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CompletedNCT05539131Updated Sep 11, 2025Results posted

Demonstration Study of the Effect of the Transcranial Direct Current Stimulation (tDCS) on Depressed Patients

An interventional study of transcranial direct current stimulation (tDCS) in Depression, sponsored by Yonsei University. Completed at 5 sites in South Korea. Open to participants aged 19 Years to 65 Years. Per ClinicalTrials.gov, last updated 2025-09-11.

Sponsored by Yonsei University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
198
Allocation
Randomized
Ages
19 Years to 65 Years
Sex
All
01

Study summary

Purpose of research: It aims to demonstrate the effectiveness of transcranial direct current stimulation (tDCS) in the clinical domain for patients with depression and to optimize home-based e-medication technology.

Read the detailed description

As a home-based clinical empirical study of transcranial direct current stimulation for depressed patients, male and female subjects aged 19 to 65 who meet the criteria for mild and moderate Major depressive disorder (MDD) were enrolled, and real-world data (RWD) was obtained through self-application of transcranial direct current stimulation (tDCS) at home for 6 weeks. This is a study that secures and derives real-world evidence (RWE) that can be applied to clinical practice.

02

Conditions studied

  • Depression

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03

In context

Depression

8,057 studies on the registry are indexed under Depression; 1,641 are open to participants now.

This study's enrollment of 198 is above the median of 84 across 6,720 interventional studies indexed under Depression.

Browse Depression studies →

Lead sponsor

Yonsei University is the lead sponsor of 1,387 studies on the registry; 232 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Male and Female aged 19 to 65 with mild and moderate Major depressive disorder (MDD)

Exclusion criteria

Exclusion Criteria:

  • Those diagnosed with Post-traumatic stress disorder (PTSD), Obsessive compulsive disorder (OCD), bipolar or psychotic major depressive disorder, high suicide risk, Electroencephalography (EEG) and DC stimulation electrode attachment problems (such as scalp deformity, inflammatory response or other dermatological problems), Transcranial direct current stimulation (tDCS) medical device taboos (such as head metal plate insertion), clinical trials that have been inadequate for clinical trials
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
198 participants (actual)

Study arms

  • Active comparator
    active transcranial direct current stimulation (tDCS)

    daily active transcranial direct current stimulation (tDCS) use for 6 weeks

    Device: transcranial direct current stimulation (tDCS)

  • Sham comparator
    sham transcranial direct current stimulation (tDCS)

    daily active transcranial direct current stimulation (tDCS) use for 3 weeks + daily sham transcranial direct current stimulation (tDCS) use for 3 weeks

    Device: transcranial direct current stimulation (tDCS)

Interventions

  • Devicetranscranial direct current stimulation (tDCS)

    Transcranial direct current stimulation (tDCS) suppresses excitability and regulates excitability of neurons by injecting a small amount of current through electrodes attached to the scalp.

06

What researchers measure

Primary outcomes

  1. Change From Baseline in Depressive Symptoms on Beck Depression Inventory-II (BDI-II) at Week 13

    It is a self-report depression scale of 21 questions, which the score range from 0 to 63, and it is required to select a sentence that is appropriate for you among 4 descriptions for each question, and the total score is 0 to 63 points for each question. 0\~13: Minimal 14\~19: Mild depression 20\~28: Moderate depression 29\~63: Severe depression

    Time frame: From Visit1(baseline) to 91 days

  2. Change From Baseline in Depressive Symptoms on Montgomery-Asberg Depression Rating Scale (MADRS) at Week 13

    It evaluates 10 items such as apparent sadness, voluntarily reporting sadness, internal tension, sleep loss, loss of appetite, laziness, loss of feeling, pessimistic thinking, and suicide accident, and the total score is 0 to 60 points per question. It evaluates 10 items such as apparent sadness, voluntarily reporting sadness, internal tension, sleep loss, loss of appetite, laziness, loss of feeling, pessimistic thinking, and suicide accident, and the total score is 0 to 60 points per question. It evaluates 10 items such as apparent sadness, voluntarily reporting sadness, internal tension, sleep loss, loss of appetite, laziness, loss of feeling, pessimistic thinking, and suicide accident, and the total score is 0 to 60 points per question. The total score ranges from 0 to 60 points. 0-6 indicate an absence of symptoms 7-19 Mild depression 20-34 Moderate depression 35-60 Severe depression

