Clinical trial Recruiting at 1 site Observational Ages 18 to 70

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.

More Treatment Resistant Depression trials

Quick facts

Study typeObservational
Ages18 Years to 70 Years
SexAll
Enrollment120 (estimated)
SponsorSenz
Academic / other
Locations1 site (Doorn, Utrecht)
StatusRecruiting
StartedJune 1, 2025
Main results expectedJanuary 2033
Study endsJanuary 2033
Registry record updatedJuly 15, 2026
Trial IDNCT07706478 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.