- ICH GCP
- Yhdysvaltain kliinisten tutkimusten rekisteri
- Kliininen tutkimus 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
Tutkimuksen yleiskatsaus
Tila
Opintotyyppi
Ilmoittautuminen (Todellinen)
Vaihe
- Ei sovellettavissa
Yhteystiedot ja paikat
Opiskelupaikat
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Florida
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Tallahassee, Florida, Yhdysvallat, 32304
- The BRAINS Lab in the Department of Psychology at Florida State University
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Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Aikuinen
Hyväksyy terveitä vapaaehtoisia
Kuvaus
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
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Perustiede
- Jako: Satunnaistettu
- Inventiomalli: Rinnakkaistehtävä
- Naamiointi: Ei mitään (avoin tarra)
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
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Kokeellinen: 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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Muut: 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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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Late Positive Potential
Aikaikkuna: 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
Aikaikkuna: 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
Aikaikkuna: 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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Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Delta Power
Aikaikkuna: 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
Aikaikkuna: 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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Yhteistyökumppanit ja tutkijat
Sponsori
Yhteistyökumppanit
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Todellinen)
Ensisijainen valmistuminen (Todellinen)
Opintojen valmistuminen (Todellinen)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
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