Smartphone-based Cognitive-Behavioral Therapy and Smartphone-based Supportive Psychotherapy for Body Dysmorphic Disorder

The primary aims of this study are to test the feasibility, acceptability, and efficacy of a
Smartphone-based CBT treatment versus Smartphone-based SPT treatment for adults with BDD
recruited nationally. In a prior study (Clinical Trials Identifier # NCT03221738), the
investigators developed and pilot-tested the feasibility, acceptability, and preliminary
efficacy of a CBT for BDD app in an open pilot trial. The investigators are now further
testing these outcomes in a randomized controlled trial. Eligible subjects (N= 76) will be
randomly assigned to 12-weeks of Smartphone-delivered CBT for BDD or Smartphone-delivered SPT
for BDD (50/50 chance).

Inclusion Criteria:

- at least 18 years of age

- appropriate for outpatient level of care

- current diagnosis of primary DSM-5 BDD

- Score on BDD-YBOCS of ≥ 20

- currently living in the United States

Exclusion Criteria:

- Psychotropic medication changes within 2 months prior to enrollment (Participants
taking psychotropic medication must have been on a stable dose for at least 2 months
prior to enrollment and not change medication during study period)

- Past participation in 4+ sessions of CBT for BDD

- Current substance dependence

- Lifetime bipolar disorder or psychosis

- Acute, active suicidal ideation as indicated by clinical judgment and/or score on the
QIDS-SR (#12) >1

- Current severe comorbid major depression, as indicated by clinical judgment and/or a
QIDS-SR total score ≥ 21

- Personality disorder that could compromise treatment participation (e.g., borderline
personality disorder with self-harm)

- Concurrent psychological treatment

- Does not own a supported Smartphone with a data plan (currently iPhone 5S or more
recent, running iOS 9 or newer)

- Lack of technology literacy that would interfere with ability to engage with
smartphone treatment