| Not Yet Recruiting | Simultaneous Engagement of Networks for Alleviating Pain (SENAP) NCT07057206 | University of Minnesota | Phase 1 |
| Recruiting | Y-4 to Treat the Postherpetic Neuralgia NCT07275762 | Neurodawn Pharmaceutical Co., Ltd. | Phase 2 |
| Recruiting | Efficacy of Transcutaneous Pulsed Radiofrequency in Postherpetic Neuralgia NCT07390279 | Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization | — |
| Not Yet Recruiting | Brain Stimulation for Postherpetic Neuralgia: A Randomized Sham-Controlled Trial NCT07352553 | Huazhong University of Science and Technology | N/A |
| Recruiting | The Analgesic Efficacy and Safety of Venlafaxine for Prevention of Postherpetic Neuralgia in Patients With Acu NCT07361796 | Beijing Tiantan Hospital | N/A |
| Recruiting | Erector Spinae Plane Block Versus Transcutaneous Radiofrequency in Postherpetic Neuralgia NCT07400640 | Diskapi Teaching and Research Hospital | — |
| Recruiting | The Effectiveness of Ultra-Sound Guided Erector Spinae Block With Betamethasone for Management of Truncal Chro NCT07000409 | Cairo University | N/A |
| Recruiting | Esketamine Combined Pregabalin and Duloxetine for Postherpetic Neuralgia NCT06896994 | Beijing Tiantan Hospital | N/A |
| Not Yet Recruiting | Esketamine Combined With PRF of DRG for Postherpetic Neuralgia NCT06914193 | Beijing Tiantan Hospital | N/A |
| Active Not Recruiting | A Study of ONO-1110 in Patients With Postherpetic Neuralgia NCT06708416 | Ono Pharmaceutical Co., Ltd. | Phase 2 |
| Recruiting | The Treatment of Postherpetic Neuralgia in the Head and Face With Superficial Needling Combined With Electroac NCT06420778 | Zhejiang Chinese Medical University | N/A |
| Active Not Recruiting | Relationship Between Serum Vitamin D Levels and Postherpetic Neuralgia. NCT06232486 | Feng Gao | — |
| Completed | Ultrasound-Guided Thoracic Paravertebral Block With Steroid and Local Anesthetic for Acute Herpes Zoster: Effe NCT07349680 | Assiut University | Phase 3 |
| Recruiting | Clinical Trial of the Safety and Efficacy of Peripheral Nerve Stimulation in the Treatment of Peripheral Neuro NCT06290661 | Union Hospital, Tongji Medical College, Huazhong University of Science and Technology | N/A |
| Unknown | Correlation Between Thermal Patterns of Infrared Thermal Imaging and Clinical Phenotype in Patients With Posth NCT05568186 | Xianwei Zhang，MD | — |
| Completed | Dorsal Root Ganglion Stimulation in Postherpetic Neuropathy NCT06225960 | Istituti Clinici Scientifici Maugeri SpA | — |
| Unknown | Single-dose to Evaluate the Pharmacokinetics of GTX-101 and Subcutaneous Injectable Bupivacaine in Healthy Sub NCT05517486 | Grace Therapeutics Inc. | Phase 1 |
| Completed | To Evaluate the Efficacy and Safety of SR419 in Patients With Postherpetic Neuralgia (PHN) NCT05357677 | Shanghai SIMR Biotechnology Co., Ltd. | Phase 2 |
| Completed | Combined Application of Pulsed RF and Steroids to the DRG for PHN NCT05208918 | Mansoura University | N/A |
| Completed | To Evaluate the Efficacy and Safety of HSK16149 Capsule in Chinese Patients With Postherpetic Neuralgia NCT05140863 | Haisco Pharmaceutical Group Co., Ltd. | Phase 3 |
| Completed | The Comparison of Sympathetic Blockade of Stellate Ganglion Block and Thoracic Paravertebral Block NCT04876989 | Seoul National University | N/A |
