| Recruiting | Intertransverse Process Block for Postoperative Analgesia After Thoracotomy and Lobectomy NCT07335250 | Konya City Hospital | N/A |
| Recruiting | DIPB vs. SIFIB for Postoperative Analgesia After Hip Surgery NCT07452120 | Sivas Numune Hospital | N/A |
| Not Yet Recruiting | Comparison of the Efficacy and Safety of Intravenous Buprenorphine Administered Via PCA System Versus Oxycodon NCT07434427 | Medical University of Silesia | Phase 4 |
| Not Yet Recruiting | Intertransverse Process Block to Improve Quality of Recovery After Cardiac Surgery With Sternotomy NCT06926764 | Chinese University of Hong Kong | N/A |
| Recruiting | Continuous Versus Single Injection Adductor Canal Blocks for Outpatient Total Knee Arthroplasty NCT06784882 | University of California, San Diego | Phase 4 |
| Not Yet Recruiting | Sequential Method Determination of Oxycodone for Thoracoscope Surgery Median Effective Dose of Acute Pain Trea NCT06534801 | Jianbo Wu | N/A |
| Recruiting | Clinical Prediction of Post-surgical Pain NCT06661642 | Aarhus University Hospital | — |
| Not Yet Recruiting | Effects of tDCS and VNS on Postoperative Analgesia NCT06554067 | Columbia University | N/A |
| Recruiting | Bupivacaine 0.125% Versus Bupivacaine 0.25% in Superficial Cervical Plexus Block for Tympanomastoid Surgeries NCT06381401 | Cairo University | Phase 4 |
| Completed | Modified Thoracoabdominal Nerve Plane Block In Living Liver Donors NCT06300372 | Istanbul Medipol University Hospital | N/A |
| Recruiting | Non-steroidal Anti-inflammatory in Cardiac Surgery NCT06381063 | Centre Hospitalier Universitaire, Amiens | Phase 3 |
| Recruiting | Cryoneurolysis for Acute Postoperative Pain Following Total Knee Arthroplasty NCT06088602 | Copenhagen University Hospital, Hvidovre | N/A |
| Recruiting | A Study of the Association Between Frailty and Acute Postoperative Pain in Elderly Thoracoscopic Surgery Patie NCT06281275 | Huazhong University of Science and Technology | — |
| Completed | Pain Trajectories and Predictors After Noncardiac Surgery in Elderly Patients NCT05865366 | Feng Gao | — |
| Recruiting | Effectiveness and Safety of Adjuvant Software Based on Virtual Reality for Post-thoracoscopic Surgery Pain NCT06574451 | Guangdong Provincial People's Hospital | N/A |
| Terminated | Study Assessing Pain Relief After Replacement of the Knee NCT05260008 | Allay Therapeutics, Inc. | Phase 2 |
| Completed | Axillary Brachial Plexus Block Using 0.25% Bupivacaine Versus Using 0.19%Bupivacaine in Pediatrics NCT05386095 | Cairo University | N/A |
| Completed | Effect of TPVB on Postoperative Pain and Cognitive Function After VATS in Elderly Patients NCT05364216 | The First Hospital of Qinhuangdao | N/A |
| Completed | Ultrasound Guided Bilateral Erector Spinae Block Versus Caudal in Lumbar Spine Surgeries NCT05351203 | Cairo University | N/A |
| Completed | Esketamine Combined With Pregabalin on Acute Postoperative Pain in Patients Undergoing Resection of Spinal Neo NCT05096468 | Beijing Tiantan Hospital | Phase 2 / Phase 3 |
| Completed | Effect of Virtual Reality on Patients With Acute Pain After Thoracoscopic Surgery NCT05926817 | Tianjin Medical University | N/A |
| Completed | Erector Spina Plane (ESP) Block in Pediatric Patients NCT04875390 | Ankara City Hospital Bilkent | N/A |
| Completed | Influence of Hypnoacupuncture on Early Perioperative Recovery NCT05068037 | University Medical Centre Ljubljana | N/A |
| Completed | Evaluate the Efficacy and Safety of ACP-044 for the Treatment of Acute Postoperative Pain Following Bunionecto NCT04855240 | ACADIA Pharmaceuticals Inc. | Phase 2 |
| Unknown | Preemptive Analgesia of Gabapentoids in Orthopedic Surgery NCT04775992 | King Saud University | — |
| Completed | Combined PECS II and Transversus Plane Blocks Versus Erector Spinae Block in Modified Radical Mastectomy NCT03903224 | Assiut University | N/A |
| Unknown | Subtenon and Intravenous Dexmedetomidine Effect on Patients Undergoing Cataract Surgery NCT04668456 | Menoufia University | Phase 3 |
| Completed | Safety, Tolerability, Pharmacokinetic and Pharmacodynamic Profile of HYR-PB21 in Healthy Volunteers NCT04169256 | Fruithy Medical Pty Ltd | Phase 1 |
| Unknown | Combined Epidural Morphine and Midazolam on Postoperative Pain NCT04033471 | Assiut University | Phase 1 / Phase 2 |
| Completed | Postoperative Pain Therapy With Hydromorphone TCI-PCA vs. Morphine PCA NCT02483221 | University of Erlangen-Nürnberg Medical School | Phase 4 |
| Completed | Methadone and Hydromorphone For Spinal Surgery NCT02107339 | Endeavor Health | Phase 4 |
| Completed | Prediction of Postoperative Pain by Measuring Nociception at the End of Surgery NCT01828424 | Benno Rehberg-Klug | — |
| Completed | Femoral and Epidural Block After Total Knee Arthroplasty NCT02115945 | Aydin Adnan Menderes University | EARLY_Phase 1 |
| Completed | Menstrual Phase and Postoperative Pain NCT02137135 | Aydin Adnan Menderes University | EARLY_Phase 1 |