TY - JOUR AU - Santopetro, Nicholas AU - Jones, Danielle AU - Garron, Andrew AU - Meyer, Alexandria AU - Joyner, Keanan AU - Hajcak, Greg PY - 2024 DA - 2024/8/30 TI - Examining a Fully Automated Mobile-Based Behavioral Activation Intervention in Depression: Randomized Controlled Trial JO - JMIR Ment Health SP - e54252 VL - 11 KW - digital intervention KW - digital health KW - digital application KW - digital applications KW - mobile health KW - mHealth KW - automation KW - automate KW - automated KW - behavioral activation KW - BA KW - BA intervention KW - depression KW - depressed KW - depressive KW - depressive symptoms KW - anhedonia KW - anhedonia symptoms KW - anxiety KW - anxious KW - anxiety symptoms KW - adults KW - adult KW - psychiatry KW - psych KW - psychology KW - major depressive disorder KW - MDD AB - Background: Despite significant progress in our understanding of depression, prevalence rates have substantially increased in recent years. Thus, there is an imperative need for more cost-effective and scalable mental health treatment options, including digital interventions that minimize therapist burden. Objective: This study focuses on a fully automated digital implementation of behavioral activation (BA)—a core behavioral component of cognitive behavioral therapy for depression. We examine the efficacy of a 1-month fully automated SMS text message–based BA intervention for reducing depressive symptoms and anhedonia. Methods: To this end, adults reporting at least moderate current depressive symptoms (8-item Patient Health Questionnaire score ≥10) were recruited online across the United States and randomized to one of three conditions: enjoyable activities (ie, BA), healthy activities (ie, an active control condition), and passive control (ie, no contact). Participants randomized to enjoyable and healthy activities received daily SMS text messages prompting them to complete 2 activities per day; participants also provided a daily report on the number and enjoyment of activities completed the prior day. Results: A total of 126 adults (mean age 32.46, SD 7.41 years) with current moderate depressive symptoms (mean score 16.53, SD 3.90) were recruited. Participants in the enjoyable activities condition (BA; n=39) experienced significantly greater reductions in depressive symptoms compared to participants in the passive condition (n=46). Participants in both active conditions—enjoyable activities and healthy activities (n=41)—reported reduced symptoms of anxiety compared to those in the control condition. Conclusions: These findings provide preliminary evidence regarding the efficacy of a fully automated digital BA intervention for depression and anxiety symptoms. Moreover, reminders to complete healthy activities may be a promising intervention for reducing anxiety symptoms. Trial Registration: ClincalTrials.gov NCT06492824; https://clinicaltrials.gov/study/NCT06492824 SN - 2368-7959 UR - https://mental.jmir.org/2024/1/e54252 UR - https://doi.org/10.2196/54252 DO - 10.2196/54252 ID - info:doi/10.2196/54252 ER -