A randomized, double-blind, placebo-controlled 6-wk trial of the efficacy and tolerability of 5 mg vortioxetine in adults with major depressive disorder

Int J Neuropsychopharmacol. 2013 Mar;16(2):313-21. doi: 10.1017/S1461145712000727. Epub 2012 Sep 11.


Vortioxetine (Lu AA21004) is a multi-modal antidepressant in clinical development for the treatment of major depressive disorder (MDD). The current study evaluated the efficacy and tolerability of 5 mg vortioxetine compared to placebo after 6 wk of treatment in adults with MDD in an out-patient setting. Adults aged 18-75 yr, with a diagnosis of MDD and a baseline Montgomery-Asberg Depression Rating Scale (MADRS) total score ≥30, were randomized to receive either 5 mg vortioxetine or placebo over 6 wk, followed by a 2-wk medication-free discontinuation period. The primary efficacy measure was change from baseline in Hamilton Rating Scale for Depression (HAMD)-24 total score at week 6 compared to placebo. Additional measures included response and remission rates, Clinical Global Impression Scale - Improvement scores, HAMD-24 total score in subjects with baseline Hamilton Anxiety Scale (HAMA) >19 and MADRS-S total score. Adverse events (AEs) were assessed throughout the study. A total of 600 adults were randomized. There were no significant differences in efficacy measures between subjects in the 5 mg vortioxetine and placebo groups at week 6. HAMD-24 total score in subjects with baseline HAMA >19 in the 5 mg vortioxetine group was improved at weeks 3-6 compared to the placebo group (nominal p value <0.05). The most common AEs for the vortioxetine and placebo groups were nausea (19.1 and 9.4%), headache (17.1 and 15.1%) and diarrhoea (11.4 and 7.0%), respectively. In this study of adults with MDD, 5 mg vortioxetine did not differ significantly from placebo in reducing depression symptoms after 6 wk of treatment.

Publication types

  • Meta-Analysis
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Antidepressive Agents / therapeutic use*
  • Depressive Disorder, Major / drug therapy*
  • Double-Blind Method
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Middle Aged
  • Piperazines / therapeutic use*
  • Psychiatric Status Rating Scales
  • Sulfides / therapeutic use*
  • United States
  • Vortioxetine
  • Young Adult


  • Antidepressive Agents
  • Piperazines
  • Sulfides
  • Vortioxetine