PAIN OUT: Improvement in Postoperative PAIN OUTcome

PAIN OUT is a multi-national, non-interventional registry and benchmark project, assessing and analysing clinical and patient-reported outcome data of postoperative pain.

NCT Number	NCT02083835
Lead Sponsor	University of Jena Collaborators: Jena University Hospital, University of Exeter, University of Leipzig, Takwa GmbH, University of Basel, Parc de Salut Mar, University Hospital Muenster, Charite University, Berlin, Germany, County Clinical Emergency Hospital Cluj-Napoca, University of London, Luzerner Kantonsspital, Hôpital Raymond Poincaré, Azienda Ospedaliera Santa Maria Degli Angeli, Tel-Aviv Sourasky Medical Center, University Hospital, Saarland, Insel Gruppe AG, University Hospital Bern, University of Bern, University Hospital, Geneva, University of Lausanne Hospitals, Fox Valley Orthopedic Institute, Landspitali University Hospital, St. Luke's Medical Center, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA), Rambam Health Care Campus, Fundación Santa Fe de Bogota, University Hospitals Coventry and Warwickshire NHS Trust, Chinese PLA General Hospital, Wuhan TongJi Hospital, University Medical Center Nijmegen, Military Medical Academy, Belgrade, Serbia, Hospital Ambroise Paré Paris, Vrije Universiteit Brussel, Hospital Son Espases, Azienda Ospedaliera, University of Campania Luigi Vanvitelli, University Medical Center Groningen
Conditions	Post-operative Pain
Enrollment	200,000 participants
Start Date	2009-01
Primary Completion	2030-12 (estimated)
Study Completion	2030-12-31 (estimated)
Updated on ClinicalTrials.gov	2026-05-06