Overview Switching From Morphine to Oral Methadone Plus Acetaminophen in the Treatment of Cancer Pain Status: Unknown status Trial end date: 2007-10-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine whether oral methadone plus acetaminophen can substitute morphine in the treatment of cancer pain. Phase: Phase 2/Phase 3 Details Lead Sponsor: Faculdade de Medicina do ABCTreatments: AcetaminophenMethadoneMorphine