An open label study to assess the safety, tolerability, and effects of intranasal ketamine in combination with rTMS for patients with treatment-resistant major depressive disorder (TRD).
Open-label, single-group study (n=20) assessing a single sub-anesthetic intranasal ketamine dose (0.5 mg/kg, max 40 mg) given prior to a standard 6-week course of rTMS in patients with treatment-resistant depression.
Primary outcome is response to rTMS as measured by the IDS-SR; safety and tolerability assessed throughout. Screening excludes prior ketamine use, significant suicidality, and conditions contraindicating rTMS or ketamine.
Single-group open-label arm: single intranasal ketamine dose followed by a 6-week course of rTMS.
Intranasal atomised ketamine; max dose 40 mg.
Repetitive transcranial magnetic stimulation (rTMS) per FDA-approved/standard course beginning day after baseline.