Melatonin for Neuropathic Pain: Protocol for a Double-blind, Randomized Controlled Trial

BackgroundNeuropathic pain (NP), a complication of several conditions (eg, diabetic neuropathy and varicella zoster), is a common challenging problem, and there is a growing need to develop safe and effective nonopioid treatments. Sleep disturbance is commonly associated with...

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Main Authors: Ian Gilron, Dongsheng Tu, Ronald R Holden, Dwight E Moulin, Scott Duggan, Roumen Milev
Format: Article
Language:English
Published: JMIR Publications 2022-09-01
Series:JMIR Research Protocols
Online Access:https://www.researchprotocols.org/2022/9/e40025
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author Ian Gilron
Dongsheng Tu
Ronald R Holden
Dwight E Moulin
Scott Duggan
Roumen Milev
author_facet Ian Gilron
Dongsheng Tu
Ronald R Holden
Dwight E Moulin
Scott Duggan
Roumen Milev
author_sort Ian Gilron
collection DOAJ
description BackgroundNeuropathic pain (NP), a complication of several conditions (eg, diabetic neuropathy and varicella zoster), is a common challenging problem, and there is a growing need to develop safe and effective nonopioid treatments. Sleep disturbance is commonly associated with NP because pain intensity in NP conditions is often worse at night. The pineal hormone melatonin has been shown to reduce pain in both preclinical and clinical settings, in addition to multiple trials demonstrating efficacy for primary insomnia and delayed sleep phase syndrome. ObjectiveWe propose to conduct a clinical trial to evaluate the efficacy and safety of melatonin for NP. MethodsUsing a double-blind, placebo-controlled, crossover design, 30 adults with NP will be randomly allocated to one of two sequences of treatment with melatonin and placebo. During each of the two treatment periods, participants will take capsules containing melatonin or placebo for 4 weeks, followed by a 7-day washout period. The primary outcome will be mean daily pain intensity (scored 0-10) at maximally tolerated doses (MTDs) during each period. Secondary outcomes, assessed at MTDs, will include global improvement, adverse events, mood, and quality of life. ResultsThis trial was registered in the International Standard Randomized Controlled Trial registry May 4, 2022 (ISRCTN #16215617), attained conditional ethics approval May 9, 2022 (Queen’s University Health Sciences & Affiliated Teaching Hospitals Research Ethics Board protocol number ANAE-387-22), and recruitment is set to start August 2022. ConclusionsThis trial will provide rigorous evidence comparing the efficacy of melatonin to that of placebo in the treatment of NP. Trial RegistrationISRCTN Registry 16215617; https://www.isrctn.com/ISRCTN16215617 International Registered Report Identifier (IRRID)PRR1-10.2196/40025
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spelling doaj.art-6cfebd838458482392f3edb153b916872023-08-28T23:08:38ZengJMIR PublicationsJMIR Research Protocols1929-07482022-09-01119e4002510.2196/40025Melatonin for Neuropathic Pain: Protocol for a Double-blind, Randomized Controlled TrialIan Gilronhttps://orcid.org/0000-0002-5293-8792Dongsheng Tuhttps://orcid.org/0000-0003-4842-2184Ronald R Holdenhttps://orcid.org/0000-0002-9070-2510Dwight E Moulinhttps://orcid.org/0000-0001-9902-2418Scott Dugganhttps://orcid.org/0000-0003-0161-2706Roumen Milevhttps://orcid.org/0000-0001-6884-171X BackgroundNeuropathic pain (NP), a complication of several conditions (eg, diabetic neuropathy and varicella zoster), is a common challenging problem, and there is a growing need to develop safe and effective nonopioid treatments. Sleep disturbance is commonly associated with NP because pain intensity in NP conditions is often worse at night. The pineal hormone melatonin has been shown to reduce pain in both preclinical and clinical settings, in addition to multiple trials demonstrating efficacy for primary insomnia and delayed sleep phase syndrome. ObjectiveWe propose to conduct a clinical trial to evaluate the efficacy and safety of melatonin for NP. MethodsUsing a double-blind, placebo-controlled, crossover design, 30 adults with NP will be randomly allocated to one of two sequences of treatment with melatonin and placebo. During each of the two treatment periods, participants will take capsules containing melatonin or placebo for 4 weeks, followed by a 7-day washout period. The primary outcome will be mean daily pain intensity (scored 0-10) at maximally tolerated doses (MTDs) during each period. Secondary outcomes, assessed at MTDs, will include global improvement, adverse events, mood, and quality of life. ResultsThis trial was registered in the International Standard Randomized Controlled Trial registry May 4, 2022 (ISRCTN #16215617), attained conditional ethics approval May 9, 2022 (Queen’s University Health Sciences & Affiliated Teaching Hospitals Research Ethics Board protocol number ANAE-387-22), and recruitment is set to start August 2022. ConclusionsThis trial will provide rigorous evidence comparing the efficacy of melatonin to that of placebo in the treatment of NP. Trial RegistrationISRCTN Registry 16215617; https://www.isrctn.com/ISRCTN16215617 International Registered Report Identifier (IRRID)PRR1-10.2196/40025https://www.researchprotocols.org/2022/9/e40025
spellingShingle Ian Gilron
Dongsheng Tu
Ronald R Holden
Dwight E Moulin
Scott Duggan
Roumen Milev
Melatonin for Neuropathic Pain: Protocol for a Double-blind, Randomized Controlled Trial
JMIR Research Protocols
title Melatonin for Neuropathic Pain: Protocol for a Double-blind, Randomized Controlled Trial
title_full Melatonin for Neuropathic Pain: Protocol for a Double-blind, Randomized Controlled Trial
title_fullStr Melatonin for Neuropathic Pain: Protocol for a Double-blind, Randomized Controlled Trial
title_full_unstemmed Melatonin for Neuropathic Pain: Protocol for a Double-blind, Randomized Controlled Trial
title_short Melatonin for Neuropathic Pain: Protocol for a Double-blind, Randomized Controlled Trial
title_sort melatonin for neuropathic pain protocol for a double blind randomized controlled trial
url https://www.researchprotocols.org/2022/9/e40025
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