331. Rapid antidepressant effects of inhaled GH001 in treatment-resistant depression: results from a phase 2b, double-blind, randomized controlled trial with 6-month follow-up
Abstract Background Treatment-resistant depression (TRD) represents a particularly challenging form of major depressive disorder (MDD), defined by an inadequate response to at least two antidepressants given at adequate dose and duration within the current depressive episode. TRD affects nearly one-third of individuals...