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Sanofi, Alnylam present positive complete results of patisiran from phase 3 study in hATTR amyloidosis patients with polyneuropathy

Published 03 November 2017

Sanofi Genzyme, and Alnylam Pharmaceuticals have reported positive complete results from the Apollo Phase 3 study of patisiran, an investigational RNAi therapeutic being developed for patients with hereditary ATTR (hATTR) amyloidosis with polyneuropathy.

These clinical data were presented today in an oral presentation at the 1st European ATTR Amyloidosis Meeting for Patients and Doctors being held November 2-3, 2017 in Paris, France.

Based on these results, Alnylam intends to file a new drug application (NDA) in the United States for patisiran by end-2017 and a marketing authorization application (MAA) in the European Union shortly thereafter.

The full APOLLO results showed improvement with patisiran relative to placebo in the primary endpoint of modified Neuropathy Impairment Score +7 (mNIS+7) and additional secondary endpoints encompassing sensory, motor, and autonomic neuropathy symptoms, as well as in exploratory cardiac endpoints, at 18 months.  Patients exhibited improved quality of life, activities of daily living, nutritional status, motor strength, and ambulatory ability, with reduced disease symptoms and disability.

Favorable effects of patisiran relative to placebo were observed across subgroups defined by demographic and baseline hATTR amyloidosis disease characteristics. In a pre-specified cardiac subpopulation, significant positive effects were observed for patisiran on certain exploratory cardiac biomarker and echocardiographic endpoints.

The most commonly reported adverse events (AEs) that occurred more frequently in patisiran-treated patients were generally mild to moderate and included peripheral edema and infusion-related reactions (IRRs).

 The frequency of deaths and serious adverse events (SAEs) was similar in the patisiran and placebo groups. These data support the potential of patisiran to stabilize and even improve the cardinal, multi-system disease manifestations of hATTR amyloidosis, including improvement in patients’ quality of life.

“We are very pleased for patients and families living with hATTR amyloidosis as we believe these results from APOLLO offer new hope for the treatment of this devastating disease. Indeed, patisiran holds the potential to halt or improve neurological impairment and broader disease features in patients with hATTR amyloidosis. We also view these results as a landmark achievement for the field of RNAi therapeutics, as we believe they demonstrate the transformational potential of this novel class of innovative medicines,” said Akshay Vaishnaw, M.D., Ph.D., Executive Vice President of R&D at Alnylam.

“Alnylam is indebted to all the patients, investigators, and study staff who took part in the APOLLO study, making this important and notable milestone possible. We’re also grateful to the caregivers and family members whose support of APOLLO patients was such an important contribution. With these promising APOLLO data in hand, we intend to start filing our results with regulatory authorities in late 2017 with the goal of achieving approval in mid-2018.”



Source: Company Press Release