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Funktionel neuroimaging af alkoholisme-sårbarhed: Undersøgelse af glutamat og belønning ved brug af mGluR5-hæmmeren Mavoglurant

23. september 2026 opdateret af: Godfrey Pearlson, Yale University

Funktionel neuroimaging af alkoholismesårbarhed: Undersøgelse af glutamat og belønning ved brug af mGluR5-hæmmeren Mavoglurant

The purpose of this study is to evaluate the role of Mavoglurant in clarifying the neurobiology of alcoholism risk. This is a one-site, randomized, within subjects, counterbalanced double-blind study of a single dose (200mg) of Mavoglurant and placebo.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This project explores the effects of 1 dose of Mavoglurant, an experimental non-competitive antagonist to metabotropic glutamate receptor-5 (mGlur5) developed by Novartis, in a double-blind, randomized, counterbalanced manner on alcoholism risk-relevant tasks. Drug/placebo will be administered on 2 separate visits separated by 1 week. More specifically, this project examines 4 functional MRI tasks related to different aspects of reward and/or impulsivity-related behavior in different contexts, compares the underlying neural circuitry across tasks, and uses a pharmacologic probe of the glutamatergic system to examine N-methyl-D-Aspartate and Dopamine (NMDA/DA) interactions. The combined measures provide the opportunity to advance our understanding of specific aspects of brain function related to familial alcoholism vulnerability in an already well characterized population as some members evolve into alcohol abuse. In addition, as well as conventional within-task analyses, functional network connectivity and allied approaches will be used to examine brain networks across the tasks.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

78

Fase

  • Tidlig fase 1

Kontakter og lokationer

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

Studiesteder

    • Connecticut
      • Hartford, Connecticut, Forenede Stater, 06106
        • Hartford Hospital

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

18 år til 45 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Ages 18-45 years
  • Estimated full-scale IQ>70
  • Individual can cooperate with all study procedures
  • No history of neurological disorder (e.g., epilepsy)
  • No major medical condition (e.g., cancer)
  • No history of significant head trauma
  • Stable medication treatment 6 weeks prior to study enrollment
  • Negative urine drug and breathe alcohol test at time of MRI scan
  • Negative urine pregnancy test at time of MRI scan
  • No MR contra-indications (e.g., in-body metal implant, severe claustrophobia)
  • No contra-indications to study drug

Exclusion Criteria:

  • A diagnosis of any psychotic disorder, or current mood or anxiety disorders under DSM-V, using the SCID-V-RV psychiatric interview
  • A current diagnosis of: a) Alcohol use disorder, if severe (AUD, mild or moderate OK if no craving, tolerance, and withdrawal 3 months prior to interview) b) Substance use disorder
  • Report of psychotic disorder in a 1º relative
  • Auditory or visual impairment that interferes with test-taking
  • Prenatal exposure to alcohol plus currently meeting criteria for features of fetal alcohol syndrome
  • Not speaking English fluently or being a non-native English speaker, or being educated in a primary language other than English > grade 1
  • Intellectual Disability (Full Scale IQ<70)
  • Traumatic brain injury with loss of consciousness > 30 minutes or concussion in last 30 days
  • Presence or history of neurosurgery or any neurologic illness that may affect brain physiology (e.g., epilepsy, Multiple Sclerosis), including focal brain lesion seen on structural MRI (all structural scans are read by a board certified radiologist)
  • A current major medical condition (e.g. cancer, heart failure)
  • Current pregnancy (all females will be tested with urine screens on the day of MRI)
  • Women not on an effective form of birth control/contraception or abstinent during time of study visits to prevent exposure of the investigational drug to suspected fetus
  • Current substance use with the exception of marijuana (THC), provided last use of THC was 24+ hours before visit (All participants will receive a urine screen for the presence of marijuana, cocaine, opiates and a breath screen to detect the presence of alcohol)
  • Inability to comprehend the consent form appropriately
  • Inability to cooperate with study procedures
  • Other specific fMRI exclusions include metal devices, clips or fragments in body (orbital xray performed if needed)

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: FHP; Mavoglurant-Placebo

Family History Positive (FHP) for alcoholism will be given a single dose of AFQ056 (200 mg) then placebo in two separate experimental study visits separated by 1 week. Drug and Placebo administered 2 hours prior to the MRI and other measures.

