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Community Based Cannabis Cessation Program

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT04989205
Recruitment Status : Completed
First Posted : August 4, 2021
Last Update Posted : August 4, 2021
Sponsor:
Collaborators:
City of Oslo
Municipality of Kristiansand
Norway Centre for Addiction Research
Information provided by (Responsible Party):
Sorlandet Hospital HF

Brief Summary:
The study examined a community based cannabis cessation program in Norway (CCP). The CCP uses a combination of cognitive therapy and psychoeducation and covers the normal withdrawal period for cannabis smoking cessation (up to 8 weeks), comprising ~15 individual sessions. From 2005 onwards, the CCP was implemented as a low-threshold community-based program in several Norwegian municipalities, e.g., Kristiansand, Fredrikstad and Oslo. The study had an observational one-group pre- / post test design. Outcomes was changes in cannabis use, mental distress, well-being, social network and sense of coherence (SoC) measured post-intervention (T2) and at a 3 months follow-up (T3).

Condition or disease Intervention/treatment
Cannabis Use Behavioral: Cannabis cessation Program

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Study Type : Observational
Actual Enrollment : 102 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Examining a Community Based Intervention for Cannabis Smoking Cessation in Norway - an Observational Study
Actual Study Start Date : June 2, 2013
Actual Primary Completion Date : January 31, 2017
Actual Study Completion Date : January 31, 2017

Resource links provided by the National Library of Medicine


Group/Cohort Intervention/treatment
HAP - group
The target group was individuals who engaged in regular or daily cannabis use, and who were motivated to quit cannabis. The formal inclusion criteria was a Severity of Dependence Scale (SDS) score ≥4 and being ≥16 years old. Exclusion criteria was polydrug use where cannabis was not the predominating substance of use and psychiatric comorbidity that was perceived as too severe to handle at the community-based centers .
Behavioral: Cannabis cessation Program
Lundqvist and Ericsson developed the 'Cannabis Cessation Program' (CCP, Nordic abbreviation: HAP) in Sweden in the 1990s. The method uses a combination of cognitive therapy and psychoeducation and covers the normal withdrawal period for cannabis smoking cessation (up to 8 weeks), comprising ~15 individual sessions. It describes a medical, a psychological, and a social phase, in which the participant is helped to recognize and address typical problems related to each phase, e.g., physical and psychological withdrawal problems. The overarching aim of the program is to help cannabis users to reorganize thinking patterns that developed while they were using cannabis and increase their social and psychological coping skills in relation to quitting cannabis use. The CCP manual has been translated into eight languages, e.g., Norwegian.




Primary Outcome Measures :
  1. Cannabis use [ Time Frame: Changes from baseline to post-treatment and follow-up, on average 5 months ]
    Days with cannabis use last 30 days


Secondary Outcome Measures :
  1. Mental distress [ Time Frame: Changes from baseline to post-treatment and follow-up, on average 5 months ]
    The Hopkins Symptom Checklist (HSCL) 25-item version was used to measure mental distress. Each of the 25 items was scored on a 4-point scale (1-4). An average score was computed, indicating a global severity index of mental distress (GSI), where higher scores indicated greater distress. Clinical cut-off = 1.75

  2. Well-being [ Time Frame: Changes from baseline to post-treatment and follow-up, on average 5 months ]
    The Outcome Rating Scale (ORS) was used to assess well-being. The scale has four visual analogue items on personal, interpersonal, social, and general well-being, and each item are scored from 0 = bad up to 10 = good. The items are then summed (range 0-40) and a score <25 indicated scores expected in a clinical population.

  3. Social network [ Time Frame: Changes from baseline to post-treatment and follow-up, on average 5 months ]
    Number of current friends with and without problematic substance use

  4. Sense of Coherence (SoC) [ Time Frame: Changes from baseline to post-treatment and follow-up, on average 5 months ]
    The Sense of Coherence questionnaire, 29 item version, measures the degree to which the subject feels that he or she has a sense of control over their own lives (manageability - 10 items), that life has meaning (8 items) and that their social life is understandable (comprehensibility - 11 items). Responses to items are scored on a seven-point semantic differential scale. Scores are summed (ranges from 29 - 203) and higher scores indicated a stronger SoC



Information from the National Library of Medicine

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Ages Eligible for Study:   16 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Sampling Method:   Non-Probability Sample
Study Population
The target group was individuals who engaged in regular or daily cannabis use, and who were motivated to quit cannabis.
Criteria

Inclusion Criteria:

  • Severity of Dependence Scale (SDS) score ≥4

Exclusion Criteria:

  • polydrug use where cannabis was not the predominating substance of use
  • psychiatric comorbidity that was perceived as too severe to handle at the community-based centers

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04989205


Locations
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Norway
Social Services, Fredrikstad Municipality
Fredrikstad, Norway
Kristiansand Municipality, Cannabis Cessation Program
Kristiansand, Norway
City Centre Outreach Service, Agency for Social and Welfare Services
Oslo, Norway
Sponsors and Collaborators
Sorlandet Hospital HF
City of Oslo
Municipality of Kristiansand
Norway Centre for Addiction Research
Investigators
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Principal Investigator: John-Kåre Vederhus, PhD Addiction Unit, Sørlandet Hospital, Kristiansand
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Sorlandet Hospital HF
ClinicalTrials.gov Identifier: NCT04989205    
Other Study ID Numbers: 005004
First Posted: August 4, 2021    Key Record Dates
Last Update Posted: August 4, 2021
Last Verified: July 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: Study protocol will be shared upon request. Anonymous data will be shared upon reasonable request
Supporting Materials: Study Protocol
Time Frame: Upon request
Access Criteria: Upon request

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Marijuana Abuse
Substance-Related Disorders
Chemically-Induced Disorders
Mental Disorders