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A parallel randomized double-blind sham-controlled multicentre trial of transcranial direct current stimulation (tDCS) in adult attention deficit hyperactivity disorder (ADHD)

A parallel randomized double-blind sham-controlled multicentre trial of transcranial direct current stimulation (tDCS) in adult attention deficit hyperactivity disorder (ADHD) - Stim-ADHD

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00028148
Enrollment
250
Registered
2022-07-29
Start date
2022-10-04
Completion date
Unknown
Last updated
2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

MedDRA - Attention deficit hyperactivity disorder F90.0

Interventions

Group 1: Experimental intervention: Five 21-min sessions of bifrontal tDCS with the anode over right dorsolateral prefrontal cortex (rDLPFC, F4) and the cathode over the left DLPFC (F3)
for 5 consecutive days over the course of one week. Group 2: Control intervention: Sham-stimulation with identical electrode placement and identical timely regimen as in experimental intervention. Bot

Sponsors

Universität Leipzig
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: ? German speaking patients with primary DSM-5 diagnosis of ADHD ? Written informed consent ? Age >= 18 and <=65 years ? If treated with ADHD-specific medication, no change within the last 3 months before randomization

Exclusion criteria

Exclusion criteria: ? Acute risk for suicide ? Acute severe depressive episode ? Other severe psychiatric disorders as primary clinical problem (e.g., persistent depressive disorder, psychotic symptoms, bipolar disorder, schizoaffective disorder, schizophrenia, psychosis, Borderline personality disorder) ? Current alcohol use disorder or substance use disorder except for nicotine as primary clinical problem and/or a urine drug screening is positive ? Change in ADHD-specific medication/s planned before assessment of the primary endpoint ? other psychotropic medication: current or during wash-out period ? Severe somatic comorbidity ? Severe neurological comorbidities ? Contraindications for tDCS intervention ? Fertile women without appropriate contraceptive measures ? Participation in other interventional trials ? Patients under legal supervision or guardianship ? Suspected lack of compliance ? Pregnant or nursing women

Design outcomes

Primary

MeasureTime frame
Primary objective is to test the hypothesis that tDCS is effective in reducing ADHD symptoms with persisting benefits for at least 2 weeks after the end of stimulation and superior to sham-stimulation, determined by DSM-IV ADHD total score of the Conners’ Adult ADHD Rating Scales (German self-report screening form; CAARS-S-SR) 14 days post intervention (on Visit 7=primary endpoint)

Secondary

MeasureTime frame
Further characteristics often reported in ADHD patients is tested, e.g. improvement in sustained attention, everyday activities, psychological distress, as well as quality of sleep. 1) CAARS-S-SR DSM-IV scales: inattentive symptoms (DSM-IN) and hyperactive-impulsive symptoms (DSM-HY/I) on Visit 1, 5, 7, 14, 28, 56 and 90 2) Reaction time, variability, omission and action errors assessed by Continuous Performance Test (CPT) on Visit 1, 5, 14 and 90 3) ADHD-specific quality of life assessed by Adult ADHD Quality-of-Life Scale Questionnaire (AAQoL) on Visit 1, 5, 7, 14, 28, 56 and 90 4) Symptomatic distress assessed by Symptom Checklist-90-Revised (SCL-90-S) on Visit 1, 5, 7, 14, 28, 56 and 90 5) Sleep quality and disturbance assessed by Pittsburgh Sleep Quality Index (PSQI) on Visit 1, 5, 7, 14, 28, 56 and 90

Countries

Germany

Contacts

Public ContactMaria Strauß

Universitätsklinikum Leipzig AöR Department für Psychische Gesundheit Klinik und Poliklinik für Psychiatrie und Psychotherapie

maria.strauss@medizin.uni-leipzig.de0341 97 24500

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: May 1, 2026