    Time frame: From Visit1(baseline) to 91 days

Secondary outcomes

  1. Change From Baseline in Depressive Symptoms on Epidemiologic Studies Depression Scale Revised (CESD-R) at Week 13

    Epidemiologic Studies Depression Scale Revised test was revised to reflect the major depressive illustration diagnostic criteria for the evaluation of depression. Items reflecting anaesthesia, mental exercise delay/anxiety, and suicide accidents have been added, and are measured as 0 to 4 points per question on a self-report 20 question scale. The score ranges from 0\~80 points. . A score equal to or above 16 indicates a person at risk for clinical depression.

    Time frame: From Visit1(baseline) to 91 days

  2. Change From Baseline in Depressive Symptoms on Hamilton Anxiety Scale (HAM-A) at Week 13

    The scale developed by Hamilton consists of 14 questions, and is evaluated by the clinician on a 5-point Likert scale of a semi-structured interview tool. The score ranges from 0\~56 points. Each item is scored on a scale of 0 (not present) to 4 (severe), with total score range of 0-56, where \<17 indi- cates mild severity, 18-24 mild to moderate severity and 25-30 moderate to severe.

    Time frame: From Visit1(baseline) to 91 days

  3. Change From Baseline in Depressive Symptoms on Clinical Global Impression-Severity of Illness Scale (CGI-SI) at Week 13

    It was developed for evaluation of symptom severity, treatment response, and treatment effectiveness in patients with psychiatric disorders (Guy W, 1976) and scored 0-7 points based on the overall impression of the subject's symptoms and treatment response compared to typical patients with the disease. It was developed for evaluation of symptom severity, treatment response, and treatment effectiveness in patients with psychiatric disorders (Guy W, 1976) and scored 0-7 points based on the overall impression of the subject's symptoms and treatment response compared to typical patients with the disease. The score ranges from 0\~7 points. 1: normal, not at all ill 2: borderline mentally ill 3: mildly ill 4: moderately ill 5: markedly ill 6: severely ill 7: extremely ill

    Time frame: From Visit1(baseline) to 91 days

  4. Change From Baseline in Depressive Symptoms on Digit Symbol Substitution Test (DSST) at Week 13

    t is possible to measure high-dimensional cognitive functions such as perceptual organization ability and visual movement coordination, and examine attentional concentration, visual short-term memory, and mental movement speed. A post-marketing survey (PMS) on a new mechanism of anti-depressant (vortioxetine) is used to measure cognitive function before and after the use of the antidepressant in depressed patients. The score is the number of correct number-symbol matches achieved in 90 s. The score ranges from 0\~93 points.

    Time frame: From Visit1(baseline) to 91 days

07

Results

Posted Sep 11, 2025

Participant flow

Participant flow — Overall Study
MilestoneActive (Real)Sham
Started10889
Completed8957
Not completed1932

Outcome measures

PrimaryChange From Baseline in Depressive Symptoms on Beck Depression Inventory-II (BDI-II) at Week 13

It is a self-report depression scale of 21 questions, which the score range from 0 to 63, and it is required to select a sentence that is appropriate for you among 4 descriptions for each question, and the total score is 0 to 63 points for each question. 0\~13: Minimal 14\~19: Mild depression 20\~28: Moderate depression 29\~63: Severe depression

Time frame:
From Visit1(baseline) to 91 days
Reported as:
Mean · units on a scale
Change From Baseline in Depressive Symptoms on Beck Depression Inventory-II (BDI-II) at Week 13
units on a scaleActive (Real)Sham
Visit1(Baseline)30.27 ± 13.2229.62 ± 11.12
Visit2(18~24 days from the baseline)24.96 ± 13.0123.98 ± 13.32
Visit3(39~45 days from the baseline)24.35 ± 13.8522.09 ± 13.66
Visit4(77~91 days from the baseline)22.81 ± 14.920.49 ± 14.46
Statistical analysis
  • Active (Real) vs Sham · Mixed Models Analysis · p = 0.862 (This is p-valu regarding time and group.)
PrimaryChange From Baseline in Depressive Symptoms on Montgomery-Asberg Depression Rating Scale (MADRS) at Week 13

