Symptom trajectories and clinical outcomes of intravenous ketamine in treatment-resistant depression: A real-world study using group-based trajectory modeling.
Journal of Affective Disorders January 23, 2026 Reinhard Janssen-Aguilar, Jithin Joseph, Huda Al-Shamali et al.
Intravenous (IV) ketamine is an emerging intervention for treatment-resistant depression (TRD), yet the temporal dynamics of response and the optimal number of infusions remain unclear, particularly in real-world clinical populations with psychiatric comorbidities. We conducted a retrospective chart review of 209 adults with TRD treated with IV ketamine at an interventional psychiatry program....