Akcea and Ionis receive FDA approval of TEGSEDI

Akcea Therapeutics (AKCA) and Ionis Pharmaceuticals (IONS), announced that the U.S. Food and Drug Administration has approved TEGSEDITM (inotersen) for the treatment of the polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults. TEGSEDI is now approved in the U.S., European Union and Canada. In hATTR amyloidosis, transthyretin (TTR) protein misfolds and accumulates as amyloid deposits throughout the body. TEGSEDI targets the disease at its source by reducing the production of TTR protein. In the NEURO-TTR study, treatment with TEGSEDI produced up to a 79% mean decrease from baseline in serum TTR protein in patients regardless of TTR mutation, sex, age, or race. The FDA’s approval of TEGSEDI was based on results from the Phase 3 NEURO-TTR study in patients with hATTR amyloidosis with symptoms of polyneuropathy. Results from that study demonstrated that patients treated with TEGSEDI experienced significant benefit compared to patients treated with placebo across both co-primary endpoints: the Norfolk Quality of Life Questionnaire-Diabetic Neuropathy (Norfolk QoL-DN) and modified Neuropathy Impairment Score +7 (mNIS+7), a measure of neuropathic disease progression.
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