Using brain stimulation to improve language recovery in stroke patients with aphasia

TACS for the Recovery of Phonological STM After Stroke

Not applicable Interventional Medical College of Wisconsin · NCT06048159

This study is testing whether a new brain stimulation technique can help stroke survivors with aphasia improve their language skills when combined with speech therapy.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years and up
SexAll
SponsorMedical College of Wisconsin Academic / other
Locations1 site (Milwaukee, Wisconsin)
Trial IDNCT06048159 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of high-definition transcranial alternating current stimulation (HD-tACS) on language recovery in stroke survivors suffering from aphasia. Aphasia, often resulting from left hemisphere stroke, impairs communication abilities, and current treatments offer limited benefits. The study employs a double-blinded, sham-controlled design, combining HD-tACS with targeted language therapy to enhance phonological short-term memory. By restoring neural oscillatory activity and improving brain connectivity, the study aims to provide a novel approach to aphasia rehabilitation.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older who have experienced a left hemisphere stroke and are fluent in English.

Not a fit: Patients with severe cognitive impairments, major psychiatric diseases, or contraindications to brain stimulation methods will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly enhance language recovery and communication abilities in stroke patients with aphasia.

How similar studies have performed: While the use of tACS is relatively novel, preliminary studies suggest potential benefits in enhancing cognitive functions, indicating a promising avenue for aphasia treatment.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosed with left hemisphere stroke/aphasia
* Consent date \>= 1 month after stroke onset
* Fluent in English
* 18 years of age or older

Exclusion Criteria:

* Severe cognitive, auditory or visual impairments that would preclude cognitive and language testing
* Presence of major untreated or unstable psychiatric disease
* A chronic medical condition that is not treated or is unstable
* The presence of cardiac stimulators or pacemakers
* Contraindications to MRI or tACS, e.g. patients with metallic implants, and/or history of skull fractures, pregnancy, skin diseases
* History of ongoing or unmanaged seizures
* History of dyslexia or other developmental learning disabilities

Where this trial is running

Milwaukee, Wisconsin

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions StrokeAphasia
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.