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Adult Attention Deficit Hyperactivity DisorderNCT07565402

Effects and Mechanisms of Transcranial Direct Current Stimulation Combined With Dialectical Behavior Therapy Skills Training in Adults With Attention-Deficit/Hyperactivity Disorder

A study testing Transcranial Direct Current Stimulation (tDCS) in people with Adult Attention Deficit Hyperactivity Disorder, run by Nanjing Medical University at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Effects and Mechanisms of Transcranial Direct Current Stimulation Combined with Dialectical Behavior Therapy Skills Training in Adults with Attention-Deficit/Hyperactivity Disorder Abstract Adult attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder that frequently persists into adulthood… Read more about this study

Who is it for?
Ages 18 to 55 years
What is being tested?
Transcranial Direct Current Stimulation (tDCS)
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
60 participants
Where
1 siteChina
Study dates
1 Apr 2026to 1 Sep 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Meet the diagnostic criteria for attention-deficit/hyperactivity disorder (ADHD) according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). Diagnosis confirmed using the Chinese version of the Diagnostic Interview for ADHD in Adults (DIVA-5).
  • Aged between 18 and 55 years.
  • Right-handed.
  • Voluntary participation with provision of written informed consent.

Who cannot join

  • Presence of neurological disorders or other psychiatric disorders.
  • Severe physical illness.
  • Receipt of electroconvulsive therapy (ECT) or other physical treatments within 6 months prior to enrollment.
  • Planned changes in ADHD-related medication before the final follow-up assessment.
  • Contraindications to tDCS (e.g., intracranial metal or electronic implants, skull plates, or other cranial implants).
  • Pregnancy or breastfeeding.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

China1 site, 1 recruiting
  • Nanjing Brain Hospital

    Nanjing, Jiangsu, 210029

    Chun Wang, PhD, 15850566376, wang_chun@nju.edu.cn

    Recruiting

Other trials in China

About this study

Effects and Mechanisms of Transcranial Direct Current Stimulation Combined with Dialectical Behavior Therapy Skills Training in Adults with Attention-Deficit/Hyperactivity Disorder

Abstract Adult attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder that frequently persists into adulthood and is associated with substantial impairments in academic, occupational, and social functioning. Although pharmacological treatment remains the primary intervention, some adults with ADHD show limited response to medication or experience adverse effects, highlighting the need for effective non-pharmacological or combined treatment approaches. Dialectical Behavior Therapy Skills Training (DBT-ST), which emphasizes emotion regulation, impulse control, mindfulness, and behavioral organization, has shown potential in the treatment of adult ADHD. However, its therapeutic efficacy may vary across individuals, and strategies to enhance treatment outcomes still require further investigation. In parallel, transcranial direct current stimulation (tDCS), a safe and non-invasive neuromodulation technique, has attracted increasing attention as an adjunctive intervention in psychiatric disorders. Existing studies suggest that combining tDCS with psychotherapy may optimize treatment effects by modulating neural networks related to cognitive control and emotional regulation. Nevertheless, evidence for such combined interventions in adult ADHD remains limited, particularly with respect to rigorous randomized controlled designs and mechanism-based neuroimaging validation.

Read more

The present study aims to investigate the efficacy and potential mechanisms of tDCS combined with DBT-ST in adults with ADHD. A randomized, double-blind, sham-controlled design will be adopted. Sixty eligible adult participants with ADHD will be randomly assigned to either an active tDCS group or a sham stimulation group, with both groups receiving weekly DBT-ST for ten consecutive weeks. tDCS will be administered over the bilateral dorsolateral prefrontal cortex (DLPFC) with 2 mA current for 20 minutes, prior to each group therapy session. Clinical symptoms, functional outcomes, and cognitive performance will be assessed at baseline, post-intervention, and one-month follow-up using standardized self-report measures and behavioral tasks. In addition, resting-state functional magnetic resonance imaging (rs-fMRI) will be conducted before and after the intervention to examine changes in functional connectivity within prefrontal regulatory networks.

This study is expected to clarify whether tDCS can enhance the therapeutic effects of DBT-ST on core ADHD symptoms and related functional outcomes, and whether such effects are associated with improvements in executive function, emotion regulation, and alterations in DLPFC-related resting-state functional connectivity. By integrating clinical, behavioral, and neuroimaging measures, the study seeks to provide preliminary evidence for a novel non-pharmacological combined intervention for adult ADHD and to further elucidate its underlying neural mechanisms.

Being tested
Transcranial Direct Current Stimulation (tDCS)
Keywords
adult ADHD, transcranial direct current stimulation, dialectical behavior therapy, DBT skills training, executive function, resting-state fMRI
Medical subject headings
Attention Deficit Disorder with Hyperactivity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Transcranial Direct Current Stimulation (tDCS)Device

    Also called tDCS

    Transcranial direct current stimulation (tDCS) is administered over the bilateral dorsolateral prefrontal cortex (DLPFC). In the active condition, a constant current of 2 mA is applied for 20 minutes per session, twice prior to each weekly therapy session, for 10 weeks. The anodal electrode is placed over the left DLPFC (F3) and the cathodal electrode over the right DLPFC (F4). In the sham condition, the current is ramped up and down briefly to mimic the sensation of stimulation without delivering an effective dose.

