View clinical trials related to Painful Diabetic Neuropathy.
Filter by:Painful diabetic neuropathy (pDN) occurs in a subset of diabetic patients, and is characterize by burning, shooting, and electric shock-like pain in the arms and legs. This represents a major health crisis, given the increasing prevalence of pDN and the significant impact it has on quality of life. However, there is limited evidence of effective therapies for pDN pain relief. Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive form of brain stimulation that may be a promising therapy for pDN. Previous research has shown that rTMS reduces neuropathic pain in pDN (1, 2, 3). While this is promising, it is important to note that rTMS is effective for ~50% of patients with neuropathic pain. (4, 5). Recent advancements in rTMS technology have created the opportunity for remarkable strides in the effectiveness of this potential therapy. This new development called controlled pulse parameter TMS (cTMS) increases the magnitude and longevity of TMS-induced effects. Although not tested in chronic pain, cTMS possess the power to make transformative changes in pDN, potentially yielding greater and widespread improvements in pain. The overarching goal of the proposed research is to assess the effects of a 5-day cTMS stimulation protocol on measures of pain and neurological function in individuals with pDN. 1. Kwak S, Choi SG, Chang GS, & Yang MC (2022). Short-term Effect of Repetitive Transcranial Magnetic Stimulation on Diabetic Peripheral Neuropathic Pain. Pain Physician, 25(2), E203-E209. 2. Abdelkader AA, Gohary AME, Mourad HS, & Salmawy DAE (2019). Repetitive tms in treatment of resistant diabetic neuropathic pain. Egyptian Journal of Neurology, Psychiatry and Neurosurgery, 55(1). 3. Onesti E et al. (2013). H-coil repetitive transcranial magnetic stimulation for pain relief in patients with diabetic neuropathy. European Journal of Pain (United Kingdom), 17(9). 4. Attal N et al. (2021). Repetitive transcranial magnetic stimulation for neuropathic pain: a randomized multicentre sham-controlled trial. Brain, 144(11). 65. Dongyang L et al. (2021). Posterior-superior insular deep transcranial magnetic stimulation alleviates peripheral neuropathic pain - A pilot double-blind, randomized cross-over study. Neurophysiologie Clinique, 51(4).
This study primarily seeks to evaluate dysfunction of small blood vessels and their linkage to dysfunction of nerves in people with Type 2 Diabetes. The purpose of this research is to explore some of the underlying pathophysiology of diabetic peripheral neuropathy, particularly painful diabetic peripheral neuropathy. The pain experienced by individuals with painful diabetic peripheral neuropathy is severe and associated with low quality of life. The pain does not typically respond well to pharmacological management. The processes underpinning the sources of pain are poorly understood, consequently only around a third of patients benefit from existing treatments. Some historic research on the sources of pain suggest the retention of the ability to reduce blood flow in small vessels may underpin these pain pathways. This research aims to explore this possibility, looking at the nerve-linked response in small vessels with a flickering light within the eye. Participants will complete three or four questionnaires: one demographic, two to aid with stratifying participants into groups concerning symptoms of neuropathy and an additional questionnaire if participants are stratified to the painful DPN group. A basic neurological examination of the feet will follow. Basic measurements of height, weight and blood pressure will be recorded for each participant. The primary sites of measurement of this small vessel dysfunction will be the eye and the foot investigated in a non-invasive manner. A bright flickering light will be shone into participants eyes, with the reaction of small vessels recorded. Sensors will also be placed on the feet and chest of participants and warmed to ~44C. An image will be taken of participants eyes to measure nerve layer thickness and an area of skin on the forearm will be illuminated to measure for levels of a metabolic marker. A picture of the eye will also be taken to determine nerve layer thickness.
A double-blind, randomized, placebo-controlled, single-center, 12-month phase 2 study designed to assess the safety and efficacy of VM202 as a replacement for opioid analgesics in opioid-tolerant subjects with painful diabetic peripheral neuropathy (DPN).