The European Commission has granted marketing authorization for Cablivi (caplacizumab) for the treatment of adults experiencing an episode of acquired thrombotic thrombocytopenic purpura (aTTP), a rare blood-clotting disorder. Cablivi is the first therapeutic specifically indicated for the treatment of aTTP.
aTTP is a life-threatening, autoimmune-based blood clotting disorder characterized by extensive clot formation in small blood vessels throughout the body, leading to severe thrombocytopenia (very low platelet count), microangiopathic hemolytic anemia (loss of red blood cells through destruction), ischemia (restricted blood supply to parts of the body) and widespread organ damage especially in the brain and heart.
Despite the current standard-of-care treatment, consisting of daily plasma exchange (PEX) and immunosuppression, episodes of aTTP are still associated with a mortality rate of up to 20%, with most deaths occurring within 30 days of diagnosis1.
“aTTP is a devastating disease. Many patients undergoing current standard-of-care treatment continue to be at risk of developing acute thrombotic complications, including stroke and heart attack, recurrence of the disease, lack of treatment response and death,” said Marie Scully, M.D, professor of hematology at University College London Hospitals. “The approval of Cablivi provides an important addition to the standard-of-care treatment for patients with aTTP in Europe because it can significantly reduce time to platelet count normalization and induce a clinically meaningful reduction in recurrences.”
Cablivi was developed by Ablynx, a Sanofi company. Sanofi Genzyme, the specialty care global business unit of Sanofi, will work with relevant local authorities to make Cablivi available to patients in need in countries across Europe.
Cablivi is the company’s first Nanobody-based medicine to receive approval and the first newly approved product that will be part of Sanofi Genzyme’s Rare Blood Disorders franchise. Earlier this year, Sanofi acquired Bioverativ which has treatments for hemophilia A and B.
“The approval of Cablivi provides new hope for people diagnosed with aTTP, who to date have faced a very difficult disease with limited treatment options,” said Bill Sibold, executive VP and head of Sanofi Genzyme. “This approval is the next step towards our goal of becoming the leading rare blood disorders company in the industry. We are excited about the opportunities to continue to expand our rare blood disorders business and to help many people with very serious diseases.”
aTTP Clinical Program and Results
The approval of Cablivi in the EU is based on the Phase II Titan and Phase III Hercules studies in 220 adult patients with aTTP. The efficacy and safety of caplacizumab in addition to standard-of-care treatment, daily PEX and immunosuppression, were demonstrated in these studies.
1] Benhamou, Y. et al., Haematologica 2012
(Source: The European Commission)