TDCS for Auditory Hallucinations in Schizophrenia
tDCS for Auditory Hallucinations in Schizophrenia
1 other identifier
interventional
89
1 country
2
Brief Summary
The purpose of the present research is to test a potential new treatment for auditory verbal hallucinations in schizophrenia that uses transcranial Direct Current Stimulation (tDCS), a neurostimulation technique that passes an extremely weak electric current through the brain. During the treatment, two electrodes are positioned on the scalp above regions of the brain implicated in abnormal cortical activity associated with auditory verbal hallucinations in schizophrenia. Due to the directional flow of current, one electrode, termed "cathodal",inhibits cortical activity, and the other, termed "anodal", increases cortical activity. These electrodes will be placed such that cathodal stimulation is applied to an area associated with hyperactivity and anodal stimulation to an area associated with hypoactivity. One preliminary study has revealed that this form of neurostimulation can alleviate auditory verbal hallucination symptoms both immediately following five days of treatment and up to three months after the final treatment. The goal of this study is to replicate these effects and explore the mechanisms that may underpin them.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable schizophrenia
Started May 2013
Longer than P75 for not_applicable schizophrenia
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2013
CompletedFirst Submitted
Initial submission to the registry
June 12, 2013
CompletedFirst Posted
Study publicly available on registry
July 12, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 14, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
August 14, 2018
CompletedResults Posted
Study results publicly available
March 23, 2020
CompletedMarch 23, 2020
March 1, 2020
5.2 years
June 12, 2013
January 31, 2020
March 19, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Severity of Refractory Auditory Hallucinations
Total score: Auditory hallucinations as determined by Auditory Hallucinations Rating Scale (AHRS). This is a seven item scale rating auditory hallucinations. Total score ranges from 1 to 41, with higher scores more severe.
Auditory Hallucination Rating Scale score after one month
Study Arms (2)
Transcranial Direct Current Stimulation
EXPERIMENTALTranscranial Direct Current Stimulation (tDCS) treatments will take place for 20 minutes per day for 5 consecutive days
Sham tDCS
SHAM COMPARATORSham tDCS(inactive)treatment (transcranial Direct Current Stimulation) will take place for 20 minutes per day for 5 consecutive days.
Interventions
A neurostimulation technique that passes an extremely weak electric current through the brain.
Eligibility Criteria
You may qualify if:
- Age between 18-55
- Structured Clinical Interview for DSM Disorders (SCID) primary diagnosis of DSM-IV (Diagnostic and Statistical Manual of Mental Disorders-Version IV) schizophrenia or schizoaffective disorder
- Persistent auditory verbal hallucinations
- Right handed
- Stable antipsychotic medication for \> 4 weeks
- Normal hearing
- If female and not infertile, must agree to use one of the following forms of contraception for the duration of study participation: systemic hormonal treatment, an interuterine device (IUD) which was implanted at least 2 months prior to screening, or "double-barrier" contraception
- Willing/capacity to provide informed consent
You may not qualify if:
- Substance dependence or abuse (excluding nicotine) in the past 90 days
- Current significant laboratory abnormality
- History of seizure, epilepsy in self or fist degree relatives, stroke, brain surgery, head injury with loss of consciousness \> 1 hour or clear cognitive sequelae, intracranial metal implants, known structural brain lesion, devices that may be affected by transcranial Direct Current Stimulation (tDCS) (pacemaker, medication pump, cochlear implant, implanted brain stimulator)
- Frequent and persistent migraines
- History of adverse reaction to neurostimulation or open skin wounds that would preclude safe placement of tDCS electrodes
- Participation in study of investigational medication/device within 4 weeks
- Current use of medications known to lower seizure threshold (lithium, serotonergic or tricyclic antidepressants)
- If female, pregnant or breast feeding at the time of screening
- For MRI study only: Claustrophobia or metal implants or paramagnetic objects contained within the body which may interfere with the MRI scan, as determined according to the guidelines set forth in the following reference book: "Guide to MR procedures and metallic objects" Shellock, PhD, Lippincott-Raven press, NY 1998
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
New York State Psychiatric Institute
New York, New York, 10032, United States
Nathan Kline Institute
Orangeburg, New York, 10962, United States
Related Publications (1)
Kantrowitz JT, Sehatpour P, Avissar M, Horga G, Gwak A, Hoptman MJ, Beggel O, Girgis RR, Vail B, Silipo G, Carlson M, Javitt DC. Significant improvement in treatment resistant auditory verbal hallucinations after 5 days of double-blind, randomized, sham controlled, fronto-temporal, transcranial direct current stimulation (tDCS): A replication/extension study. Brain Stimul. 2019 Jul-Aug;12(4):981-991. doi: 10.1016/j.brs.2019.03.003. Epub 2019 Mar 5.
PMID: 30922713DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Joshua Kantrowitz
- Organization
- New York State Psychiatric Institute
Study Officials
- PRINCIPAL INVESTIGATOR
Daniel C Javitt, MD
Nathan Kline Institute, New York State Psychiatric Institute
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical Psychiatrist
Study Record Dates
First Submitted
June 12, 2013
First Posted
July 12, 2013
Study Start
May 1, 2013
Primary Completion
July 14, 2018
Study Completion
August 14, 2018
Last Updated
March 23, 2020
Results First Posted
March 23, 2020
Record last verified: 2020-03