Estimulação Transcraniana por Corrente Contínua Multialvo para Depressão Comórbida e Dor Crónica: Um Ensaio Multicêntrico Randomizado Controlado
Estimulação Elétrica Transcraniana para Depressão e Dor Comórbidas: Do Desenvolvimento Tecnológico à Tradução Clínica num Ensaio Multicêntrico
Visão geral do estudo
Status
Status
Condições
Condições
Intervenção / Tratamento
Intervenção / Tratamento
Tipo de estudo
Tipo de estudo
Inscrição (Estimado)
Inscrição
Estágio
Estágio
- Não aplicável
Contactos e Locais
Contato de estudo
Contato de estudo
- Nome: jianhua Chen
- Número de telefone: (+86) 18017311011
- E-mail: jianhua.chen@smhc.org.cn
Locais de estudo
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Shanghai Municipality
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Shanghai, Shanghai Municipality, China, 200072
- Recrutamento
- Shanghai Tenth People's Hospital
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Contato:
- enzhao Cong
- Número de telefone: congenzhao@163.com
- E-mail: congenzhao@163.com
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Shanghai, Shanghai Municipality, China, 200030
- Recrutamento
- Shanghai Mental Health Center
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Contato:
- jianhua Chen
- Número de telefone: (+86) 18017311011
- E-mail: jianhua.chen@smhc.org.cn
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Contato:
- haoyun Tang
- Número de telefone: (+86) 18117197217
- E-mail: tanghy0809@163.com
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Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
Critérios de Inclusão:
- Idade entre 18 e 65 anos;
- Preencher os critérios de diagnóstico para um episódio depressivo de acordo com a CID-11, com sintomas depressivos atuais de leves a moderados (pontuação HAMD-24 ≥8 e ≤34);
- Relatar dor persistente com duração ≥3 meses e pontuar ≥4 no item 5 do Inventário Breve de Dor (BPI);
- Manter um plano de tratamento antidepressivo e psicológico estável (incluindo dosagem, tipo de medicamento ou abordagem terapêutica) durante pelo menos quatro semanas antes da inscrição;
- Destro, com audição normal, visão normal ou visão corrigida;
- Capaz de fornecer voluntariamente consentimento informado por escrito para participar no estudo e disposto e capaz de cumprir todos os procedimentos do estudo.
Critérios de Exclusão:
- Diagnosticado com outros transtornos psiquiátricos, incluindo transtornos do espectro da esquizofrenia, transtorno bipolar I (devido ao risco potencial de episódios maníacos e contraindicação de lítio ou anticonvulsivantes), transtornos de ansiedade primários, depressão associada a doença somática grave, etc.
- Ideiação suicida ativa, definida como pontuação de 4 no item 3 do HAMD-24.
- Depressão grave ou resistente ao tratamento (pontuação HAMD-24 ≥35, com episódio depressivo atual com duração de pelo menos 2 anos ou falha em responder a dois ou mais tratamentos antidepressivos durante o episódio atual).
- Transtorno por uso de substâncias nos últimos 3 meses.
- Experiência de dor maligna devido a síndrome de dor oncológica, dor visceral (ex.: dor gástrica) ou dor referida (ex.: dor nas costas devido a pancreatite).
- Doenças neurológicas associadas a anomalias estruturais cerebrais (ex.: traumatismo cranioencefálico, acidente vascular cerebral recente, tumor cerebral).
- Ter sido submetido a tratamentos de neuromodulação nos últimos 3 meses, incluindo terapia eletroconvulsiva (MECT), estimulação magnética transcraniana repetitiva (rTMS) ou estimulação elétrica transcraniana (tES).
- Contraindicações para estimulação elétrica transcraniana (ex.: implantes metálicos intracranianos, pacemaker cardíaco, implante coclear, lesões cutâneas nos locais de estimulação, história pessoal ou familiar de epilepsia).
