Patients were randomized to receive either real or sham-tDCS as well as anti-depressant drugs. tDCS was applied over the left (anode) and right (cathode) dorsolateral prefrontal cortex (DLPFC). Patients visited the hospital to get tDCS administrations 5 days a week for 2 weeks. They were evaluated every 2 weeks.
In this randomized, single-blinded clinical trial, 58 patients with major depressive disorder were assigned to active and sham tDCS stimulation groups in a 1:1 ratio, and treatment responses were evaluated biweekly over six weeks.