French drug major Sanofi S.A. (SNYNF,SNY) announced that the Ministry of Health, Labour and Welfare in Japan has granted orphan drug designation to riliprubart, a monoclonal antibody that selectively inhibits activated C1s in the classical complement pathway for people with chronic inflammatory demyelinating polyneuropathy or CIDP.
Despite current therapies, many patients with CIDP continue to experience residual symptoms—such as weakness, numbness, and fatigue—that contribute to long-term morbidity and reduced quality of life. Notably, approximately 30% of patients do not respond to standard treatment, Sanofi said.
The company noted that the decision by Japan's Ministry of Health, Labour and Welfare joins similar designations in the US and Europe, highlighting global regulatory recognition of riliprubart's potential to address critical unmet needs in treating this rare neurological condition.
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April 17, 2026 15:29 ET The ongoing conflict in the Middle East continues to raise concerns for policymakers who worry about the impact of the supply shock and high energy prices on the real economy. Producer price data and various survey results on the housing market were the main news from the U.S. this week. In Europe, industrial production data for the euro area gained attention. GDP figures out of China and the policy move by the Singapore central bank were in focus in Asia.