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Exploring the Feasibility of an Exercise and Noninvasive Brain Stimulation Intervention in Breast Cancer Survivors

7 de maio de 2026 atualizado por: Florida Atlantic University
The purpose of this study is to assess the feasibility of a 4-week intervention combining exercise and transcranial alternating current stimulation (Ex+tACS) in breast cancer survivors who report experiencing cancer-related cognitive impairment. Feasibility will be assessed by measuring participant retention, adherence, satisfaction with the intervention, and safety. The researchers will also examine pre-to-post intervention changes in attention, executive function, working memory, perceived cognitive function, and physical function before, after, and four weeks post intervention completion in the Ex+tACS group compared to a control group who will receive exercise and a placebo tACS condition (CON).

Visão geral do estudo

Descrição detalhada

Breast cancer is one of the most common forms of cancer among women in the United States. Although advances in cancer treatments have led to improved survival rates, breast cancer survivors must contend with the negative side effects from the cancer and its treatments. One of the most common and highly distressing treatment side effects is cancer-related cognitive impairment (CRCI), which is characterized by losses in memory, attention, processing speed, and executive function, which make daily tasks such as recalling information, organizing daily routines, concentrating, and multitasking more challenging. Findings from previous studies support aerobic exercise training as an effective strategy for improving cognitive function. In addition, non-invasive brain stimulation (NIBS), a technique in which electrodes are applied to the skin to noninvasively stimulate specific regions of the brain, has also been found to be a safe and effective approach for improving cognitive outcomes. Among various NIBS techniques, transcranial alternating current stimulation (tACS), which delivers current to the brain in an alternating pattern, may be a promising strategy for improving cognitive outcomes. Few studies have explored these approaches in breast cancer survivors, and to our knowledge, the combination of exercise and tACS (Ex+tACS) has not been explored.

This study will assess the feasibility of a 4-week Ex+tACS intervention in breast cancer survivors who report cancer-related cognitive impairment. Researchers will also examine changes in attention, executive function, working memory, perceived cognitive function, and physical function before, after, and four weeks post intervention completion in the Ex+tACS group compared to a control group who will receive exercise and a placebo tACS condition (CON).

Tipo de estudo

Intervencional

Inscrição (Estimado)

40

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

  • Nome: Ashley L Artese, PhD
  • Número de telefone: 856-534-8926
  • E-mail: aartese@fau.edu

Locais de estudo

    • Florida
      • Boca Raton, Florida, Estados Unidos, 33431
        • Recrutamento
        • Florida Atlantic University
        • Contato:
          • Ashley L Artese, PhD
          • Número de telefone: 856-534-8926
          • E-mail: aartese@fau.edu

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

  • Adulto
  • Adulto mais velho

Aceita Voluntários Saudáveis

Não

Descrição

Inclusion Criteria:

  • Breast cancer survivors (≥18 years) will be eligible to participate if the following inclusion criteria is met:
  • Diagnosed non-metastatic breast cancer (stages 0-3)
  • Completed primary breast cancer treatment (surgery, chemotherapy, radiation) for at least 3 months
  • Self-reported cognitive impairment after cancer treatment

Exclusion Criteria:

  • Current participation in aerobic exercise for ≥60 min/wk
  • Contraindication or impairment that precludes the potential participant from exercise as defined by the American College of Sports Medicine
  • The presence of serious medical illnesses, metal implants, previous brain trauma, epilepsy or history of seizures, previous surgery to the head or spinal cord, or skin problems at the forehead area where the tACS electrodes will be applied
  • Uncontrolled cardiovascular disease
  • Functional impairments or physical condition that would make exercise unsafe
  • Metastatic cancer or diagnosis of a different cancer (excluding melanoma) within the past 5 years
  • Contraindication to exercise a defined by the American College of Sports Medicine

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: Cuidados de suporte
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Solteiro

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Intervention Arm
The Exercise + transcranial alternating current stimulation (Ex+tACS) group will complete a four-week intervention consisting of 3 days/week of 30 minutes of aerobic exercise on a treadmill at a sustained moderate intensity, immediately followed by 15 min of tACS. During tACS, 6Hz alternating current stimulation will be administered to participants' prefrontal cortex (forehead region) using a tACS while the participant completes the AX Continuous Performance Test (AX-CPT).
The Ex+tACS group will complete a four-week intervention consisting of 3 days/week of 30 minutes of aerobic exercise on a treadmill at a sustained moderate intensity, immediately followed by 15 min of tACS while completing the AX Continuous Performance Test (AX-CPT).
Comparador Falso: Control
The Sham Comparator group will complete 30 minutes of aerobic exercise on the treadmill followed by the Sustained Attention-Continuous Performance Task (AX-CPT) with a sham transcranial alternating current stimulation (tACS) condition. The same procedures will be followed regarding the tACS, but stimulation will only last one minute, ramping up and down at the beginning and end of the 15-minute period, simulating the periodic tingling sensation that are reported with tACS.
The Control (CON) group will complete 30 minutes of aerobic exercise on the treadmill followed by the Sustained Attention-Continuous Performance Task (AX-CPT) with a sham tACS condition. After each session, both the EX+tACS and control participants will complete a questionnaire regarding experience with tACS.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Adherence
Prazo: From baseline to the end of the 4-week intervention
Adherence will be calculated based on the percentage of prescribed sessions attended and percentage of participants who complete the prescribed exercise and tACS sessions.
From baseline to the end of the 4-week intervention
Retention
Prazo: From baseline to the end of the 4-week intervention
Retention will be determined by the number of enrolled breast cancer survivors who participate in the four-week intervention and complete post assessments.
From baseline to the end of the 4-week intervention
Acceptability
Prazo: From baseline to the end of the 4-week intervention
Acceptability will be determined by the percentage of participants who report satisfaction with the intervention.
From baseline to the end of the 4-week intervention
Safety (Adverse Events)
Prazo: From baseline to the end of the 4-week intervention
Safety (<5% of serious adverse events) will be determined by the percentage of participants experiencing a serious adverse event related to the program.
From baseline to the end of the 4-week intervention

