Hospice of Henderson County, Inc.

The investigators propose to study the feasibility, acceptability, usability and outcomes of a new clinical decision support system for clinicians of opioid therapy in the context of specialist palliative care for serious chronic illness. The system provides clinicians with patient-specific genetic information on opioid responsiveness and multi-drug interactions. This clinical decision support system should improve the clinician's ability to identify the optimal pain medication and dosage, and reduce risks associated with multi-drug treatment. Investigators will conduct clinician survey's to collection information about the clinical decision support system. Investigators will also conduct patient related questionnaires to determine any benefits or improvements in quality of life and symptom management from the clinical decision support system.

The purpose of this study is to determine if naloxegol can be used in the treatment of opioid-induced constipation in patients with cancer and pain. This phase 4 study consists of a two week randomized double blind period followed by a two week open-label period.