- Uso atual ou nos últimos 1 mês de medicamentos que afetam a excitabilidade do sistema nervoso central ou a dor, como anticonvulsivantes, lítio, opioides, anti-inflamatórios não esteroides e antipsicóticos. O uso ocasional conforme necessário de paracetamol como medicação de resgate é permitido, mas deve ser documentado em detalhe no diário do estudo.
- Sinais de demência ou outro comprometimento cognitivo grave (pontuação MoCA <17).
- Doenças somáticas graves ou instáveis, incluindo mas não limitadas a: doenças neurológicas (ex.: epilepsia, acidente vascular cerebral, enxaqueca, histórico de cirurgia craniana); doenças cardiovasculares (ex.: hipertensão não controlada, insuficiência cardíaca, arritmia, enfarte do miocárdio); doenças respiratórias (ex.: síndrome da apneia do sono grave); malignidade ou estado de imunocomprometimento; diabetes não controlada (glicemia em jejum >12 mmol/L).
- Gravidez ou lactação.
- Participação simultânea noutro ensaio clínico, participação em qualquer ensaio clínico nos últimos 90 dias, ou participação planeada noutro ensaio durante o período do estudo.
- Quaisquer contraindicações para ressonância magnética (ex.: implantes metálicos, claustrofobia, deficiências respiratórias ou motoras).
- Incapacidade de cooperar com as avaliações do estudo.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Triplo
Número de braços
Armas e Intervenções
Grupo de Participantes / BraçoGrupo de Participantes / Braço |
Intervenção / TratamentoIntervenção / Tratamento |
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Experimental: tDCS
Participants receive active tDCS.
The anodal electrode is placed over the left dorsolateral prefrontal cortex (F3), and the cathodal electrode is placed over the right dorsolateral prefrontal cortex (F4).
A constant current of 2 mA is applied for 40 minutes per session, with a 30-second ramp-up and ramp-down period.
The intervention is administered once daily for 2 weeks (total of 10 sessions).
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Participants receive active tDCS.
The anodal electrode (5 × 5 cm) is placed over the left dorsolateral prefrontal cortex (F3), and the cathodal electrode (5 × 7 cm) is placed over the right dorsolateral prefrontal cortex (F4).
A constant current of 2 mA is applied for 40 minutes per session, with a 30-second ramp-up and ramp-down period.
The intervention is administered once daily for 2 weeks (total of 10 sessions).
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Experimental: alpha-tACS
Participants receive active alpha-tACS.
Two electrodes are placed over F3 and F4.
A sinusoidal alternating current at 10 Hz frequency (alpha band) is applied 1 mA (zero-to-peak) at the F3 and F4 electrodes.
Stimulation duration is 40 minutes per session, including 30-second ramp-up and ramp-down periods.
The intervention is administered once daily, 5 days per week, for 2 weeks (total of 10 sessions).
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Participants receive active alpha-tACS.
Two electrodes are placed over F3 and F4.
A sinusoidal alternating current at 10 Hz frequency (alpha band) is applied 1 mA (zero-to-peak) at the F3 and F4 electrodes.
Stimulation duration is 40 minutes per session, including 30-second ramp-up and ramp-down periods.
The intervention is administered once daily, 5 days per week, for 2 weeks (total of 10 sessions).
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Comparador Falso: Sham
Sham group using the same electrode montage at F3/F4.
To maintain blinding, the stimulator delivers current only during the initial 30-second ramp-up period, followed by an immediate ramp-down, and a final 30-second ramp-up at the end of the stimulation session.
This mimics the initial sensation of active stimulation without delivering sufficient current to induce neural modulation.
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Sham group using the same electrode montage at F3/F4.
To maintain blinding, the stimulator delivers current only during the initial 30-second ramp-up period, followed by an immediate ramp-down, and a final 30-second ramp-up at the end of the stimulation session.
This mimics the initial sensation of active stimulation without delivering sufficient current to induce neural modulation.
