| Pain in Breast Surgery Intervention (NCT04058938) | University of Kansas Medical Center | 2018-03-01 |
| Effect of Increased Pain Tolerance on Exercise Performance (NCT03934411) | University of Copenhagen | 2018-03-01 |
| Pre-Operative Single Shot Rectus Sheath Block (NCT03458598) | University of Alberta | 2018-02-16 |
| Dexmedetomidine and Ketamine in VATS Surgery (NCT03596424) | Ciusss de L'Est de l'Île de Montréal | 2018-02-01 |
| Addressing Origins of the Opioid Epidemic by Improving Prescribing for Opioid-Naive Patients (NCT03377855) | Weill Medical College of Cornell University | 2018-02-01 |
| The Staying Safe Intervention (NCT03418636) | National Development and Research Institutes, Inc. | 2018-01-31 |
| Narcotics vs NSAIDs for Post-operative Analgesia in Outpatient Rhinoplasty (NCT03457116) | NYU Langone Health | 2018-01-30 |
| Opioid Free Anesthesia and Major Spine Surgery (NCT03417193) | Lebanese American University | 2018-01-29 |
| Opioid Consumption in Cystectomy Patients (NCT03032822) | Ohio State University | 2018-01-17 |
| Cytochrome P450's Pharmacogenomics in Chronic Pain Patients (NCT03411759) | University of Bologna | 2018-01-08 |
| Opioid-Free Anesthesia in Modified Radical Mastectomy (NCT05693402) | Etienne El Helou | 2018-01-01 |
| Ibuprofen and Acetaminophen Versus Ibuprofen and Acetaminophen Plus Hydrocodone for Analgesia After Cesarean Section (NCT03372382) | The University of Texas Health Science Center, Houston | 2017-12-13 |
| Monitor-Guided Analgesia During General Anesthesia - Part II (NCT03380949) | Universitätsklinikum Hamburg-Eppendorf | 2017-12-08 |
| Digital Tools for Coping With Chronic Pain (NCT03234439) | MyStrength, Inc. | 2017-12-08 |
| Effects of Tapentadol Versus Oxycodone After Hysterectomy. (NCT03314792) | Oslo University Hospital | 2017-12-04 |
| CLoWI Versus PCA Morphine for Pain Control After Major Abdominal Surgery (NCT04503720) | JurongHealth | 2017-12-01 |
| RCT of Counseling Intervention on Post-op Opiate Use (NCT03359798) | Brigham and Women's Hospital | 2017-12-01 |
| Nonpharmacologic Reduction of Periprocedural Distress and Drug Use (NCT03328208) | Hypnalgesics, LLC | 2017-11-22 |
| A Prospective Assessment of Opioid Utilization Post-operatively in Sports Orthopaedic Surgeries (NCT03422211) | St. Louis University | 2017-11-16 |
| Evaluation of an Interactive Opioid Risk Education Program (STOMP) for Parents (NCT03287622) | University of Michigan | 2017-10-24 |
| Enhanced Recovery Strategies in Elective Breast Surgery (NCT03187080) | University of Wisconsin, Madison | 2017-10-19 |
| Monitor-Guided Analgesia During General Anesthesia - Part I (NCT03303651) | Universitätsklinikum Hamburg-Eppendorf | 2017-10-16 |
| A Randomized-controlled Trial of Post-operative Opiate Quantities After Urogynecologic Surgery (NCT03319277) | The Cleveland Clinic | 2017-10-13 |
| Negating Opioid and Pain Actively Through Intervention (NCT03306147) | Loma Linda University | 2017-10-12 |
| Cannabis for Opioid Substitution Trial (NCT03859089) | Cannabis Research Associates | 2017-10-10 |
| Perinatal Opioid Use (NCT04049032) | Medical University of South Carolina | 2017-09-01 |
| Human Brain Adaptation to Chronic Pain and Its Effects on Opioid Use (NCT03248765) | Washington University School of Medicine | 2017-08-30 |
| Satisfaction Following Cesarean Section (NCT03355248) | ProMedica Health System | 2017-08-18 |
