ClinicalTrials.Veeva

Menu

Effect of tDCS on Cognition, Symptoms in Chronic Schizophrenia Patients With Tardive Dyskinesia

S

Suzhou Psychiatric Hospital

Status

Completed

Conditions

Tardive Dyskinesia

Treatments

Device: Sham tDCS
Device: Active tDCS

Study type

Interventional

Funder types

Other

Identifiers

NCT03497013
SS201752 (Other Grant/Funding Number)
Szzx201509 (Other Grant/Funding Number)

Details and patient eligibility

About

The aim of the study was to evaluate the efficacy, safety, and cognitive function of transcranial direct current stimulation (tDCS) in chronic schizophrenia patients with tardive dyskinesia (TD).

Full description

This study is a randomized, double-blind, sham-controlled clinical trial. 60 patients with TD were randomly allocated to active (n=30) or sham tDCS groups (n=30). All patients received 2-mA anodal left/cathodal right prefrontal tDCS treatment (fifteen 30-minutes sessions: Monday to Friday once daily, every other week to do a group of treatment). Abnormal Involuntary Movements Scale (AIMS), Tardive Dyskinesia Rating Scale (TDRS), Assessment of Negative Symptoms(SANS), the Positive and Negative symptom scale(PANSS), and the Cambridge Neuropsychological Test Automatic Battery (CANTAB) were assessed in patients. All evaluations were scored at baseline, the end of 3rd weeks, 5th weeks, and 7th weeks. Side effects of tDCS were assessed with an experimenter-administered open-ended questionnaire during the whole experiment.

Enrollment

64 patients

Sex

All

Ages

18 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. Right-handed;
  2. meeting the diagnosis of schizophrania;
  3. had been receiving antipsychotic drugs for at least 12 months;
  4. at least one AIMS item rated(moderate) or at least two AIMS items rated ≥2(mild);
  5. All patients volunteered to participate in this study.

Exclusion criteria

  1. organic disorder that could cause movement disorders, mental retardation,and a history of substance dependence(except nicotine);
  2. with serious physical illness(e.g.severe cardiovascular diseases);
  3. with color blindness/weakness, stuttering, deafness.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Double Blind

64 participants in 2 patient groups

Active tDCS
Experimental group
Description:
All patients received 2-mA anodal left/cathodal right prefrontal tDCS treatment (fifteen 30-minutes sessions: Monday to Friday once daily, every other week to do a group of treatment).
Treatment:
Device: Active tDCS
Sham tDCS
Sham Comparator group
Description:
For sham stimulation, the device was set to turn off after 30 seconds(study model).
Treatment:
Device: Sham tDCS

Trial documents
2

Trial contacts and locations

2

Loading...

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2025 Veeva Systems