NCT03154580

Brief Summary

The purpose of the proposed study is to examine the relationship between marijuana reminders, or "cues", craving for marijuana, and marijuana use. The principal investigator is also assessing whether N-acetylcysteine, can reduce marijuana craving or use.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
21

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started May 2017

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 25, 2017

Completed
6 days until next milestone

Study Start

First participant enrolled

May 1, 2017

Completed
15 days until next milestone

First Posted

Study publicly available on registry

May 16, 2017

Completed
6.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 27, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 27, 2023

Completed
Last Updated

April 23, 2024

Status Verified

April 1, 2024

Enrollment Period

6.2 years

First QC Date

April 25, 2017

Last Update Submit

April 22, 2024

Conditions

Outcome Measures

Primary Outcomes (11)

  • Marijuana Craving Visual Analog Scale (VAS) (Self-report measure)

    Change is being assessed. Marijuana Craving VAS administered at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1250, 1310, 1320, 1330, 1345, 1400, 1430, 1500, 1530, and 1600.

  • Marijuana Craving Questionnaire (Self-report measure)

    Change is being assessed. Marijuana Craving Quest.administered at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

  • Marijuana Rating Form (Self-report measure)

    Change is being assessed. Marijuana Rating Form administered at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

  • Subjective Effects Scale Visual Analog Scale (VAS) (Self-report measure)

    Change is being assessed. Subjective Effects Scale administered at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

  • Questionnaire of Smoking Urges (Self-report measure)

    Change is being assessed. Questionnaire is administered at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

  • Marijuana Withdrawal Checklist

    Change is being assessed. Questionnaire is administered at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

  • NAC Side Effect Checklist

    Change is being assessed. Questionnaire is administered at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

  • Systolic blood pressure (physiological effects)

    Change is being assessed. Systolic blood pressure measured at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

  • Diastolic blood pressure (physiological effects)

    Change is being assessed. Diastolic blood pressure measured at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

  • Heart rate (physiological effects)

    Change is being assessed. Heart rate measured at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

  • Core-body temperature (physiological effects)

    Change is being assessed. Core-body temperature measured at baseline 0900, at 0930, 1000, 1030, 1100, 1230, 1345, 1400, 1430, 1500, 1530, and 1600.

Study Arms (4)

N-acetylcysteine 0mg X Cue Exposure (neutral)

PLACEBO COMPARATOR
Drug: N-acetyl cysteine

N-acetylcysteine 0mg X Cue Exposure (marijuana)

PLACEBO COMPARATOR
Drug: N-acetyl cysteine

N-acetylcysteine 2400mg X Cue Exposure (neutral)

ACTIVE COMPARATOR
Drug: N-acetyl cysteine

N-acetylcysteine 2400mg X Cue Exposure (marijuana)

ACTIVE COMPARATOR
Drug: N-acetyl cysteine

Interventions

Participants will receive 4 capsules at 11:15am on each experimental session day.

N-acetylcysteine 0mg X Cue Exposure (marijuana)N-acetylcysteine 0mg X Cue Exposure (neutral)N-acetylcysteine 2400mg X Cue Exposure (marijuana)N-acetylcysteine 2400mg X Cue Exposure (neutral)

Eligibility Criteria

Age21 Years - 55 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Participants will be healthy individuals 21-55 year olds who use marijuana.
  • Marijuana use will be verified by self-report and THC-positive urine samples. -Participants must meet DSM 5 criteria for Cannabis Use Disorder and be willing to participate in research but not seeking treatment.

You may not qualify if:

  • Candidates with the following conditions will be excluded:
  • Serious psychiatric illness (e.g. psychotic or bipolar disorder
  • Recent (past 5 years) suicide attempts
  • Major depression that is not substance-induced)
  • Substance Use Disorders (SUD) other than Cannabis or Nicotine Use Disorders and Mild Alcohol Use Disorder
  • Neurological diseases (e.g. stroke, seizures)
  • Cardiovascular problems (e.g. myocardial infarction, angina, systolic BP \>160 or \<95 mmHg, diastolic BP \>95 mmHg, clinically abnormal ECG)
  • Pulmonary diseases (e.g. asthma, TB)
  • Systemic diseases (e.g. hepatitis, autoimmune, Cushing syndrome)
  • Cognitive impairment (\<80 IQ)
  • Past-month exposure to medications that increase study risk (e.g. toxicity to major organs, asthma inhalers)
  • Women who are pregnant (urine HCG), lactating (self-report), or if heterosexually active and not using (self-report) medically approved birth control measures (oral/depot contraceptives, IUD, condom/foam, sterilization, tubal ligation)
  • Seeking treatment for a Substance Use Disorder.
  • Individuals unable to give voluntary informed consent will be excluded. Applicants interested in treatment will be excluded from the study and referred to a treatment program.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tolan Park Medical Building

Detroit, Michigan, 48201, United States

Location

MeSH Terms

Conditions

Marijuana Abuse

Interventions

Acetylcysteine

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

CysteineAmino Acids, SulfurSulfur CompoundsOrganic ChemicalsAmino AcidsAmino Acids, Peptides, and Proteins

Study Officials

  • Leslie Lundahl, PhD

    Wane State University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

April 25, 2017

First Posted

May 16, 2017

Study Start

May 1, 2017

Primary Completion

June 27, 2023

Study Completion

June 27, 2023

Last Updated

April 23, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations