- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT03018236
Effekt af N-acetylcystein på alkohol- og kokainbrugsforstyrrelser: Et dobbeltblindt randomiseret kontrolleret forsøg.
Effekten af N-acetylcystein (NAC) på behandling af alkohol- og kokainbrugsforstyrrelser: Et dobbeltblindt randomiseret kontrolleret forsøg.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
N-acetylcystein virker ved at genopbygge den menneskelige krops glutathionlagre. Glutathion er et vigtigt antioxidantmiddel og modulerer også den N-methyl-D-aspartat (NMDA) glutamaterge receptor. Glutamat er blevet forbundet med neuroadaptation relateret til stofbrugsforstyrrelser, og det anses derfor som et potentielt mål for farmakologiske indgreb vedrørende disse lidelser. N-acetylcystein interagerer også med cystin-glutamat-antiporteren på astrocytter og øger dermed glutamatfrigivelsen i det ekstracellulære rum.
N-acetylcystein-effekter og dets implikationer i afhængighedsforstyrrelser er blevet undersøgt indledningsvis med dyremodeller. Normalisering af glutamatniveauer gennem N-acetylcystein reducerede kompulsiv lægemiddel-selvadministration og lægemiddel-søgende adfærd hos mus. Derudover er der lovende resultater også med mennesker, der viser fordele for kokain-, alkohol- og cannabisbrugsforstyrrelser.
Denne undersøgelse består af et randomiseret, dobbeltblindt, placebokontrolleret forsøg med fire arme: alkoholbrugere opdelt i NAC vs Placebo og kokainbrugere inddelt i NAC vs. Placebo.
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Fase 4
Kontakter og lokationer
Studiesteder
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RS
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Porto Alegre, RS, Brasilien, 90420-020
- Rekruttering
- Hospital de Clinicas de Porto Alegre - Unidade Alvaro Alvim
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Kontakt:
- Thiago C Hartmann, MsC
- Telefonnummer: +55 51 3359 6476
- E-mail: hartmann321@yahoo.com.br
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inklusionskriterier:
- Diagnosticering af alkohol- eller kokainbrugsforstyrrelser
- Syv dages indlæggelsesbehandling i en specialiseret afdeling for misbrugsbehandling
Ekskluderingskriterier:
- En anden stofbrugsforstyrrelse (undtagelse: tobak)
- Alvorlige medicinske tilstande (hjerte-, nyre- eller lever), der udelukker forsøgspersonens deltagelse
- Anamnese med brug af medicin mod astma eller kramper
- Nylig brug (
- Anamnese med anafylaktiske reaktioner med undersøgelsesmedicinen
- Selvmordsrisiko
- Manglende evne til at forstå den informerede samtykkeformular eller til at overholde undersøgelseskravene
- Enhver alvorlig neuropsykiatrisk tilstand, der ikke er forårsaget af stoffet, som kræver specifik medicinbehandling og kan forstyrre undersøgelsens udvikling, efter efterforskernes mening (for eksempel: demens, skizofreni eller andre psykoser, multipel sklerose, svær depression, slagtilfælde, epilepsi, maniodepressiv)
- Undladelse af at gennemføre screeningsprocedurerne før undersøgelsen første uge
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Firedobbelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Eksperimentel: Alkohol N-acetylcystein
600 mg N-acetylcystein kapsel gennem munden, hver 12. time i 8 uger
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1200 mg NAC om dagen, taget i to doser, til personer med alkoholmisbrug
Andre navne:
|
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Placebo komparator: Alkohol placebo
En placebo-kapsel, der matcher farven og lugten af den aktive medicin
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Melpiller, der ser nøjagtig det samme ud som det aktive stof til personer med alkoholmisbrug
|
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Eksperimentel: Kokain N-acetylcystein
600 mg N-acetylcystein kapsel gennem munden, hver 12. time i 8 uger
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1200 mg NAC om dagen, taget i to doser, til forsøgspersoner med kokainbrugsforstyrrelser
Andre navne:
|
|
Placebo komparator: Kokain placebo
En placebo-kapsel, der matcher farven og lugten af den aktive medicin
|
Melpiller ser nøjagtigt ud som det aktive stof til personer med kokainbrugsforstyrrelser
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Antal deltagere, der deltog i alle studieaftaler
Tidsramme: 8 uger
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Fuldførere (dvs.
