NCT07587957

Brief Summary

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).

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable breast-cancer

Timeline
7mo left

Started Jan 2026

Shorter than P25 for not_applicable breast-cancer

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress38%
Jan 2026Jan 2027

Study Start

First participant enrolled

January 7, 2026

Completed
23 days until next milestone

First Submitted

Initial submission to the registry

January 30, 2026

Completed
3 months until next milestone

First Posted

Study publicly available on registry

May 14, 2026

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2027

Last Updated

May 14, 2026

Status Verified

May 1, 2026

Enrollment Period

12 months

First QC Date

January 30, 2026

Last Update Submit

May 7, 2026

Conditions

Keywords

Breast CancerCancer-related cognitive impairmentNon-invasive brain stimulationExercise

Outcome Measures

Primary Outcomes (4)

  • Adherence

    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

    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

    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)

    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

Secondary Outcomes (7)

  • Sustained attention

    Baseline, within 2 weeks following the intervention, and 4-week follow-up

  • Executive function

    Baseline, within 2 weeks following the intervention, and 4-week follow-up

  • Inhibitory control

    Baseline, within 2 weeks following the intervention, and 4-week follow-up

  • Working Memory

    Baseline, within 2 weeks following the intervention, and 4-week follow-up

  • Subjective Cognition

    Baseline, within 2 weeks following the intervention, and 4-week follow-up

  • +2 more secondary outcomes

Other Outcomes (12)

  • Body fat percentage

    Baseline, within 2 weeks following the intervention, and 4-week follow-up

  • Learning and Memory

    Baseline, within 2 weeks following the intervention, and 4-week follow-up

  • Quality of Life (FACT-B)

    Baseline, within 2 weeks following the intervention, and 4-week follow-up

  • +9 more other outcomes

Study Arms (2)

Intervention Arm

EXPERIMENTAL

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).

Behavioral: Exercise + transcranial alternating current stimulation (Ex+tACS)

Control

SHAM COMPARATOR

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.

Behavioral: Control

Interventions

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).

Intervention Arm
ControlBEHAVIORAL

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.

Control

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Florida Atlantic University

Boca Raton, Florida, 33431, United States

RECRUITING

Related Publications (14)

  • Ercoli LM, Castellon SA, Hunter AM, Kwan L, Kahn-Mills BA, Cernin PA, Leuchter AF, Ganz PA. Assessment of the feasibility of a rehabilitation intervention program for breast cancer survivors with cognitive complaints. Brain Imaging Behav. 2013 Dec;7(4):543-53. doi: 10.1007/s11682-013-9237-0.

    PMID: 23955490BACKGROUND
  • Knotkova H, Malamud SC, Cruciani RA. Transcranial direct current stimulation (TDCS) improved cognitive outcomes in a cancer survivor with chemotherapy-induced cognitive difficulties. Brain Stimul. 2014 Sep-Oct;7(5):767-8. doi: 10.1016/j.brs.2014.05.007. Epub 2014 Jun 24. No abstract available.

    PMID: 25085269BACKGROUND
  • Gaynor AM, Pergolizzi D, Alici Y, Ryan E, McNeal K, Ahles TA, Root JC. Impact of transcranial direct current stimulation on sustained attention in breast cancer survivors: Evidence for feasibility, tolerability, and initial efficacy. Brain Stimul. 2020 Jul-Aug;13(4):1108-1116. doi: 10.1016/j.brs.2020.04.013. Epub 2020 Apr 27.

    PMID: 32353419BACKGROUND
  • Ghosh S. Improvement of gait and balance by non-invasive brain stimulation: its use in rehabilitation. Expert Rev Neurother. 2019 Feb;19(2):133-144. doi: 10.1080/14737175.2019.1564042. Epub 2019 Jan 7.

    PMID: 30601080BACKGROUND
  • Ji Y, Ni X, Zheng K, Jiang Y, Ren C, Zhu H, Xiao M, Wang T. Synergistic effects of aerobic exercise and transcranial direct current stimulation on executive function and biomarkers in healthy young adults. Brain Res Bull. 2023 Oct 1;202:110747. doi: 10.1016/j.brainresbull.2023.110747. Epub 2023 Aug 21.

    PMID: 37611879BACKGROUND
  • Capetti B, Conti L, Marzorati C, Grasso R, Ferrucci R, Pravettoni G. The Application of tDCS to Treat Pain and Psychocognitive Symptoms in Cancer Patients: A Scoping Review. Neural Plast. 2024 Apr 13;2024:6344925. doi: 10.1155/2024/6344925. eCollection 2024.

