Clavulanic Acid Decreases Cocaine Cue Reactivity in Addiction-Related Brain Areas, a Randomized fMRI Pilot Study

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Background: Preclinical studies show that clavulanic acid (CLAV) inhibits cocaine self-administration. This study investigates the effect of CLAV on regions of brain activation in response to cocaine cues during functional magnetic resonance imaging (fMRI) in participants with cocaine use disorder (CUD).

Methods: A double-masked, placebo-controlled clinical trial with thirteen individuals with severe CUD who were randomized to treatment with CLAV (N = 10, 9 completers) 500 mg/day or matched placebo (PBO) (N = 3) for 3 days. fMRI was used to assess brain reactivity to 18 alternating six-second video clips of cocaine or neutral scenes. In this paradigm, participants were exposed to three different stimulus conditions: NEUTRAL, WATCH (passive watching), and DOWN (actively inhibiting craving while watching).

Results: Participants who received CLAV demonstrated a significant reduction in brain activity in the anterior cingulate gyrus (p = 0.009) and the caudate (p = 0.018) in response to DOWN cocaine cues. There was a trend toward lessened cue reactivity in other regions implicated in CUD.

Conclusion: CLAV reduced the response of the brain regions associated with motivation and emotional response during the DOWN condition compared to PBO, suggesting CLAV may strengthen voluntary efforts to avoid cocaine use. This pilot data supports the use of CLAV for CUD. (Trial registered in ClinicalTrials.gov NCT04411914).

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:54

Enthalten in:

Psychopharmacology bulletin - 54(2024), 2 vom: 04. Apr., Seite 8-14

Sprache:

Englisch

Beteiligte Personen:

Callans, Linda S [VerfasserIn]
Philogene-Khalid, Helene [VerfasserIn]
Jagannathan, Kanchana [VerfasserIn]
Cunningham, Ronan [VerfasserIn]
Yu, Daohai [VerfasserIn]
Lu, Xiaoning [VerfasserIn]
Walters, M Ingre [VerfasserIn]
Morrison, Mary F [VerfasserIn]

Themen:

23521W1S24
Anterior cingulate gyrus
Caudate nucleus
Clavulanic Acid
Clavulanic acid
Cocaine
Cocaine-related disorders
Craving
Cues
Functional magnetic resonance imaging
I5Y540LHVR
Journal Article
Randomized Controlled Trial

Anmerkungen:

Date Completed 12.04.2024

Date Revised 12.04.2024

published: Print

ClinicalTrials.gov: NCT04411914

Citation Status MEDLINE

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370911563