Open-label, non-randomised, single-infusion study (n=60) testing IV ketamine 0.5 mg/kg over 40 minutes in TRD patients stratified by family history of alcohol use disorder (FHP vs FHN) with 7T MRI measures.
This open-label, non-randomised study enrols treatment-resistant major depressive disorder patients to test whether a family history of alcohol use disorder predicts enhanced antidepressant response to a single subanesthetic ketamine infusion administered during 7T MRI (rs-fMRI and MRS).
Primary outcome is change in MADRS from baseline to 7 days post-infusion; secondary outcomes include vmPFC/vACC glutamate change and acute safety/tolerability measures.
Single subanesthetic ketamine infusion (0.5 mg/kg over 40 minutes) in TRD patients stratified by family history of alcohol use disorder (FHP vs FHN).
Infusion over 40 minutes during 7T MRI (rs-fMRI and MRS).