| Completed | Prospective Observation of the Fluoroscopy-guided Cervical Epidural Approach Using the Contralateral Oblique V NCT04774458 | Asan Medical Center | N/A |
| Completed | Duloxetine for PHN NCT04313335 | Beijing Tiantan Hospital | N/A |
| Completed | Efficacy and Safety of LX9211 in Participants With Postherpetic Neuralgia NCT04662281 | Lexicon Pharmaceuticals | Phase 2 |
| Unknown | The Study on the Esketamine in the Treatment of Postherpetic Neuralgia NCT04664530 | Second Affiliated Hospital, School of Medicine, Zhejiang University | Phase 4 |
| Completed | Electroacupuncture Therapy for Treating Postherpetic Neuralgia NCT04594226 | The Third Affiliated hospital of Zhejiang Chinese Medical University | N/A |
| Completed | The Analgesic Effect of Electroacupuncture on Postherpetic Neuralgia NCT04560361 | Nanjing University of Traditional Chinese Medicine | N/A |
| Completed | Erector Spinae Plane Block in Post-herpetic Neuralgia NCT04546334 | Tanta University | N/A |
| Unknown | Incidence of Intravascular (IV) Injection During Trigeminal Nerve Blocks NCT04467398 | Seoul National University | — |
| Completed | Treatment of Chronic Postherpetic Pain With Autologous Fat Grafting - A RCT NCT04099706 | Odense University Hospital | N/A |
| Completed | The Superiority of Contralateral Oblique View for Mid-thoracic Epidural Assess NCT03789955 | Asan Medical Center | N/A |
| Completed | Single Nucleotide Polymorphisms (SNPs) Associated With Postherpetic Neuralgia NCT03708653 | Second Affiliated Hospital, School of Medicine, Zhejiang University | — |
| Unknown | Involvement of Reorganization of Cerebral Functional Connectivity in the Process of Transition to Postherpetic NCT03106896 | Second Affiliated Hospital, School of Medicine, Zhejiang University | — |
| Unknown | Comparison of the Efficacy of the Ultrasound With Fluoroscopy in Guidance of Lumbar Sympathetic Block NCT02737527 | Seoul National University | N/A |
| Unknown | Efficacy and Safety of Lidocaine Infusion Treatment in Management of Neuropathic Pain NCT02597257 | Seoul National University Hospital | Phase 2 |
| Terminated | A Comparative Study of FV-100 vs. Valacyclovir for the Prevention of Post-Herpetic Neuralgia NCT02412917 | ContraVir Pharmaceuticals, Inc. | Phase 3 |
| Completed | The Efficacy of MK-8291 in Participants With Post-herpetic Neuralgia (PHN) With Allodynia (MK-8291-012) NCT02336555 | Merck Sharp & Dohme LLC | Phase 1 |
| Unknown | Efficacy and Safety of Pregabalin Sustained Release Tablet for Postherpetic Neuralgia NCT02868801 | Jiangsu HengRui Medicine Co., Ltd. | Phase 3 |
| Completed | A Study to Evaluate the Safety and Efficacy of Topically Applied TV 45070 Ointment in Patients With Postherpet NCT02365636 | Teva Branded Pharmaceutical Products R&D, Inc. | Phase 2 |
| Terminated | Civamide Nasal Solution for Postherpetic Neuralgia of the Trigeminal Nerve NCT01886313 | Winston Laboratories | Phase 2 |
| Completed | Efficacy and Safety Study of Z160 in Subjects With Postherpetic Neuralgia NCT01757873 | Zalicus | Phase 2 |
| Terminated | Pilot Study Of Pregabalin And Prediction Of Treatment Response In Patients With Postherpetic Neuralgia NCT01603394 | Pfizer | Phase 4 |