Two 100mg tablets of Mavoglurant will be administered on the morning of one of the two experimental days by a RN or the physician investigator.

Two matching tablets of placebo will be administered on the morning of one of the two experimental days by an RN or the physician investigator.

Eksperimentel: FHP; Placebo-Mavoglurant

Family History Positive (FHP) or alcoholism will be given a single dose of placebo then AFQ056 (200 mg) in two separate experimental study visits separated by 1 week. Drug and Placebo administered 2 hours prior to the MRI and other measures.

Two 100mg tablets of Mavoglurant will be administered on the morning of one of the two experimental days by a RN or the physician investigator.

Two matching tablets of placebo will be administered on the morning of one of the two experimental days by an RN or the physician investigator.

Eksperimentel: FHN; Mavoglurant-Placebo

Family History Negative (FHN) for alcoholism will be given a single dose of AFQ056 (200 mg) then placebo in two separate experimental study visits separated by 1 week. Drug and Placebo administered 2 hours prior to the MRI and other measures.

Two 100mg tablets of Mavoglurant will be administered on the morning of one of the two experimental days by a RN or the physician investigator.

Two matching tablets of placebo will be administered on the morning of one of the two experimental days by an RN or the physician investigator.

Eksperimentel: FHN; Placebo-Mavoglurant

Family History Negative (FHN) for alcoholism will be given a single dose of placebo then AFQ056 (200 mg) in two separate experimental study visits separated by 1 week. Drug and Placebo administered 2 hours prior to the MRI and other measures.

Two 100mg tablets of Mavoglurant will be administered on the morning of one of the two experimental days by a RN or the physician investigator.

Two matching tablets of placebo will be administered on the morning of one of the two experimental days by an RN or the physician investigator.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in Nucleus accumbens (Nacc)/Ventral striatum (VS) BOLD activation during A1 phase in FHP on study medication vs. placebo
Tidsramme: Mavoglurant and Placebo administration are 1 week apart

Changes in NAcc/VS BOLD (Blood-oxygen-level-dependent) activation during the A1 loss anticipation prospect phase of the MRI Monetary Incentive Delay task in FHP while on mavoglurant compared to placebo

Mavoglurant and Placebo administration are 1 week apart
BOLD activation to alcohol vs. non-alcohol stimuli during ACR task alcohol versus non-alcohol stimuli
Tidsramme: Mavoglurant and Placebo administration are 1 week apart

Changes in BOLD response in FHP to alcohol versus non-alcohol stimuli in several brain clusters containing MFC, caudate, parahippocampal gyrus, temporal cortex and cerebellum, when administered mavoglurant compared to placebo

Mavoglurant and Placebo administration are 1 week apart

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Dynamic Causal Modeling (DCM)-determined relationships between nucleus accumbens (NAcc) and -medial PFC BOLD signal during MSDM task
Tidsramme: Mavoglurant and Placebo administration are 1 week apart

Dynamic Causal Modeling (DCM)-determined relationships between nucleus accumbens (NAcc) and -medial PFC BOLD signal during MSDM fMRI task in FHP while on mavoglurant compared to placebo

Mavoglurant and Placebo administration are 1 week apart
Regional differences in BOLD signal
Tidsramme: Mavoglurant and Placebo administration are 1 week apart

Impairment of top down inhibitory control and related cortical activation of the executive control network in FHP while on mavoglurant compared to placebo measured by regional differences in BOLD signaling

Mavoglurant and Placebo administration are 1 week apart

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Godfrey D Pearlson, MD, Yale University

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 (Faktiske)

17. maj 2022

Primær færdiggørelse (Faktiske)

31. maj 2026

Studieafslutning (Faktiske)

31. maj 2026

Datoer for studieregistrering

Først indsendt

5. januar 2022

Først indsendt, der opfyldte QC-kriterier

10. januar 2022

Først opslået (Faktiske)

24. januar 2022

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

24. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

23. september 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • HHC-2021-0006
  • 2P50AA012870-21 (U.S. NIH-bevilling/kontrakt)
  • 2000032425 (Anden identifikator: Yale IRB)

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

produkt fremstillet i og eksporteret fra U.S.A.

Ja

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