Overview Open-Label Extension Assessing Long Term Safety and Efficacy of IONIS-TTR Rx in Familial Amyloid Polyneuropathy (FAP) Status: Completed Trial end date: 2021-01-07 Target enrollment: Participant gender: Summary This study evaluates the safety and tolerability of extended dosing with IONIS-TTR Rx in patients with Familial Amyloid Polyneuropathy. Phase: Phase 3 Details Lead Sponsor: Ionis Pharmaceuticals, Inc.Collaborator: GlaxoSmithKline