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SchizophreniaPhase 3STARTSNCT02535676

Schizophrenia TreAtment With electRic Transcranial Stimulation

A Phase 3 study testing Transcranial Direct Current Stimulation in people with Schizophrenia, run by University of Sao Paulo at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 18 to 55 years
Conditions the study is for
Schizophrenia
What is being tested?
Transcranial Direct Current Stimulation
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
100 participants
Where
1 siteBrazil
Study dates
Nov 2014to May 2018
Phase
Phase 3
Are there results?
None posted in the registry

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

  • 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

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • University of Sao Paulo

    São Paulo, São Paulo

Other trials in Brazil

About this study

Official title: Treatment of Negative Symptoms of Schizophrenia With Transcranial Direct Current Stimulation (tDCS): A Randomized, Double-blinded, Sham-controlled, Clinical Trial

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.

Conditions
Schizophrenia
Keywords
schizophrenia, transcranial stimulation
Medical subject headings
Schizophrenia

What participants receive

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

  • Transcranial Direct Current StimulationDevice

    Also called Transcranial eletric stimulation

    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.

Study groups in NCT02535676
Study groupRoleWhat they receive
Active tDCSActive comparatorSham 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.
Receives: Device: Transcranial Direct Current Stimulation
Sham tDCSSham comparatorSham 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.
Receives: Device: Transcranial Direct Current Stimulation

What is being measured

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

  1. Change in subscale of PANSS

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

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

Secondary outcomes (3)
  1. Change in SANS

    Reduction of SANS (continuous measure)

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

  2. Change in Negative subscale of PANSS

    Reduction of PANSS negative subscale (continuous measure)

    Measured: 12 weeks

  3. Change in Auditory Verbal Hallucination Scale

    Continuous measure

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

Timeline

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

  1. First posted28 Aug 2015 (estimated)
  2. Study startNov 2014
  3. Primary completionMay 2018
  4. Study completionMay 2018

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
100 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02535676
Sponsor's protocol ID
31063714.1.1001.0068
Acronym
STARTS
Status last verified
May 2019
First submitted
26 Aug 2015
Last updated
14 May 2019
Results posted
No
Data monitoring committee
No

Publications

  • 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.

    PubMed 34304146
  • 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.

    PubMed 31617873
  • 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.

    PubMed 31241683

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Transcranial Direct Current Stimulation in people with Schizophrenia, run by University of Sao Paulo at 1 site in Brazil.

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 3 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: finished, as of the sponsor's last update on 14 May 2019. 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 Brazil. 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in subscale of PANSS (time frame: Repeated measures: 0, 2, 4 and 6 weeks (endpoint)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02535676, which also lists 3 linked publications.

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 14 May 2019.

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