The Bipolar Depression Electrical Treatment Trial (BETTER): Design, Rationale, and Objectives of a Randomized, Sham-Controlled Trial and Data from the Pilot Study Phase

Background. Bipolar depression (BD) is a prevalent condition, with poor therapeutic options and a high degree of refractoriness. This justifies the development of novel treatment strategies, such as transcranial direct current stimulation (tDCS) that showed promising results in unipolar depression....

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Main Authors: Bernardo de Sampaio Pereira Junior, Gabriel Tortella, Beny Lafer, Paula Nunes, Isabela Martins Benseñor, Paulo Andrade Lotufo, Rodrigo Machado-Vieira, André R. Brunoni
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Neural Plasticity
Online Access:http://dx.doi.org/10.1155/2015/684025
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author Bernardo de Sampaio Pereira Junior
Gabriel Tortella
Beny Lafer
Paula Nunes
Isabela Martins Benseñor
Paulo Andrade Lotufo
Rodrigo Machado-Vieira
André R. Brunoni
author_facet Bernardo de Sampaio Pereira Junior
Gabriel Tortella
Beny Lafer
Paula Nunes
Isabela Martins Benseñor
Paulo Andrade Lotufo
Rodrigo Machado-Vieira
André R. Brunoni
author_sort Bernardo de Sampaio Pereira Junior
collection DOAJ
description Background. Bipolar depression (BD) is a prevalent condition, with poor therapeutic options and a high degree of refractoriness. This justifies the development of novel treatment strategies, such as transcranial direct current stimulation (tDCS) that showed promising results in unipolar depression. Methods. We describe a randomized, sham-controlled, double-blinded trial using tDCS for refractory, acutely symptomatic BD (the bipolar depression electrical treatment trial, BETTER). Sixty patients will be enrolled and assessed with clinical and neuropsychological tests. The primary outcome is change (over time and across groups) in the scores of the Hamilton Depression Rating Scale (17 items). Biological markers such as blood neurotrophins and interleukins, genetic polymorphisms, heart rate variability, and motor cortical excitability will be assessed. Twelve anodal-left/cathodal-right 2 mA tDCS sessions over the dorsolateral prefrontal cortex will be performed in 6 weeks. Results. In the pilot phase, five patients received active tDCS and were double-blindly assessed, two presenting clinical response. TDCS was well-tolerated, with no changes in cognitive scores. Conclusion. This upcoming clinical trial will address the efficacy of tDCS for BD on different degrees of refractoriness. The evaluation of biological markers will also help in understanding the pathophysiology of BD and the mechanisms of action of tDCS.
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spelling doaj-art-a319cb00c5c94646af0ed993414e88812025-02-03T06:00:05ZengWileyNeural Plasticity2090-59041687-54432015-01-01201510.1155/2015/684025684025The Bipolar Depression Electrical Treatment Trial (BETTER): Design, Rationale, and Objectives of a Randomized, Sham-Controlled Trial and Data from the Pilot Study PhaseBernardo de Sampaio Pereira Junior0Gabriel Tortella1Beny Lafer2Paula Nunes3Isabela Martins Benseñor4Paulo Andrade Lotufo5Rodrigo Machado-Vieira6André R. Brunoni7Center for Clinical and Epidemiological Research & Interdisciplinary Center for Applied Neuromodulation (CINA), University Hospital, University of São Paulo, São Paulo, BrazilCenter for Clinical and Epidemiological Research & Interdisciplinary Center for Applied Neuromodulation (CINA), University Hospital, University of São Paulo, São Paulo, BrazilBipolar Disorder Research Program, Department and Institute of Psychiatry, University of São Paulo Medical School, BrazilBipolar Disorder Research Program, Department and Institute of Psychiatry, University of São Paulo Medical School, BrazilCenter for Clinical and Epidemiological Research & Interdisciplinary Center for Applied Neuromodulation (CINA), University Hospital, University of São Paulo, São Paulo, BrazilCenter for Clinical and Epidemiological Research & Interdisciplinary Center for Applied Neuromodulation (CINA), University Hospital, University of São Paulo, São Paulo, BrazilLaboratory of Neuroscience (LIM27), Department and Institute of Psychiatry, University of São Paulo, São Paulo, BrazilCenter for Clinical and Epidemiological Research & Interdisciplinary Center for Applied Neuromodulation (CINA), University Hospital, University of São Paulo, São Paulo, BrazilBackground. Bipolar depression (BD) is a prevalent condition, with poor therapeutic options and a high degree of refractoriness. This justifies the development of novel treatment strategies, such as transcranial direct current stimulation (tDCS) that showed promising results in unipolar depression. Methods. We describe a randomized, sham-controlled, double-blinded trial using tDCS for refractory, acutely symptomatic BD (the bipolar depression electrical treatment trial, BETTER). Sixty patients will be enrolled and assessed with clinical and neuropsychological tests. The primary outcome is change (over time and across groups) in the scores of the Hamilton Depression Rating Scale (17 items). Biological markers such as blood neurotrophins and interleukins, genetic polymorphisms, heart rate variability, and motor cortical excitability will be assessed. Twelve anodal-left/cathodal-right 2 mA tDCS sessions over the dorsolateral prefrontal cortex will be performed in 6 weeks. Results. In the pilot phase, five patients received active tDCS and were double-blindly assessed, two presenting clinical response. TDCS was well-tolerated, with no changes in cognitive scores. Conclusion. This upcoming clinical trial will address the efficacy of tDCS for BD on different degrees of refractoriness. The evaluation of biological markers will also help in understanding the pathophysiology of BD and the mechanisms of action of tDCS.http://dx.doi.org/10.1155/2015/684025
spellingShingle Bernardo de Sampaio Pereira Junior
Gabriel Tortella
Beny Lafer
Paula Nunes
Isabela Martins Benseñor
Paulo Andrade Lotufo
Rodrigo Machado-Vieira
André R. Brunoni
The Bipolar Depression Electrical Treatment Trial (BETTER): Design, Rationale, and Objectives of a Randomized, Sham-Controlled Trial and Data from the Pilot Study Phase
Neural Plasticity
title The Bipolar Depression Electrical Treatment Trial (BETTER): Design, Rationale, and Objectives of a Randomized, Sham-Controlled Trial and Data from the Pilot Study Phase
title_full The Bipolar Depression Electrical Treatment Trial (BETTER): Design, Rationale, and Objectives of a Randomized, Sham-Controlled Trial and Data from the Pilot Study Phase
title_fullStr The Bipolar Depression Electrical Treatment Trial (BETTER): Design, Rationale, and Objectives of a Randomized, Sham-Controlled Trial and Data from the Pilot Study Phase
title_full_unstemmed The Bipolar Depression Electrical Treatment Trial (BETTER): Design, Rationale, and Objectives of a Randomized, Sham-Controlled Trial and Data from the Pilot Study Phase
title_short The Bipolar Depression Electrical Treatment Trial (BETTER): Design, Rationale, and Objectives of a Randomized, Sham-Controlled Trial and Data from the Pilot Study Phase
title_sort bipolar depression electrical treatment trial better design rationale and objectives of a randomized sham controlled trial and data from the pilot study phase
url http://dx.doi.org/10.1155/2015/684025
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