What this phase means
Phase 2/3: earlier tests looked promising enough to expand. This stage asks, in a larger group, whether the treatment really works and is safe enough to seek approval.
Phase labels are FDA/ICH categories applied to the registry Phase field. They are not a finding that this study succeeded.
What the registry says happens
If you join, the listed intervention(s) are Ketamine (0.5 mg/kg), or Behavioural Activation Therapy. The registry lists allocation as randomized. The goal of this clinical trial is to see if combining ketamine with behavioral activation (BA) therapy to treat moderate to severe treatment-resistant depression improves depressive symptoms and general functioning more than ketamine alone.
They plan to enroll about 60 people at Ottawa. Taking part typically means taking a study drug (or dummy pill), following a program (exercise, therapy, diet, or an app) plus check-ins.
Official title (unrewritten)
Optimizing the Synergy Between Behavioural Activation Therapy and Intravenous Ketamine for Treatment-Resistant Depression
Interventions: Ketamine (0.5 mg/kg), Behavioural Activation Therapy
Primary outcome (registry wording): Change in MADRS from Baseline