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NCT04033679Active, not recruiting

The Effects of Non-invasive Brain Stimulation on Treatment Adherence in Schizophrenia

The Effects of Adjunctive Transcranial Direct Current Stimulation on Treatment Adherence in Schizophrenia

Source: ClinicalTrials.gov · Last updated 25 Aug 2026

Brief summary (registry, in English)

This study seeks to explore the effects of transcranial direct current stimulation (tDCS), a non-invasive method of brain stimulation, as an adjunctive treatment to improve antipsychotic medication adherence in patients with schizophrenia (SCZ). The investigators hypothesize that 20 sessions of tDCS will improve medication nonadherence in patients with SCZ.

Status (registry)
Active, not recruiting
Study type
Interventional
Enrollment
106 (estimated)
First submitted
23 May 2019
Start date
15 Aug 2019
Primary completion date
31 Mar 2027
Lead sponsor
Centre for Addiction and Mental Health
NCT number
NCT04033679

What you commit to

  • Study type: Interventional
  • Planned participants: 106
  • From 15 Aug 2019 to the primary completion date, 31 Mar 2027
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Unstable medical or any concomitant major medical or neurological illness, including a history of seizures
  • Positive urine drug screen except for cannabis/marijuana at the screening visit
  • Metal implants or pacemaker precluding an MRI scan or other contraindications to MRI (eg., claustrophobia)
  • Score \< 32 on the Wide Range Achievement Test-III
    • Substance misuse: In addition to impaired insight, substance misuse is one of the principle contributors to medication nonadherence. To minimize the possibility of its influence, participants with a DSM-V diagnosis of substance dependence within 1 month of entering the study or a positive urine drug test (except for cannabis/marijuana) at the screening visit will be excluded. Substance use and urine drug screens will be assessed at subsequent study visits.

Other illness

  • Formal thought disorder rating ≥3 on the Positive and Negative Syndrome Scale (PANSS) P2 conceptual disorganization item

Other

  • Unwilling or incapable to consent to the study based on the MacArthur Test of Competence
  • Acute suicidal or homicidal ideation
  • DSM-V substance dependence (except caffeine and nicotine) within 1 month of entering the study\*
  • Pregnancy

Who the study is looking for

  • Male or female participants of any race or ethnicity
  • Inpatients or outpatients ≥18 years of age
  • DSM-V diagnosis of SCZ or schizoaffective disorder
  • Capable of consenting to participate in the research study
  • On a stable dose of antipsychotic drug and other concomitant medications for at least 2 months, and unlikely to undergo changes in dose during the study

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Centre for Addiction and Mental Health
Coordinator of this site? Confirm its status
TorontoCanadaUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.