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Transcranial Direct Current Stimulation in Patients With Disorders of Consciousness (tDCS in DOC)

12. maj 2014 opdateret af: Aurore Thibaut, University of Liege

Transcranial Direct Current Stimulation in Patients With Disorders of Consciousness: a Sham-controlled Randomised Double Blind Study

Previous studies showed that anodal transcranial direct current stimulation (tDCS) applied to the left dorsolateral prefrontal (DLPF) cortex transiently improves performance of memory and attention. Investigator assessed the effects of left DLPF-tDCS on Coma Recovery Scale-Revised (CRS-R) scores in severely brain damaged patients with disorders of consciousness in a double-blind sham-controlled experimental design.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Following severe brain damage and coma, some patients may remain in a vegetative state (VS) or minimally conscious state (MCS). At present, there are no evidence-based guidelines regarding the treatment of patients with disorders of consciousness (DOC).

Investigator aim to assess the effect of single session anodal (i.e., excitatory) transcranial direct current stimulation (tDCS) of the left dorsolateral prefrontal cortex (DLPF) on the level of consciousness in DOC patients in a double blind randomized sham controlled study.

tDCS is a form of safe non-invasive cortical stimulation, modulating cortical excitability at stimulation sites via weak polarizing currents, previously reported to transiently improve working memory and attention by stimulating the left DLPF in healthy subjects and patients with stroke, Parkinson's or Alzheimer's disease.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

55

Fase

  • Fase 2

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Belgien
      • Liège, Belgien, 4000
        • University Hospital of Liege

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

15 år til 75 år (Barn, Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • post-comatose patients
  • patients in vegetative/unresponsive or minimally conscious state
  • patients with stable cardiorespiratory parameters
  • patients free of sedative drugs and Na+ or Ca++ channel blockers (e.g., carbamazepine) or NMDA receptor antagonists (e.g., dextromethorphan)

Exclusion Criteria:

  • premorbit neurology antecedent
  • patients in coma or <1week after the acute brain insult
  • patients with a metallic cerebral implant or a pacemaker (in line with the safety criteria for tDCS in humans)

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Tredobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Anodal tDCS
Patients received anodal tDCS (on DLPF cortex) during 20 minutes preceded and followed by a clinical assessment (Coma Recovery Scale-Revised)
Enhed: Anodal tDCS
patients received anodal tDCS (on PFDL cortex) during 20 minutes preceded and followed by a behavioral assessment (Coma Recovery Scale Revised)
Sham-komparator: sham tDCS
Patient received a sham tDCS (5sec of stimulation). The device runs during 20minutes and the anode was placed over the DLPF cortex. A behavioral assessment preceded and followed the stimulation.
Enhed: sham tDCS
Patient received a sham tDCS (5sec of stimulation). The device runs during 20minutes and the anode was placed over the DLPF cortex. A behavioral assessment preceded and followed the stimulation.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in CRS-R Total Scores
Tidsramme: Baseline and directly after the tDCS (20 minutes)

At the group level, assess the modification of CRS-R total scores in anodal tDCS as compared to sham stimulation in VS/UWS and MCS populations

The Coma Recovery Scale Revised (CRS-R) is a behavioral scale performed at the patient's bedside. It consists of 23 hierarchically arranged items that comprise 6 subscales addressing auditory, visual, motor, verbal, communication, and arousal functions.

Scoring is based on the presence or absence of specific behavioral responses to sensory stimuli administered in a standardized manner. Maximum scores of each subscale are summed to obtain the total score (from 0 to 23).

The lowest item on each subscale represents reflexive activity, whereas the highest items represent cognitively mediated behaviors.
Baseline and directly after the tDCS (20 minutes)

Sekundære resultatmål

Resultatmål
Tidsramme
Influence of Diagnosis on the Results
Tidsramme: participants will be followed for the duration of 1 year
participants will be followed for the duration of 1 year
Influence of Etiology on the Results
Tidsramme: participants will be followed for the duration of 1 year
participants will be followed for the duration of 1 year
Influence of Time Since Insult on the Results
Tidsramme: participants will be followed for the duration of 1 year
participants will be followed for the duration of 1 year

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of Liege

Efterforskere

  • Studiestol: Steven Laureys, MD, PhD, Coma Science Group, Cyclotron Research Centre, University and University Hospital of Liège

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. januar 2010

Primær færdiggørelse (Faktiske)

1. august 2010

Studieafslutning (Faktiske)

1. december 2011

Datoer for studieregistrering

Først indsendt

14. august 2012

Først indsendt, der opfyldte QC-kriterier

23. august 2012

Først opslået (Skøn)

27. august 2012

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

9. juni 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. maj 2014

Sidst verificeret

1. maj 2014

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2009/201

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Bevidsthedsforstyrrelser

Kliniske forsøg med Anodal tDCS

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Uruguay

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner