Takeda, Arrowhead spotlight data from small trial showing RNAi works in a rare liver condition
Almost two years after Takeda wagered $300 million cash to partner with Arrowhead on an RNAi therapy for a rare disease, the companies are spelling out Phase II data that they believe put them one step closer to their big dreams.
In a small, open label study involving only 16 patients who had liver disease associated with alpha-1 antitrypsin deficiency (AATD), Arrowhead’s candidate — fazirsiran, previously ARO-AAT — spurred substantial reductions in accumulated mutant AAT protein in the liver, a hallmark of the condition. Investigators also tracked improvements in symptoms, with seven out of 12 who received the high, 200 mg dose seeing regression of liver fibrosis.
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