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Clinical Trial Summary

In order to address the growing problem of chronic pain management in the UK, a proof of concept/feasibility open label cohort study has been devised to explore the effectiveness of a home-based self-administered non-pharmacological treatment utilising neurofeedback (NFB) training with a headset and tablet-based software application. This study will replicate the intervention from a previous clinical trial conducted in the UK during the Covid-19 lockdown in 2020/21 (NCT04418362) and extend it by examining EEG activity before, during, and after the intervention, alongside outcome measures, including changes in pain intensity and severity, sleep, mood and quality of life. Ten participants will take part in pre-intervention assessments followed by four weeks of EEG baseline readings (5 times per week for 5 minutes), eight weeks of NFB treatment (5 times per week for 40 mins), and 12 weeks of post treatment EEG baselines readings (5 times per week for 5 minutes). Participants will be provided with training and detailed instructions on how to self-administer the NFB treatment using a bespoke headset and tablet-based software application in the comfort of their own homes. Assessments will be conducted at Week 0 (pre-intervention), Week 4 (pre-NFB treatment), Week 12 (post NFB treatment) and at follow up points (Week 16, 20, and 24). It is anticipated this study will provide evidence of the safety, efficacy, reliability and validity of a low-cost non-pharmacological solution to the physical, psychological and social difficulties experienced by individuals with chronic neuropathic pain conducted within the NHS health system.


Clinical Trial Description

This research trial aims to explore the feasibility, safety and effectiveness of an 8-week home-based EEG neurofeedback training programme for a sample of 10 individuals living with severe chronic neuropathic pain within the NHS treatment framework. Neurofeedback training aims to modulate brain EEG activity arising from cortical and sub-cortical areas of the brain associated with pain perception and modulation, and preliminary findings suggest it could be a safe and effective tool in the treatment of chronic pain. Several studies indicate that neurofeedback which aims to upregulate alpha frequency activity over sensorimotor areas of the brain can produce substantial improvements in pain. Recent systematic reviews have called for more robustly designed trials in terms of methodology and feasibility and for changes in EEG activity to be measured and correlated with outcome measure assessments. A recent proof of concept study (Number of participants=16) was conducted in the UK during the Covid pandemic lockdown in 2020/21, to examine the safety and efficacy of a home-based EEG neurofeedback intervention for the management of chronic pain and associated symptoms. This study as referred to below, showed significant improvements in pain, central sensitisation, sleep, mood and quality of life measures for many of the heterogenous group, alongside correlations with changes in EEG activity. Study title: Brain Train for Pain - A home-based neurofeedback intervention to treat the primary and secondary symptoms of chronic pain. REC reference: 20/NW/0209 Protocol number: ED1001033 IRAS project ID: 277936 This trial will utilise an updated version of the equipment (Headset, tablet and software App) and replicate the neurofeedback intervention while expanding on the above study by showing changes in EEG activity during and after the intervention period in a homogenous cohort of participants living with chronic neuropathic pain. Furthermore, it will validate the efficacy of a home-based telehealth intervention for chronic neuropathic pain within the NHS. The primary hypotheses of this study are that: i) 8 weeks of usual care plus active EEG neurofeedback is feasible, safe, and clinically efficacious, resulting in a reduction in perceived pain, and improvement in central sensitisation, mood, sleep, and quality of life measures ii) Baseline EEG resting state activity will differ over three time points - pre, during, and post-intervention. iii) Changes in EEG activity will be correlated with changes in primary and secondary outcome measures The research team will conduct a simple single arm cohort study measuring outcomes before and after an 8-week period of neurofeedback intervention and then throughout a follow up period of 12 weeks. The total time period for each participant will be 23 weeks. All potential applicants will be screening against eligibility criteria. Individuals who meet the eligibility criteria will be invited to take part in this trial. Potential participants will be recruited from a variety of sources including East Kent Hospitals University NHS Foundation Trust (EKHUFT) Out-patient clinics (primarily from the Out-patient clinic of the Chief Investigator), patient association networks (for example: Kent Multiple Sclerosis Therapy Centre and Headway Kent), NHS primary care in East Kent and social media may also be used. Participant time-line - Week 1 - EEG baseline measurements (5 times during the week for 5 mins) and initial outcome measurements Week 2 - Transition week - Research team video based appointment for checking all aspects and further training required and outcome measure assessment. Weeks 3 to 10 - active self administered neurofeedback treatment by participant at home - 5 times per week for 40 minute sessions. Weeks 11 to 23 - EEG baseline measurements (5 times per week for 5 mins). 4 video based follow up appointments with a member of the research team for outcome measurements and checking and confirmation of any potentially reported issues. After completion of the trial, all participants will be provided with a debrief document to enable participants to have an opportunity to discuss anything they would like with the Chief Investigator and also to enable them to have the opportunity of obtaining a brief 1-page summary report of the results of the research after all data and results have been analysed. Statistical Analysis. Study results will first undergo descriptive level statistical analyses. Continuous variables will be reported using mean (standard deviation) or median (interquartile range), depending on the data distribution, and dichotomous and categorical variables will be reported using frequencies (proportion). All data will be analysed following intention-to-treat principles. Secondary per protocol analyses may also be completed. The difference in primary and secondary outcomes will be analysed with linear or general linear mixed effects models, controlling for baseline scores. The research team will report the number of participants with missing scores for each outcome and any imputations will be carried out consistent with the approaches laid out in Gelman and Hill (Ref: Gelman A. and J. Hill, Missing-data Imputation in Data Analysis Using Regression and Multilevel/Hierarchical models. 2006, London, UK. p. 529-544.) The research team will report imputation methods, and will perform a sensitivity analysis, examining effects on the outcomes reported, using the approach recommended by White et al (Ref: White, I.R., et al., Strategy for intention to treat analysis in randomised trials with missing outcome data. BMJ, 2011. 342: p. d40.) For the secondary outcome measures, linear mixed effects models will also be used to assess the relationship between % improvement in Brief Pain Inventory and Visual Analogue Scale for pain average changes 1) in resting EEG alpha frequency band power, relative alpha, hi-beta and theta, pre to post intervention and at all follow up points. Potentially important covariates (e.g. baseline pain intensity, psychological distress, sleep quality) will also be assessed for interaction, collinearity and confounding. With respect to participant safety, discontinuation rates, adverse events and treatment emergent adverse events will all be reported and documented. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05464199
Study type Interventional
Source East Kent Hospitals University NHS Foundation Trust
Contact
Status Completed
Phase Phase 1
Start date October 6, 2022
Completion date August 16, 2023

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