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Neuropathic Pain clinical trials

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NCT ID: NCT04876989 Completed - Neuropathic Pain Clinical Trials

The Comparison of Sympathetic Blockade of Stellate Ganglion Block and Thoracic Paravertebral Block

Start date: July 21, 2021
Phase: N/A
Study type: Interventional

The purpose of this study is to investigate the effect of ultrasound-guided thoracic paravertebral block (TPVB) when performing sympathetic block for upper limb pain control.

NCT ID: NCT04820426 Completed - Clinical trials for Rheumatoid Arthritis

Evaluation of the Effect of Neuropathic Pain on Quality of Life in Rheumatoid Arthritis Patients

Start date: April 1, 2021
Phase:
Study type: Observational

Rheumatoid arthritis is a chronic inflammatory disease that mainly affects the joint synovium. Rheumatoid arthritis patients define pain as their major symptom and the most important reason for applying to a healthcare institution. Approximately 70% of rheumatoid arthritis patients state that improvement in their pain compared to other symptoms of the disease is their priority. Pain in rheumatoid arthritis patients is also important as the disease affects approximately 0.5-1% of patients worldwide. Although pain in rheumatoid arthritis patients can be persistent or intermittent, localized or widespread, it has often been associated with fatigue and psychosocial stress. Although nociceptive pain,defined as 'gnawing' or 'aching', is frequently observed in rheumatoid arthritis patients, typical neuropathic pain,such as 'burning' or 'itching', can be observed in some RA patients. It is thought that neuropathic pain may occur as a result of lesions or disease affecting the somatosensorial nervous system. Neuropathic pain can occur with little or no stimulus, and its symptoms are abnormal sensations such as hyperalgesia and allodynia. The diagnosis and treatment of neuropathic pain in rheumatoid arthritis patients is important because neuropathic pain does not decrease with traditional disease-modifying anti-inflammatory drugs used in rheumatoid arthritis and causes a decrease in quality of life. In order to distinguish neuropathic pain from chronic pain, methods based on defining the quality of pain are often used. Some of these methods are; The McGill Pain Questionnaire, PainDETECT, RAPS (Rheumatoid Arthritis Pain Scale), VAS (visual analog scale), AIMS (Arthritis Impact Scale), EQ-5D (European Quality of Life Assessment and Pain Assessment Questionnaire). The diagnosis and treatment of neuropathic pain in rheumatoid arthritis patients is important because neuropathic pain does not decrease with traditional disease-modifying anti-inflammatory drugs used in rheumatoid arthritis and causes a decrease in quality of life.

NCT ID: NCT04706208 Completed - Clinical trials for Spinal Cord Injuries

Identifying Body Awareness-related Brain Network Changes During Cognitive Multisensory Rehabilitation for Reduced Neuropathic Pain in People With Spinal Cord Injury

Start date: September 1, 2020
Phase: N/A
Study type: Interventional

Many adults with spinal cord injury (SCI) suffer from long-term debilitating neuropathic pain. Available treatments, including opioids, are ineffective at eliminating this pain. Based on preliminary data from Dr Morse and from Dr Van de Winckel, we have demonstrated that brain areas that are important for body awareness and pain perception (parietal operculum, insula) have weaker brain connectivity in adults with spinal cord injury than in able-bodied healthy adults and that Cognitive Multisensory Rehabilitation (CMR) can restore these networks. This study uses a cross-over study for adults with SCI and a comparison of baseline outcomes in adults with SCI vs able-bodied healthy adults to address two aims: AIM 1: Determine baseline differences in resting-state and task-based fMRI activation and connectivity in adults with SCI compared to able-bodied healthy controls. AIM 2: Identify changes in brain activation and connectivity, as well as behavioral outcomes in pain and body awareness in adults with SCI after CMR versus standard of care.

NCT ID: NCT04674631 Completed - Neuropathic Pain Clinical Trials

The Effect of Neuropathic Pain in Patients With Combat-related Extremity Injury

Start date: July 1, 2020
Phase:
Study type: Observational

It has been suggested that veterans with chronic pain might be at increased risk for the development of depression, anxiety and post-traumatic stress disorder. To date, most of the published studies have focused on chronic pain as a whole, and there are limited studies examining association of neuropathic pain with psychological comorbidity and quality of life.Combat related extremity injury significantly influences the patients' quality of life and psychological state. In this context, the purpose of this study is to illustrate to what extent neuropathic pain influences the quality of life, depression level and sleep quality of patients with combat-related extremity injury.