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Experimental: Exploratory Open-Label tACS Group
Participants in this exploratory arm receive the same active tACS intervention as Arm alpha-tACS, with identical stimulation parameters (e.g., 1 mA, 40 minutes, 10 Hz, targeting the bilateral dorsolateral prefrontal cortex (DLPFC)).
This arm is open-label (unblinded): participants and study personnel are aware of the treatment assignment.
It serves as a supplementary exploratory cohort to explore preliminary neural oscillation entrainment effects of tACS.
Unlike Arms 1-3, this arm is neither randomized nor blinded.
Data from this arm will be analyzed separately and are not included in the primary confirmatory hypothesis testing of the randomized controlled trial.
The overall study remains double-blind for the three-arm RCT component, with this exploratory arm conducted as an ancillary cohort.
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Participants receive active alpha-tACS.
Two electrodes are placed over F3 and F4.
A sinusoidal alternating current at 10 Hz frequency (alpha band) is applied 1 mA (zero-to-peak) at the F3 and F4 electrodes.
Stimulation duration is 40 minutes per session, including 30-second ramp-up and ramp-down periods.
The intervention is administered once daily, 5 days per week, for 2 weeks (total of 10 sessions).
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O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Proportion of Participants Achieving MCID on BPI Pain Intensity Subscale
Prazo: At 1 week (mid-intervention), 2 weeks (end of intervention), and 6 weeks (follow-up) post-baseline
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Description: The BPI is a validated self-administered questionnaire that assesses the severity of pain and its impact on daily functioning. The pain intensity subscale consists of four items rating pain at its "worst," "least," "average," and "current" (right now). Each item is rated on a 0 to 10 numeric rating scale. Higher scores mean a worse outcome. The Minimal Clinically Important Difference (MCID) is defined as a reduction of ≥ 1 point from baseline in the BPI pain intensity score. The outcome is the proportion of participants in each group who achieve this MCID threshold at each follow-up time point. |
At 1 week (mid-intervention), 2 weeks (end of intervention), and 6 weeks (follow-up) post-baseline
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Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Percentage Reduction from Baseline in HAMD-17 Total Score
Prazo: At 1 week (mid-intervention), 2 weeks (end of intervention), and 6 weeks (follow-up) post-baseline
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The HAMD-17 is a 17-item clinician-rated scale assessing depression severity. Items are rated on 3- or 5-point scales, with total scores ranging from 0 to 52. Higher scores mean a worse outcome (greater depression severity). The outcome is the percentage reduction in HAMD-17 total score from baseline at each follow-up time point, calculated using the formula: [(Baseline score - Follow-up score) / Baseline score] × 100% A positive percentage indicates improvement (reduction in depressive symptoms). |
At 1 week (mid-intervention), 2 weeks (end of intervention), and 6 weeks (follow-up) post-baseline
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Change from Baseline in HAMD-17 Total Score
Prazo: At 1 week (mid-intervention), 2 weeks (post-intervention), and 6 weeks (follow-up)
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The Hamilton Depression Rating Scale (HAMD-17) is a 17-item clinician-rated scale assessing depression severity.
Items are rated on 3- or 5-point scales, with total scores ranging from 0 to 52.
Higher scores indicate greater depression severity (worse outcome).
The outcome is the absolute change in the total score from baseline at each follow-up time point, calculated as: [(Baseline score) - (Follow-up score)].
A positive change value indicates improvement (reduction in depressive symptoms).
No pre-defined clinically meaningful threshold is applied to this continuous outcome; it is reported as the mean absolute change per group.
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At 1 week (mid-intervention), 2 weeks (post-intervention), and 6 weeks (follow-up)
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Change from Baseline in Pain Catastrophizing Scale (PCS) Total Score
Prazo: At 1 week (mid-intervention), 2 weeks (end of intervention), and 6 weeks (follow-up) post-baseline
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The Pain Catastrophizing Scale (PCS) is a 13-item self-reported questionnaire.
Each item is rated on a 5-point Likert scale from 0 (not at all) to 4 (all the time), with total scores ranging from 0 to 52.
