Studies show that hormones affect the brain's fear extinction network, which is relevant for therapy involving exposure and response prevention (EX/RP), a first-line treatment for obsessive compulsive disorder (OCD). This study will examine the effect of delivering EX/RP to women during different phases in their menstrual cycle to determine the effects of hormones on the fear extinction network and on their OCD symptoms.
This study involves neuroimaging and a brief EX/RP protocol. The investigators will recruit both male and female participants. All participants will complete neuroimaging, hormonal assays and symptom ratings before and after a brief course of EX/RP. Female participants will be randomized to complete brief EX/RP during distinct phases of their menstrual cycles. This design will allow the investigators to study the effects of hormonal variation during the menstrual cycle and sex on the fear extinction network and on EX/RP outcome. The long-term goal is to optimize EX/RP for individuals suffering from OCD. Men will also be recruited for this study to further explore biological sex differences. The results will elucidate treatment mechanisms and could lead to personalized treatment recommendations for women with OCD.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
120
Exposure and Response Prevention (EX/RP) is a type of Cognitive Behavioral Treatment for treating OCD. This is a brief protocol consisting of 8 sessions of exposure and Response Prevention (EX/RP). This protocol includes two psychoeducation/planning sessions, followed by six exposure sessions.
New York State Psychiatric Institute
New York, New York, United States
RECRUITINGUniversity of Pennsylvania
Philadelphia, Pennsylvania, United States
RECRUITINGfMRI
Slope of change in brain activation (fMRI)
Time frame: Baseline to approximately 4 weeks later
OCD Symptoms
Slope of change in Obsessive Compulsive Symptom Severity (Yale-Brown Obsessive Compulsive Scale)
Time frame: Baseline to approximately 4 weeks later
rs fMRI
Slope of change in resting state functional connectivity (fMRI)
Time frame: Baseline to approximately 4 weeks later
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