| Peer Comparison Feedback on Opioid Prescribing (NCT03183882) | University of Pittsburgh | 2017-08-07 |
| Post-Discharge Opioid Reduction Intervention for Open, Laparoscopic, and Endoscopic Surgery (NCT03536065) | Johns Hopkins University | 2017-08-01 |
| Inpatient Multimodal Path to RecOVEry (NCT03303664) | Wake Forest University Health Sciences | 2017-07-11 |
| Opioid Prescribing After Cesarean Delivery (NCT03168425) | Vanderbilt University Medical Center | 2017-06-14 |
| Pain and Medication Use Following Surgery (NCT03179566) | University of Michigan | 2017-06-06 |
| Postpartum Opioid Prescribing Patterns and Patient Utilization (NCT03030742) | Northwestern University | 2017-06-01 |
| The Prevalence of Chronic Pain and Continued Opioid Use After Cardiac Surgery (NCT03412448) | Montreal Heart Institute | 2017-06-01 |
| Effect of Fentanyl on Main Opioid Receptor (OPRM1) on Human Granulosa Cells. (NCT03248076) | George Papanicolaou Hospital | 2017-04-01 |
| IV vs. Oral Acetaminophen as a Component of Multimodal Analgesia After Total Hip Arthroplasty (NCT03020966) | Hospital for Special Surgery, New York | 2017-02-16 |
| Developing rTMS Treatment Strategies for Pain in Opiate Dependence (NCT03576781) | Medical University of South Carolina | 2017-02-09 |
| Opioid Requirements Post Discharge of Patients Having Total Knee Arthroplasty (TKA) (NCT03106129) | Sunnybrook Health Sciences Centre | 2017-02-09 |
| Self-reported Usage Patterns of Opioid Analgesic Medications After Surgery (NCT03034278) | University of Colorado, Denver | 2017-02-03 |
| Use of a Nurse Pain Educator for Patients With Chronic Pain (NCT03044522) | NEMA Research, Inc. | 2016-11-14 |
| Opioid Consumption After Hospital Discharge in Orthopedic Surgery (NCT03185117) | Ohio State University | 2016-09-01 |
| Opioid-Free Shoulder Arthroplasty (NCT03540030) | OrthoCarolina Research Institute, Inc. | 2016-09-01 |
| Prospective Effect of Intravenous Ketorolac on Opioid Use, EBL and Complications Following Cesarean Delivery (NCT02509312) | University Hospitals Cleveland Medical Center | 2016-05-01 |
| Evaluation of a Motion-Activated Refusal-Skills Training Video Game for Prevention of Substance Use Disorder Relapse (NCT03957798) | George Washington University | 2016-02-05 |
| Investigation of the Effect of Intravenous Lidocaine Infusion on Postoperative Pain Treatment and Bowel Function in Robotic Bowel Surgery (NCT03044808) | Odense University Hospital | 2016-02-02 |
| Effect of the PainCoach App on Pain and Opiate Use After Total Knee Replacement (NCT03961152) | Kliniek ViaSana | 2016-01-15 |
| Patient-Centered Opioid Tapering Study (NCT03303209) | Stanford University | 2015-09-15 |
| A Difference-In-Differences Analysis of New Persistent Opioid Use After Surgery (NCT04805229) | University of Michigan | 2013-01-01 |
| Cognitive Function and Addiction Under Opioid Tapering (NCT03365817) | Rigshospitalet, Denmark | 2009-02-02 |
| Trial of Pregabalin for Post-operative Pain in Women Undergoing Abdominal Hysterectomy (NCT00781131) | IWK Health Centre | 2008-05-01 |
| Intraoperative Fentanyl Dose on Respiratory Complications (NCT03198208) | Massachusetts General Hospital | 2007-01-01 |
| Clinical Trial of Gabapentin to Decrease Postoperative Delirium and Pain (NCT00221338) | University of California, San Francisco | 2006-01-01 |