Cognitive Behavioral Therapy and the Nicotine Transdermal Patch for Cannabis Dependence and Nicotine Dependence (CBT-MJ-NIC)

August 13, 2013 updated by: Kevin P. Hill, MD, MHS, Mclean Hospital
The investigators are conducting a Stage 1 pilot feasibility study at McLean Hospital to develop and refine a Cognitive Behavioral Therapy (CBT) intervention. The investigators aim to develop a feasible 10-week integrated CBT intervention for the treatment of concurrent marijuana dependence and nicotine dependence. The investigators hypothesize that the CBT intervention, in conjunction with Nicotine Replacement Therapy (NRT) in the form of a transdermal nicotine patch, will reduce the use of marijuana and nicotine.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The investigators will conduct a Stage 1 pilot feasibility study at McLean Hospital to develop and refine a Cognitive Behavioral Therapy (CBT) intervention. Twelve subjects (50% female, ages 18-65) who meet Diagnostic and Statistical Manual of Mental Disorders 4th edition (DSM-IV) criteria for both marijuana and nicotine dependence and seek treatment to stop using both marijuana and tobacco will receive individual CBT aimed at treating both disorders, as well as Nicotine Replacement Therapy (NRT) in the form of a transdermal nicotine patch. Subjects will start with a 21-mg nicotine patch for 6 weeks, followed by a taper to a 14-mg nicotine patch for 2 weeks and, finally, a 7-mg nicotine patch for 2 weeks. Others will start with a 14-mg patch for 8 weeks followed by a 7-mg patch for 2 weeks. All participants will receive 10 weeks of 1-hour weekly CBT with an experienced clinician. Follow-up visits, scheduled at 4, 6, 8, and 10 weeks, will evaluate of the durability of treatment effects on drug use and psychosocial outcomes.

Study Type

Interventional

Enrollment (Actual)

12

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Massachusetts
      • Belmont, Massachusetts, United States, 02478
        • Mclean Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age range 18-65 years
  • current DSM-IV cannabis dependence
  • current DSM-IV nicotine dependence
  • express a desire to quit cannabis and nicotine use within the next 30 days
  • daily use of ≥ 10 tobacco cigarettes
  • for women of childbearing age, a negative pregnancy test at screening with agreement to use adequate contraception to prevent pregnancy and additional pregnancy tests at weeks 4 and 8
  • Expired breath carbon monoxide (CO) determination is greater than or equal to 7 ppm over ambient values

Exclusion Criteria:

  • Current diagnosis of other drug or alcohol dependence (other than cannabis or nicotine)
  • recent (within 3 months) significant cardiac disease
  • current serious psychiatric illness or history of psychosis, schizophrenia, bipolar type I disorder or significant current suicidal or homicidal thoughts
  • current use of bupropion
  • current NRT or other smoking cessation treatment
  • current CBT or other behavioral treatments for cessation of marijuana or tobacco smoking
  • current smokeless tobacco use
  • inability to read or write in English

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Treatment
Cognitive behavioral therapy (CBT) plus transdermal patch nicotine replacement therapy (NRT) to treat co-occurring nicotine and cannabis dependence during a 10-week study.
Behavioral: Cognitive Behavioral Therapy
individual CBT once weekly, 50 minutes, for 10 weeks
Drug: Nicotine Replacement Therapy
  1. 21 mg patch for 6 weeks, 14 mg patch for 2 weeks, then 7 mg patch for 2 weeks
  2. 14 m g patch for 8 weeks, then 7 mg patch for 2 weeks
Other Names:
  • Nicotine Transdermal Patch

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cigarette Use
Time Frame: Baseline and 10 weeks
cigarettes per day
Baseline and 10 weeks
Cannabis Use
Time Frame: Baseline and 10 weeks
cannabis inhalations per day
Baseline and 10 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Client Satisfaction Questionnaire (CSQ-8) at 10 Weeks
Time Frame: 10 weeks
The Client Satisfaction Questionnaire (CSQ-8) is a self-report instrument used to assess satisfaction with health services and it was used to assess participant satisfaction with the treatment during this 10 week study. Scores range from 8 - 32 with higher values indicating higher satisfaction.
10 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Mclean Hospital

Collaborators

Harvard Medical School (HMS and HSDM)

Investigators

  • Principal Investigator: Kevin P Hill, MD, MHS, Mclean Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2009

Primary Completion (Actual)

June 1, 2011

Study Completion (Actual)

June 1, 2011

Study Registration Dates

First Submitted

February 8, 2011

First Submitted That Met QC Criteria

February 8, 2011

First Posted (Estimate)

February 9, 2011

Study Record Updates

Last Update Posted (Estimate)

August 14, 2013

Last Update Submitted That Met QC Criteria

August 13, 2013

Last Verified

August 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2008-P-000927

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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