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Tratamento de Lesão Cerebral Traumática Leve com Estimulação Transcraniana de Corrente Contínua de Alta Definição (HDtDCS-TBI)

24 de setembro de 2026 atualizado por: John Hart, Jr., The University of Texas at Dallas

Tratamento de déficits de recuperação verbal em traumatismo cranioencefálico leve com estimulação transcraniana por corrente contínua de alta definição

The purpose of the study is to test whether low level electric stimulation, called transcranial Direct Current Stimulation (tDCS), on the part of the brain (i.e., presupplementary motor area) thought to aid in memory will improve verbal retrieval in military veteran participants with histories of traumatic brain injuries. The primary outcome measures are neuropsychological assessments of verbal retrieval, and the secondary measures are neuropsychological assessments of other cognitive abilities and electroencephalography (EEG) measures. Additionally, the study will examine the degree to which baseline assessments of cognition and concussion history predict responses to treatment over time, both on assessments administered within the intervention period and at follow-up.

Visão geral do estudo

Descrição detalhada

Using two treatment arms, the study will examine improvement of verbal retrieval and other cognitive deficits associated with remote traumatic brain injury by comparing (1) 1 milliamp transcranial direct current stimulation (tDCS) active treatment applied to presupplementary motor area for 20 minutes over 15 sessions to (2) sham tDCS following the same schedule. Additionally, after completing the initial active or sham treatment and 3-month follow-up testing sessions, selected participants will be invited back for newly assigned treatment conditions, 20 minutes over 15 sessions and will be and re-evaluated at 2- and 3-months follow-up testing sessions.

Veterans with histories of traumatic brain injuries and observed cognitive deficits will be randomly assigned to one of the two treatment arms (and re-assigned for the second round of intervention, as described above). Primary outcome verbal retrieval measures, secondary neuropsychological and electroencephalography (EEG) measures, and prescreening assessments for study concussion history and contraindications for treatment will be collected prior to being assigned to a treatment arm (i.e., baseline).

Primary outcome verbal retrieval measures and secondary neuropsychological and electroencephalography (EEG) measures will be collected after treatment sessions 5, 10, and 15 and two times following treatment competition (i.e., 2-months and 3-months). For participants selected for the second round of intervention, primary outcome verbal memory measures and secondary neuropsychological and electroencephalography (EEG) measures will be collected again after treatment sessions 5, 10, and 15 and two times following competition of the second treatment (i.e., 2-months and 3-months).

Tipo de estudo

Intervencional

Inscrição (Estimado)

136

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Estude backup de contato

Locais de estudo

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos a 75 anos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

Inclusion Criteria: Participants are to be between the ages of 18-75, have previously served in the US armed services, and have had a traumatic brain injury that has led to a verbal retrieval deficit based on neuropsychological testing criteria. Traumatic brain injury must be in the mild to moderate range based on evaluation, including, the Ohio State TBI Identification Method (administered by our research group). You must be fluent in speaking and reading English.

Exclusion Criteria: Exclusion criteria include a history of a psychological or neurological disorder, including, dementia of any type, epilepsy or other seizure disorders, severe traumatic brain injury, post-traumatic stress disorder, brain tumor, present drug abuse, stroke, blood vessel abnormalities in the brain, Parkinson's disease, Huntington's disease, or multiple sclerosis. Additionally, exclusion criteria include inability to give informed consent; cranial implants or skull defects that affect tDCS administration; and use of medications that interact with or potentially interact with tDCS effects, including, anti-convulsants, amphetamines, L-dopa, carbamazepine, sulpiride, pergolide, lorazepam, rivastigmine, dextromethorphan, D-cycloserine, flunarizine, ropinirole, or citalopram.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Triplo

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Transcranial direct current stimulation

20 minutes of 1 milliamp transcranial direct current stimulation to presupplementary motor area for 15 sessions

Transcranial direct current stimulation will be delivered via a Neuroelectrics Starstim tES. Stimulation will consist of 1 milliamp stimulation, with anodal stimulation delivered at electrode Fz (International 10/10 System for electroencephalography electrode placement) and electrodes F7, FP1, FP2, and F8 as returns. All electrodes are 1 cm diameter Ag/AgCl electrodes and make contact with the scalp via connective gel. Stimulation will linearly ramp up from 0 milliamps to 1 milliamp over 60 seconds, then remain at 1 milliamp of stimulation over 20 minutes, and finally ramping down at to 0 milliamps over 60 seconds.

