycoprotein VI with potent and selective antiplatelet effects. The interest of GPVI resides in the fact that it’s a receptor involved in the development of occlusive thrombi but that it is not strictly required for physiological hemostasis. Continue reading →
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