forsøgspersoner, der deltog i alle studieaftaler) vs ikke-fuldførte
|
8 uger
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Afholdenhed ved urin
Tidsramme: 8 uger
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Mængde positive urinprøver for kokainbrugere
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8 uger
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Afholdenhed ved alkometer
Tidsramme: 8 uger
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Mængde positive alkometertest for alkoholbrugere
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8 uger
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Afholdenhed ved selvrapportering
Tidsramme: 8 uger
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Timeline Followback Metode
|
8 uger
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Dage med døgnbehandling
Tidsramme: Op til 4 uger
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Forskellen (hvis nogen) mellem placebo- og interventionsgrupper i antallet af døgnbehandlingsdage.
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Op til 4 uger
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Ændring i score af CGI
Tidsramme: 8 uger
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Forskelle i score for Clinical Global Impression (CGI)
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8 uger
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Ændring i score på FAST
Tidsramme: 8 uger
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Forskelle i score for den korte test af funktionsvurdering (FAST).
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8 uger
|
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Depressive symptomer
Tidsramme: 8 uger
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Forskelle i scores af Beck Depression Inventory (BDI)
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8 uger
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Angst symptomer
Tidsramme: 8 uger
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Forskelle i scores af Beck Anxiety Inventory (BAI)
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8 uger
|
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BDNF
Tidsramme: 8 uger
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Forskelle mellem grupper med hensyn til dosering af Brain Derived Neurotrophic Factor (BDNF)
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8 uger
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GSSG
Tidsramme: 8 uger
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Forskelle mellem grupper med hensyn til dosering af oxideret glutathion (GSSG)
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8 uger
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GSH
Tidsramme: 8 uger
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Forskelle mellem grupper med hensyn til dosering af glutathion (GSH)
|
8 uger
|
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GPx
Tidsramme: 8 uger
|
Forskelle mellem grupper med hensyn til dosering af glutathionperoxidase (GPx)
|
8 uger
|
|
KAT
Tidsramme: 8 uger
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Forskelle mellem grupper med hensyn til dosering af Catalase (CAT)
|
8 uger
|
|
TBARS
Tidsramme: 8 uger
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Forskelle mellem grupper med hensyn til dosering af thiobarbitursyrereaktive stoffer (TBARS)
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8 uger
|
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SOD
Tidsramme: 8 uger
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Forskelle mellem grupper med hensyn til dosering af Superoxid Dismutase (SOD)
|
8 uger
|
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Carbonyl
Tidsramme: 8 uger
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Forskelle mellem grupper med hensyn til dosering af Carbonyl
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8 uger
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Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Uønskede hændelser
Tidsramme: 8 uger
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Systematisk vurdering for behandling af emergent hændelser (SAFTEE) ansøgning
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8 uger
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Samarbejdspartnere og efterforskere
Samarbejdspartnere
Efterforskere
- Studiestol: Lisia von Diemen, PhD, Federal University of Rio Grande do Sul (UFRGS)
- Ledende efterforsker: Flavio Pechansky, PhD, Federal University of Rio Grande do Sul (UFRGS)
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Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Forventet)
Studieafslutning (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
- Psykiske lidelser
- Kemisk inducerede lidelser
- Alkohol-relaterede lidelser
- Stof-relaterede lidelser
- Kompulsiv adfærd
- Impulsiv adfærd
- Alkoholisme
- Adfærd, vanedannende
- Kokain-relaterede lidelser
- Lægemidlers fysiologiske virkninger
- Neurotransmittermidler
- Molekylære mekanismer for farmakologisk virkning
- Anti-infektionsmidler, lokale
- Anti-infektionsmidler
- Depressive midler til centralnervesystemet
- Agenter fra det perifere nervesystem
- Antivirale midler
- Sensoriske systemagenter
- Bedøvelsesmidler
- Beskyttelsesagenter
- Neurotransmitter optagelseshæmmere
- Membrantransportmodulatorer
- Dopaminmidler
- Bedøvelsesmidler, lokale
- Respiratoriske midler
- Dopaminoptagelseshæmmere
- Antioxidanter
- Modgift
- Frie radikale scavengers
- Ekspektoranter
- Vasokonstriktormidler
- Ethanol
- Acetylcystein
- N-monoacetylcystin
- Kokain
Andre undersøgelses-id-numre
- 150488
Plan for individuelle deltagerdata (IPD)
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