Study groups in NCT07565402
Study groupRoleWhat they receive
Active tDCS + DBT-STExperimentalParticipants receive active transcranial direct current stimulation (tDCS) over the bilateral dorsolateral prefrontal cortex combined with dialectical behavior therapy skills training (DBT-ST).
Receives: Device: Transcranial Direct Current Stimulation (tDCS)
Sham tDCS + DBT-STSham comparatorParticipants receive sham transcranial direct current stimulation (tDCS) combined with dialectical behavior therapy skills training (DBT-ST).
Receives: Device: Transcranial Direct Current Stimulation (tDCS)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in ADHD symptoms as measured by the Adult ADHD Self-Report Scale (ASRS)

    ADHD symptom severity will be assessed using the Adult ADHD Self-Report Scale (ASRS). The ASRS is a self-administered questionnaire consisting of 18 items. The total score ranges from 0 to 72, with higher scores indicating more severe ADHD symptoms. The primary outcome is the change in ASRS total score from baseline to post-intervention (10 weeks).

    Measured: Baseline to 10 weeks (post-intervention)

Secondary outcomes (6)
  1. Change in executive function performance as measured by the Stop-Signal Task (SST)

    Executive function will be assessed using the Stop-Signal Task (SST). The outcome measure is the stop-signal reaction time (SSRT), reported in milliseconds. The change in SSRT from baseline to post-intervention will be analyzed.

    Measured: Baseline to 10 weeks

  2. Change in emotion regulation ability as measured by the Difficulties in Emotion Regulation Scale (DERS)

    Emotion regulation will be assessed using the Difficulties in Emotion Regulation Scale (DERS). The DERS is a 36-item self-report questionnaire. The total score ranges from 36 to 180, with higher scores indicating greater difficulties in emotion regulation. The change in DERS total score from baseline to post-intervention will be evaluated.

    Measured: Baseline to 10 weeks (post-intervention)

  3. Change in anxiety symptoms as measured by the Generalized Anxiety Disorder-7 (GAD-7)

    Anxiety symptoms will be assessed using the Generalized Anxiety Disorder-7 (GAD-7) scale. The GAD-7 is a 7-item self-report questionnaire. The total score ranges from 0 to 21, with higher scores indicating more severe anxiety. The change in GAD-7 total score from baseline to post-intervention will be evaluated.

    Measured: Baseline to 10 weeks (post-intervention)

  4. Change in resting-state functional connectivity within prefrontal regulatory networks

    Resting-state functional connectivity will be assessed using resting-state functional magnetic resonance imaging (rs-fMRI). The outcome measure is the strength of functional connectivity within prefrontal regulatory networks, focusing on the dorsolateral prefrontal cortex (DLPFC), and is expressed as Fisher's Z-transformed correlation coefficient. The change in connectivity from baseline to post-intervention will be analyzed.

    Measured: Baseline to 10 weeks (post-intervention)

  5. Maintenance of treatment effects at 1-month follow-up

    Maintenance of treatment effects will be evaluated by reassessing the following clinical and cognitive outcomes at 1-month follow-up and comparing them with baseline values: ASRS total score (range 0-72, higher = worse), SST stop-signal reaction time (milliseconds), N-back d-prime (unitless), DERS total score (36-180, higher = worse), GAD-7 total score (0-21, higher = worse), PHQ-9 total score (0-27, higher = worse), and rs-fMRI DLPFC functional connectivity (Fisher's Z). Each of these measurements will be analyzed as a separate maintenance endpoint, using the same units of measure as defined in the respective outcomes above.

    Measured: 1-month follow-up

  6. Change in depressive symptoms as measured by the Patient Health Questionnaire-9 (PHQ-9)

    Depressive symptoms will be assessed using the Patient Health Questionnaire-9 (PHQ-9). The PHQ-9 is a 9-item self-report questionnaire. The total score ranges from 0 to 27, with higher scores indicating more severe depression. The change in PHQ-9 total score from baseline to post-intervention will be evaluated.

    Measured: Baseline to 10 weeks (post-intervention)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 May 2026
  2. Study start1 Apr 2026 (estimated)
  3. Primary completion21 Jun 2028 (estimated)
  4. Study completion1 Sep 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07565402
Sponsor's protocol ID
2026-KY022-01
Status last verified
Apr 2026
First submitted
15 Apr 2026
Last updated
4 May 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided: Data sharing plans are currently undecided. Data may be made available upon reasonable request and subject to institutional approval and participant confidentiality considerations.

Questions about this trial

What is this clinical trial studying?

A study testing Transcranial Direct Current Stimulation (tDCS) in people with Adult Attention Deficit Hyperactivity Disorder, run by Nanjing Medical University at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 4 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Chun Wang, PhD (15850566376, wang_chun@nju.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in ADHD symptoms as measured by the Adult ADHD Self-Report Scale (ASRS) (time frame: Baseline to 10 weeks (post-intervention)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 May 2026.

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