Overview PPI Sequencing Study Status: Completed Trial end date: 2007-05-01 Target enrollment: Participant gender: Summary The purpose of this study is to assess how patients with gastro-oesophageal reflux disease (heartburn) who are currently receiving treatment with a proton pump inhibitor but are still experiencing symptoms will benefit from a change in treatment. Phase: Phase 4 Details Lead Sponsor: AstraZenecaTreatments: EsomeprazoleProton Pump Inhibitors