Ketamine-assisted psychotherapy for treatment-resistant depression in adults
Official title: Effectiveness and Underlying Mechanisms of an Innovative Treatment Program for Persistent Mood and Anxiety Conditions
Run by Senz · NCT07706478 · Data updated 2026-11-12
This open-label program tests intravenous ketamine combined with psychotherapy to see if it helps adults with treatment-resistant depression.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 70 Years |
| Sex | All |
| Enrollment | 120 (estimated) |
| Sponsor | Senz Academic / other |
| Locations | 1 site (Doorn, Utrecht) |
| Status | Recruiting |
| Started | June 1, 2025 |
| Main results expected | January 2033 |
| Study ends | January 2033 |
| Registry record updated | July 15, 2026 |
| Trial ID | NCT07706478 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18 years and older with treatment-resistant depression who meet the inclusion criteria and do not have exclusion conditions.
✕Probably not a fit
Patients with active suicidality, certain neuropsychiatric conditions, or substance use disorders may not experience benefit or may be excluded from participation.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
The trial uses a structured Ketamine-Assisted Psychotherapy (KAP) approach in a medically supervised setting to treat adults with persistent or treatment-resistant depression. Participants undergo comprehensive assessments, medical screening, preparation sessions, ketamine infusions, and post-session integration therapy. Safety monitoring, vital signs, and psychiatric oversight are integral to the protocol. The study aims to observe clinical effectiveness and the subjective therapeutic impact of KAP in routine mental healthcare.
Why it matters
Potential benefit: If successful, participants may experience meaningful reductions in depressive symptoms and enhanced emotional processing.
How similar studies have gone: Previous studies of ketamine-assisted psychotherapy have shown promise in reducing depressive symptoms, though evidence varies and larger trials are needed.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adults (18 years and older) * TRD * A MADRS score above the established clinical cut-off, indicating clinically significant depressive symptoms * Insufficient response to at least two adequate antidepressant treatment trials and one evidence-based psychotherapy, or failure to achieve adequate improvement following at least three consecutive treatment steps in accordance with the Dutch Multidisciplinary Guideline for Depression Exclusion Criteria: * Current substance use disorder or recent illicit drug use * Substance use disorder not in remission for at least 3 months * Inability to abstain from alcohol for 24 hours before and after treatment * Acute suicidality * Current or past psychotic disorder * Significant neurological disorders (e.g., epilepsy, elevated intracranial pressure) * Uncontrolled hypertension or medical conditions associated with increased cardiovascular or cerebrovascular risk (e.g., aneurysms, recent myocardial infarction or intracerebral hemorrhage) * Significant bladder disease (e.g., cystitis) * Severe hepatic impairment * Pregnancy, breastfeeding, or ongoing IVF treatment * Extreme underweight or obesity where treatment is deemed medically unsafe Inability to arrange an accompanying adult for transport and support after treatment
Where it's running
-
Senz
Doorn, Utrecht, Netherlands Recruiting
Study contacts
- Principal investigator: Rutger Engels — Senz
- Study coordinator: Rutger Engels, dr
- Email: r.engels@senzggz.nl
- Phone: +31 343 235300
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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.