RecruitingPhase 2

Study of Dextromethorphan in OCD and Related Disorders

United States60 participantsStarted 2022-01-20

Plain-language summary

The purpose of the study is to assess the tolerability and efficacy of dextromethorphan in combination with fluoxetine for symptom relief in OCD and related disorders.

Who can participate

Age range

18 Years – 65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Diagnosis of obsessive-compulsive disorder (OCD), body dysmorphic disorder (BDD), illness anxiety disorder (IAD) or somatic symptom disorder (SSD) * Living within California * Capacity to provide informed consent Exclusion Criteria: * Current bipolar disorder or psychotic disorder * Active moderate or severe substance use disorder, lifetime severe substance use disorder * Pregnant or nursing women * Use of prescribed psychotropic medications other than fluoxetine for 2 weeks prior to study start * Having commenced OCD-targeted exposure and response-prevention (ExRP) psychotherapy within 2 months of study start

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Improvement in OCD or related disorder symptoms as measured by the Y-BOCS

Timeframe: Change from baseline will be assessed at 4 weeks and at 8 weeks.

Trial details

NCT IDNCT04899687

SponsorStanford University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-04-01

Contact for this trial

Alessa Gaeta, BA

650 497 2578 ocdresearch@stanford.edu

View on ClinicalTrials.gov More Obsessive-Compulsive Disorder trials

Who can participate

Age range

18 Years – 65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.