Ketamine-Assisted Psychotherapy (KAP) Compared to Ketamine Alone for the Treatment of Depression (KAP)
Single-site, randomised, controlled RCT (n=70) comparing ketamine-assisted psychotherapy (KAP) to standard medical ketamine (KET) for MDD over four weeks; ketamine doses personalised 0.3–1.0 mg/kg.
Detailed Description
Randomised, parallel-group, single-blind (outcomes assessor) trial enrolling adults with major depressive disorder to receive either weekly KAP sessions (IM ketamine, 0.3–1.0 mg/kg, 4–5 sessions) or a standard medical IV ketamine regimen (twice-weekly for three weeks then a single infusion in week four, up to seven infusions).
Assessments include depression severity, wellness, neurocognitive functioning and safety at baseline, end of acute treatment, and over an eight-week follow-up. Preparatory and integration psychotherapy sessions are provided in the KAP arm; matched psychoeducation provided in the KET arm.
Study Protocol
Preparation
Dosing
Integration
Therapeutic Protocol
Study Arms & Interventions
KAP
experimentalKetamine-assisted psychotherapy: weekly KAP sessions for 4 weeks (possible second session in week 1 for dose finding); personalised ketamine dosing IM.
Interventions
- Ketamine0.3 - 1 mg/kgvia IM• weekly• 5 doses total
Personalised dosing 0.3–1.0 mg/kg; session duration 120–180 min; preparatory and integration sessions included.
- Compoundvia Other
Behavioral psychotherapy and integration sessions paired with drug sessions (60 min integration sessions weekly).
KET
active comparatorStandard medical ketamine without formal psychotherapy: twice-weekly IV infusions for 3 weeks then a single infusion in week 4; dose titrated clinically 0.3–1.0 mg/kg.
Interventions
- Ketamine0.3 - 1 mg/kgvia IV• twice weekly for 3 weeks then single infusion week 4• 7 doses total
No formal psychotherapy; matched basic psychoeducation provided.
Participants
Inclusion Criteria
- Inclusion Criteria
- Written informed consent (and assent when applicable) obtained from subject and ability for subject to comply with the requirements of the study.
- Age 18-90 years
- Participant in good physical health
- Participants may be on medications for depression as long as they remain on a stable dose.
- A score of at least 20 on the 10 item Montgomery-Asberg Depression Scale at screening, corresponding to at least moderate current depression severity.
- Meets criteria for major depressive disorder (MDD) in current major depressive episode (MDE) according to DSM-5
- Women of child-bearing potential must have a negative pregnancy test at screening and prior to ketamine infusion
Exclusion Criteria
- Exclusion Criteria
- Pregnant, breastfeeding, or unwilling to practice birth control during participation in the study.
- Presence of a condition or abnormality that in the opinion of the Investigator would compromise the safety of the patient or the quality of the data.
- Any unstable medical illnesses including hepatic, renal, gastroenterological, respiratory, cardiovascular (including ischemic heart disease and uncontrolled hypertension); endocrinologic, neurologic, immunologic, or hematologic disease
- Clinically significant abnormalities of laboratories, physical examination, or ECG
- Substance drug or alcohol use disorder in the prior 12 months
- History of hypersensitivity to ketamine or esketamine
- Lifetime history of schizophrenia, schizoaffective disorder, bipolar I or II disorder
- Presence of psychotic symptoms in the current MDE, or lifetime psychotic disorder
- Recreational ketamine or phencyclidine use in the last year
- Previous non-response to clinical or research ketamine or esketamine administration
- Concurrent treatment with ECT, TMS, or VNS in the current MDE
- BMI > 35
- Significant suicidal ideation as determined by a C-SSRS score >2 in past 30 days
- History of suicide attempt or self harm in the prior 2 years
- SBP > 165 or DBP > 95 on infusion day
- MoCA score < 23
Study Details
- StatusRecruiting
- PhasePhase II
- Typeinterventional
- DesignRandomizedsingle Blind
- Target Enrollment70 participants
- TimelineStart: 2025-01-01End: 2027-08-01
- Compounds
- Topic