tDCS Intervention in Breast Cancer Survivors With and Without Obesity Reporting Cognitive Impairment

The goal of this intervention is to investigate whether transcranial Direct Current Stimulation (tDCS) can alleviate Cancer-Related Cognitive Impairment (CRCI) in breast cancer survivors, as measured by changes in brain structures and cognitive performance. To assess the efficacy of tDCS, the investigators will compare outcomes between participants receiving active stimulation and those receiving sham stimulation (a placebo condition where participants believe they are receiving stimulation, but are not). Participants will: * Undergo a baseline MRI session * Receive either active or sham tDCS for six weeks * Undergo a follow-up MRI session * Complete cognitive tests and respond to psychosocial questionnaires before, during, and after the tDCS intervention

NCT Number	NCT07112521
Lead Sponsor	University of Helsinki
Conditions	Breast Cancer Survivor, Obesity, Overweight
Enrollment	40 participants
Start Date	2025-09-01
Primary Completion	2027-01 (estimated)
Study Completion	2027-01 (estimated)
Updated on ClinicalTrials.gov	2025-09-02