Overview An Open-Label, Multicentre, Long-Term Extension Study of Etanercept in Ankylosing Spondylitis Status: Completed Trial end date: 2004-07-01 Target enrollment: Participant gender: Summary The primary objective of this study was to determine the long-term safety of etanercept in adults with AS who had completed study 0881A3-311-EU. Phase: Phase 3 Details Lead Sponsor: Wyeth is now a wholly owned subsidiary of PfizerTreatments: Etanercept