Overview Extension Study of ABBV-8E12 in Patients With Progressive Supranuclear Palsy (PSP) Who Completed Study C2N-8E12-WW-104 Status: Completed Trial end date: 2019-11-20 Target enrollment: Participant gender: Summary The purpose of this study is to assess the long-term safety and tolerability of ABBV-8E12 in subjects with progressive supranuclear palsy (PSP). Phase: Phase 1 Details Lead Sponsor: AbbVieTreatments: Tilavonemab