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Goldstein LH, Stone J, Reuber M, Landau S, Robinson EJ, Carson A, Medford N, Chalder T. Reflections on the CODES trial for adults with dissociative seizures: what we found and considerations for future studies. BMJ Neurol Open 2024; 6:e000659. [PMID: 38860230 PMCID: PMC11163627 DOI: 10.1136/bmjno-2024-000659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/21/2024] [Indexed: 06/12/2024] Open
Abstract
The COgnitive behavioural therapy versus standardised medical care for adults with Dissociative non-Epileptic Seizures multicentre randomised controlled trial is the largest, fully-powered study to test the clinical and cost-effectiveness of a psychotherapeutic intervention in this population. We also explored predictors or moderators of outcomes and investigated mechanisms of change in therapy. In this current review of findings, we discuss issues related to the design of the trial and consider the study's nested qualitative studies which were undertaken not only to shed light on the original research questions but to provide insights and recommendations for other researchers in the field of functional neurological disorder. Finally, we consider issues relating to the possible clinical application of our study findings.
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Affiliation(s)
- Laura H Goldstein
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Jon Stone
- Department of Clinical Neuroscience, Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK
| | - Markus Reuber
- Academic Neurology Unit, Royal Hallamshire Hospital, The University of Sheffield, Sheffield, UK
| | - Sabine Landau
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Emily J Robinson
- School of Population Health and Environmental Sciences, King's College London, London, UK
- Research Data and Statistics Unit, Royal Marsden Clinical Trials Unit, The Royal Marsden NHS Foundation Trust, Surrey, UK
| | - Alan Carson
- Department of Clinical Neuroscience, Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK
| | - Nick Medford
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Trudie Chalder
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
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Higson L, O'Brien TJ, Rayner G, Alpitsis R, Winton-Brown T. Content or context? A study protocol for a three-arm parallel randomised controlled trial of R e-PROGRAM, a brief internet-based intervention for patients with functional seizures. BMJ Open 2023; 13:e072835. [PMID: 37793938 PMCID: PMC10551981 DOI: 10.1136/bmjopen-2023-072835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 08/29/2023] [Indexed: 10/06/2023] Open
Abstract
INTRODUCTION Functional seizures (FS) mimic epilepsy but are not caused by epileptic electrical activity in the brain and are believed to have a psychological origin. There is a well-documented gap between the needs of patients with FS and available therapeutic resources. While there is potential for reducing seizure burden in patients via psychosocial intervention, there is no evidence-based care pathway or consistent availability of treatment and no effective pharmacological treatment. The objective of this study is to investigate the clinical efficacy and tolerability of a novel internet-based intervention in reducing seizure frequency. METHODS AND ANALYSIS A 3-arm parallel randomised controlled trial will compare the efficacy of brief guided internet-based therapy to unguided internet-based therapy and to standard care. Approximately 100 participants with FS will be recruited, with diagnostic criteria based on gold standard video-electroencephalogram (v-EEG) monitoring; patients will be randomly assigned to one of the three study arms. The primary study outcome will be FS frequency at 6 weeks and at follow-up (6 and 12 months) compared with baseline. Seizure frequency will be modelled using Poisson regression. Secondary outcomes include psychosocial functioning, healthcare resource usage, anxiety, depression, somatisation and life impact. Between-group differences will be evaluated using analysis of variance. Analysis of covariance will estimate within-group changes on secondary outcomes. Cognitive and psychological factors will be used as predictors of seizure reduction in exploratory analyses. A qualitative survey using a semi-structured interview will use thematic analyses to explore participants' treatment experiences, their impressions of FS management and perceived mechanisms for change. ETHICS AND DISSEMINATION The study was approved by the Human Research and Ethics Committee of the Alfred Hospital Human Research Ethics Committee as part of the Australian Multisite Ethics approval system. Results of the study will be presented at national and international conferences and published in peer-reviewed journals. TRIAL REGISTRATION NUMBER ACTRN12622000262707.