It evaluates 10 items such as apparent sadness, voluntarily reporting sadness, internal tension, sleep loss, loss of appetite, laziness, loss of feeling, pessimistic thinking, and suicide accident, and the total score is 0 to 60 points per question. It evaluates 10 items such as apparent sadness, voluntarily reporting sadness, internal tension, sleep loss, loss of appetite, laziness, loss of feeling, pessimistic thinking, and suicide accident, and the total score is 0 to 60 points per question. It evaluates 10 items such as apparent sadness, voluntarily reporting sadness, internal tension, sleep loss, loss of appetite, laziness, loss of feeling, pessimistic thinking, and suicide accident, and the total score is 0 to 60 points per question. The total score ranges from 0 to 60 points. 0-6 indicate an absence of symptoms 7-19 Mild depression 20-34 Moderate depression 35-60 Severe depression

Time frame:
From Visit1(baseline) to 91 days
Reported as:
Mean · units on a scale
Change From Baseline in Depressive Symptoms on Montgomery-Asberg Depression Rating Scale (MADRS) at Week 13
units on a scaleActive (Real)Sham
Visit1(Baseline)25.63 ± 8.1524.29 ± 7.71
Visit2(18~24 days from the baseline)19.76 ± 8.4019.43 ± 8.79
Visit3(39~45 days from the baseline)19.15 ± 9.2618.42 ± 10.91
Visit4(77~91 days from the baseline)19.30 ± 10.3517.13 ± 12.95
Statistical analysis
  • Active (Real) vs Sham · Mixed Models Analysis · p = 0.662 (This is p-valu regarding time and group.)
SecondaryChange From Baseline in Depressive Symptoms on Epidemiologic Studies Depression Scale Revised (CESD-R) at Week 13

Epidemiologic Studies Depression Scale Revised test was revised to reflect the major depressive illustration diagnostic criteria for the evaluation of depression. Items reflecting anaesthesia, mental exercise delay/anxiety, and suicide accidents have been added, and are measured as 0 to 4 points per question on a self-report 20 question scale. The score ranges from 0\~80 points. . A score equal to or above 16 indicates a person at risk for clinical depression.

Time frame:
From Visit1(baseline) to 91 days
Reported as:
Mean · units on a scale
Change From Baseline in Depressive Symptoms on Epidemiologic Studies Depression Scale Revised (CESD-R) at Week 13
units on a scaleActive (Real)Sham
Visit1(Baseline)36.83 ± 17.7436.40 ± 16.37
Visit2(18~24 days from the baseline)34.39 ± 17.8631.53 ± 19.15
Visit3(39~45 days from the baseline)30.73 ± 18.4226.25 ± 19.39
Visit4(77~91 days from the baseline)27.19 ± 18.9523.84 ± 19.06
Statistical analysis
  • Active (Real) vs Sham · ANOVA · p = 0.318 (This is p-valu regarding time and group.)
SecondaryChange From Baseline in Depressive Symptoms on Hamilton Anxiety Scale (HAM-A) at Week 13

The scale developed by Hamilton consists of 14 questions, and is evaluated by the clinician on a 5-point Likert scale of a semi-structured interview tool. The score ranges from 0\~56 points. Each item is scored on a scale of 0 (not present) to 4 (severe), with total score range of 0-56, where \<17 indi- cates mild severity, 18-24 mild to moderate severity and 25-30 moderate to severe.

Time frame:
From Visit1(baseline) to 91 days
Reported as:
Mean · units on a scale
Change From Baseline in Depressive Symptoms on Hamilton Anxiety Scale (HAM-A) at Week 13
units on a scaleActive (Real)Sham
Visit1(Baseline)16.22 ± 9.0117.44 ± 7.67
Visit2(18~24 days from the baseline)13.18 ± 8.0714.62 ± 9.09
Visit3(39~45 days from the baseline)13.70 ± 9.4913.11 ± 8.70
Visit4(77~91 days from the baseline)12.92 ± 8.9913.15 ± 10.48
Statistical analysis
  • Active (Real) vs Sham · ANOVA · p = 0.273
SecondaryChange From Baseline in Depressive Symptoms on Clinical Global Impression-Severity of Illness Scale (CGI-SI) at Week 13

