Smartphone-based Digital Phenotyping to Detect High-risk Affect States in Body Dysmorphic Disorder (BDD)
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Enrollment
- 87
- Locations
- 1
- Primary Endpoint
- Self-reported anxiety intensity, rated from 1 (very slightly or not at all) to 5 (extremely)
Study Overview
Brief Summary
Body dysmorphic disorder (BDD) is associated with high risk for suicide attempts (22-28%) and substance use disorders (49%), underscoring the importance of accurate, real-time risk detection in BDD. This study aims to use smartphone-based digital phenotyping to develop and validate unobtrusive, time-sensitive, and ecologically valid measures of key risk factors for suicide and substance misuse in BDD: negative affect states. As next steps, this research can be extended to detect risk transdiagnostically, with the goal of enabling just-in-time interventions to target suicide and substance misuse across psychiatric illnesses.
Study Design
- Study Type
- Observational
- Observational Model
- Case Only
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Adults age >=18
- •Current primary diagnosis of BDD
- •BDD severity >= moderate
- •Living in US
- •English proficiency
- •Owns an Android or iOS (Apple) smartphone
- •Has regular Wifi-enabled internet access for data downloads
Exclusion Criteria
- Not provided
Outcomes
Primary Outcomes
Self-reported anxiety intensity, rated from 1 (very slightly or not at all) to 5 (extremely)
Time Frame: 3 months
Ecological momentary assessment (EMA) of anxiety intensity, where higher scores indicated more severe anxiety.
Self-reported shame intensity, based on Positive and negative affect scale (PANAS) shame item, rated from 1 (very slightly or not at all) to 5 (extremely)
Time Frame: 3 months
Ecological momentary assessment (EMA) of shame intensity, where higher scores indicate more severe shame.
Self-reported negative affect intensity, based on Positive and negative affect scale (PANAS) negative affect items (averaged), rated from 1 (very slightly or not at all) to 5 (extremely)
Time Frame: 3 months
Ecological momentary assessment (EMA)-rated general negative affect intensity, where higher scores indicate more severe negative affect.
Secondary Outcomes
No secondary outcomes reported
Investigators
Hilary Weingarden
Psychologist
Massachusetts General Hospital