Outros nomes:
  • tDCS
  • 1 miliamperes tDCS
  • TDCS de alta definição
  • Estimulador transcraniano de corrente contínua de alta definição, Neuroelectrics Starstim tES, SN E20200930-10
Comparador Falso: Sham transcranial direct current stimulation

20 minutes of sham transcranial direct current stimulation to presupplementary motor area for 15 sessions

Sham transcranial direct current stimulation will be delivered via a Neuroelectrics Starstim tES. The sham setup will consist of anodal electrode Fz (International 10/10 System for electroencephalography electrode placement) and electrodes F7, FP1, FP2, and F8 as returns. All electrodes are 1 cm diameter Ag/AgCl electrodes and make contact with the scalp via connective gel. Stimulation will linearly ramp up from 0 milliamps to 1 milliamp over 60 seconds, ramp down to 0 milliamps over 60 seconds and then be left off for 20 minutes.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Controlled Oral Word Association Test
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change on the Control Word Association Test from baseline to 3-months. Metric: Number of Correct Items Generated

Benton, L.A., Hamsher, K., & Sivan, A.B., (1994). Multilingual aphasia examination. Iowa City: AJA Associates.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Controlled Oral Word Association Test
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change on the Control Word Association Test from baseline to 2-months. Metric: Number of Correct Items Generated

Benton, L.A., Hamsher, K., & Sivan, A.B., (1994). Multilingual aphasia examination. Iowa City: AJA Associates.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment in Category Fluency
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change in Category Fluency from baseline to 3-months. Metric: Number of Correct Items Generated

Benton, L.A., Hamsher, K., & Sivan, A.B., (1994). Multilingual aphasia examination. Iowa City: AJA Associates.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment in Category Fluency
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change in Category Fluency from baseline to 2-months. Metric: Number of Correct Items Generated

Benton, L.A., Hamsher, K., & Sivan, A.B., (1994). Multilingual aphasia examination. Iowa City: AJA Associates.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Semantic Object Retrieval Test
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change in Semantic Object Retrieval Test from baseline to 3-months. Metric: Number of Correct Retrievals

Kaplan, E., Goodglass, H., & Weintraub, S., (1983). Boston Naming Test (2nd ed.). Lea & Febiger: Philadelphia.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Semantic Object Retrieval Test
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change in Semantic Object Retrieval Test from baseline to 2-months. Metric: Number of Correct Retrievals

Kaplan, E., Goodglass, H., & Weintraub, S., (1983). Boston Naming Test (2nd ed.). Lea & Febiger: Philadelphia.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Boston Naming Test
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change in Boston Naming Test from baseline to 3-months. Metric: Number of Correct Names Retrieved

Kraut, M.A., Cherry, B., Pitcock, C.B., Anand, R., Li, J. Vestal, L., Henderson, V.W., and Hart, J. Jr. (2007). The Semantic Object Retrieval Test (SORT) in amnestic cognitive impairment. Cogn. Behav. Neurol. 20, 62- 67.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Boston Naming Test
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change in Boston Naming Test from baseline to 2-months. Metric: Number of Correct Names Retrieved

Kraut, M.A., Cherry, B., Pitcock, C.B., Anand, R., Li, J. Vestal, L., Henderson, V.W., and Hart, J. Jr. (2007). The Semantic Object Retrieval Test (SORT) in amnestic cognitive impairment. Cogn. Behav. Neurol. 20, 62- 67.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on California Verbal Learning Test
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change in California Verbal Learning Test from baseline to 3-months. Metric: Number of Correct Retrievals

Delis DC, Kramer JH, Kaplan E, Ober BA. (2017). California verbal learning test (3rd Ed.). Pearson Publishing: San Antonio, TX.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on California Verbal Learning Test
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change in California Verbal Learning Test from baseline to 2-months. Metric: Number of Correct Retrievals

Delis DC, Kramer JH, Kaplan E, Ober BA. (2017). California verbal learning test (3rd Ed.). Pearson Publishing: San Antonio, TX.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Trail Making Test (Part A)
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change on the Trail Making Test (Part A) from baseline to 3-months. Metric: Time to Solution

Reitan, R.M., (1958). Validity of the Trail Making Test as an indicator of organic brain damage. Percept. Motor Skill., 8, 271-276.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Trail Making Test (Part A)
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change on the Trail Making Test (Part A) from baseline to 2-months. Metric: Time to Solution

Reitan, R.M., (1958). Validity of the Trail Making Test as an indicator of organic brain damage. Percept. Motor Skill., 8, 271-276.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Trail Making Test (Part B)
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change on the Trail Making Test (Part B) from baseline to 3-months. Metric: Time to Solution

Reitan, R.M., (1958). Validity of the Trail Making Test as an indicator of organic brain damage. Percept. Motor Skill., 8, 271-276.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Trail Making Test (Part B)
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change on the Trail Making Test (Part B) from baseline to 2-months. Metric: Time to Solution

