Preliminary Efficacy of a Digital Intervention for Adolescent Depression: Randomized Controlled Trial

Area of Science:

• Mental Health
• Digital Therapeutics
• Adolescent Psychology

Background:

• Adolescent depression is a major public health issue with limited access to effective care.
• Digital therapeutics (DTx) offer potential for increased access to evidence-based interventions.
• Efficacy of DTx for adolescent depression requires further investigation.

Purpose of the Study:

• To evaluate the efficacy of a mobile app-based digital therapeutic (DTx) as an adjunct treatment for adolescent depression.
• To compare a cognitive behavioral therapy (CBT)-based app (Spark) against a psychoeducational control app.
• To assess depression symptom changes, remission rates, and treatment response in adolescents.

Main Methods:

• An internet-based, open-label randomized controlled trial with a partial crossover design.
• 168 adolescents (13-21 years) with depression symptoms were randomized to a 5-week intervention.
• Primary outcome: Change in depression symptoms (PHQ-8 score) from baseline to post-intervention.

Main Results:

• The CBT-based app (Spark) arm met a minimal clinically important difference for depression symptom reduction.
• Significantly higher remission rates were observed in the Spark arm (17%) compared to the control arm (3%).
• Post hoc analyses indicated potential effectiveness for mild to severe depression symptoms.

Conclusions:

• A self-guided, CBT-based DTx intervention shows initial evidence of effectiveness for adolescent depression.
• DTx interventions may enhance access to mental health services for adolescents.
• Digital therapeutics can serve as a valuable adjunct to standard adolescent mental health care.