| Completed | Incidence and Predictors of Opioid Overdose and Death Among Long-Term Users of Opioid Analgesics Opioid Overdose | — | 2019-05-02 |
| Completed | A Prospective Investigation of the Risks of Opioid Misuse, Abuse, and Addiction Among Patients Treated With Op Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | — | 2017-11-01 |
| Terminated | Discontinuation vs Continuation of Long-term Opioid Therapy in Suboptimal and Optimal Responders With Chronic Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | Phase 4 | 2016-09-14 |
| Completed | Validation of PRISM-5-Op, Measure Of Addiction To Prescription Opioid Medication Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | — | 2015-11-17 |
| Completed | An Observational Study to Develop Algorithms for Identifying Opioid Abuse and Addiction Based on Admin Claims Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | — | 2015-05-20 |
| Completed | A Quantitative Study to Assess the Construct Validity of the Prescription Opioid Misuse and Abuse Questionnair Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | — | 2015-04-07 |
| Completed | Study to Validate Coded Medical Terms Used to Identify Opioid-Related Overdose in Databases Used for PMR Study Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | — | 2015-04-07 |
| Completed | Cross-Sectional Study to Define and Validate "Doctor/Pharmacy Shopping" as Outcomes Suggestive of Abuse and/or Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | — | 2015-02-05 |
| Completed | A Qualitative Study to Assess the Content Validity of the Prescription Opioid Misuse and Abuse Questionnaire Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | — | 2015-01-02 |
| Completed | A Survey to Eval the Relation Between Doctor/Pharmacy Shopping and Outcomes Suggestive of Misuse, Abuse and/or Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | — | 2014-11-07 |
| Completed | Study to Eval Relation Btw Doctor/Pharmacy Shopping & Outcomes of Misuse, Diversion, Abuse, Addiction by Med R Opioid-Related Disorders, Opiate Addiction, Narcotic Abuse | — | 2014-11-06 |