Transdiagnostic App-Based Cognitive Bias Modification Intervention for Paranoia (Successful Treatment of Paranoia;
Chloe Hampshire1, Charlotte Dack1, Laura Eid2
1Department of Psychology, University of Bath, Bath, United Kingdom.
JMIR Research Protocols
|December 22, 2025
Summary
This study evaluates the implementation of the Successful Treatment of Paranoia (STOP) app, a digital intervention for paranoia. Findings will guide future adoption and inform other digital mental health tools.
Area of Science:
- Mental Health
- Digital Health Interventions
- Process Evaluation
Background:
- Paranoia significantly impacts daily functioning.
- Digital interventions offer accessible treatment options for paranoia.
- The Successful Treatment of Paranoia (STOP) app is a smartphone-based intervention evaluated in a UK trial.
Purpose of the Study:
- To describe the protocol for a process evaluation of the STOP intervention.
- To explore how, by whom, and under what circumstances STOP was used.
- To identify factors influencing future implementation in routine practice.
Main Methods:
- A mixed-methods process evaluation embedded within the STOP randomized controlled trial.
- Data collection from STOP trial participants, individuals from the Adult Psychiatric Morbidity Survey, and healthcare professionals.
- Analysis of quantitative (demographics, app usage) and qualitative (acceptability) data.
Main Results:
- The STOP trial recruited 274 participants and concluded in December 2024.
- Process evaluation data analysis is ongoing for studies involving survey participants and healthcare professionals.
- Results are anticipated for publication by February 2027.
Conclusions:
- Findings will provide an evidence-based understanding of STOP implementation.
- This research will identify strategies for post-trial delivery of STOP.
- The study aims to inform future iterations and broader implementation of digital mental health interventions.
Keywords:
digital mental healthimplementationimplementation scienceparanoiaprocess evaluationrandomized controlled trialsmartphone interventionMore Related Videos
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