NCT ID: NCT04650074 Completed - Neuropathic Pain Clinical Trials

Effectiveness of Ketamine Administered by Mesotherapy in Complex Regional Pain Syndrome Type 1 (CRPS1)

MESO-SDRC
Start date: November 5, 2021
Phase: Phase 2/Phase 3
Study type: Interventional

Complex Regional Pain Syndrome type 1 (CRPS1) is a disabling pain syndrome. Its definitive treatment has not been established and the results of current treatments are often unsatisfactory. The prognosis is difficult to establish because the vast majority of CRPS regresses within a few weeks. However, some forms are hyperalgesic with a major chronic painful picture, very debilitating and responding poorly to treatments with possible permanent sequelae. The management of CRPS remains difficult and unsatisfactory and is symptomatic, multidimensional and multidisciplinary involving medical, paramedical and socio-professional workers. The priority therapeutic objectives are analgesia, maintenance or gain of joint range and maintenance or restoration of motor functions. This treatment is not the subject of a consensus and its implementation is sometimes the responsibility of specialized centers such as "pain relief" centers or even Physical Medicine and Rehabilitation (MPR) structures. Previous studies using ketamine as a treatment for CRPS1 show encouraging results with a decrease in neuropathic pain. Ketamine is a low dose pain reliever. Ketamine has been studied as an adjuvant for the treatment of chronic pain, particularly neuropathic pain. The results suggest that ketamine decreases pain intensity and reduces opioid reliance when used as an adjunct to chronic and acute pain. Ketamine is believed to have a greater analgesic effect in patients with CRPS1 compared to other chronic pain syndromes. In these studies, ketamine was used intravenously, subcutaneously, orally, intranasally, or topically. Mesotherapy allows microdose local treatment to be carried out limiting side effects, ensuring compliance and easy to implement. The injected solutions often contain a local anesthetic (procaine or lidocaine). It allows better local tolerance from the start of treatment. In addition, through its vasodilator effect on the microcirculation, it increases the effectiveness and tolerance of other injected products. There are no studies using ketamine administrated by mesotherapy. Based on the scientific literature, there are good reasons to believe that this treatment could be effective on the neuropathic pain of CRPS1 and well tolerated.

NCT ID: NCT04648085 Completed - Dry Eye Clinical Trials

Effect of Trigeminal Nerve Stimulation on Corneal Nerves and Chronic Ocular Pain

Start date: February 3, 2021
Phase: N/A
Study type: Interventional

Individuals with dry eye tend to present with ocular pain which persists despite the use of topical treatment. This could be secondary to somatosensory impairment attributable to neuropathic pain. The purpose of this study is to evaluate the effect of trigeminal nerve stimulation (TNS) on corneal nerves and chronic ocular pain in patients with dry eye.

NCT ID: NCT04603066 Completed - Neuropathic Pain Clinical Trials

Tariquidar-ondansetron Combination in Neuropathic Pain

Start date: January 31, 2021
Phase: Phase 1/Phase 2
Study type: Interventional

Prospective, randomized, double-blind, placebo controlled, cross-over proof of concept study. To determine the pharmacokinetics and tolerability of co-administration of 5-HT3R antagonist ondansetron with a P-glycoprotein inhibitor tariquidar, in patients with neuropathic pain.

NCT ID: NCT04578574 Completed - Neuropathic Pain Clinical Trials

Effects of Bodily Illusion and tDCS on SCI-related Neuropathic Pain

Start date: January 13, 2021
Phase: N/A
Study type: Interventional

The purpose of this study is to evaluate the effect of a combination of two procedures: (1) Bodily Illusion (BI) and (2) Transcranial direct electrical stimulation (tDCS) on neuropathic pain.

NCT ID: NCT04538170 Completed - Neuropathic Pain Clinical Trials

Neuropathic Pain After Orchidectomy and Sex Reassignment Surgery

NPASRS
Start date: September 1, 2014
Phase:
Study type: Observational

Phantom pain is associated with cortical reorganization after amputation. This phenomenon should not play a role in transsexual women, since the cortical representation of the male sex organs is presumably altered. The study investigates the incidence of phantom pain in this patient population. For this study the following question should be investigated: Is the incidence of phantom pain and local chronic postsurgical pain lower in sex reassignment surgery from male to female compared to inguinal tumor orchidectomy?

NCT ID: NCT04508127 Completed - Neuropathic Pain Clinical Trials

A Feasibility Study to Investigate the Dynamic Brain Imaging in Patients Following SCS- DRG

Start date: March 1, 2016
Phase:
Study type: Observational

Targeted SCS is a standard and safe interventional pain procedure that is offered to patients with intractable neuropathic pain for their symptomatic relief. The known and reported complications include technical failure to perform the procedure, failure to gain symptomatic relief, trauma to nerve, and infection. These risks are very low in incidence and part of any interventional pain procedure in the spine. PET-CT scan involves insertion of a cannula and administration of a dye (FDG) as a contrast in a patient who has been fasted for at least 6 hours. The procedure is lengthy and can take up to 2 to 3 hours. This includes a 30-60 minute resting time following the injection of contrast. The actual scan itself takes up to 30 minutes. There is a small chance of pain and redness at the injection site. Allergic reaction to the radio-contrast is rare and is usually mild. Patients with known allergy to FDG will not be recruited in the study. Some patients can feel claustrophobic at the time of the scan which can make them feel anxious. The PET-CT scan involves radiation with associated risks as detailed in the previous section. All these risks will be explained to the patients at the time of the informed consent.