| Recruiting | Opioid-Sparing Joint Replacement NCT07348627 | Emory University | Phase 3 |
| Not Yet Recruiting | Effect of Rectus Block Timing on Opioid Use NCT07433140 | Koc University Hospital | N/A |
| Recruiting | Preoperative Deep Parasternal Intercostal Plane Block and Intraoperative Opioid Use in Cardiac Surgery NCT07315308 | Gaziantep City Hospital | N/A |
| Recruiting | Pericapsular Nerve Group (PENG) Block Combined With Lateral Femoral Cutaneous Nerve (LFCN) Block or Wound Infi NCT07284615 | Ospedale Edoardo Bassini | N/A |
| Recruiting | Comparison of the Efficacy and Safety of Fixed-rate Basal Infusion Mode and Time-programmed Decremental Backgr NCT07375121 | Beijing Tiantan Hospital | N/A |
| Recruiting | Comparison of Cumulative Opioid Consumption Between Variable-Rate Feedback Infusion and Fixed-Rate Basal Infus NCT07361822 | Beijing Tiantan Hospital | N/A |
| Completed | Ultrasound-Guided Erector Spinae Plane Block in Major Spinal Surgery NCT07101198 | Diskapi Yildirim Beyazit Education and Research Hospital | N/A |
| Not Yet Recruiting | Single-level and Two-level Serratus Posterior Superior Intercostal Plan Block (SPSIPB) NCT06751407 | Ankara Etlik City Hospital | N/A |
| Enrolling By Invitation | Transnasal Sphenopalatine Ganglion Block for Postoperative Pain and Recovery in Tonsillectomy (TONwoPA) NCT07370129 | Ankara University | N/A |
| Recruiting | Effects of Erector Spinae Plane Block on Opioid Consumption, Anesthetic Consumption and Hemodynamics in Lumbar NCT06933498 | Ankara Ataturk Sanatorium Training and Research Hospital | N/A |
| Not Yet Recruiting | The Effects of ESP Block and Mid-Transverse Process to Pleura Block on Postoperative Opioid Consumption and Qu NCT06815146 | Aydin Adnan Menderes University | N/A |
| Not Yet Recruiting | Comparison of Bi-Level Erector Spinae Plane Block (ESPB) and Modified Thoraco Abdominal Plane Block (M-TAPA) NCT06742177 | Ankara Etlik City Hospital | N/A |
| Recruiting | Compared Reversed US-Guided Dorsal Penile Nerve Block (RUSDPNB) With DPNB in Circumcisions for Pediatric Patie NCT06706375 | Centre Hospitalier Universitaire Vaudois | N/A |
| Active Not Recruiting | Superficial vs Deep Serratus Anterior Plane Block for Analgesia After Mammoplasty NCT07502846 | Başakşehir Çam & Sakura City Hospital | N/A |
| Completed | Perioperative Effects of Lateral Quadratus Lumborum Block in Percutaneous Transhepatic Cholangiography NCT06618781 | Ankara Etlik City Hospital | N/A |
| Recruiting | Magnesium Sulfate in Children Undergoing Laparoscopic Appendectomy NCT06563349 | Medical University of Warsaw | Phase 4 |
| Completed | Parasternal Block Added to Serratus Anterior Plane Block in Breast Reduction Surgery NCT07432256 | Zonguldak Bulent Ecevit University | N/A |
| Completed | Anterior QLB for PCNL NCT07487415 | Zonguldak Bulent Ecevit University | N/A |
| Completed | SPSIPB for Breast Cancer Surgery NCT06225908 | Zonguldak Bulent Ecevit University | N/A |
| Unknown | Erector Spinae Block -Dexmedetomidine NCT06264739 | Aydin Adnan Menderes University | N/A |
| Completed | Retrospective Analysis of Different Quadratus Lumborum Block Techniques on Recovery Quality and Analgesic Cons NCT06851520 | Namik Kemal University | — |
| Completed | Comparison of the Intraoperative and Postoperative Effects of Ultrasound-guided Erector Spina Plane Block and NCT05845788 | Ankara City Hospital Bilkent | — |
| Completed | Comparison of Analgesic Efficacy of Quadratus Lumborum Type 3 and Suprainguinal Fascia Iliaca Compartment Bloc NCT06838156 | Başakşehir Çam & Sakura City Hospital | N/A |
| Unknown | 'The Effect of Adding LFCN Block to PENG NCT06226675 | Zonguldak Bulent Ecevit University | N/A |
| Completed | Effect of ESPB and Rhomboid Block on VATS Method NCT05618210 | Marmara University | N/A |
| Completed | Lidocaine VS Hemodynamic, Metabolic and Hormonal Response NCT05238506 | Medical University of Warsaw | Phase 4 |
| Completed | Intraoperative Analgesia Based on ANI NCT06236035 | Zonguldak Bulent Ecevit University | — |
| Completed | Erector Spinae Plane Block vs. PECS I-II Blocks After Breast-conserving Surgery NCT06758765 | Istanbul Saglik Bilimleri University | N/A |
| Unknown | Effect of Perioperative Lidocaine on Gastrointestinal Function Recovery After Lumbar Spine Surgery in Adults NCT04922359 | Peking University People's Hospital | N/A |
| Completed | Associations Between Analgesia Nociception Index and Preoperative Anxiety NCT04875572 | University of British Columbia | N/A |
| Unknown | ANI-guided Intraoperative Analgesia in Low-pressure Anesthesia NCT04319913 | Mackay Memorial Hospital | N/A |
| Completed | Application of Rectus Sheath Block based-on Incision in Upper Abdominal Surgery NCT04306159 | The First Affiliated Hospital of Anhui Medical University | N/A |
| Terminated | Perioperative Analgesia on Postoperative Opioid Usage and Pain Control in H&N Cancer Surgery NCT04176419 | Case Comprehensive Cancer Center | Phase 3 |
| Completed | Erector Spinalis Plane Block in Bariatric Surgery NCT04915521 | Meliha Orhon | N/A |
| Completed | Neuraxial Preservative Free Morphine for Normal Spontaneous Vaginal Delivery NCT04017442 | Icahn School of Medicine at Mount Sinai | Phase 4 |
| Completed | Lidocaine and Analgesia After Laparoscopic Cholecystectomy NCT03620591 | Larissa University Hospital | N/A |
| Completed | Superficial Serratus Plane Block for Modified Radical Mastectomy and Axillary Lymph Node Disection NCT03341234 | Ataturk University | N/A |
| Completed | Transversus Abdominis Plane (TAP) Block in Laparoscopic Gastric-bypass Surgery NCT01568437 | University Health Network, Toronto | Phase 3 |
| Terminated | TAP Block for Open Radical Prostatectomy. NCT01157546 | McGill University Health Centre/Research Institute of the McGill University Health Centre | Phase 1 |
| Completed | Intravenous Lidocaine for Laparoscopic Cholecystectomy NCT01062906 | McGill University Health Centre/Research Institute of the McGill University Health Centre | N/A |