Clinical Trials in Orofacial Neuralgias
This study will evaluate the safety and effectiveness of two drugs-dextromethorphan and topiramate-in treating orofacial (mouth and face) pain. Dextromethorphan, a commonly used cough suppressant, and topiramate, an anti-seizure medicine, block certain receptors on brain and spinal nerve cells that may cause the cells to produce electrical discharges and pain. Patients 18 years of age and older with oral and facial pain with trigeminal nerve damage and who have had pain daily for at least 3 months may be eligible for this study. Candidates will be screened with a medical history, physical examination, blood tests and psychiatric evaluation. These results will serve as baseline values for participants. Those enrolled in the study will take either dextromethorphan or topiramate in a 2-part study as follows: Dextromethorphan In Part 1, patients will take dextromethorphan and lorazepam (a commonly used anti-anxiety drug) separately in two 6-week periods. (Lorazepam is used in this study as an "active placebo" for comparison with dextromethorphan. An active placebo is a drug that does not work for the problem being studied but whose side effects are like those of the test drug.) They will take dextromethorphan for 4 weeks to determine the maximum tolerated dose (the highest dose that does not cause troubling side effects) and will stay on that dose for the remaining 2 weeks. Then they will repeat this process with lorazepam. Patients who respond to either drug may continue with Part 2 of the study, which compares these two drugs four more times to confirm the response seen in Part 1. In Part 2, the maximum tolerated dose will be determined in a 2-week period and that dose will be continued for another 2 weeks. This procedure will be repeated eight times. Throughout the study, patients will keep a daily pain diary. They will be contacted by telephone 2 to 3 times a week during dose escalation to check for side effects. At the end of each of the two 6-week periods in Part 1 and at the end of each 4-week period in Part 2 of the study, patients will have a 1-hour clinic visit. Participants who live more than a few hours' drive from NIH will have a full telephone follow-up evaluation instead of the clinic visits. Topiramate Patients who receive topiramate will follow a plan similar to that described above for dextromethorphan, with the following exceptions. They will take topiramate and an inactive placebo (a look-alike pill that has no active ingredients) in two separate 12-week periods. Patients' maximum tolerated dose will be determined in the first 8 weeks and they will stay on that dose for the remaining 4 weeks of each period. Patients who respond to the medication in Part 1 may continue with Part 2 to confirm the response. Part 2 consists of six 6-week periods. The first 4 weeks of each will be used to determine the maximum tolerated dose and the patient will remain on that dose for the next 2 weeks. Patients will keep a daily pain diary and will be contacted by phone 2 to 3 times a week while doses are being increased. Patients who complete Part 2 of the topiramate study may participate in another phase of the study that will last for 2 years. Those who continue for this phase will take topiramate for the 2-year period. They will be followed regularly by a study nurse and will come to NIH every 6 months for a follow-up visit.
NCT00001725 — Pain
Status: Completed
http://inclinicaltrials.com/pain/NCT00001725/
A Phase IIa Randomised, Double-blind, Placebo Controlled, Parallel Group, Multicentre Study Evaluating the Efficacy, Safety, Tolerability and Pharmacokinetics of AZD1386 After 3 Weeks of Treatment in Patients With Posttraumatic Neuralgia (PTN) and Postherpetic Neuralgia (PHN)
The primary aim of this study is to investigate if AZD1386 is efficacious as an analgesic in patients with peripheral neuropathic pain. This will be done by comparing the effect of AZD1386 to placebo ("inactive substance") on pain.
NCT00976534 — Pain
Status: Terminated
http://inclinicaltrials.com/pain/NCT00976534/
A Randomized Controlled Study on the Treatment of Postherpetic Neuralgia in the Head and Face With Superficial Needling Combined With Electroacupuncture
Based on the inclusion and exclusion criteria, patients with head and face PHN who met the requirements were selected as trial subjects, and the efficacy was clarified in a randomized controlled design trial. The visual analog score VAS was used as the primary evaluation index, and the depression self-assessment scale score , Hamilton depression scale, Pittsburgh sleep quality index scale, and quality of life evaluation scale (SF-36) were used as the secondary evaluation indexes, and oral pregabalin was used as the control group, and the subjects in the pregabalin and the plexus superficial stabbing combined with electroacupuncture groups were observed respectively at the time of Before treatment, immediately after the first treatment, after 2 days of treatment, after 2 weeks of treatment, after 4 weeks of treatment, after 1 month of follow-up after the end of treatment and after 2 months of follow-up after the end of treatment.
