Intensive 7-day Treatment for PTSD Combining Ketamine With Exposure Therapy

Long term structural and functional neural changes following a single infusion of Ketamine in PTSD

This pilot RCT study (n=27) investigated the potential of a single ketamine infusion (35mg/70kg), followed by brief exposure therapy, to enhance the extinction of trauma memories in individuals diagnosed with PTSD. Participants were randomly assigned to receive either ketamine or midazolam after retrieval of the traumatic memory, and underwent trauma-focused psychotherapy 24 hours later for four days. While PTSD symptoms improved equally in both groups, post-treatment ketamine recipients showed lower amygdala and hippocampus reactivation to trauma memories than midazolam recipients, suggesting that ketamine may enhance the post-retrieval extinction of trauma memories.

Published

June 3, 2023

Journal

Neuropsychopharmacology

Authors

Duek, O., Korem, N., Li, Y., Kelmendi, B., Amen, S., Gordon, C., Milne, M., Krystal, J. H., Levy, I., Harpaz-Rotem, I.