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Affiliation(s)
- Lana Higson
- Department of Neuroscience, Monash University, Melbourne, Victoria, Australia
- Department of Neurology, Alfred Hospital, Melbourne, Victoria, Australia
| | - Terence J O'Brien
- Department of Neuroscience, Monash University, Melbourne, Victoria, Australia
- Department of Neurology, Alfred Hospital, Melbourne, Victoria, Australia
| | - Genevieve Rayner
- Department of Neurology, Alfred Hospital, Melbourne, Victoria, Australia
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Rubina Alpitsis
- Department of Neuroscience, Monash University, Melbourne, Victoria, Australia
- Department of Neurology, Alfred Hospital, Melbourne, Victoria, Australia
| | - Toby Winton-Brown
- Department of Neuroscience, Monash University, Melbourne, Victoria, Australia
- Alfred Hospital, Melbourne, Victoria, Australia
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O'Connor PJ, Reuber M. 'It's both challenging and probably the most rewarding work' - A qualitative study of psychological therapy provider's experiences of working with people with dissociative seizures. Epilepsy Behav 2021; 122:108156. [PMID: 34175664 DOI: 10.1016/j.yebeh.2021.108156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 10/21/2022]
Abstract
Limited research exists exploring the experiences of psychological therapy providers (PTPs) working with people with dissociative seizures (DS). PTPs play a key role in the treatment of DS, yet sit at the end of a long, often ineffective process of diagnosis and waiting before treatment can commence. This qualitative study was undertaken involving 12 PTPs from specialist DS services throughout England and Scotland. Semi-structured interviews were carried out, using thematic analysis to evaluate the data. Four key themes were identified, "neurological to psychological", "putting the person with DS at the center", "treatment process", and "issues and impact of therapy with patients with DS". The findings showed that an unclear and uncomprehended diagnosis, together with waiting times had a detrimental impact on patients at the starting point of therapy. People with DS were perceived as a heterogeneous group whose treatment needed to be individualized, using the PTPs' full 'toolkit' of modalities and techniques, with a focus on improving quality of life, rather than reducing seizures. The study highlighted the complexity for PTPs of working with major but also accumulated minor traumas, compounded by the impact of DS on both PTPs and treatment. The desire of PTPs to be totally patient-focused meant that individualized treatment was considered essential and meant that participants were doubtful about the possibility of compiling an effective manual for the psychological treatment for DS.
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Affiliation(s)
- Peri Jane O'Connor
- School of Health and Community Studies, Leeds Beckett University, City Campus, Leeds LS1 3HE, United Kingdom.
| | - Markus Reuber
- Academic Neurology Unit, University of Sheffield, Royal Hallamshire Hospital, Glossop Road, Sheffield S10 2JF, United Kingdom.
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Goldstein LH, Robinson EJ, Pilecka I, Perdue I, Mosweu I, Read J, Jordan H, Wilkinson M, Rawlings G, Feehan SJ, Callaghan H, Day E, Purnell J, Baldellou Lopez M, Brockington A, Burness C, Poole NA, Eastwood C, Moore M, Mellers JD, Stone J, Carson A, Medford N, Reuber M, McCrone P, Murray J, Richardson MP, Landau S, Chalder T. Cognitive-behavioural therapy compared with standardised medical care for adults with dissociative non-epileptic seizures: the CODES RCT. Health Technol Assess 2021; 25:1-144. [PMID: 34196269 DOI: 10.3310/hta25430] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Dissociative (non-epileptic) seizures are potentially treatable by psychotherapeutic interventions; however, the evidence for this is limited. OBJECTIVES To evaluate the clinical effectiveness and cost-effectiveness of dissociative seizure-specific cognitive-behavioural therapy for adults with dissociative seizures. DESIGN This was a pragmatic, multicentre, parallel-arm, mixed-methods randomised controlled trial. SETTING This took place in 27 UK-based neurology/epilepsy services, 17 liaison psychiatry/neuropsychiatry services and 18 cognitive-behavioural therapy services. PARTICIPANTS Adults with dissociative seizures in the previous 8 weeks and no epileptic seizures in the previous year and meeting other eligibility criteria were recruited to a screening phase from neurology/epilepsy services between October 2014 and February 2017. After psychiatric assessment around 3 months later, eligible and interested participants were randomised between January 2015 and May 2017. INTERVENTIONS Standardised medical care consisted of input from neurologists and psychiatrists who were given guidance regarding diagnosis delivery and