NCT06420778 — Postherpetic Neuralgia
Status: Recruiting
http://inclinicaltrials.com/postherpetic-neuralgia/NCT06420778/
Prospective, Multicentre, Randomised Withdrawal Design of a Clinical Trial Evaluating the Safety and Efficacy of a Percutaneous Peripheral Nerve Stimulation System for Patients With Postherpetic Neuralgia.
The goal of this clinical trial is to evaluate safety and efficacy of percutaneous peripheral nerve stimulation in patients with postherpetic neuralgia. The main questions it aims to answer are: 1. The efficacy of percutaneous peripheral nerve stimulation in patients with postherpetic neuralgia 2. The safety of percutaneous peripheral nerve stimulation in patients with postherpetic neuralgia Participants are going to undergo procedure that implant peripheral nerve stimulation electrode produced by Jiangsu CED Medtech Co., Ltd. Then the subjects, whose VAS scores decrease more 30% than baseline level, are classified into two groups randomly. One of the group receiving active stimulation called trial group and another receiving placebo stimulation called control group. All subjects are required to make their own subjects' pain diary to record VSA score before and after implantation until at the end of follow-up. Also, participants are asked to report use of analgesic medications, number of awakenings and adverse events. Researchers will compare pain scores between the two groups to see if peripheral nerve stimulation is effective to patients with postherpetic neuralgia.
NCT06290661 — Neuropathic Pain
Status: Recruiting
http://inclinicaltrials.com/neuropathic-pain/NCT06290661/
Efficacy of Electroacupuncture Combined With Pregabalin in the Treatment of Trigeminal Herpetic Neuralgia: a Multicenter Randomized Controlled Trial Study Protocol
Trigeminal herpetic neuralgia is a common type of Zoster-associated Pain (ZAP), which troubles individuals in all ages and burdens society all over the world. Eleactroaupuncture (EA) is increasingly used in the treatment of ZAP due to its advantages such as low price, high safety, no adverse reactions, and high patient acceptance. Therefore, it is necessary to conduct randomized controlled trials to evaluate the effectiveness and safety of EA on ZAP and whether EA can be used as a substitute for pregabalin.
NCT06261801 — Trigeminal Herpetic Neuralgia
Status: Recruiting
http://inclinicaltrials.com/trigeminal-herpetic-neuralgia/NCT06261801/
A Randomized, Parallel Arm, Sham-controlled, Double-blinded, Investigator-initiated Trial to Investigate the Safety and Efficacy of Percutaneous Peripheral Cryoneurolysis Therapy in Medically Refractory Trigeminal Neuralgia: a Pilot Study
The CryoGem Trial is a research study that tests a freezing technique called cryoneurolysis to see if it helps relieve pain in adults with trigeminal neuralgia. Trigeminal neuralgia is a condition that causes severe facial pain. In this study, we want to find out if the freezing technique is effective and safe. We will do this by comparing two groups of adults with trigeminal neuralgia. One group will receive the actual treatment, while the other group will receive a fake treatment called a sham. Neither the participants nor the assessors will know which group they are in (this is called a blinded study). For the next four weeks, participants in both groups will continue recording their headaches without knowing which treatment they are receiving. After this initial period, there will be an extension period where all participants can receive treatment as needed for up to two years. The results of this study will help us decide if the freezing technique is a viable treatment option for trigeminal neuralgia. Our main goal is to see how many people in each group have a significant reduction in pain (at least 75% less pain). We will also record other important information about the participants. We are looking to recruit up to 24 adults with trigeminal neuralgia to take part in this study. All participants will keep a daily diary for two weeks to track their headaches before starting the treatment. Then, they will be randomly assigned to either the treatment group or the sham group.