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Sustained attention
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in sustained attention, measured by performance on the AX-Continuous Performance Test (AX-CPT).
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Executive function
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in executive function, measured by performance (time) on the Trail Making Test Part A (TMT-A) and Part B (TMT-B).
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Inhibitory control
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in inhibitory control, measured by performance on the Flanker Compatibility Task.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Working Memory
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in working memory, measured by performance on the N-back and Backwards Counting tasks.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Subjective Cognition
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in subjective cognition, measured by the Functional Assessment Cancer Therapy-Cognition (FACT-COG)
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Physical Function
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in lower body physical function, measured by the 30-second chair stand.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Cardiorespiratory endurance
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in cardiorespiratory fitness, measured by the six-minute walk test.
Baseline, within 2 weeks following the intervention, and 4-week follow-up

Outras medidas de resultado

Medida de resultado
Descrição da medida
Prazo
Body fat percentage
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in body fat percentage measured via bioelectrical impedance analysis using the BIA-ACC (BioTekna) device.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Learning and Memory
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in learning and memory, assessed by the California Verbal Learning Test.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Quality of Life (FACT-B)
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in quality of life, measured by the Functional Assessment of Cancer Therapy - Breast. Scores range from 0-148, with higher scores indicating better quality of life.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Fatigue (FACIT-F)
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in fatigue, measured by the Functional Assessment of Chronic Illness Therapy-Fatigue. Scores range from 0-52, with higher scores indicating less fatigue.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Perceived exercise benefits and barriers
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in perceived benefits and barriers to exercise, measured by the Exercise Benefits/Barriers Scale (EBBS). Benefit scores range from 29-116, with higher scores indicating greater perceived benefits. Barrier scores range from 14-56, with higher scores indicating greater perceived barriers.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Physical Function (Short Physical Performance Battery)
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in physical function, assessed using the Short Physical Performance Battery. Scores range from 0-12, with higher scores indicating better physical function.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Muscle Power
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in lower body muscle power, measured by a single sit-to-stand using the Tendo Power Analyzer.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Grip strength
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in grip strength, measured using a hand-held grip strength dynamometer
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Upper body physical function
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in upper body physical function, measured by the 30-second arm curl test.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Fall Risk
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in fall risk, measured by the Falls Efficacy Scale. Scores range from 16-64, with higher scores indicating greater fall risk.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Physical Activity
Prazo: Baseline, within 2 weeks following the intervention, and 4-week follow-up
Researchers will assess pre- to post-intervention changes in physical activity, measured by an accelerometer.
Baseline, within 2 weeks following the intervention, and 4-week follow-up
Skeletal Muscle
Prazo: Baseline, within two weeks following the intervention, 4-week follow-up
Description: Researchers will assess pre- to post-intervention changes in skeletal muscle (kg) measured via bioelectrical impedance analysis using the BIA-ACC (BioTekna) device
Baseline, within two weeks following the intervention, 4-week follow-up

Colaboradores e Investigadores

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Publicações e links úteis

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Publicações Gerais

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)

7 de janeiro de 2026

Conclusão Primária (Estimado)

1 de janeiro de 2027

Conclusão do estudo (Estimado)

1 de janeiro de 2027

Datas de inscrição no estudo

Enviado pela primeira vez

30 de janeiro de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

7 de maio de 2026

Primeira postagem (Real)

14 de maio de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

14 de maio de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

7 de maio de 2026

Última verificação

1 de maio de 2026

Mais Informações

Termos relacionados a este estudo

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

SIM

Descrição do plano IPD

The dissemination plan includes sharing de-identified data for external researchers.

Prazo de Compartilhamento de IPD

IPD will be available at the time of manuscript acceptance and publishing. A published manuscript is planned for 2027.

Critérios de acesso de compartilhamento IPD

Any external researcher will be able to access de-identified, non, PHI, individual participant data as part of the journal's supplementary information.

Tipo de informação de suporte de compartilhamento de IPD

  • PROTOCOLO DE ESTUDO
  • CIF

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

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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