Vagus nerve stimulation therapy for treatment-resistant PTSD.

Area of Science:

• Neuroscience
• Psychiatry
• Medical Devices

Background:

• Posttraumatic stress disorder (PTSD) is a prevalent and disabling condition with limited treatment options for many.
• Existing therapies for PTSD do not achieve remission in a significant portion of patients.
• A novel neuromodulation therapy combining prolonged exposure with vagus nerve stimulation (VNS) was developed.

Purpose of the Study:

• To assess the safety and feasibility of a novel neuromodulation therapy for treatment-resistant PTSD.
• To evaluate the efficacy of combined prolonged exposure therapy and VNS in reducing PTSD symptoms.
• To determine the durability of treatment effects for PTSD.

Main Methods:

• A prospective, open-label, early feasibility study was conducted.
• Nine individuals with moderate to severe treatment-resistant PTSD received 12 sessions of prolonged exposure therapy combined with VNS.
• Clinical assessments were performed pre-therapy, post-therapy, and at 1, 3, and 6 months follow-up.

Main Results:

• VNS therapy combined with prolonged exposure led to significant and clinically meaningful reductions in PTSD symptoms (CAPS-5, PCL-5, HADS; p < 0.001).
• All participants achieved remission of PTSD diagnosis post-treatment.
• Observed benefits persisted at 6 months, with no serious device-related adverse events.

Conclusions:

• VNS therapy combined with prolonged exposure is safe and feasible for treating PTSD.
• This novel approach demonstrates potential for lasting remission in treatment-resistant PTSD.
• Further validation in a randomized controlled trial is warranted.