ESKALE: descriptive study of patients with treatment-resistant depression treated with esketamine, within the framework of the cohort ATU, the post-ATU program or the post-marketing period

Effectiveness and factors associated with esketamine response during the 4-week induction period for treatment-resistant depression: post-hoc analysis of the real-world ESKALE study

This post-hoc analysis (n=128) of the French real-world ESKALE study found that intranasal esketamine produced a rapid and steadily increasing antidepressant response in patients with treatment-resistant depression over four weeks (response rate rising from 19% at week one to 47% at week four), and that experiencing dissociation during the first week of treatment may be an early indicator of a positive response.

Published

March 10, 2026

Journal

Journal of Psychiatric Research

Authors

Samalin, L., Rothärmel, M., Mekaoui, L., Sauvaget, A., Wicart, C., Gaudre-Wattine, E., Cohignac, V., Malatesta, A., Dupin, J.