NCT06213155 — Trigeminal Neuralgia
Status: Recruiting
http://inclinicaltrials.com/trigeminal-neuralgia/NCT06213155/
A Study to Evaluate the Efficacy and Safety of HSK16149 Capsule Combined With L-carnitine Hydrochloride Tablets and Lipoic Acid Combined With L-carnitine Hydrochloride Tablets in Diabetic Peripheral Neuralgia Patients in China
Observe the effects of HSK16149 capsule combined with acetyl-L-carnitine hydrochloride tablets and lipoic acid combined with acetyl-L-carnitine hydrochloride tablets Efficacy and safety in diabetic peripheral neuralgia patients in China
NCT06122012 — Diabetic Peripheral Neuropathic Pain
Status: Recruiting
http://inclinicaltrials.com/diabetic-peripheral-neuropathic-pain/NCT06122012/
The Value of Sensory Index in Predicting the Success of Radiofrequency Treatment of Trigeminal Neuralgia: A Retrospective Study
Trigeminal neuralgia (TN) is defined by the International Headache Society (IHS) as "unilateral disorder characterized by brief electric shock-like pains, abrupt in onset and termination, and limited to the distribution of one or more divisions of the trigeminal nerve". It is considered the worst type of facial pain and described as intense, sharp, stabbing, and shooting like electric shock pain. It can be triggered by touch, chewing, laughing, shaving or face wash. Interventional therapies for TN are of variable efficacy and safety, and have different results for different periods of time before the recurrence of symptoms. Interventional therapy for TN is either destructive with trigeminal nerve sensory function destroyed intentionally or non-destructive with decompression of the trigeminal nerve and preservation of its regular function. The most common procedures in treating TN pain are the use of radiofrequency (RF).Combined conventional and pulsed radiofrequency (CCPRF) achieved comparable pain relief to PRF treatment alone in patients with chronic pain, the combination of PRF and CRF would increase the effect of CRF and reduce the need for long-duration CRF (LCRF) and its attendant side effects .
NCT05748132 — Radiotherapy; Complications
Status: Completed
http://inclinicaltrials.com/radiotherapy-complications/NCT05748132/
Efficacy of High Voltage VS Standard Voltage Radiofrequency on Unilateral Lower Limb Neuralgia in a Patient With Failed Back Surgery Syndrome
Postoperative lumbar spine pain syndrome (FBSS) refers to patients who have undergone surgery for lumbar spine disease one or more times and still have intractable lumbosacral pain after surgery, with or without lower limb sensory and motor dysfunction. Pain is the main reason for reducing patients' quality of life. Hussain and Erdek believe that despite up to 3 months of postoperative intervention, pain may still exist. Since persistent pain seriously affects patients' daily life and work, optimizing the FBSS treatment plan and improving the quality of life of FBSS patients cannot be ignored. At present, the treatment methods for neuropathic pain radiated to the lower extremity after lumbar spine surgery mainly include oral drug therapy, nerve block, pulsed radio frequency (PRF) and spinal cord electrical stimulation, and other minimally invasive interventional methods. Still, there is no domestic or foreign treatment method is reported in the literature to be effective.
NCT05563636 — Failed Back Surgery Syndrome
Status: Recruiting
http://inclinicaltrials.com/failed-back-surgery-syndrome/NCT05563636/
The MONARCH (Multicenter Occipital Neuralgia and Cervicogenic Headache) Case Series Study: Treatment of Head Pain With the SPRINT® Peripheral Nerve Stimulation (PNS) System
The purpose of this study is to learn if pain can be relieved by delivering small amounts of electricity (called "electrical stimulation") to the nerves at the top of the neck. This study will use a device called the SPRINT® PNS System. PNS stands for peripheral nerve stimulation (PNS). This device is cleared by the FDA for up to 60 days of use for relief of chronic or acute pain.
NCT05491915 — Cervicogenic Headache
Status: Recruiting
http://inclinicaltrials.com/cervicogenic-headache/NCT05491915/