| Terminated | Leech Therapy for Postherpetic Neuralgia NCT01744522 | Universität Duisburg-Essen | — |
| Completed | Analgesic Efficacy and Safety of V116517 in Subjects With Moderate to Severe Chronic Pain Due to Postherpetic NCT01688947 | Purdue Pharma LP | Phase 2 |
| Completed | Evaluate the Efficacy and Safety of DWP05195 in Subjects With Post-Herpetic Neuralgia NCT01557010 | Daewoong Pharmaceutical Co. LTD. | Phase 2 |
| Completed | A Comparative Study of KHK6188 NCT01544296 | Kyowa Kirin Co., Ltd. | Phase 2 |
| Completed | Effects of Pennsaid on Clinical Neuropathic Pain NCT01508676 | Massachusetts General Hospital | N/A |
| Completed | Study of Possible Changes in QST After Application of Capsaicin on Patients With Peripheral Neuropathic Pain NCT01596491 | Ruhr University of Bochum | — |
| Unknown | Evaluation of the Efficacy, Tolerability and Safety of Etoricoxib (Arcoxia) in Patients With Neuropathic Pain NCT01264237 | Analgesic Solutions | Phase 4 |
| Completed | Study to Evaluate the Safety and Analgesic Activity of ATx08-001 in Subjects With Postherpetic Neuralgia NCT01318226 | Aestus Therapeutics | Phase 2 |
| Terminated | Efficacy of Etoricoxib on Peripheral Hyperalgesia NCT01088256 | Ruhr University of Bochum | Phase 2 |
| Completed | Oxcarbazepine for the Treatment of Chronic Peripheral Neuropathic Pain NCT01302275 | Søren H. Sindrup | Phase 4 |
| Completed | Evaluation of Five Selected Markers in Skin Biopsies of Patients With Postherpetic Neuralgia and Healthy Contr NCT01379716 | Albany Medical College | N/A |
| Completed | Botulinum Toxin in Peripheral Neuropathic Pain NCT01251211 | Hospital Ambroise Paré Paris | Phase 4 |
| Completed | Study of NGX-1998 for the Treatment of Postherpetic Neuralgia NCT01228838 | NeurogesX | Phase 2 |
| Completed | A Crossover Study to Evaluate the Safety, Tolerability and Efficacy of XPF-002 in Subjects With Postherpetic N NCT01195636 | Xenon Pharmaceuticals Inc. | Phase 2 |
| Completed | A Phase 2 Study of Tapentadol Extended-Release (JNS024ER) ) in Japanese Participants With Chronic Pain Due to NCT01124617 | Janssen Pharmaceutical K.K. | Phase 2 |
| Withdrawn | Efficacy, Safety, Tolerability and Pharmacokinetics of Concomitant Administration of Tramadol With Duloxetine NCT01116531 | Turku University Hospital | Phase 4 |
| Terminated | Study to Assess the Efficacy, Safety, and Tolerability of ADL5747 in Participants With Postherpetic Neuralgia NCT01058642 | Cubist Pharmaceuticals LLC, a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) | Phase 2 |
| Completed | Study of NGX-4010 With the Use of Open Label Lidocaine (2.5%)/Prilocaine (2.5%) Cream for the Treatment of Pos NCT00916942 | NeurogesX | Phase 2 |
| Completed | Safety and Efficacy Study of KAI-1678 to Treat Pain in Subjects With Postherpetic Neuralgia NCT01106716 | KAI Pharmaceuticals | Phase 2 |
| Completed | Evaluation of Civamide Patch in Treatment of Postherpetic Neuralgia and Post-Incisional Neuralgia NCT00845923 | Winston Laboratories | Phase 2 |
| Completed | Study of Capsaicin Patch for the Management of Peripheral Neuropathic Pain NCT02228928 | Samyang Biopharmaceuticals Corporation | Phase 1 / Phase 2 |
