| Recruiting | Sensory Spinal Cord Stimulation NCT07095036 | University of North Carolina, Chapel Hill | N/A |
| Suspended | Study to Assess Epidural Resiniferatoxin for the Treatment of Intractable Pain Associated With Advanced Cancer NCT05067257 | Sorrento Therapeutics, Inc. | Phase 2 |
| Recruiting | A Study of the Safety and Tolerability of GA in the Treatment of Patients With Refractory Neuropathic Pain NCT06596681 | Beijing Tiantan Hospital | EARLY_Phase 1 |
| Completed | Use of Ketamine in Severe Pain Syndromes NCT06537375 | Erasme University Hospital | — |
| Terminated | Study to Evaluate Neuromodulation Subject Experience With Contemporary Spinal Cord Stimulation (SCS) Modalitie NCT05775510 | MedtronicNeuro | — |
| Recruiting | Medullary Stimulation for the Treatment of Refractory Neck Pain (S2M) NCT05398003 | Nantes University Hospital | N/A |
| Recruiting | APP-based Precise Management System of Chronic Intractable Pain NCT05761392 | Beijing Tsinghua Chang Gung Hospital | N/A |
| Completed | Impact of DuoTherm Compared to TENS on Pain and Disability With Acute and Chronic Low Back Pain NCT04494698 | MMJ Labs LLC | N/A |
| Completed | Identification of Outcome Predictors and Stratification of Responder Profiles Implanted With Spinal Cord Stimu NCT04587674 | Poitiers University Hospital | N/A |
| Active Not Recruiting | Intermittent vs. Continuous Dorsal Root Ganglion Stimulation NCT04727216 | Spine and Pain Institute of New York | N/A |
| Unknown | Radiocontrast Media in the Pulsed Radiofrequency Treatment NCT04876469 | Sanliurfa Education and Research Hospital | N/A |
| Completed | Determination of Longus Colli Muscle Thickness by Ultrasonography NCT05108103 | Istanbul University | — |
| Withdrawn | Phase 3 Study to Assess Resiniferatoxin vs Standard of Care for the Treatment of Intractable Cancer Pain NCT04572776 | Sorrento Therapeutics, Inc. | Phase 3 |
| Completed | Investigating Biological Targets, Markers, and Intervention for Chronic Pain NCT04625504 | Vanderbilt University Medical Center | N/A |
| Completed | How Does Mindfulness Meditation Buffer the Negative Effects of Pain and Suffering in the COVID-19 World? (Pain NCT04602286 | The University of Queensland | N/A |
| Completed | Efficacy of Ketamine in Post Anesthesia Recovery Room NCT04701008 | University of Alberta | — |
| Completed | Psychosocial, Behavioral, and Radiologic Changes Following Radiosurgery for Benign Neurologic Disease NCT04688554 | Vanderbilt University Medical Center | — |
| Unknown | Transitioning to a Valve -Gated Intrathecal Drug Delivery System NCT04312685 | Bux, Anjum, MD | N/A |
| Completed | Comparison of DTM™ SCS Therapy Combined With Conventional Medical Management (CMM) to CMM Alone in the Treatme NCT06442410 | MedtronicNeuro | N/A |
| Completed | Spinal Cord Stimulation in the Treatment of Chronic, Intractable Pain Using the Nalu™ Neurostimulation System NCT04503109 | Nalu Medical, Inc. | N/A |
| Unknown | Study of the Impact of the Femoral Implant "Y-strut" on Lytic Bone Metastases of the Femoral Neck (WAZA-ARY) NCT03887494 | Assistance Publique - Hôpitaux de Paris | N/A |
| Unknown | Ropivacaine/Dexamethasone and 10% Lignocaine Injection in GPN Block for Intractable Cancer Pain NCT04085120 | All India Institute of Medical Sciences | N/A |
| Completed | Pawsitive Impacts of Therapy Dog Visits NCT04727749 | University of Saskatchewan | N/A |
