- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT07746440
Impact of Cannabis Use and Abstinence on Emotion (ICAE)
Impact of Cannabis Withdrawal and Early Abstinence on Threat and Reward Processing
The goal of this experimental study is to test how three weeks of cannabis abstinence impacts threat and reward processing in females with Cannabis Use Disorder. The main questions it aims to answer are:
Compared to using cannabis as usual, will cannabis cue reactivity increase throughout three weeks of abstinence from cannabis?
Compared to using cannabis as usual, will threat reactivity be elevated at weeks 1 and 2 of abstinence followed by a decrease at week 3 of abstinence?
Compared to using cannabis as usual, will non-drug reward reactivity be lower at weeks 1 and 2 of abstinence followed by an increase at week 3 of abstinence?
Compared to successful 3-week abstainers, will threat, non-drug reward, and cannabis cue reactivity differ in relapsers?
Researchers will compare females with CUD who abstain from cannabis for three weeks to those who continue to use cannabis as usual to see how cannabis abstinence impacts threat and reward processing.
Participants will:
Be randomly assigned to continue using cannabis as usual or abstain from cannabis for three weeks Visit the lab 6 times over three weeks, followed by a 1-month follow-up lab visit for the participants assigned to the cannabis abstinence condition Complete phone surveys every other day across the three week study period
Panoramica dello studio
Stato
Condizioni
Tipo di studio
Iscrizione (Effettivo)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
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Florida
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Tallahassee, Florida, Stati Uniti, 32304
- The BRAINS Lab in the Department of Psychology at Florida State University
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Adulto
Accetta volontari sani
Descrizione
Inclusion Criteria:
- >=5 cannabis use days per week on average over the past 3 months
- Female
- >=6 past-year CUD symptoms (must include withdrawal and at least one criterion other than craving must be met within the past 3 months)
- >=20 days of cannabis use over the past 30 days
- Positive urinalysis for THC
- Cannabis is primary substance of abuse
Exclusion Criteria:
- Current pregnancy
- History of psychotic, seizure, or cardiovascular disorder
- Immediate plan to quit cannabis
- Current treatment for cannabis use
- Current daily psychotropic medication use
- Lotion allergy
- Positive urinalysis for any drug other than THC
- CSRSS >= 4
- Current moderate (4+ criteria) or severe (6+ criteria) substance use disorder (SUD) other than CUD or nicotine dependence
- CBD use >= 9 days
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Scienza basilare
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
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Sperimentale: Contingency Management for Cannabis Abstinence and Lab Visit Attendance
Participants randomly assigned to this arm will receive contingency management for three weeks to reinforce sustained abstinence from cannabis and attendance at all lab visits.
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Escalating monetary reinforcement is provided for continuous cannabis abstinence and lab visit attendance across the three week study period.
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Altro: Contingency Management for Lab Visit Attendance
Participants randomly assigned to this arm will receive contingency management for three weeks to reinforce attendance at all lab visits.
Participants will continue to use cannabis as usual.
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Escalating monetary reinforcement is provided for lab visit attendance across the three week study period.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Late Positive Potential
Lasso di tempo: Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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The Late Positive Potential (neural measure recorded via electroencephalography) will be quantified from ~400 to 3000ms at central-parietal sensors relative to the onset of a cannabis, neutral, unpleasant, or pleasant image.
The Late Positive Potential to cannabis vs. neutral and cannabis vs. pleasant will be the primary contrasts of interest.
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Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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Reward Positivity
Lasso di tempo: Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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The Reward Positivity (neural measure recorded via electroencephalography) will be quantified from ~200-300ms at frontal-central sensors relative to the onset of monetary win and loss feedback.
The win vs. loss contrast will be the primary outcome of interest.
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Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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Eyeblink Startle Response
Lasso di tempo: Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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The Eyeblink Startle Response (recorded via EMG sensors) will be quantified as the peak blink amplitude relative to the onset of an auditory startle probe during blocks with predictable shocks, unpredictable shocks, and no threat of shock.
The Eyeblink Startle Response during unpredictable shock threat vs. no shock threat will be the primary contrast of interest.
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Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Delta Power
Lasso di tempo: Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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Delta Power (neural time-frequency measure recorded via electroencephalography) will be quantified as event-related spectral power from 1-3.5Hz at frontal-central sensors relative to the onset of monetary win and loss feedback.
The win vs. loss contrast will be the primary outcome of interest.
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Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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Delta Intertrial Phase Coherence
Lasso di tempo: Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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Delta Intertrial Phase Coherence (neural time-frequency measure recorded via electroencephalography) will be quantified as intertrial phase coherence of 1-3.5Hz oscillations at frontal-central sensors relative to the onset of monetary win and loss feedback.
The win vs. loss contrast will be the primary outcome of interest.
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Baseline, Week 1, Week 2, Week 3, and (for contingency management abstinence group only) One-Month Follow-Up
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Collaboratori e investigatori
Sponsor
Collaboratori
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Studia le date principali
Inizio studio (Effettivo)
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Altri numeri di identificazione dello studio
- AUIRB#20-217FB
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