Using ketamine to treat obsessive-compulsive disorder
Official title: Ketamine Therapy in Obsessive-compulsive Disorder and Its Effects on Neuropsychological Function Under Stress in a Cross-over Trial
Run by Medical University of Vienna · NCT05577585 · Data updated 2026-11-12
This study is testing if low-dose ketamine can help people with obsessive-compulsive disorder feel better by comparing it to another treatment.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 60 (estimated) |
| Sponsor | Medical University of Vienna Academic / other |
| Locations | 1 site (Vienna, State of Vienna) |
| Status | Recruiting |
| Started | October 1, 2022 |
| Main results expected | June 2026 |
| Study ends | June 2026 |
| Registry record updated | June 25, 2025 |
| Trial ID | NCT05577585 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults with a primary diagnosis of obsessive-compulsive disorder who have previously undergone treatment for their condition.
✕Probably not a fit
Patients with current or past psychotic disorders, severe personality disorders, or unstable medical conditions may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This trial aims to evaluate the effectiveness of low-dose ketamine in alleviating symptoms of obsessive-compulsive disorder (OCD). It employs a randomized, double-blind, comparator-controlled cross-over design involving 30 participants diagnosed with OCD. Participants will receive ketamine and a comparator infusion in either inpatient or outpatient settings, while their neurocognitive function and stress responses will be assessed through various tasks. An option for open-label follow-up with additional infusions is also available for participants.
Why it matters
Potential benefit: If successful, this treatment could provide rapid relief from OCD symptoms and potentially sustain its effects for several days after a single infusion.
How similar studies have gone: Other studies have shown promising results with ketamine for various psychiatric disorders, indicating potential for success in this novel application for OCD.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Primary diagnosis of obsessive-compulsive disorder * A score of 16 or higher on the Yale-Brown Obsessive Compulsive Scale and ability to provide written informed consent * At least one previous treatment for OCD Exclusion Criteria Experimental Group: * Any history of current or past psychotic disorder * A manic episode within the preceding three years * Current or unstable remitted substance abuse or dependence except nicotine * Pregnancy or elevated risk of becoming pregnant during study duration (desire to have children) and refusal to utilize a proper method of contraception * Any current severe personality disorder except comorbid anankastic personality disorder * Morbus Raynaud * Inability to follow the study protocol or adhere to operational requirements * Current and unstable suicidality * Unstable hypertension * Untreated hyperthyroidism * Any unstable cardiovascular disease * Untreated disorders severely affecting the HPA-axis (M.Addison, M.Cushing) * Current pharmacological therapy severely affecting the HPA-axis like corticosteroids or ACTH Exclusion Criteria Treatment as Usual Group: * Any history of current or past psychotic disorder * A manic episode within the preceding three years * Current or unstable remitted substance abuse or dependence except nicotine * Any current severe personality disorder except comorbid anankastic personality disorder * Current and unstable suicidality
Where it's running
-
Medical University of Vienna, Department of Psychiatry and Psychotherapy
Vienna, State of Vienna, Austria Recruiting
Study contacts
- Principal investigator: Christoph Kraus, MD PhD — Medical University of Vienna, Department of Psychiatry and Psychotherapy
- Study coordinator: Christoph Kraus, MD PhD
- Email: christoph.kraus@muv.ac.at
- Phone: +4314040035680
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Exploring new brain stimulation targets for mental health conditions
This study is testing how a brain stimulation treatment can help people with depression, anxiety, OCD, and schizophrenia by looking at changes in their brain and behavior.
-
Glucose Consumption During Deep Brain Stimulation With Functional [18F]FDG-Brain-PET in Obsessive-Compulsive Disorder
This study is testing how the brain uses sugar during deep brain stimulation to see if it helps people with obsessive-compulsive disorder.
-
Low-intensity focused ultrasound targeting the subthalamic nucleus for OCD
A short test is being done to see if a wearable, non-invasive ultrasound device can safely and tolerably help adults with OCD by targeting a brain region called the subthalamic nucleus.
-
High BMI and periodontitis in Thai adults under 60
This study tests how common high BMI and periodontitis are among Thai adults aged 18–59 and what factors are linked to them.
-
Mindfulness-Based Cognitive Therapy for OCD Delivered Online
This study tests a synchronous online MBCT program for adults with OCD to see if it is acceptable and feasible and to explore links between biological markers, OCD severity, and treatment response.
-
Targeted brain stimulation for OCD: test of tTIS on nucleus accumbens
This study tests whether targeted temporal interference stimulation of the nucleus accumbens can help reduce obsessive-compulsive symptoms in adults with OCD, compared with sham stimulation.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.