NCT02535676

Brief Summary

The aim of this study is to evaluate the therapeutic efficacy of tDCS (transcranial direct current stimulation) for treatment of negative symptoms in patients with schizophrenia. The proposed design is a clinical trial, randomized, double-blind, placebo-controlled study. Participants will receive ten sessions of active or sham stimulation in five consecutive days. 100 patients will be randomized into two groups (active tDCS vs sham tDCS) and will be assessed after the intervention: 2, 4, 6 and 12 weeks after. As objectives, the investigators expect to see a clinical improvement of negative symptoms through scales PANSS (Positive and Negative Syndrome Scale), Calgary, Auditory verbal hallucinations, SANS (Skills for Assessment of Negative Symptoms), and expect improvement on computerized cognitive tests. Another goal is to see improvement in biological markers related to schizophrenia, plasma and DNA will be stored.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P25-P50 for phase_3 schizophrenia

Timeline
Completed

Started Nov 2014

Longer than P75 for phase_3 schizophrenia

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2014

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

August 26, 2015

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 28, 2015

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2018

Completed
Last Updated

May 14, 2019

Status Verified

May 1, 2019

Enrollment Period

3.5 years

First QC Date

August 26, 2015

Last Update Submit

May 10, 2019

Conditions

Keywords

schizophreniatranscranial stimulation

Outcome Measures

Primary Outcomes (1)

  • Change in subscale of PANSS

    Reduction of PANSS negative subscale (continuous measure) at 6 weeks

    Repeated measures: 0, 2, 4 and 6 weeks (endpoint)

Secondary Outcomes (3)

  • Change in SANS

    Repeated measures: 0, 2, 4, 6 and 12 weeks

  • Change in Negative subscale of PANSS

    12 weeks

  • Change in Auditory Verbal Hallucination Scale

    Repeated measures: 0, 2, 4, 6 and 12 weeks

Study Arms (2)

Active tDCS

ACTIVE COMPARATOR

Sham Comparator: Sham Stimulation In active stimulation, the anode is placed over the left dorsolateral prefrontal cortex and the cathode is placed over the temporo-parietal cortex with the Transcranial Direct Current Stimulation. The device will deliver a charge of 2mA for 20 minutes.

Device: Transcranial Direct Current Stimulation

Sham tDCS

SHAM COMPARATOR

Sham Comparator: Sham Stimulation In active stimulation, the anode is placed over the left dorsolateral prefrontal cortex and the cathode is placed over the temporo-parietal cortex with the Transcranial Direct Current Stimulation. The device will deliver a charge of 2mA for 1 minute, after that the device will be automatically turned off for 19 minutes.

Device: Transcranial Direct Current Stimulation

Interventions

The device will produce a direct current of 2 mA from one electrode to the other. In active stimulation, the device will be turned on for 20 min and in sham stimulation the device will be turned in 2 mA for one minute and will be automatically turned off the remaining 19 minutes. The sham or active mode is chosen by a numeric code.

Also known as: Transcranial eletric stimulation
Active tDCSSham tDCS

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Diagnosis of schizophrenia according to DSM-IV criteria and confirmed by the SCID
  • Minimum score of 20 points in the sum of negative PANSS
  • Stable antipsychotic medications

You may not qualify if:

  • Unstable medical illness
  • Uncontrolled pretreatment with rTMS or tDCS
  • At least six months without being in ECT
  • Benzodiazepines in doses of 10mg of diazepam
  • Electronic or metal implants in the cephalic segment.
  • Other mental disorders and dependence of substances

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Sao Paulo

São Paulo, São Paulo, Brazil

Location

Related Publications (3)

  • Bulubas L, Goerigk S, Gomes JS, Brem AK, Carvalho JB, Pinto BS, Elkis H, Gattaz WF, Padberg F, Brunoni AR, Valiengo L. Cognitive outcomes after tDCS in schizophrenia patients with prominent negative symptoms: Results from the placebo-controlled STARTS trial. Schizophr Res. 2021 Sep;235:44-51. doi: 10.1016/j.schres.2021.07.008. Epub 2021 Jul 22.

  • Valiengo LDCL, Goerigk S, Gordon PC, Padberg F, Serpa MH, Koebe S, Santos LAD, Lovera RAM, Carvalho JB, van de Bilt M, Lacerda ALT, Elkis H, Gattaz WF, Brunoni AR. Efficacy and Safety of Transcranial Direct Current Stimulation for Treating Negative Symptoms in Schizophrenia: A Randomized Clinical Trial. JAMA Psychiatry. 2020 Feb 1;77(2):121-129. doi: 10.1001/jamapsychiatry.2019.3199.

  • Valiengo L, Gordon PC, de Carvalho JB, Rios RM, Koebe S, Serpa MH, van de Bilt M, Lacerda A, Elkis H, Gattaz WF, Brunoni AR. Schizophrenia TreAtment with electRic Transcranial Stimulation (STARTS): design, rationale and objectives of a randomized, double-blinded, sham-controlled trial. Trends Psychiatry Psychother. 2019 Jun 19;41(2):104-111. doi: 10.1590/2237-6089-2018-0047.

MeSH Terms

Conditions

Schizophrenia

Interventions

Transcranial Direct Current Stimulation

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsConvulsive TherapyPsychiatric Somatic TherapiesBehavioral Disciplines and ActivitiesElectroshockPsychological Techniques

Study Officials

  • Leandro Valiengo, PhD

    University of Sao Paulo

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Medical Assistance

Study Record Dates

First Submitted

August 26, 2015

First Posted

August 28, 2015

Study Start

November 1, 2014

Primary Completion

May 1, 2018

Study Completion

May 1, 2018

Last Updated

May 14, 2019

Record last verified: 2019-05

Locations