Developing and Evaluating a Positive Valence Treatment for Alcohol Use Disorder With Anxiety or Depression
Laureate Institute for Brain Research, Inc.
Summary
The proposed study consists of two phases. During Phase 1, the investigators will recruit a small sample of participants to complete a psychosocial intervention termed Amplification of Positivity (AMP) for individuals experiencing comorbid depression or anxiety disorders and alcohol use disorder (AMP-A). These participants will be asked to provide both qualitative and quantitative input about the AMP-A intervention. Based on their input and clinician input, the AMP-A manual will be modified for use in Phase 2. The goal is to recruit up to 20 participants in order to ensure there will be at least 8 participants who complete all sessions of AMP-A. Phase 2 is a randomized clinical trial (RCT) protocol in which individuals experiencing comorbid depression or anxiety disorders and alcohol use disorder will be randomized to complete AMP-A or an evidence-based cognitive-behavioral therapy (CBT) intervention. Up to 100 participants will be recruited in order to reach a target of N=60. Assessed outcomes will include participant acceptability and completion rates, participant compliance with the intervention, positive and negative affect, substance use- and depression and anxiety-related symptom severity, functional disability, and neural reactivity to reward and alcohol cues during functional magnetic resonance imaging (fMRI).
Description
Substance use disorder, including alcohol use disorder, is characterized by enhanced neural responsivity to drug (alcohol) cues, but reduced neural responsivity to non-drug reward cues. These effects may be exacerbated by comorbid major depressive disorder (MDD) or symptoms of anhedonia, comorbidities which are particularly high amongst alcohol use disorder. Response rates for current interventions with alcohol use disorder are rather poor, with only 58% experiencing benefits greater than control conditions. There is a need to identify interventions that may target reward responsivity in a way…