This Phase II, randomised, double-blind trial (n=88) will evaluate the efficacy of Mindfulness-Oriented Recovery Enhancement combined with Ketamine-Assisted Psychotherapy (KetaMORE) for individuals with opioid use disorder (OUD) receiving medication treatment. The primary aim is to determine whether participants receiving the KetaMORE intervention will show greater reductions in opioid use and craving compared to those receiving ketamine-assisted psychotherapy paired with a non-mindfulness support group. Participants will be randomly assigned to one of two conditions: the experimental group will receive ketamine-assisted psychotherapy alongside Mindfulness-Oriented Recovery Enhancement, while the control group will receive ketamine-assisted psychotherapy with a support group intervention that does not include mindfulness training. Both groups will undergo identical ketamine dosing and psychotherapy sessions, differing only in the adjunctive behavioural intervention. Key outcome measures will include the number of days of opioid use, time to first opioid use lapse, craving levels, and mood, assessed through ecological momentary assessments and standardised measures at various points throughout the study. The trial is set to begin in February 2026 and aims for completion by April 2028.
The goal of this clinical trial is to examine the usefulness of Mindfulness-Oriented Recovery Enhancement combined with Ketamine-Assisted Psychotherapy (KetaMORE) for individuals with opioid use disorder who are receiving medication treatment. The main question it aims to answer is whether individuals with opioid use disorder who receive Mindfulness-Oriented Recovery Enhancement in combination with Ketamine-Assisted Psychotherapy will demonstrate greater reductions in opioid use and craving than individuals who receive Ketamine-Assisted Psychotherapy with a non-mindfulness support group.
Participants will be randomly assigned to receive either Mindfulness-Oriented Recovery Enhancement combined with Ketamine-Assisted Psychotherapy or Ketamine-Assisted Psychotherapy combined with a support group control condition. Researchers will compare these groups on days of opioid use, time to first opioid use lapse, craving, and mood, assessed using ecological momentary assessments and standardized measures collected during treatment and follow-up.
Participants assigned to this arm will receive ketamine-assisted psychotherapy combined with Mindfulness-Oriented Recovery Enhancement (MORE). MORE is delivered as a structured, manualized behavioral intervention designed to reduce opioid use by targeting craving, negative affect, and maladaptive reward processing through mindfulness training, cognitive reappraisal, and savoring techniques.
Unmatched intervention: Mindfulness-Oriented Recovery Enhancement (MORE)
Participants assigned to this arm will receive ketamine-assisted psychotherapy combined with a support group intervention. The support group provides nonspecific therapeutic support and group discussion but does not include mindfulness training or structured skills from Mindfulness-Oriented Recovery Enhancement.
Unmatched intervention: Support Group