Pilot study on the effects of ketamine on mood and eating disorder cognitions in enduring anorexia nervosa
This randomised controlled Phase II trial (n=24) evaluated the safety and efficacy of ketamine for anorexia nervosa depressive disorder anxiety disorder obessional disorder using 26mg/70kg ketamine.
Detailed Description
We will investigate if patients with long-standing anorexia nervosa show improvements in mood, obsessionality ratings, or eating disorder cognitions after oral dosing with ketamine or midazolam, a psychoactive control. In the first 3 weeks, patient will receive one of 2 doses of ketamine, or a single dose of midazolam, under double-blind, crossover conditions. Patient who report improvements in depression or anxiety ratings will be eligible to enter a maintenance treatment phase, where they can receive oral ketamine 1-2 times weekly for 3 months.
Study Arms & Interventions
Experimental Arm
experimentalInterventions
- Ketamine
- Midalozam
Participants
Inclusion Criteria
- Primary diagnosis DSM 5 Anorexia Nervosa (AN) based on a structured psychiatric interview
- Illness duration of AN of greater than 5 years
- Disabling severity with substantial functional impairment
- AN treatment refractoriness, defined as lack of response to two or more typical modes of treatment, such as inpatient weight restoration, psychotherapy and /or psychopharmacology
- Severely underweight: Body Mass Index (BMI) greater than 15 and less than 18
- 18-45 years old
- English speaking and able to answer the study questions fluently
- Has the mental capacity to provide written informed consent to research participation
Exclusion Criteria
- Unstable physical condition (severe electrolyte disturbances, cardiac failure and other physical conditions due to low weight in which surgery/anaesthesia is contraindicated)
- Treatable underlying cause of AN/underweight
- Parkinson's disease, dementia, epilepsy
- History of schizophrenia/psychosis, bipolar disorder
- Actively suicidal - Columbia Suicide Severity Rating Scale (CSSRS) of 4 or 5
- Alcohol or substance abuse (including benzodiazepines) during the last 6 months
- Severe DSM 5 Antisocial Personality Disorder or Borderline Personality Disorder
- Females who are pregnant or lactating
Study Details
- StatusNot yet recruiting
- PhasePhase II
- Typeinterventional
- DesignRandomizeddouble Blind
- Target Enrollment24 participants
- TimelineStart: 2019-09-02
- Compounds
- Topic