Mechanisms of Exposure Therapy for OCD
Recruiting · NCT06173752 · Interventional (participants receive a specific treatment) · Lead sponsor: Mclean Hospital
View the official record on ClinicalTrials.gov →Interventions studied
What this trial is about
Exposure therapy is the most effective treatment available for obsessive compulsive disorder, yet up to 50% of patients do not recover because the mechanisms underlying successful response are poorly understood, leading to significant variability in how clinicians conduct exposure therapy. The main purpose of this study is to determine which target mechanisms are most critical to engage in real-world exposure sessions to produce good treatment outcomes. Adult participants (N = 400) with Obsessive Compulsive Disorder (OCD) receiving exposure therapy from two sites (McLean Hospital, San Diego State University) across the continuum of care (outpatient, partial hospital, residential) will complete baseline clinical and demographic measures as well as weekly symptom reports. The project will measure exposure mechanisms across three levels of analysis (self-report, observer-rated behavior, physiology) during each exposure session. Mechanisms assessed will include a broad range of variables based on both habituation and inhibitory learning models of exposure. Self-report and observer-rated mechanisms will be measured with the Exposure Feedback Form, created and piloted by the study team. Physiological mechanisms will include skin conductance response, heart rate, and heart rate variability measured with a wristwatch. The current study will determine (1) which exposure mechanisms lead to favorable clinical outcomes, and (2) what makes a good exposure for whom. Results of this study have the potential to improve personalized care for the many patients who do not remit following exposure therapy for OCD.
Who can take part
Inclusion criteria
- Between the ages of 18-65 years old
- Seeking exposure treatment at McLean Hospital OCD Institute or San Diego State University
- Have a diagnosis of OCD
- Able to complete study measures and treatment procedures in English
Exclusion criteria
- Acute symptoms of psychosis
- Active suicidality (plan, means, intent and/or suicide attempt in past 3 months)
- Presence of co-occurring symptoms that warrant higher level of care (e.g., inpatient treatment)
- Presence of any medical, psychiatric, or developmental condition that would prevent patients from completing assessments or exposure exercises (e.g., non-verbal autism spectrum disorder)
Where it is running
2 locations listed across 2 US states.
- Center for Understanding and Treating Anxiety - San Diego, California, United States
- McLean OCDI - Belmont, Massachusetts, United States