The primary objective of this study is to determine the effectiveness of serial infusions of intravenous (IV) ketamine in adults with treatment-resistant depression (TRD).
Open-label, single-group treatment study of 10 adults with treatment-resistant depression receiving serial slow IV ketamine infusions (0.5 mg/kg over 40 minutes).
Dosing schedule: twice weekly for 4 weeks then weekly for 4 weeks (12 total infusions). Primary outcome is remission based on depressive severity; a four-week observational follow-up will record clinical status and include a neurocognitive task.
Serial IV ketamine infusions 0.5 mg/kg over 40 minutes (12 sessions across 8 weeks).
Slow IV infusion over 40 minutes; minimal sedation.