management; they provided patients with information booklets. The intervention consisted of 12 dissociative seizure-specific cognitive-behavioural therapy 1-hour sessions (plus one booster session) that were delivered by trained therapists, in addition to standardised medical care. MAIN OUTCOME MEASURES The primary outcome was monthly seizure frequency at 12 months post randomisation. The secondary outcomes were aspects of seizure occurrence, quality of life, mood, anxiety, distress, symptoms, psychosocial functioning, clinical global change, satisfaction with treatment, quality-adjusted life-years, costs and cost-effectiveness. RESULTS In total, 698 patients were screened and 368 were randomised (standardised medical care alone, n = 182; and cognitive-behavioural therapy plus standardised medical care, n = 186). Primary outcome data were obtained for 85% of participants. An intention-to-treat analysis with multivariate imputation by chained equations revealed no significant between-group difference in dissociative seizure frequency at 12 months [standardised medical care: median of seven dissociative seizures (interquartile range 1-35 dissociative seizures); cognitive-behavioural therapy and standardised medical care: median of four dissociative seizures (interquartile range 0-20 dissociative seizures); incidence rate ratio 0.78, 95% confidence interval 0.56 to 1.09; p = 0.144]. Of the 16 secondary outcomes analysed, nine were significantly better in the arm receiving cognitive-behavioural therapy at a p-value < 0.05, including the following at a p-value ≤ 0.001: the longest dissociative seizure-free period in months 7-12 inclusive post randomisation (incidence rate ratio 1.64, 95% confidence interval 1.22 to 2.20; p = 0.001); better psychosocial functioning (Work and Social Adjustment Scale, standardised treatment effect -0.39, 95% confidence interval -0.61 to -0.18; p < 0.001); greater self-rated and clinician-rated clinical improvement (self-rated: standardised treatment effect 0.39, 95% confidence interval 0.16 to 0.62; p = 0.001; clinician rated: standardised treatment effect 0.37, 95% confidence interval 0.17 to 0.57; p < 0.001); and satisfaction with treatment (standardised treatment effect 0.50, 95% confidence interval 0.27 to 0.73; p < 0.001). Rates of adverse events were similar across arms. Cognitive-behavioural therapy plus standardised medical care produced 0.0152 more quality-adjusted life-years (95% confidence interval -0.0106 to 0.0392 quality-adjusted life-years) than standardised medical care alone. The incremental cost-effectiveness ratio (cost per quality-adjusted life-year) for cognitive-behavioural therapy plus standardised medical care versus standardised medical care alone based on the EuroQol-5 Dimensions, five-level version, and imputed data was £120,658. In sensitivity analyses, incremental cost-effectiveness ratios ranged between £85,724 and £206,067. Qualitative and quantitative process evaluations highlighted useful study components, the importance of clinical experience in treating patients with dissociative seizures and potential benefits of our multidisciplinary care pathway. LIMITATIONS Unlike outcome assessors, participants and clinicians were not blinded to the interventions. CONCLUSIONS There was no significant additional benefit of dissociative seizure-specific cognitive-behavioural therapy in reducing dissociative seizure frequency, and cost-effectiveness over standardised medical care was low. However, this large, adequately powered, multicentre randomised controlled trial highlights benefits of adjunctive dissociative seizure-specific cognitive-behavioural therapy for several clinical outcomes, with no evidence of greater harm from dissociative seizure-specific cognitive-behavioural therapy. FUTURE WORK Examination of moderators and mediators of outcome. TRIAL REGISTRATION Current Controlled Trials ISRCTN05681227 and ClinicalTrials.gov NCT02325544. FUNDING This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 25, No. 43. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Laura H Goldstein
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Emily J Robinson
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.,School of Population Health and Environmental Sciences, King's College London, London, UK
| | - Izabela Pilecka
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Iain Perdue
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Iris Mosweu
- King's Health Economics, King's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Julie Read
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Harriet Jordan
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Matthew Wilkinson
- Canterbury Christ Church University, Salamons Institute for Applied Psychology, Tunbridge Wells, UK.,South London and Maudsley NHS Foundation Trust, London, UK
| | - Gregg Rawlings
- School of Clinical Psychology, University of Sheffield, Sheffield, UK