| Unknown | Efficacy and Safety Study of SLC022 in Treating Pain Associated With Post Herpetic Neuralgia NCT00813826 | Solace Pharmaceuticals | Phase 2 |
| Completed | A Confirmatory Study of Fentanyl in Participants With Post-herpetic Neuralgia, Complex Regional Pain Syndrome NCT01008553 | Janssen Pharmaceutical K.K. | Phase 3 |
| Terminated | Analgesic Efficacy and Safety Study of T-62 in Subjects With Postherpetic Neuralgia NCT00809679 | Pfizer | Phase 2 |
| Completed | Acupuncture in Herpes Zoster Neuralgia (ACUZoster) NCT00885586 | Dominik Irnich | Phase 4 |
| Completed | A Study To Compare Pregabalin/PF-00489791 Combination Versus Pregabalin Alone In Post-Herpetic Neuralgia NCT00599638 | Pfizer | Phase 2 |
| Unknown | Study to Compare Efficacy of Topical ARYS-01 (Sorivudine) Cream 3%, Oral Valaciclovir and Combination ARYS-01 NCT00652184 | aRigen Pharmaceuticals, Inc. | Phase 2 |
| Completed | Lidocaine and Tetracaine Cream to Treat Postherpetic Neuralgia (PHN) NCT00609323 | ZARS Pharma Inc. | Phase 2 |
| Completed | A 2 Week Study of Topical KD7040 in the Treatment of Postherpetic Neuralgia (PHN) NCT00576108 | Kalypsys, Inc. | Phase 2 |
| Completed | Efficacy and Safety of Eslicarbazepine Acetate as Therapy for Patients With Post-Herpetic Neuralgia NCT00981227 | Bial - Portela C S.A. | Phase 2 |
| Completed | Safety/Efficacy Study of Retigabine vs. Placebo in Post-Herpetic Neuralgia (PHN) NCT00612105 | Bausch Health Americas, Inc. | Phase 2 |
| Completed | An Effectiveness and Safety Study With RWJ-333369 (Carisbamate) for the Study of Postherpetic Neuralgia (PHN). NCT00492323 | SK Life Science, Inc. | Phase 2 |
| Completed | New Topical Treatment for Continued Pain After Shingles NCT00566904 | Biomedical Development Corporation | Phase 1 |
| Completed | Study of a Bupivacaine Patch (Eladur™) to Treat Post- Herpetic Neuralgia NCT00478179 | Durect | Phase 2 |
| Terminated | Study to Find Out if Therapy With the Drug Pregabalin Relieves Pain During Shingles Compared With Placebo NCT00352651 | University of California, San Francisco | Phase 2 |
| Completed | Efficacy Study of Botox to Treat Neuropathic Pain NCT00527202 | Hospital Ambroise Paré Paris | Phase 4 |
| Completed | A Study Evaluating Botulinum Toxin Type A in Subjects With Postherpetic Neuralgia NCT00168441 | Allergan | Phase 2 |
| Completed | A Study Of Lidocaine Patch 5% Alone, Gabapentin Alone, And Lidocaine Patch 5% And Gabapentin In Combination Fo NCT00904202 | Endo Pharmaceuticals | Phase 4 |
| Completed | An Open-Label Follow-on Trial to Assess the Long-Term Safety and Efficacy of Oral SPM 927 in Subjects With Pos NCT00238511 | UCB Pharma | Phase 2 |
| Completed | A Study of the Effectiveness And Safety Of Lidoderm® As Add-On Treatment in Patients With Postherpetic Neuralg NCT00904020 | Endo Pharmaceuticals | Phase 4 |
| Completed | A Multi-Centre, Randomized, Double-Blind, Placebo Controlled Pilot Trial to Assess the Efficacy, Safety, and T NCT00861068 | UCB Pharma | Phase 2 |
| Completed | Shingles Prevention Study NCT00007501 | US Department of Veterans Affairs | Phase 3 |
| Withdrawn | A Study to Determine if an Investigational Pain Medicine Provides Relief of Chronic Pain After a Shingles Outb NCT00506610 | Pfizer | Phase 2 |