Efficacy of Contingency Management in the Treatment of Adolescents With Cannabis Use Disorders

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-04-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Cannabis use among Spanish adolescents has been increasing in the last decade. It has been related to poor school achievement, delinquency, substance use and psychiatric disorders. Furthermore, psychoactive substance use in adolescents presenting psychiatric disorders can result in the development of substance use disorders or the worsening of psychopathology. Thus, there's an urge to develop efficient interventions in the treatment of these disorders. Therapeutic approaches based on cognitive-behavioural therapy and motivational interviewing have demonstrated a limited efficacy in this population. Programs based on contingency management have been reported to be useful both in adult and adolescents, too. But it still remains unclear whether a combination of these therapeutic approaches is feasible and brings a better cost-benefit relation.

The investigators' project aims to evaluate the added benefits of supplementing a standard intervention on cannabis use, based on combined approach that includes motivational and cognitive-behavioural elements, with a contingency management program. Therefore, pre and post-treatment evaluation will be carried forward in a sample of 30 adolescents (aged 12-18) that initiate treatment for cannabis use related disorder at the Child and Adolescent Psychiatry Department of the Hospital Clinic in Barcelona. Participants will be randomly assigned to a standard treatment group or an experimental group in which standard treatment will be supplemented with a contingency management protocol. As a secondary objective, a prospective assessment of neuropsychological performance related to cannabis use or abstinence will be carried forward.

Related Clinical Trials

Explore similar clinical trials based on study characteristics and research focus.

Pilot Trial of Contingency Management for Long-Term Cannabis Abstinence

NCT03786224

Cannabis Use Adolescent Behavior

COMPLETED NA

Brief Intervention in Substance Use in Adolescent Psychiatric Patients

NCT00694226

Substance-Related Disorders

COMPLETED NA

Rewards for Cannabis Abstinence-study

NCT05836207

Cannabis Use Disorder

RECRUITING NA

Cannabis Use and Relapse After One Week of Contingency Management Therapy

NCT04202146

Cannabis Dependence

COMPLETED NA

Marijuana Treatment Project - 3

NCT00107588

Marijuana Dependence

COMPLETED NA

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Marijuana Abuse

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Standard treatment

Participants will be randomly assigned to a standard treatment group. Patients allocated to this group will receive active treatment in form of a 12-session intervention program. This program includes weekly intervention sessions developed according to the MET/CBT12 treatment protocol (Sampl, Kadden, 2001)

Group Type ACTIVE_COMPARATOR

Standard treatment

Intervention Type BEHAVIORAL

Participants will be randomly assigned to a standard treatment group. Patients allocated to this group will receive active treatment in form of 12-session intervention program. This program includes weekly intervention sessions developed according to the MET/CBT12 treatment protocol (Sampl, Kadden, 2001). Intervention includes Motivational interviewing (2 sessions) and Cognitive behavioral therapy

Experimental

Participants randomly assigned to this group will received standard treatment (including 12 session therapy program) supplemented with an intervention with a contingency management program, designed to improve adherence and efficacy of the treatment program.

Group Type EXPERIMENTAL

Standard Treatment Plus Contingency Management Program

Intervention Type BEHAVIORAL

Participants assigned to this group will receive active treatment in form of 12-session intervention program. This program includes weekly intervention sessions developed according to the MET/CBT12 treatment protocol (Sampl, Kadden, 2001). Intervention includes Motivational interviewing (2 sessions) and Cognitive behavioral therapy (10 sessions). This treatment protocol will be supplemented with a contingency management intervention. Intervention will consist in a voucher program: negative urine-screens will be rewarded with vouchers. Voucher will have an increasing value. At the end of the program, vouchers can be changed by gifts. Potential gifts will be selected by the therapists and will be related to pro-social activities, aiming to change preexisting risk behaviours.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Standard treatment

Participants will be randomly assigned to a standard treatment group. Patients allocated to this group will receive active treatment in form of 12-session intervention program. This program includes weekly intervention sessions developed according to the MET/CBT12 treatment protocol (Sampl, Kadden, 2001). Intervention includes Motivational interviewing (2 sessions) and Cognitive behavioral therapy

Intervention Type BEHAVIORAL

Standard Treatment Plus Contingency Management Program

Participants assigned to this group will receive active treatment in form of 12-session intervention program. This program includes weekly intervention sessions developed according to the MET/CBT12 treatment protocol (Sampl, Kadden, 2001). Intervention includes Motivational interviewing (2 sessions) and Cognitive behavioral therapy (10 sessions). This treatment protocol will be supplemented with a contingency management intervention. Intervention will consist in a voucher program: negative urine-screens will be rewarded with vouchers. Voucher will have an increasing value. At the end of the program, vouchers can be changed by gifts. Potential gifts will be selected by the therapists and will be related to pro-social activities, aiming to change preexisting risk behaviours.

Intervention Type BEHAVIORAL

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Presence of DSM-IV-TR criteria of cannabis abuse and/or dependence
* Signed informed consent

Exclusion Criteria

* Mental retardation
* Presence of a substance use disorder other than nicotine or cannabis
* Severe or unstable medical
* Presence at the moment of inclusion of severe acute psychopathology (acute psychotic symptoms, severe depressive symptoms, suicidal ideation)

Minimum Eligible Age

12 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No