| Completed | Post-market, Randomized, Controlled, Prospective Study Evaluating Intrathecal Pain Medication (IT) Versus Conv NCT04096391 | Evolve Restorative Center | N/A |
| Unknown | PET Patterns, Biomarkers and Outcome in Burst SCS Treated FBSS Patients NCT03419312 | Uppsala University | N/A |
| Completed | BurstDR™ micrOdosing stimuLation in De-novo Patients NCT03350256 | Abbott Medical Devices | N/A |
| Terminated | High-Density Spinal Cord Stimulation for the Treatment of Chronic Intractable Pain Patients NCT03318172 | Seoul National University | N/A |
| Completed | Patient Controlled Intrathecal Analgesia With Bupivacaine for Chronic Low Back Pain NCT02886286 | University Hospitals Cleveland Medical Center | Phase 4 |
| Unknown | Efficacy and Safety of Ultra-low Dose Methadone as Adjuvant Analgesic in Cancer Patients With Pain NCT02687347 | McGill University Health Centre/Research Institute of the McGill University Health Centre | Phase 3 |
| Completed | OPTIONS Spinal Cord Stimulation Programming Parameters NCT02503787 | MedtronicNeuro | N/A |
| Terminated | Improving Outcomes and Lowering Costs by Integration of Primary Care Providers and Pain Medicine Physicians fo NCT02484937 | Rush University Medical Center | N/A |
| Unknown | Observational Study of the Impact of Genetic Testing on Healthcare Decisions and Care in Interventional Pain M NCT02485795 | Proove Bioscience, Inc. | — |
| Completed | Efficacy and Safety of Silk Fibroin With Bioactive Coating Layer Dressing NCT02091076 | Chulalongkorn University | Phase 1 / Phase 2 |
| Completed | A Phase 1 Study of Substance P-Saporin in Terminal Cancer Patients With Intractable Pain NCT02036281 | University of Texas Southwestern Medical Center | Phase 1 |
| Withdrawn | Effectiveness of Ketamine in Malignant Neuropathic Pain Relief NCT01951911 | Haukeland University Hospital | Phase 3 |
| Withdrawn | Pilot Study Comparing Treatment With Dexmedetomidine to Midazolam for Symptom Control in Advanced Cancer Patie NCT01687751 | Fraser Health | Phase 2 |
| Completed | Clinical Study on Silk Sericin Wound Dressing for Split-thickness Skin Graft Donor Sites Treatment NCT01539980 | Chulalongkorn University | Phase 1 / Phase 2 |
| Completed | Pain Blocking During Drug Administration or Blood Collection With Needles NCT01166906 | University of California, Irvine | — |
| Completed | Evaluation of Stepped Care for Chronic Pain in Iraq/Afghanistan Veterans (ESCAPE) NCT00386243 | VA Office of Research and Development | N/A |
| Terminated | A Study To Evaluate Pregabalin In The Treatment Of Moderate To Severe Chronic Bone Pain Related To Metastatic NCT00381095 | Pfizer's Upjohn has merged with Mylan to form Viatris Inc. | Phase 4 |
| Terminated | CONCEPT: Crossover Efficacy Pain Trial in Motor Cortex Stimulation for Intractable Neuropathic Pain NCT00122915 | MedtronicNeuro | Phase 3 |
| Completed | Phase III Clinical Trial of Fentanyl Transdermal Matrix Patch, in the Management of Chronic Intractable Pain- NCT00216684 | Janssen Pharmaceutical K.K. | Phase 3 |
| Completed | Phase II Clinical Trial of Fentanyl Transdermal Matrix Patch, in the Management of Cancer Pain- Assessment of NCT00216658 | Janssen Pharmaceutical K.K. | Phase 2 |
| Completed | An Implantable Spinal Cord Stimulation Pain Management System NCT00205855 | Boston Scientific Corporation | Phase 3 |
| Completed | Long-term Effect of Motor Cortex Stimulation in Patients Suffering From Chronic Neuropathic Pain NCT03189823 | Radboud University Medical Center | — |