This study is a three-arm randomized controlled trial designed to evaluate the efficacy of a smartphone-based augmented reality (AR) cognitive behavioral therapy (CBT) app, called ZeroOCD, for individuals with elevated contamination-related obsessive-compulsive disorder (OCD) symptoms. The AR-CBT app will be compared to both an active control condition (manualized CBT via videoconferencing) and a waitlist control group.
• OCD symptoms, mean score > 7 on the Yale Brown Obsessive Compulsive Scale (Y-BOCS)
Fear of contamination OCD symptoms, mean score > 6 on the Padua Inventory contamination fear subscale (PI)
Having access to a compatible smartphone
Having an internet connection
• Having been diagnosed with bipolar or psychotic disorder (self-report)
Severe depressive symptoms (Patient Health Questionnaire, PHQ-9, score > 20)
Reporting suicidality (PHQ-9, item 9 > 2 points at screening)
Fear of contamination due to disorder other than OCD (clinical judgment based on results from the Yale Brown Obsessive Compulsive Scale, Y-BOCS, Generalized Anxiety Disorder-7 items, GAD-7, Short Health Anxiety Inventory, SHAI)
VU University of Amsterdam
Lead sponsor
University of Bern
Collaborator
Stockholm University
Collaborator
Thomas More University of Applied Sciences
Collaborator