WAINUA™ (eplontersen) granted regulatory approval in the U.S. for the treatment of adults with polyneuropathy of hereditary transthyretin-mediated amyloidosis

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Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) announced today that the U.S. Food and Drug Administration (FDA) has approved Ionis and AstraZeneca’s WAINUA™ (eplontersen) for the treatment of the polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults, commonly referred to as hATTR-PN or ATTRv-PN. WAINUA is the only approved medicine for the treatment of ATTRv-PN that can be self-administered via an auto-injector.

The approval was based on the positive 35-week interim analysis from the Phase 3 NEURO-TTRansform study which showed patients treated with WAINUA demonstrated consistent and sustained benefit on the co-primary endpoints of serum transthyretin (TTR) concentration and neuropathy impairment measured by modified Neuropathy Impairment Score +7 (mNIS+7), and key secondary endpoint of quality of life (QoL) on the Norfolk Quality of Life Questionnaire-Diabetic Neuropathy (Norfolk QoL-DN). Positive results from the Phase 3 NEURO-TTRansform study were published in The Journal of the American Medical Association (JAMA) further demonstrating the benefit of WAINUA across the spectrum of ATTRv-PN at 35, 66 and 85-weeks.

“Many people living with hereditary transthyretin-mediated amyloid polyneuropathy are unable to fully enjoy their lives because of the relentless, progressive and debilitating effects of the disease,” said Michael J. Polydefkis, M.D., professor of neurology at Johns Hopkins University School of Medicine and an investigator in the NEURO-TTRansform study. “Approval of WAINUA represents a meaningful advancement in treatment, one that gives those who are living with transthyretin-mediated amyloid polyneuropathy help managing the disease.”

ATTRv-PN is a debilitating disease that leads to peripheral nerve damage with motor disability within five years of diagnosis and, without treatment, is generally fatal within a decade. WAINUA is a ligand-conjugated antisense oligonucleotide (LICA) medicine designed to reduce the production of TTR protein at its source.

“The FDA approval of WAINUA marks an important milestone for people living with hereditary transthyretin-mediated amyloid polyneuropathy, who will now have an effective, well-tolerated treatment that can be self-administered via auto-injector to combat this devastating disease,” said Brett P. Monia, Ph.D., chief executive officer at Ionis. “It is also a pivotal moment for Ionis as WAINUA will be the first in a steady cadence of potential commercial launches for the company. We are proud to have discovered and, together with AstraZeneca, developed WAINUA, and are grateful to the patients, caregivers and investigators who participated in our clinical studies, as well as for the dedication of our scientists and researchers.”

“People with hereditary transthyretin-mediated amyloid polyneuropathy, and other forms of amyloidosis, are often misdiagnosed since symptoms can mirror other conditions,” said Isabelle Lousada, President and CEO, Amyloidosis Research Consortium “The path to getting an accurate diagnosis can often be a long, arduous journey and it is critical that a timely and accurate diagnosis is made not only for the individual experiencing symptoms but for their families and loved ones. It is exciting to see new innovations coming through and increased efforts to raise awareness in an area that has often been overlooked or neglected.”

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