Brain Network Changes and Fluoxetine Treatment for OCD

This study is looking at how the brain changes in people with Obsessive-Compulsive Disorder (OCD) when they are treated with fluoxetine, a common medication. Researchers want to understand what brain changes happen during treatment and if these changes can predict who will respond well to fluoxetine. You might be eligible if you are an adult between 18 and 65 years old with OCD. The study will measure changes in your OCD symptoms over 18 weeks to see if the treatment is successful. The current status of this study is unclear, and it aims to enroll 100 participants.

Study design
This is a randomized, double-blind study. Participants with OCD will either receive fluoxetine immediately or after a 6-week placebo period.
What's involved
Participants will have fMRI scans at the beginning and during treatment. Some participants will receive fluoxetine, while others will have a 6-week placebo lead-in.
Compensation
Not stated in the trial record.
Follow-up
The primary endpoint for measuring obsessive-compulsive severity change is at 18 weeks.

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NCT04131829

Brain Network Changes Accompanying and Predicting Responses to Pharmacotherapy in OCD

Recruiting
PHASE1Ages 18–65InterventionalBasic science
Yale University
~100 participants
Updated 2025-08-14 on ClinicalTrials.gov
What's tested:Fluoxetine - immediate treatmentFluoxetine - delayed treatment

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Obsessive-compulsive severity change
Measured over 18 weeks
Obsessive-Compulsive Disorder
1 sites across 1 states
Connecticut1
  • Christopher Pittenger, MD, PhD · PRINCIPAL_INVESTIGATOR · Professor of Psychiatry; Director, Yale OCD Research Clinic

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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

OCD Participants:
Healthy Control Participants:

Exclusion

OCD Participants:
  • Obsessive-compulsive severity change18 weeks

    Yale-Brown Obsessive-Compulsive Scale (Y-BOCS);72,73 -This is a checklist and Clinician administered - 10 item severity scale, from none to extreme. Total severity score range is 0 to 40. This will be presented as % improvement in Y-BOCS as a continuous measure of treatment response, rather than an artificially dichotomized measure of 'response', in all analyses. This the primary outcome measure of change across the study treatment and scans.