Smartphone-delivered CBT achieved 71% remission in GAD patients at 10 weeks, more than doubling remission rates compared to psychoeducation. A 351-patient RCT with blinded evaluators confirms benefits sustained through 24 weeks, including improvements in depression, sleep, and clinician-rated anxiety.
Clinical Considerations
- DCBT remission rate (71%) was twice that of psychoeducation (34.6%) at 10 weeks, with gains sustained and widening at 24 weeks (77.7% vs. 52.0%)
- Dose-response relationship confirmed: patients completing more lessons showed greater symptom reduction, supporting structured engagement protocols
- Trial used blinded independent evaluators and a credible active control, strengthening confidence in findings beyond typical digital health evidence
- Benefits extended to depressive symptoms and sleep quality, making DCBT relevant across comorbid presentations common in psychiatric practice
Practice Applications
- Prescribe smartphone-based DCBT as a first-line adjunct for GAD patients facing waitlists or access barriers
- Integrate DCBT into stepped-care models before or alongside clinician-delivered therapy
- Monitor lesson completion as a proxy for engagement and expected treatment response
- Counsel patients that self-directed digital CBT has RCT-level evidence, not just app-store claims
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