| | - Sarah J Feehan
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Hannah Callaghan
- Department of Clinical Neuroscience, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Elana Day
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - James Purnell
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Maria Baldellou Lopez
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Alice Brockington
- Department of Neurology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | | | - Norman A Poole
- Department of Neuropsychiatry, St George's Hospital, South West London and St George's NHS Mental Health NHS Trust, London, UK
| | - Carole Eastwood
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Michele Moore
- Centre for Social Justice and Global Responsibility, School of Law and Social Sciences, London South Bank University, London, UK
| | | | - Jon Stone
- Department of Clinical Neuroscience, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Alan Carson
- Department of Clinical Neuroscience, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Nick Medford
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Markus Reuber
- Academic Neurology Unit, Royal Hallamshire Hospital, University of Sheffield, Sheffield, UK
| | - Paul McCrone
- King's Health Economics, King's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Joanna Murray
- Department of Health Services & Population Research, Institute of Psychiatry,Psychology and Neuroscience, King's College London, London, UK
| | - Mark P Richardson
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Sabine Landau
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Trudie Chalder
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
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Saxena A, Godena E, Maggio J, Perez DL. Towards an Outpatient Model of Care for Motor Functional Neurological Disorders: A Neuropsychiatric Perspective. Neuropsychiatr Dis Treat 2020; 16:2119-2134. [PMID: 32982250 PMCID: PMC7509337 DOI: 10.2147/ndt.s247119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 08/26/2020] [Indexed: 12/17/2022] Open
Abstract
Functional neurological disorder (FND), a condition at the intersection of neurology and psychiatry, is a common and disabling outpatient referral to neurology and neuropsychiatry clinics. In this perspective article, we focus on the motor spectrum of FND (mFND), including individuals with functional movement disorders (FND-movt), functional limb weakness/paresis (FND-par) and functional [psychogenic non-epileptic/dissociative] seizures (FND-seiz). Over the past several decades, there have been dedicated efforts within the neurologic and psychiatric communities to create "rule-in" diagnostic criteria, as well as thoughtful approaches to the clinical interview, delivery of the diagnosis and the development of a patient-centered treatment plan. These advances allow the promotion of good clinical practices in the outpatient assessment and management of mFND. Informed by the literature and our prior clinical experiences, we provide suggestions on how to evaluate individuals with suspected functional motor symptoms - including conducting sensitive psychiatric and psychosocial screenings. Additional sections discuss common "rule-in" neurological examination and semiologic signs of motor FND, as well as approaches to deliver the diagnosis and formulate a treatment plan based on individual patient needs. To aid the development of shared (partially overlapping) expertise that catalyzes an interdisciplinary approach to mFND, the use of physiotherapy for therapeutic motor retraining and cognitive behavioral therapy to examine relationships between symptoms, thoughts, behaviors and emotions are also discussed. Additional clinical research is needed to further refine and operationalize the assessment and management of mFND, across clinics, healthcare settings and countries.
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Affiliation(s)
- Aneeta Saxena
- Functional Neurological Disorder Clinical and Research Program, Cognitive Behavioral Neurology Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Epilepsy Division, Department of Neurology, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA
| | - Ellen Godena
- Functional Neurological Disorder Clinical and Research Program, Cognitive Behavioral Neurology Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Julie Maggio
- Functional Neurological Disorder Clinical and Research Program, Cognitive Behavioral Neurology Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Physical Therapy, Massachusetts General Hospital, Boston, MA, USA
| | - David L Perez
- Functional Neurological Disorder Clinical and Research Program, Cognitive Behavioral Neurology Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Division of Neuropsychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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