Higher scores indicate higher levels of pain catastrophizing (worse outcome).
The outcome is the absolute change in the total score from baseline at each follow-up time point, calculated as: [(Baseline score) - (Follow-up score)].
A positive change value indicates improvement (reduction in pain catastrophizing).
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At 1 week (mid-intervention), 2 weeks (end of intervention), and 6 weeks (follow-up) post-baseline
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Change from Baseline in Generalized Anxiety Disorder Scale-7 (GAD-7) Total Score
Prazo: At 1 week (mid-intervention), 2 weeks (end of intervention), and 6 weeks (follow-up) post-baseline
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The GAD-7 is a 7-item self-report scale (0-21, higher scores = worse outcome) assessing anxiety symptoms over the past two weeks.
The outcome is the absolute change in the total score from baseline at each follow-up time point, calculated as: [(Baseline score) - (Follow-up score)].
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At 1 week (mid-intervention), 2 weeks (end of intervention), and 6 weeks (follow-up) post-baseline
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Change from Baseline in Clinical Global Impression (CGI) Total Score
Prazo: At 1 week (mid-intervention), 2 weeks (post-intervention), and 6 weeks (follow-up)
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The Clinical Global Impression (CGI) scale consists of two clinician-rated subscales assessing overall treatment response: CGI-Severity (CGI-S): Rates the severity of the patient's illness on a 7-point scale from 1 (normal, not at all ill) to 7 (among the most extremely ill patients). Higher scores mean a worse outcome. CGI-Improvement (CGI-I): Rates the patient's improvement compared to baseline on a 7-point scale from 1 (very much improved) to 7 (very much worse). This subscale is only assessed at post-baseline time points. Lower scores mean a better outcome (greater improvement). The outcome is the change from baseline in CGI-S score at each follow-up time point, and the CGI-I score at each post-baseline time point. |
At 1 week (mid-intervention), 2 weeks (post-intervention), and 6 weeks (follow-up)
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Change from Baseline in Resting-State Functional Connectivity of the DLPFC at 2 Weeks
Prazo: Baseline and immediately after the 2-week intervention period
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Resting-state functional connectivity (rs-FC) of the dorsolateral prefrontal cortex (DLPFC) is assessed using resting-state functional magnetic resonance imaging (rs-fMRI).
The primary measurement is the change in seed-based functional connectivity strength between the DLPFC and its target network regions (e.g., parietal cortex, default mode network nodes), quantified as Fisher-transformed correlation coefficients (z-values) from a priori defined regions of interest.
Higher z-values indicate stronger positive functional connectivity; lower or negative values indicate weaker or anticorrelated connectivity.
Structural MRI (sMRI) is acquired for co-registration and normalization purposes.
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Baseline and immediately after the 2-week intervention period
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Outras medidas de resultado
Outras medidas de resultado
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Change from Baseline in Brain-Derived Exosome Metabolite Levels
Prazo: From baseline to post-intervention at 2 weeks
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Metabolite profiles are measured using untargeted liquid chromatography-mass spectrometry (LC-MS) in plasma-derived brain-enriched exosomes.
Changes in metabolite profiles from baseline to post-intervention are assessed using multivariate partial least squares discriminant analysis (PLS-DA).
The primary comparison is the separation distance (e.g., Q² or R² values) between baseline and post-intervention clusters, with positive values indicating greater separation between the two time points.
This is an exploratory outcome to identify potential metabolic biomarkers and generate hypotheses related to the mechanisms of tACS/tDCS action.
Results will be reported descriptively and are not part of the primary confirmatory analysis.
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From baseline to post-intervention at 2 weeks
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Change from Baseline in BPI Pain Intensity Score in the Exploratory Open-Label Cohort
Prazo: From baseline to post-intervention at 2 weeks
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This exploratory outcome measures the change from baseline in the BPI Pain Intensity score after 10 sessions of active tACS in the open-label arm.
