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ClinicalTrials.gov public records Last synced Sep 9, 2026, 11:22 PM EDT

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Showing 1–17 of 17 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: tACS (gamma) Clear all
Recruiting Not applicable Interventional

Causal Role of Delta-beta Coupling for Goal-directed Behavior in Anhedonic Depression

NCT06132581
View directory record Official record
Conditions
Major Depressive Disorder, Anhedonia
Interventions
Delta-beta tACS via the Neurocare Direct Current Stimulator Multi-Channel 4, Theta-gamma tACS via the Neurocare Direct Current Stimulator Multi-Channel 4, Sham tACS via the Neurocare Direct Current Stimulator Multi-Channel 4
Device
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Cross Frequency tACS on Cognitive Control

NCT03800030
View directory record Official record
Conditions
Cognitive Control, Executive Function
Interventions
Theta-gamma tACS, Delta-beta tACS, Sham tACS
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 17, 2020 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Results available

Transcranial Alternating Current Stimulation for Major Depressive Disorder

NCT02339285
View directory record Official record
Conditions
Major Depressive Disorder, MDD
Interventions
tACS (alpha), tACS (gamma)
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 19, 2018 · Synced Sep 9, 2026, 11:22 PM EDT
Recruiting Not applicable Interventional

Effects of Non-invasive Brain Stimulation on Pain Avoidance Behavior in Chronic Pain Patients

NCT07791966
View directory record Official record
Conditions
Complex Regional Pain Syndrome (CRPS)
Interventions
transcranial alternating current stimulation (tACS)
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Results available

Investigating the Causal Role of Prefrontal Control in Decision-making in Patients With Anhedonia

NCT05084924
View directory record Official record
Conditions
Major Depressive Disorder, Anhedonia
Interventions
Cross-frequency transcranial alternating current stimulation via the NeuroConn Direct Current Stimulator Plus
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 24, 2024 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Results available

tACS for Amyloid-β Reduction in Alzheimer's Disease

NCT03290326
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Transcranial Alternating Current Stimulation (tACS)
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
45 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 21, 2022 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Results available

Effect of Modulating Gamma Oscillations Using tACS

NCT03412604
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Transcranial Alternating Current Stimulation (tACS)
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
45 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 21, 2022 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Results available

Non-Invasive Brain Stimulation and Substance Use

NCT03122587
View directory record Official record
Conditions
Substance Use Disorders
Interventions
Transcranial Alternating Current Stimulation at 10 Hz, Transcranial Alternating Current Stimulation at 40 Hz, Active sham transcranial alternating current stimulation
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 5, 2020 · Synced Sep 9, 2026, 11:22 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Modulation of Brain Oscillations Underlying Working Memory

NCT05923606
View directory record Official record
Conditions
Working Memory
Interventions
Active tACS, Placebo tACS
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 35 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Charlestown, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Sep 9, 2026, 11:22 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Feasibility of Home-based tES for Older Adults at Risk of Falling

NCT04732533
View directory record Official record
Conditions
Aging, Accidental Falls
Interventions
tES (transcranial electrical stimulation)
Other
Lead sponsor
Hebrew SeniorLife
Other
Eligibility
60 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Roslindale, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Gamma-tACS on Memory and Sleep

NCT05907707
View directory record Official record
Conditions
Transcranial Alternating Current Stimulation, Aging, Cognitive Decline, Memory, Sleep
Interventions
Gamma transcranial alternating current stimulation, Control transcranial alternating current stimulation, EEG headband, Actigraphy wristband
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
50 Years and older
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Sep 9, 2026, 11:22 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Gamma-Induction in FrontoTemporal Dementia Trial

NCT04425148
View directory record Official record
Conditions
Frontotemporal Dementia
Interventions
Transcranial Alternating Current Stimulation (tACS), Sham Transcranial Alternating Current Stimulation (sham tACS)
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
40 Years to 85 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Memory Functions in Mild Alzheimer's Disease

NCT04785053
View directory record Official record
Conditions
Alzheimer Disease
Interventions
transcranial alternating current stimulation (tACS)
Device
Lead sponsor
Hebrew SeniorLife
Other
Eligibility
21 Years and older
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 25, 2024 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Home-based Brain Stimulation for Memory

NCT04783350
View directory record Official record
Conditions
Alzheimer Disease, Memory Loss
Interventions
Transcranial alternating current stimulation (tACS)
Device
Lead sponsor
Hebrew SeniorLife
Other
Eligibility
55 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 24, 2024 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Phase 1Phase 2 Interventional

Gamma Induction for Alzheimer's Disease

NCT03880240
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
Transcranial Alternating Current Stimulation (tACS), Sham Transcranial Alternating Current Stimulation
Device · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
45 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Results available

Causal Lesion Network Guided Treatment of Bipolar Mania With Transcranial Electrical Stimulation

NCT05445466
View directory record Official record
Conditions
Bipolar Disorder, Schizo Affective Disorder
Interventions
High-Definition Transcranial Electrical-Current Stimulation, High-Definition Transcranial Alternate-Current Stimulation, High-Definition Personalized Beta-Gamma Electrical Stimulation
Device
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 9, 2026, 11:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Feasibility of Gamma Transcranial Alternating Current Stimulation to Reduce Beta-amyloid Load and Improve Memory

NCT04646499
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Transcranial alternating current stimulation
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
55 Years to 80 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 9, 2026, 11:22 PM EDT