NCT00613405

Brief Summary

The purpose of this study is to explore the interaction between stress and marijuana cues, in hopes that it may lead to the development of new treatments for marijuana dependence.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
87

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2008

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

Study Start

First participant enrolled

January 1, 2008

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

February 11, 2008

Completed
2 days until next milestone

First Posted

Study publicly available on registry

February 13, 2008

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2009

Completed
3 years until next milestone

Results Posted

Study results publicly available

May 4, 2012

Completed
Last Updated

April 30, 2013

Status Verified

April 1, 2013

Enrollment Period

1.3 years

First QC Date

February 11, 2008

Results QC Date

June 15, 2011

Last Update Submit

April 23, 2013

Conditions

Keywords

substance-related disorders

Outcome Measures

Primary Outcomes (1)

  • Subjective Craving of Marijuana

    Defined as the score on the Marijuana Craving Questionnaire (MCQ), range 7-84, higher scores indicate more craving

    approx 2.5 hours (before, during and after exposure to stressor condition as well as exposure to neutral and marijuana-associated cues).

Secondary Outcomes (3)

  • Physiological Assessments: Serum Cortisol, ACTH, BP, HR, and GSR

    ~ 2.5 hours (before, during and after exposure to stressor condition as well as exposure to neutral and marijuana-associated cues).

  • Feelings of Stress/Anxiety as Measured by the State-Trait Inventory (STAI)

    ~2 hours

  • Current Mood as Assessed by the Mood Form

    ~2 hours

Study Arms (2)

Stress + cue exposure

EXPERIMENTAL

Individuals were exposed to the Trier Social Stress Test (TSST) as well as neutral cues and marijana cues.

Other: Stress + cue exposure

No stress + cue exposure

EXPERIMENTAL

Individuals were not exposed to a stress test, but were exposed to neutral cues and marijuana cues.

Other: No stress + cue exposure

Interventions

Trier Social Stress Task(TSST): subject is asked to give a talk and perform a math task in front of an audience, follwed by neutral and marijuana cue exposure.

Also known as: Stress stask, TSST
Stress + cue exposure

Neutral and marijuana-associated cue exposure (scripted imagery, in vivo cues).

Also known as: marijuana cue exposure, neutral cue exposure
No stress + cue exposure

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Meets Diagnostic and Statistical Methods (DSM)-IV Criteria for Marijuana Dependence
  • Between the ages of 18 and 65
  • Must abstain from marijuana use the day of testing and other drug use three days prior to testing

You may not qualify if:

  • Must not be taking any psychoactive medication, or medication that alters the hypothalamic pituitary adrenal (HPA) Axis functioning
  • Must not be taking any medications that alter heart rate or skin conductance monitoring
  • Cannot meet criteria for current major Axis I disorder (may alter response to stress)
  • Cannot be morbidly obese (Body Mass Index \>39)
  • Cannot meet current abuse or dependence criteria of other substances in past 90 days
  • Must not have a medical condition that impacts HPA functioning (Hypertension, chronic pain, Addison's disease)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of South Carolina

Charleston, South Carolina, 29425, United States

Location

MeSH Terms

Conditions

Substance-Related Disorders

Interventions

Psychological Tests

Condition Hierarchy (Ancestors)

Chemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Behavioral Disciplines and Activities

Limitations and Caveats

A control group of non-marijuana dependent individuals was not included, which may have provided further insight into the interactions of stress and cues both in the presence and absence of addiction.

Results Point of Contact

Title
Aimee McRae-Clark, PharmD
Organization
Medical University of South Carolina

Study Officials

  • Aimee L McRae, PharmD, BCPP

    Medical University of South Carolina

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Psychiatry

Study Record Dates

First Submitted

February 11, 2008

First Posted

February 13, 2008

Study Start

January 1, 2008

Primary Completion

May 1, 2009

Study Completion

May 1, 2009

Last Updated

April 30, 2013

Results First Posted

May 4, 2012

Record last verified: 2013-04

Locations