Preliminary Cohort Study on Muscle Elasticity Ultrasound Evaluation and Pathophysiological Changes in Postherpetic Neuralgia
Herpes zoster (HZ), also known as shingles, is caused by the varicella-zoster virus (VZV). Approximately 1/4 of the global population is affected by HZ, with statistics showing that about 90% of shingles patients experience acute neuralgia, and about 1/3 develop postherpetic neuralgia (PHN) after shingles. In PHN patients, about 30%-50% of the pain can persist for more than one year, and some cases can last for more than 10 years. PHN is a common complication of HZ characterized by intense pain in the area where the rash has healed, often described as burning, electric shock-like, or stabbing pain, severely affecting patients' sleep, emotions, work, and daily life. Additionally, approximately 43% of PHN patients exhibit symptoms of toxic anxiety or depression, significantly impacting their quality of life and increasing the societal burden. Due to the global aging population, the incidence of HZ and PHN is expected to significantly increase in the next 10 years, making effective prevention and treatment of PHN an urgent health issue. Although various treatments are available for PHN, a small number of patients remain unresponsive to multiple therapies, resulting in treatment-resistant chronic pain. The lack of a clear understanding of the underlying mechanisms contributes to the suboptimal treatment outcomes for PHN. Elastography, a technique that quantifies the mechanical properties of tissues by measuring their natural elasticity, trauma, degeneration, and healing processes, has shown promise as an innovative approach. Shear wave elastography (SWE) has been used to study the biomechanical characteristics of skeletal muscles by measuring the propagation speed of shear waves induced by ultrasound to quantify the shear elastic modulus, which characterizes the stiffness of soft tissues. In this study, the investigators intend to use elastography to observe the elasticity of muscle tissue in the lesions of PHN patients, with the unaffected side serving as a control. Elastography offers non-invasive, convenient, and straightforward advantages, further contributing to providing new directions for treatment and revealing the role of muscle tissue in PHN by offering new evidence. It also offers new treatment options and targets for PHN patients.
NCT05912738 — Shear Wave Elastography
Status: Recruiting
http://inclinicaltrials.com/shear-wave-elastography/NCT05912738/
A 52-week, Open Phase III Study Evaluating the Long-term Safety and Efficacy of HSK16149 Capsules in Chinese Patients With Peripheral Neuralgia
Investigate the long-term(52 weeks) safety and efficacy of HSK16149 capsules in Chinese patients with periphcral neuralgia
NCT05890053 — Peripheral Neuropathic Pain
Status: Active, not recruiting
http://inclinicaltrials.com/peripheral-neuropathic-pain/NCT05890053/
A Randomized, Controlled, Double-blind, Multicenter, Sympathetic Ganglion, High-voltage Pulsed Radiofrequency Ablation of Peripheral Neuralgia in Patients With Diabetic Foot
The Sham Operation Group was used as control, the patients were assessed with the Digital Rating Scale (NRS) , the quality of life-related scale (Euro Qol) , clinical outcome measures: physician's overall impression of changes in pain (CGIC) and patient's overall impression change scale (PGIC) , skin temperature measurement, toe Oxygenation measurement, and anxiety and depression scores (Gad-7, Phq-9) , objective: to evaluate the efficacy and safety of high voltage pulsed radiofrequency in the treatment of peripheral neuralgia in patients with diabetic foot.
NCT05831059 — Diabetic Foot
Status: Active, not recruiting
http://inclinicaltrials.com/diabetic-foot/NCT05831059/
Artificial Intelligence to Predict Surgical Outcomes and Assess Pain Neuromodulation in Trigeminal Neuralgia Subjects
Trigeminal neuralgia (TN) is the most common cause of facial pain. Medical treatment is the first therapeutic choice whereas surgery, including Gamma Knife radiosurgery (GKRS), is indicated in case of pharmacological therapy failure. However, about 20% of subjects lack adequate pain relief after surgery. Virtual reality (VR) technology has been explored as a novel tool for reducing pain perception and might be the breakthrough in treatment-resistant cases. The investigators will conduct a prospective randomized comparative study to detect the effectiveness of GKRS aided by VR-training vs GKRS alone in TN patients. In addition, using MRI and artificial intelligence (AI), the investigators will identify pre-treatment abnormalities of central nervous system circuits associated with pain to predict response to treatment. The investigators expect that brain-based biomarkers, with clinical features, will provide key information in the personalization of treatment options and bring a huge impact in the management and understanding of pain in TN.
NCT05810428 — Virtual Reality
Status: Recruiting
http://inclinicaltrials.com/virtual-reality/NCT05810428/
A Multicenter, Randomized, Double-Blind, Double-Dummy , Pregaballin-Controlled, Phase 2 Study to Evaluate the Efficacy and Safety of HSK16149 Capsules in Chinese Patients With Herpetic Neuralgia
Investigate the efficacy and safety of HSK16149 capsules in Chinese herpetic Neuralgia following 4 weeks treatment in comparison to pregabalin.
NCT05763550 — Herpetic Neuralgia
Status: Completed
http://inclinicaltrials.com/herpetic-neuralgia/NCT05763550/
Inflammatory Cytokine and Neuropeptide Study in Patients With Trigeminal Neuralgia
Investigators performed this study to investigate the expression levels inflammatory cytokine and neurotransmitters (calcitonin gene-related peptide (CGRP), substance P (SP), vasoactive intestinal peptide (VIP), and β-endorphin) in peripheral blood of participants with primary trigeminal neuralgia (TN).
NCT05685797 — Trigeminal Neuralgia
Status: Recruiting
http://inclinicaltrials.com/trigeminal-neuralgia/NCT05685797/
Observational Study on the Treatment of Trigeminal Neuralgia by Radiosurgery
This study aims to evaluate the outcome of patient treated by radiosurgery on LINAC with high dose rate for classical trigeminal neuralgia
NCT05677243 — Trigeminal Neuralgia
Status: Recruiting
http://inclinicaltrials.com/trigeminal-neuralgia/NCT05677243/
Paresthesia-free Peripheral Nerve Field Stimulation for Trigeminal Neuralgia: a Double-blinded, Randomized Trial (FreeST Trial)
Study type: Prospective, double-blinded, double arm, cross-over, randomized controlled clinical trial. Brief protocol: Postoperative week 0-2 -> Conventional parameters (parameters tested during trial period) Postoperative week 2-6 -> Sham stimulation (2 weeks) and paresthesia-free stimulation (2 weeks) double-blind crossover design Postoperative week 6 - month 12 -> Parameters that patients feel more benefit from
NCT05615714 — Trigeminal Neuralgia
Status: Recruiting
http://inclinicaltrials.com/trigeminal-neuralgia/NCT05615714/
Correlation Between Different Thermal Patterns of Infrared Thermal Imaging and Clinical Phenotype and Prognosis in Patients With Postherpetic Neuralgia
Postherpetic neuralgia (PHN) is the most frequent complication of herpes zoster(HZ) and is defined as pain persisting for >1month after the healing of herpetic skin lesion or pain persisting for > 3 months following the onset of HZ. PHN manifests as spontaneous throbbing, stabbing, or burning, usually accompanied by various abnormal sensory symptoms , which affect 5-20% of patients with HZ. Due to the lack of accurate and objective auxiliary examination tools, it is difficult for diagnosis and treatment of PHN. As a non-invasive examination method, infrared thermal imaging (IRT) can play a role in the diagnosis and treatment of neuropathic pain by objectively reflecting the changes and distribution characteristics of human body surface temperature. However, there are few studies on the relationship between clinical phenotype and thermal infrared image temperature changes in PHN patients, and the relationship between the thermal pattern of skin temperature and the duration of disease and treatment progress in PHN patients has not been fully elucidated. This study was conducted to investigate the relationship of thermal imaging data with the duration of the disease, clinical phenotype, treatment effect, in order to explore the role of infrared thermal imaging in the diagnosis and treatment of PHN. Methods：all PHN patients will included. At each visit, a pain NRS score was performed, and clinical phenotypes were tested and labeled, including: allodynia, numbness, itching, heat sensation, cold sensation, and the most painful area(MPA). Infrared thermal imaging was performed, the Average Relative Temperature (ART) within the affected area and the contralateral area was compared. The relationship between the temperature change and duration of the disease, clinical phenotype, treatment effect was assessed.
NCT05568186 — Postherpetic Neuralgia
Status: Recruiting
http://inclinicaltrials.com/postherpetic-neuralgia/NCT05568186/
A Prospective, Randomized Comparison of the Radiofrequency of Gasserian Ganglion Versus Peripheral Branches of the Trigeminal Nerve for the Treatment of Trigeminal Neuralgia.
The aim of this study is to compare the efficacy of radiofrequency of the Gasserian ganglion versus peripheral branches of the trigeminal nerve for the treatment of trigeminal neuralgia.
NCT05516888 — Trigeminal Neuralgia
Status: Completed
http://inclinicaltrials.com/trigeminal-neuralgia/NCT05516888/