Overview Duloxetine in Osteoarthritis (OA) Pain Status: Completed Trial end date: 2014-08-01 Target enrollment: Participant gender: Summary This study aims to determine in people with knee Osteoarthritis (OA) if relief of pain after treatment with either duloxetine or placebo is associated with changes in brain anatomy. Phase: Phase 4 Details Lead Sponsor: Northwestern UniversityCollaborator: Eli Lilly and CompanyTreatments: Duloxetine Hydrochloride