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Therapeutic Efficacy of Transcranial Magnetic Stimulation in Schizophrenia

14. mars 2018 oppdatert av: Mark Halko, Beth Israel Deaconess Medical Center

Therapeutic Efficacy of Cerebellar Repetitive Transcranial Magnetic Stimulation in Patients With Schizophrenia

The aim of this study is to look at the effectiveness of repetitive transcranial magnetic stimulation (rTMS) as a therapeutic intervention for patients with schizophrenia. The primary outcome is improvement in negative symptoms related to schizophrenia. The investigators are focusing on negative symptoms given their greater resistance to pharmacological and other established therapies. If the investigators trial were to show beneficial effects, its clinical significance would be great.

Studieoversikt

Status

Fullført

Forhold

Detaljert beskrivelse

This study builds on the results of a previous phase 1, single-site study in which we demonstrated the safety of image-guided theta burst stimulation (TBS) form of rTMS over the cerebellar vermis (Demirtas-Tatlidede et al., 2010) in eigh patients with schizophrenia.

The primary goal of the present study is to assess efficacy of iTBS to the cerebellar vermis on positive and negative symptoms of schizophrenia. A second, added goal is to investigate the mechanisms of the expected clinical improvement.

Schizophrenia is a leading cause of mental disability and current treatments still remain only partially successful for many patients. Our underlying hypothesis is that modulation of the cerebellar vermis may enhance activity of the neural systems that sub-serve cognition and emotion, reestablish the disturbed cerebellar regulation in schizophrenic patients, and produce clinical improvement.

Studietype

Intervensjonell

Registrering (Faktiske)

22

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

    • Massachusetts
      • Boston, Massachusetts, Forente stater, 02134
        • Beth Israel Deaconess Medical Center

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 65 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • Age between 18-65 years
  • Diagnosis of schizophrenia according to DSM-IV criteria (Diagnostic and Statistical Manual) by a board-certified psychiatrist

Exclusion Criteria:

  • Preexisting or progressive neurological disorders
  • Prior neurological procedures
  • Previous head injury
  • Change in antipsychotic medication during the last 4 weeks
  • Been an inpatient in a psychiatry clinic within the last month
  • Any other axis 1 diagnosis
  • Patients may not be actively enrolled in a separate intervention study
  • Patients unable to undergo a brain MRI
  • Any unstable medical condition
  • History of seizures, diagnosis of epilepsy, history of abnormal (epileptiform_ EEG, or family history of treatment resistant epilepsy
  • Possible pregnancy. All female participants of child bearing age are required to have a pregnancy test.
  • Any metal in the brain, skull, or elsewhere unless approved by the responsible MD
  • Any medical devices (ie. cardiac pacemaker, deep brain stimulator, medication infusion pump, cochlear implant, vagal nerve stimulator) unless otherwise approved by the responsible MD
  • Substance abuse (alcohol, amphetamines, cocaine, MDMA [methylenedioxymethamphetamine], ecstasy, PCP [phencyclidine], Angle dust) or dependence within the past six months
  • No medication is an absolute exclusion from TMS. Medications will be reviewed by the responsible MD and a decision about inclusion will be made based on the following: the patient's past medical history, drug dose, history of recent medication changes or duration of treatment, and combination with other CNS (central nervous system) active drugs (the published TMS guidelines review of medications to be considered with TMS)

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Trippel

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: Active rTMS
High frequency rTMS stimulation of the vermis(lobule VII) of the cerebellum.

intermittent Theta Burst (iTBS) pattern (20 trains of 10 bursts given with 8s intervals) will be applied at 80% of active motor threshold. Each participant will receive 600 pulses per session.

Sham participants will undergo the same procedures as those in the active rTMS group.

Andre navn:
  • Transkraniell magnetisk stimulering
  • Ikke-invasiv hjernestimulering
Sham-komparator: Sham rTMS
Sham rTMS to the vermis (lobule VII) of the cerebellum.

intermittent Theta Burst (iTBS) pattern (20 trains of 10 bursts given with 8s intervals) will be applied at 80% of active motor threshold. Each participant will receive 600 pulses per session.

Sham participants will undergo the same procedures as those in the active rTMS group.

Andre navn:
  • Transkraniell magnetisk stimulering
  • Ikke-invasiv hjernestimulering