Reitan, R.M., (1958). Validity of the Trail Making Test as an indicator of organic brain damage. Percept. Motor Skill., 8, 271-276.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Delis Kaplan Color Word Interference Test
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change on the Delis Kaplan Color Word Interference Test from baseline to 3-months. Metric: Time to Name Items

Delis, D.C., Kaplan, E., & Kramer, J.H., (2001). Delis-Kaplan Executive Function System. San Antonio, TX: The Psychological Corporation.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Delis Kaplan Color Word Interference Test
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change on the Trail Making Test (Part B) from baseline to 2-months. Metric: Time to Name Items

Reitan, R.M., (1958). Validity of the Trail Making Test as an indicator of organic brain damage. Percept. Motor Skill., 8, 271-276.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Digit Span Forward
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change in Digit Span Forward from baseline to 3-months. Metric: Memory Span

Wechsler, D., (2008). Wechsler adult intelligence scale-Fourth Edition (WAIS-IV). San Antonio, TX: NCS Pearson.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Digit Span Forward
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change in Digit Span Forward from baseline to 2-months. Metric: Memory Span

Wechsler, D., (2008). Wechsler adult intelligence scale-Fourth Edition (WAIS-IV). San Antonio, TX: NCS Pearson.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Digit Span Backward
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change in Digit Span Backward from baseline to 3-months. Metric: Memory Span

Wechsler, D., (2008). Wechsler adult intelligence scale-Fourth Edition (WAIS-IV). San Antonio, TX: NCS Pearson.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Digit Span Backward
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change in Digit Span Backward from baseline to 2-months. Metric: Memory Span

Wechsler, D., (2008). Wechsler adult intelligence scale-Fourth Edition (WAIS-IV). San Antonio, TX: NCS Pearson.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Rey-Osterrieth Complex Figure Test
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change in Rey-Osterrieth Complex Figure Test scores from baseline to 3-months. Metric: Score

Rey, A. (1941). L'examen psychologique dans les cas d'encéphalopathie traumatique. (Les problems.). [The psychological examination in cases of traumatic encepholopathy. Problems.]. Archives de Psychologie, 28, 215- 285.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Rey-Osterrieth Complex Figure Test
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change in Rey-Osterrieth Complex Figure Test scores from baseline to 2-months. Metric: Score

Rey, A. (1941). L'examen psychologique dans les cas d'encéphalopathie traumatique. (Les problems.). [The psychological examination in cases of traumatic encepholopathy. Problems.]. Archives de Psychologie, 28, 215- 285.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Digit Symbol Substitution Test
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change on the Digit Symbol Substitution Test from baseline to 3-months. Metric: Number of Items

Wechsler, D., (2008). Wechsler adult intelligence scale-Fourth Edition (WAIS-IV). San Antonio, TX: NCS Pearson.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Digit Symbol Substitution Test
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change on the Digit Symbol Substitution Test from baseline to 2-months. Metric: Number of Items

Wechsler, D., (2008). Wechsler adult intelligence scale-Fourth Edition (WAIS-IV). San Antonio, TX: NCS Pearson.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment
Treatment group differences in change from Baseline to 3-months Post-Treatment on the Grooved Pegboard Test
Prazo: Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment

Evaluation of treatment group differences in change on the Grooved Pegboard Test from baseline to 3-months. Metric: Completion Time

Matthews, C.G., and Klove, H. (1964). Instruction manual for the adult neuropsychology test. Madison. Wis: University of Wisconsin Medical School.

Outcome measures will be assessed as change over a period of 17 weeks: Change from baseline to 3-month Post-Treatment
Treatment group differences in change from Baseline to 2-months Post-Treatment on the Grooved Pegboard Test
Prazo: Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Evaluation of treatment group differences in change on the Grooved Pegboard Test from baseline to 2-months. Metric: Completion Time

Matthews, C.G., and Klove, H. (1964). Instruction manual for the adult neuropsychology test. Madison. Wis: University of Wisconsin Medical School.

Outcome measures will be assessed as change over a period of 13 weeks: Change from baseline to 2-month Post-Treatment

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Investigadores

  • Investigador principal: John Hart, MD, The University of Texas at Dallas

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

1 de agosto de 2021

Conclusão Primária (Estimado)

30 de setembro de 2027

Conclusão do estudo (Estimado)

30 de setembro de 2027

Datas de inscrição no estudo

Enviado pela primeira vez

10 de fevereiro de 2021

Enviado pela primeira vez que atendeu aos critérios de CQ

27 de abril de 2021

Primeira postagem (Real)

3 de maio de 2021

Atualizações de registro de estudo

Última Atualização Postada (Real)

29 de setembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

24 de setembro de 2026

Última verificação

1 de setembro de 2026

Mais Informações

Termos relacionados a este estudo

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Sim

produto fabricado e exportado dos EUA

Não

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