Investigation of antidepressant efficacy of oral ketamine treatment

This double-blind, placebo-controlled trial (n=60) aimed to investigate the antidepressant efficacy of oral ketamine treatment in patients experiencing a major depressive episode within the scope of major depressive or bipolar disorder (MDD/BD).

Conducted by the Medical University of Vienna in Austria, the trial spanned a duration of approximately 2 years. The primary objective was to assess the antidepressant efficacy of oral ketamine in a randomized and controlled study design, with secondary objectives focusing on tolerability and clinical utility.

The trial involved adults aged 18 to 64, diagnosed with a major depressive episode. Notable exclusion criteria included recent initiation of antidepressant treatment and substance abuse history.

The trial utilized two treatment arms, involving the administration of oral ketamine and a comparator, midazolam hydrochloride. The primary endpoint was measured using the Montgomery-Åsberg Depression Rating Scale (MADRS) before and after treatment sessions. Secondary endpoints included the Clinician Administered Dissociative States Scale (CADSS) evaluation.

The trial concluded on October 13, 2021, with authorized Competent Authority Decision and favorable Ethics Committee Opinion received.

Trial Details



Trial Number

Data attribution

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