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change From Baseline on the Positive and Negative Syndrome Scale (PANSS) Positive Subscale
Tidsramme: Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
Therapeutic efficacy was evaluated with the Positive and Negative Syndrome Scale (PANSS) Positive Subscale, a 7 item subscale measuring the presence/absence and severity of positive symptoms of schizophrenia. The minimum score is 7 and the maximum score is 49, with higher values representing greater symptom severity. Change from baseline on the PANSS Positive Subscale can range from -42 to +42; negative values represent an improvement in symptom severity, and positive values represent worsening symptom severity. Therapeutic efficacy was assessed at baseline, after 5 days of treatment, 1 week post treatment, and 3 weeks post treatment.
Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
Change From Baseline on the Positive and Negative Syndrome Scale (PANSS) Negative Subscale
Tidsramme: Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
Therapeutic efficacy was evaluated with the Positive and Negative Syndrome Scale (PANSS) Negative Subscale, a 7 item subscale measuring the presence/absence and severity of negative symptoms of schizophrenia. The minimum score is 7 and the maximum score is 49, with higher values representing greater symptom severity. Change from baseline on the PANSS Negative Subscale can range from -42 to +42; negative values represent an improvement in symptom severity, and positive values represent worsening symptom severity. Therapeutic efficacy was assessed at baseline, after 5 days of treatment, 1 week post treatment, and 3 weeks post treatment.
Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
Change From Baseline on the Positive and Negative Syndrome Scale (PANSS) General Subscale
Tidsramme: Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
Therapeutic efficacy was evaluated with the Positive and Negative Syndrome Scale (PANSS) General Subscale, a 16 item subscale measuring the presence/absence and severity of general psychopathology of schizophrenia. The minimum score is 16 and the maximum score is 112, with higher values representing greater psychopathology severity. Change from baseline on the PANSS General Subscale can range from -96 to +96; negative values represent an improvement in symptom severity, and positive values represent worsening symptom severity. Therapeutic efficacy was assessed at baseline, after 5 days of treatment, 1 week post treatment, and 3 weeks post treatment.
Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
Change From Baseline on the Clinical Global Impression (CGI) Severity of Illness
Tidsramme: Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
Treatment response was evaluated with the Clinical Global Impressions (CGI) Scale, which is comprised of two companion one-item measures that use 7-point scales to evaluate severity of psychopathology and improvement from the initiation of treatment; each component is rated separately and the CGI does not yield a global score. The CGI Severity of Illness is a 7-point subscale in which a clinician rates the severity of the patient's illness at the time of assessment. Ratings range from 1 to 7 and higher values represent more severe psychopathology: 1 indicates a normal and not at all ill patient and 7 indicates among the most extremely ill patients. Change from baseline on the CGI Severity of Illness subscale can range from -6 to +6, with negative values representing an improvement in psychopathology and positive values representing worsening psychopathology. Severity of Illness was assessed at baseline, after 5 days of treatment, 1 week post treatment, and 3 weeks post treatment.
Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
Clinical Global Impression (CGI) Global Improvement
Tidsramme: Last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
Treatment response was evaluated with the Clinical Global Impressions (CGI) Scale, which is comprised of two companion one-item measures that use 7-point scales to evaluate severity of psychopathology and improvement from the initiation of treatment; each component is rated separately and the CGI does not yield a global score. The CGI Global Improvement is a 7-point subscale in which a clinician assesses how much a patient's illness has changed compared to baseline. Ratings range from 1 to 7, with 1 indicating very much improved and 7 indicating very much worse. Change from baseline on the CGI Global Improvement subscale can range from -6 to +6, with negative values representing an improvement in psychopathology and positive values representing worsening psychopathology. Global Improvement was assessed after 5 days of treatment, 1 week post treatment, and 3 weeks post treatment.
Last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change From Baseline on the Calgary Depression Scale for Schizophrenia
Tidsramme: Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment
The Calgary Depression Scale for Schizophrenia is a 9-item scale that assesses depressive symptoms in patients with schizophrenia. Each item is rated separately and ratings range from 0 to 3. Higher values represent more severe depressive symptoms: 0 indicates an absent symptom and 3 indicates a severe symptom. The overall Calgary Depression Scale score is computed by summing each item. The total Calgary Depression Scale score ranges from 0 to 27, with higher values representing more severe depression in patients with schizophrenia. Change from baseline on the Calgary Depression Scale can range from -27 to +27, with negative values representing an improvement in depressive symptoms and positive values representing worsening depressive symptom severity. Depression was assessed at baseline, after 5 days of treatment, 1 week post treatment, and 3 weeks post treatment.
Before treatment (baseline), last day of treatment (after 5 days of treatment), 1 and 3 weeks post treatment

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Samarbeidspartnere

Etterforskere

  • Hovedetterforsker: Mark Halko, Ph.D., Beth Israel Deaconess Medical Center

Publikasjoner og nyttige lenker

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Generelle publikasjoner

Hjelpsomme linker

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. februar 2012

Primær fullføring (Faktiske)

1. november 2015

Studiet fullført (Faktiske)

1. november 2015

Datoer for studieregistrering

Først innsendt

1. mars 2012

Først innsendt som oppfylte QC-kriteriene

9. mars 2012

Først lagt ut (Anslag)

13. mars 2012

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

12. april 2018

Siste oppdatering sendt inn som oppfylte QC-kriteriene

14. mars 2018

Sist bekreftet

1. mars 2018

Mer informasjon

Begreper knyttet til denne studien

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

produkt produsert i og eksportert fra USA

Nei

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