Web-based treatment for substance use disorders: differential effects by primary substance

Area of Science:

• Behavioral Science
• Substance Abuse Treatment
• Digital Health Interventions

Background:

• Investigated the effectiveness of a web-based behavioral treatment, the Therapeutic Education System (TES).
• Analyzed data from a large, multi-site trial (NCT01104805) focusing on substance abuse treatment.
• Examined differential treatment effects based on participants' primary drug of abuse.

Purpose of the Study:

• To determine if the effects of the Therapeutic Education System (TES) vary by the primary substance of abuse.
• To assess the efficacy of a web-based intervention in a diverse outpatient substance abuse population.
• To identify specific patient subgroups that benefit most from digital behavioral interventions.

Main Methods:

• Secondary analysis of 497 participants in outpatient psychosocial counseling for substance abuse.
• Participants' primary substances included cannabis, stimulants, opioids, and alcohol.
• Random assignment to treatment-as-usual (TAU) with or without TES, with multivariate analyses of abstinence outcomes.

Main Results:

• Primary stimulant users receiving TES showed significantly higher abstinence rates compared to TAU (AOR=3.59).
• TES demonstrated promising, though not statistically significant, effects for cannabis and alcohol users.
• No significant improvement in abstinence was observed for primary opioid users with TES intervention (AOR=0.35).

Conclusions:

• The Therapeutic Education System (TES) is a viable web-delivered intervention for most substance users in outpatient treatment.
• TES demonstrated effectiveness for stimulant users and potential for alcohol and cannabis users.
• Web-delivered treatments show promise for expanding access to effective behavioral interventions for substance use disorders.