It was developed for evaluation of symptom severity, treatment response, and treatment effectiveness in patients with psychiatric disorders (Guy W, 1976) and scored 0-7 points based on the overall impression of the subject's symptoms and treatment response compared to typical patients with the disease. It was developed for evaluation of symptom severity, treatment response, and treatment effectiveness in patients with psychiatric disorders (Guy W, 1976) and scored 0-7 points based on the overall impression of the subject's symptoms and treatment response compared to typical patients with the disease. The score ranges from 0\~7 points. 1: normal, not at all ill 2: borderline mentally ill 3: mildly ill 4: moderately ill 5: markedly ill 6: severely ill 7: extremely ill

Time frame:
From Visit1(baseline) to 91 days
Reported as:
Mean · units on a scale
Change From Baseline in Depressive Symptoms on Clinical Global Impression-Severity of Illness Scale (CGI-SI) at Week 13
units on a scaleActive (Real)Sham
Visit1(Baseline)3.19 ± 1.013.35 ± 0.89
Visit2(18~24 days from the baseline)2.87 ± 0.943.04 ± 1.02
Visit3(39~45 days from the baseline)2.74 ± 1.042.95 ± 1.11
Visit4(77~91 days from the baseline)2.75 ± 1.112.75 ± 1.13
Statistical analysis
  • Active (Real) vs Sham · ANOVA · p = 0.639
SecondaryChange From Baseline in Depressive Symptoms on Digit Symbol Substitution Test (DSST) at Week 13

t is possible to measure high-dimensional cognitive functions such as perceptual organization ability and visual movement coordination, and examine attentional concentration, visual short-term memory, and mental movement speed. A post-marketing survey (PMS) on a new mechanism of anti-depressant (vortioxetine) is used to measure cognitive function before and after the use of the antidepressant in depressed patients. The score is the number of correct number-symbol matches achieved in 90 s. The score ranges from 0\~93 points.

Time frame:
From Visit1(baseline) to 91 days
Reported as:
Mean · units on a scale
Change From Baseline in Depressive Symptoms on Digit Symbol Substitution Test (DSST) at Week 13
units on a scaleActive (Real)Sham
Visit1(Baseline)42.39 ± 11.4542.09 ± 11.12
Visit2(18~24 days from the baseline)46.58 ± 11.3946.78 ± 9.98
Visit3(39~45 days from the baseline)48.83 ± 11.6748.95 ± 10.59
Visit4(77~91 days from the baseline)49.51 ± 12.1048.09 ± 10.54
Statistical analysis
  • Active (Real) vs Sham · ANOVA · p = 0.452

Adverse events

Collected over Adverse event data were systematically collected over a mean of 13 weeks during the 6-week intervention period and the follow-up visit immediately following the end of the study.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Active0/108 (0%)2/108 (1.9%)3/108 (2.8%)
Sham(1)0/89 (0%)0/89 (0%)5/89 (5.6%)
Sham(2)0/89 (0%)0/89 (0%)1/89 (1.1%)
Most frequent serious events
Most frequent serious events
EventActiveSham(1)Sham(2)
DepressionPsychiatric disorders2/1080/890/89
Most frequent other events
Most frequent other events
EventActiveSham(1)Sham(2)
Skin irriationSkin and subcutaneous tissue disorders3/1085/891/89

Baseline characteristics

Active (Real) tDCS Group: Participants received 6 weeks of active transcranial direct current stimulation (tDCS) treatment at 2 mA, 5 days per week. Sham tDCS Group: Participants received 3 weeks of active tDCS treatment followed by 3 weeks of sham stimulation (placebo control).