Data are reported descriptively as individual change values, mean change, standard deviation, and within-group effect size (Cohen's d) .
No formal hypothesis testing is planned; the results will inform effect size estimation for future trial planning.
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From baseline to post-intervention at 2 weeks
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Change from Baseline in HAMD-17 Total Score in the Exploratory Open-Label Cohort
Prazo: From baseline to post-intervention at 2 weeks
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This exploratory outcome measures the change from baseline in HAMD-17 total score after 10 sessions of active tACS in the open-label arm.
Data are reported descriptively as individual change values, mean change, standard deviation, and within-group effect size (Cohen's d).
No formal hypothesis testing is planned; the results will inform effect size estimation for future trial planning.
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From baseline to post-intervention at 2 weeks
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Change from Baseline in GAD-7 Total Score in the Exploratory Open-Label Cohort
Prazo: From baseline to post-intervention at 2 weeks
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This exploratory outcome measures the change from baseline in GAD-7 total score after 10 sessions of active tACS in the open-label arm.
Data are reported descriptively as individual change values, mean change, standard deviation, and within-group effect size (Cohen's d).
No formal hypothesis testing is planned.
GAD-7 scores will also be explored as a covariate in pain outcome analyses.
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From baseline to post-intervention at 2 weeks
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Change from Baseline in Resting-State EEG Power Spectra in the Exploratory Open-Label Cohort
Prazo: Baseline, Day 1 (immediately before and after the 1st tACS session), Day 10 (immediately before and after the 10th tACS session), and Day 11 (on the day after completion of all 10 sessions)
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Resting-state EEG is recorded for 5 minutes with eyes open and 5 minutes with eyes closed using a 64-channel EEG system.
The primary measure is the change from baseline in spectral power (absolute and relative) across frequency bands (delta: 1-4 Hz, theta: 4-8 Hz, alpha: 8-12 Hz, beta: 12-30 Hz, gamma: 30-50 Hz), with a focus on the alpha band (8-12 Hz) due to the 10 Hz tACS intervention.
Data are analyzed descriptively without formal hypothesis testing.
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Baseline, Day 1 (immediately before and after the 1st tACS session), Day 10 (immediately before and after the 10th tACS session), and Day 11 (on the day after completion of all 10 sessions)
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Change from Baseline in Task-State EEG (Event-Related Potentials) in the Exploratory Open-Label Cohort
Prazo: Baseline and Day 11 (on the day after completion of all 10 tACS sessions)
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Task-state EEG is recorded while participants perform a cognitive task (e.g., working memory or attention task).
The primary measure is the change from baseline in event-related potential (ERP) components and task-related spectral power changes (event-related desynchronization/synchronization).
Data are analyzed descriptively without formal hypothesis testing.
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Baseline and Day 11 (on the day after completion of all 10 tACS sessions)
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Change from Baseline in Resting-State EEG Functional Connectivity in the Exploratory Open-Label Cohort
Prazo: Baseline and Day 11 (on the day after completion of all 10 sessions)
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Resting-state EEG functional connectivity is assessed using coherence and phase-locking value (PLV) between electrode pairs, with a focus on the alpha band and the DLPFC region.
Data are analyzed descriptively without formal hypothesis testing.
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Baseline and Day 11 (on the day after completion of all 10 sessions)
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Colaboradores
Colaboradores
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Estimado)
Início do estudo
Conclusão Primária (Estimado)
Conclusão Primária
Conclusão do estudo (Estimado)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Termos MeSH relevantes adicionais
- Dor
- Manifestações Neurológicas
- Condições Patológicas, Sinais e Sintomas
- Sinais e sintomas
- Dor crônica
- Terapêutica
- Disciplinas e atividades comportamentais
- Terapia de estimulação elétrica
- Terapia convulsiva
- Terapias somáticas psiquiátricas
- ElectroShock
- Técnicas psicológicas
- Estimulação de corrente direta transcraniana
Outros números de identificação do estudo
Outros números de identificação do estudo
- 2025-80
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
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