    PMID: 38645612BACKGROUND
  • Artese AL, Zhou X, Tometich DB, Small BJ, Ahles TA, Ahn J, Bethea TN, Breen EC, Cohen HJ, Extermann M, Graham D, Isaacs C, Jim HSL, McDonald BC, Nakamura ZM, Patel SK, Rentscher KE, Root JC, Saykin AJ, Van Dyk K, Zhai W, Carroll JE, Mandelblatt J. Physical activity and cognition: longitudinal findings from the Thinking and Living with Cancer Study. J Natl Cancer Inst. 2024 Dec 1;116(12):2009-2021. doi: 10.1093/jnci/djae182.

    PMID: 39107910BACKGROUND
  • Hartman SJ, Nelson SH, Myers E, Natarajan L, Sears DD, Palmer BW, Weiner LS, Parker BA, Patterson RE. Randomized controlled trial of increasing physical activity on objectively measured and self-reported cognitive functioning among breast cancer survivors: The memory & motion study. Cancer. 2018 Jan 1;124(1):192-202. doi: 10.1002/cncr.30987. Epub 2017 Sep 19.

    PMID: 28926676BACKGROUND
  • Salerno EA, Culakova E, Kleckner AS, Heckler CE, Lin PJ, Matthews CE, Conlin A, Weiselberg L, Mitchell J, Mustian KM, Janelsins MC. Physical Activity Patterns and Relationships With Cognitive Function in Patients With Breast Cancer Before, During, and After Chemotherapy in a Prospective, Nationwide Study. J Clin Oncol. 2021 Oct 10;39(29):3283-3292. doi: 10.1200/JCO.20.03514. Epub 2021 Aug 18.

    PMID: 34406822BACKGROUND
  • Ren X, Wang X, Sun J, Hui Z, Lei S, Wang C, Wang M. Effects of physical exercise on cognitive function of breast cancer survivors receiving chemotherapy: A systematic review of randomized controlled trials. Breast. 2022 Jun;63:113-122. doi: 10.1016/j.breast.2022.03.014. Epub 2022 Mar 28.

    PMID: 35366505BACKGROUND
  • Lee PE, Tierney MC, Wu W, Pritchard KI, Rochon PA. Endocrine treatment-associated cognitive impairment in breast cancer survivors: evidence from published studies. Breast Cancer Res Treat. 2016 Aug;158(3):407-20. doi: 10.1007/s10549-016-3906-9. Epub 2016 Jul 18.

    PMID: 27432418BACKGROUND
  • Kohli S, Griggs JJ, Roscoe JA, Jean-Pierre P, Bole C, Mustian KM, Hill R, Smith K, Gross H, Morrow GR. Self-reported cognitive impairment in patients with cancer. J Oncol Pract. 2007 Mar;3(2):54-9. doi: 10.1200/JOP.0722001.

    PMID: 20859374BACKGROUND
  • Ono M, Ogilvie JM, Wilson JS, Green HJ, Chambers SK, Ownsworth T, Shum DH. A meta-analysis of cognitive impairment and decline associated with adjuvant chemotherapy in women with breast cancer. Front Oncol. 2015 Mar 10;5:59. doi: 10.3389/fonc.2015.00059. eCollection 2015.

    PMID: 25806355BACKGROUND
  • Lindner OC, Phillips B, McCabe MG, Mayes A, Wearden A, Varese F, Talmi D. A meta-analysis of cognitive impairment following adult cancer chemotherapy. Neuropsychology. 2014 Sep;28(5):726-40. doi: 10.1037/neu0000064. Epub 2014 Mar 17.

    PMID: 24635712BACKGROUND

MeSH Terms

Conditions

Breast NeoplasmsMotor Activity

Interventions

ExerciseTranscranial Direct Current Stimulation

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue DiseasesBehavior

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaElectric Stimulation TherapyTherapeuticsConvulsive TherapyPsychiatric Somatic TherapiesBehavioral Disciplines and ActivitiesElectroshockPsychological Techniques

Central Study Contacts

Ashley L Artese, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 30, 2026

First Posted

May 14, 2026

Study Start

January 7, 2026

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

January 1, 2027

Last Updated

May 14, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will share

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

Shared Documents
STUDY PROTOCOL, ICF
Time Frame
IPD will be available at the time of manuscript acceptance and publishing. A published manuscript is planned for 2027.
Access Criteria
Any external researcher will be able to access de-identified, non, PHI, individual participant data as part of the journal's supplementary information.

Locations