| Unknown | Femoral Artery Block for Reduction of Tourniquet Induced Hypertension NCT05954689 | Hospital da Luz, Portugal | N/A |
| Unknown | Lateral Cutaneous Nerve and PENG Blocks Versus Suprainguinal Fascia Iliaca Block in Post-op Analgesia of Hip F NCT05749367 | Federal University of Minas Gerais | N/A |
| Completed | Comparison of Sympathetic Blockade Duration in Brachial Plexus Blocks Performed by Different Methods NCT07326436 | Bozyaka Training and Research Hospital | N/A |
| Completed | Effect of Transversus Thoracic Muscle Plane Block (TTMP) on Analgesia NCT06601530 | Istanbul University - Cerrahpasa | Phase 4 |
| Completed | Inter-fascial Plane Between the SArtorius Muscle and FEmoral Artery (ISAFE) NCT05313269 | University of Toronto | N/A |
| Completed | Thermal-Imaging Comparison of Nerve Blocks for Bilateral Mastectomy NCT04928794 | University of New Mexico | N/A |
| Unknown | Comparison Of Femoral Block And Middle Adductor Canal Block In Patients With Knee Arthroplasty NCT04768764 | Bozyaka Training and Research Hospital | Phase 4 |
| Unknown | Comparison of Infraclavicular And Supraclavicular Block NCT04784104 | Bozyaka Training and Research Hospital | Phase 4 |
| Withdrawn | Adductor Canal Vs Adductor Canal Plus SPANK Block for Postoperative Pain in Knee Arthroplasty Surgery NCT04290442 | Bruce Ben-David | Phase 4 |
| Completed | Combined PENG and LFCN Block for Total Hip Arthroplasty NCT04996290 | University Hospital, Antwerp | N/A |
| Unknown | TAP Block or Wound Infiltration for Laparoscopic Pediatric Appendectomy: a Pilot Study NCT04294537 | Ospedale di Circolo - Fondazione Macchi | N/A |
| Completed | Ultrasonographic and Comfort Comparison of Sitting Fetal Cross-legged Position With Lateral Decubitus Fetal Po NCT03889223 | Yeditepe University | N/A |
| Completed | Minimal Effective Concentration (EC90) of Ropivacaine NCT03688269 | Centre Hospitalier Universitaire de Besancon | Phase 3 |
| Unknown | The Effects of Ultrasound-guided Serratus Plane Block During Video-assisted Thoracoscopic Lobectomy NCT03718377 | Kyungpook National University Hospital | N/A |
| Completed | Pain and Sensation After Regional Anesthesia - Pilot Study NCT03623035 | Wake Forest University Health Sciences | — |
| Completed | Concentration Effect of Local Anesthetics on Femoral Nerve Block Efficiency NCT03623230 | Bozyaka Training and Research Hospital | Phase 4 |
| Completed | A New Neuraxial Position Technique " The Anatolian Sitting Position- Sitting Fetal Cross-legged" NCT03741465 | Yeditepe University | N/A |
| Completed | The Impact of Regional Anaesthesia on Hormone Levels in Thoracic Surgery. NCT04414488 | Medical University of Silesia | — |
| Completed | RCT Impact of Serratus Intercostal Plane Block in Video Assisted Thoracic Surgery NCT03449329 | AZ Sint-Jan AV | N/A |
| Completed | Femoral Triangle Block: Early Mobilization and Postoperative Analgesia After Total Knee Arthroplasty NCT03518450 | Hospital Universitari Vall d'Hebron Research Institute | N/A |
| Completed | PANDA-Regional Feasibility Study of a Smartphone Pain Management Application NCT03369392 | University of British Columbia | N/A |
| Unknown | PEC Block II in Mammoplasty Surgeries NCT03488888 | Federal University of São Paulo | N/A |
| Unknown | Efficacy Transverse Abdominal Plane (TAP) Block Renal Transplant Surgery NCT03181438 | Federal University of São Paulo | N/A |
| Completed | IV Dexamethasone for Prolongation of Peripheral Nerve Block NCT02864602 | University Health Network, Toronto | Phase 3 |
| Completed | Infrared Thermography for Assessment of Caudal Block in Children NCT02907957 | Ann & Robert H Lurie Children's Hospital of Chicago | N/A |
| Completed | Interaction of Sevoflurane Propofol and Remifentanil in Anesthesia for Laparoscopic Surgery NCT02457442 | Insel Gruppe AG, University Hospital Bern | Phase 4 |
| Completed | Opioid Free Anesthesia in Thoracic Surgery NCT04355468 | Medical University of Silesia | N/A |
| Completed | Regional Changes in Upper Limb Perfusion Following Brachial Plexus Block: A Pilot Study NCT02589054 | London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | — |
| Completed | Effect of a Lateral Nerve of the Thigh Block on Postoperative Pain After Total Hip Replacement Surgery NCT02289937 | Daniel Hägi-Pedersen | Phase 4 |
| Unknown | Neurologic Complications in Peripheral Regional Anesthesia - An Evaluation Based on a Standardized Protocol NCT00445016 | BG Unfallklinik Murnau | — |
| Unknown | Cardiovascular Safety Research: Bupivacaine With Vasoconstrictor Versus Ropivacaine in Brachial Plexus Block NCT00523289 | University of Sao Paulo | Phase 4 |
| Completed | A Randomised Comparison on the Dose Requirement Between, Levobupivacaine, Ropivacaine and Bupivacaine in Intra NCT00636974 | Hospital Authority, Hong Kong | N/A |