Age, Categorical
Age, Categorical(Participants)Active (Real)ShamTotal
<=18 years000
Between 18 and 65 years10889197
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)Active (Real)ShamTotal
Female7351124
Male353873
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Active (Real)ShamTotal
American Indian or Alaska Native000
Asian10889197
Native Hawaiian or Other Pacific Islander000
Black or African American000
White000
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)Active (Real)ShamTotal
South Korea10889197
Beck Depression Inventory-II(BDI-II)
Beck Depression Inventory-II(BDI-II)(units on a scale)Active (Real)ShamTotal
Mean30.27 ± 13.2229.62 ± 11.1230.00 ± 12.35
08

Study locations

5 sites
  • Hallym Univsity Chuncheon Sacred Heart Hospital
    Chuncheon, Gangwon-do 24253, South Korea
  • National Health Insurance Service Ilsanhospital
    Goyang-si, Gyeonggi-do 10444, South Korea
  • Myongji Hospital
    Goyang-si, Gyeonggi-do 10475, South Korea
  • Catholic Kwandong University International St. Mary'S Hospital
    Incheon, Gyeonggi-do 22711, South Korea
  • Yongin Severance Hospital, Yonsei University College of Medicine
    Yongin, Gyeonggi-do 16995, South Korea
09

References and documents

Publications

  • Oh J, Jang KI, Jeon S, Chae JH. Effect of Self-administered Transcranial Direct Stimulation in Patients with Major Depressive Disorder: A Randomized, Single-blinded Clinical Trial. Clin Psychopharmacol Neurosci. 2022 Feb 28;20(1):87-96. doi: 10.9758/cpn.2022.20.1.87. PubMed 35078951 ↗
  • Fregni F, Nitsche MA, Loo CK, Brunoni AR, Marangolo P, Leite J, Carvalho S, Bolognini N, Caumo W, Paik NJ, Simis M, Ueda K, Ekhitari H, Luu P, Tucker DM, Tyler WJ, Brunelin J, Datta A, Juan CH, Venkatasubramanian G, Boggio PS, Bikson M. Regulatory Considerations for the Clinical and Research Use of Transcranial Direct Current Stimulation (tDCS): review and recommendations from an expert panel. Clin Res Regul Aff. 2015 Mar 1;32(1):22-35. doi: 10.3109/10601333.2015.980944. PubMed 25983531 ↗
  • Wang J, Luo H, Schulke R, Geng X, Sahakian BJ, Wang S. Is transcranial direct current stimulation, alone or in combination with antidepressant medications or psychotherapies, effective in treating major depressive disorder? A systematic review and meta-analysis. BMC Med. 2021 Dec 17;19(1):319. doi: 10.1186/s12916-021-02181-4. PubMed 34915885 ↗
  • Ahn JS, Kim WJ, Jhung K, Roh D, Park J, Park JY. Dissociable roles of frontal electroencephalography markers in depression: Predictive value of frontal alpha asymmetry and responsive changes in beta power following home-based brain stimulation. J Psychiatr Res. 2026 Jun 23;201:254-264. doi: 10.1016/j.jpsychires.2026.06.030. Online ahead of print. PubMed 42341411 ↗
  • Jung HW, Park S, Chung K, Kim Y, Roh D, Jhung K, Kim WJ, Park JY, Park J. Identifying treatment response classes to transcranial direct current stimulation from daily ecological momentary assessment patterns in patients with depression. Int J Neuropsychopharmacol. 2026 Apr 6;29(4):pyag012. doi: 10.1093/ijnp/pyag012. PubMed 41967000 ↗
  • Park HY, Park J, Roh D, Jhung K, Chang JG, Park S, Ryu JS, Do G, Lee K, Park JY, Kim WJ. Real-World Effects of Home-Based Transcranial Direct Current Stimulation in Depression: A Randomized Controlled Trial of 3-Week Versus 6-Week Protocols. Brain Behav. 2025 Dec;15(12):e71119. doi: 10.1002/brb3.71119. PubMed 41376187 ↗

Study documents

  • Protocol and statistical analysis plan · Mar 23, 2023

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — Personal information collected for research purposes shall be kept anonymously in a safe place within the institute to be managed so that personal information is not exposed.

Supporting information: Study protocol, Sap, Icf, Csr, Analytic code

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 11, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05539131
Lead sponsor
Yonsei University
Responsible party
Woo Jung Kim (Clinical Associate Professor, Yonsei University) — Principal investigator
First posted
Sep 14, 2022
Start date
Nov 4, 2022
Primary completion
Oct 31, 2024
Completion
Dec 31, 2024
Results posted
Sep 11, 2025
Last update
Sep 11, 2025

Study contacts

Woo Jung Kim
principal investigator · Severance Hospital

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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