ZURICH, April 17 Roche Holding AG's emicizumab drug for treating haemophilia A showed positive interim results in a phase III study with children with inhibitors to clotting protein factor VIII, the Swiss drugmaker said on Monday.
Roche is hoping to win a slice of the $11 billion-a-year haemophilia drug market with the drug, also known as ACE910 and designed to compete with more traditional treatments from Novo Nordisk and Shire.
Roche's drug is being closely watched because it could change the way the disease is treated.
Haemophilia patients, whose blood does not clot properly, need life-saving infusions of clotting factors, but development of inhibitors in many of those being treated can interfere with efforts to control their bleeding.
"At this interim analysis after a median of 12 weeks of treatment, emicizumab prophylaxis showed a clinically meaningful reduction in the number of bleeds over time," Roche said in a statement.
Roche said managing haemophilia A with inhibitors to factor VIII was especially challenging for children and their caregivers because bleeding was difficult to control and current treatments required frequent intravenous infusions.
Roche published encouraging data on the drug in December from a phase III study with adults. (Reporting by Silke Koltrowitz; editing by John Stonestreet)
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