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Enhancing Adolescent Substance Abuse Treatment

O

Oregon Social Learning Center

Status

Completed

Conditions

Substance Use Disorders

Treatments

Behavioral: Enhanced Contingency Management (CM+)
Behavioral: Standard Contingency Management (CM)

Study type

Interventional

Funder types

Other

Identifiers

NCT03249350
R01DA043578-01A1

Details and patient eligibility

About

The ultimate goal of this research is to facilitate rapid enhancement of youth substance abuse treatments by determining the key mechanisms of change (i.e., what to target more intensely to generate better outcomes). This work is critical because current outpatient adolescent substance abuse treatments yield only small to medium effects that diminish once treatment has ended. The proposed modern mediation study will address this serious public health problem by experimentally evaluating the most critical factors causing change in client outcomes during adolescent substance abuse treatment, directing the field to focus treatment efforts on those factors.

Full description

Adolescents with substance use disorders (SUD) are at high risk for significant deleterious outcomes. Although several evidence-based practices for adolescent SUD exist, they yield only small to medium effects that rapidly diminish (30-70% 6-month relapse rates). A promising approach for determining how to enhance treatment is experimental mediation research. In contrast to traditional correlational mediation approaches, experimental mediation permits causal inference and is comprised of key steps: (A) Identify the putative mediating variable for a treatment. (B) Enhance the treatment to target that mediator more intensely. (C) Randomize youth to conditions, with the standard and enhanced versions of the treatment targeting different "levels" of the same mediator. (D) Measure the mediator and outcomes longitudinally. (E) Perform modern mediation analyses, coupled with analyses evaluating causal inference, to determine if changes in the mediator are responsible for changes in outcomes. This experimental test of mediation, focused on causality, facilitates rapid improvement of treatments by specifying change mechanisms to target in order to improve outcomes. These steps will be followed to elucidate the mediating processes in treatment for adolescent SUD, with the ultimate goal of enhancing the strength and durability of SUD treatments. The three most common putative mediating variables in adolescent SUD treatments are parent management, behavioral regulation, and peer relations. For this study, parent management was chosen as the target because it has evidenced the most potential for yielding generalizable change in youth outcomes and also has been shown to indirectly improve youths' behavioral regulation and peer relations. Of existing treatments for adolescent SUD, family-based Contingency Management (CM) was chosen as the treatment to enhance because it is highly amenable to an augmented focus on parenting, is less complex relative to other SUD treatments, and has amassed considerable support in terms of efficacy and dissemination potential. Thus, following experimental mediation steps, youth with SUD will be randomized to receive either standard CM or enhanced CM (i.e., CM+) that targets parenting more intensely. Repeated assessments for 12 months and longitudinal analyses will allow testing of mediating processes. The investigators will examine whether parent management skills mediate the effect of treatment on youth substance use and behavior problems (Aim 1). In addition, the investigators will determine whether parent management skills mediate the effect of treatment on youth behavioral regulation and deviant peer relations (Aim 2). Finally, the investigators will test whether behavioral regulation and deviant peer relations mediate the effect of parent management on youth substance use and behavior problems (Aim 3). Findings could have broad impact across multiple adolescent SUD treatments.

Enrollment

129 patients

Sex

All

Ages

12 to 18 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age 12 to 18 years
  • Presence of current substance use disorder
  • Availability of a parent/guardian willing to participate

Exclusion criteria

  • Actively psychotic, suicidal, or homicidal
  • Pervasive developmental disorder or metal retardation

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

129 participants in 2 patient groups

Standard Contingency Management (CM)
Active Comparator group
Description:
This group will receive standard CM for adolescent substance abuse.
Treatment:
Behavioral: Standard Contingency Management (CM)
Enhanced Contingency Management (CM+)
Experimental group
Description:
This group will receive an enhanced CM protocol for adolescent substance abuse that targets parenting more intensely.
Treatment:
Behavioral: Enhanced Contingency Management (CM+)

Trial contacts and locations

1

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Central trial contact

Ashli Sheidow, PhD; Michael McCart, PhD

Data sourced from clinicaltrials.gov

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