84-OR: Responders to Neuropathic Pain Treatment Have Greater Target Engagement of Opioid Receptor Systems: A Resting State Functional Magnetic Resonance Imaging Study in Painful Diabetic Neuropathy

Painful diabetic neuropathy (DN) is a common and distressing complication. New approaches are required to identify novel targets that will serve as a catalyst for future drug discovery programmes. We have demonstrated that responders to neuropathic pain treatment have greater functional connectivity between the insula cortex and the corticolimbic system compared to non-responders. Activity within these networks is mediated by endogenous opioid receptor systems and may hold clues to possible future treatment targets. Methods: 43 painful-DN subjects [responders (VAS Disclosure K.Teh: None. G.P.Sloan: None. I.D.Wilkinson: None. S.Tesfaye: Advisory Panel; Astellas Pharma Inc., Bayer AG, Grünenthal Group, Nevro Corp., Wörwag Pharma GmbH & Co. KG, Speaker's Bureau; Eva Pharma, Pfizer Inc., Viatris Inc. D.Selvarajah: None. Funding National Institute of Health Research EME grant; European Foundation for the Study of Diabetes