Targeted Plasticity Therapy for PTSD

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age22-79
SponsorThe University of Texas at Dallas

About this trial

Objectives of this study are to provide continued safety assessment for the ReStore system, and to gain further estimates of the effect size of Vagus Nerve Stimulation (VNS) therapy with Prolonged Exposure Therapy (PE) compared to PE with placebo (sham) stimulation in participants with posttraumatic stress disorder (PTSD)

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Diagnosis of chronic PTSD for at least 3 months based on DSM-5 criteria

In the medical opinion of the Principal Investigator (PI), failed at least one adequate course of first-line PTSD treatment per American Psychological Association (APA) guidelines

PCL-5 score greater than 33

Age 22-79 years

Disqualifiers

Currently undergoing prolonged exposure therapy elsewhere

Concurrent participation in another interventional clinical trial

Prior injury to vagus nerve

Prior or current treatment with vagus nerve stimulation

Trial design

Design model

Parallel

Treatments tested in this trial

  • Active VNS stimulation

    Device

    The subjects in this group will be implanted with the ReStore device and receive active Vagus nerve stimulation (VNS) in phase 1

  • Sham VNS stimulation

    Device

    The subjects in this group will be implanted with the ReStore device and receive sham Vagus nerve stimulation (VNS) in phase 1

Treatment groups

20 Participants
are divided into 2 treatment groups
Group A: Immediate VNS GroupActive comparator 1 intervention
Group B: Delayed VNS GroupSham comparator 1 intervention

Trial outcomes

Primary outcomes

1

ReStore System Safety

ReStore System safety by review of any adverse events

Time frame
From surgery to up to 2 years following implantation or until the device is FDA approved, whichever comes first

Secondary outcomes

1

Clinician Administered PTSD Scale for DSM-5(fifth edition of the Diagnostic and Statistical Manual of Mental Disorders)(CAPS-5)

The CAPS-5 is a 30-item structured PTSD diagnostic interview that measures PTSD. Total scores range from 0-80, with higher scores indicating more severe PTSD symptoms symptoms.

Time frame
From baseline up to visit 33 (end of study)
2

PTSD Checklist for DSM-5 (PCL-5) score

The PCL-5 is a 20 item self-report measure that assesses the 20 DSM-5 symptoms of PTSD. Total scores range from 0-80, with higher scores indicating more severe PTSD symptoms symptoms.

Time frame
From baseline up to visit 33 (end of study)
3

PostTraumatic Cognitions Inventory (PTCI)

The PTCI is a 33-item instrument that assesses dysfunctional post-trauma cognitions across self, world, and self-blame to yield a total score. Total scores range from 33-231, with higher scores reflecting greater endorsement of negative posttraumatic cognitions.

Time frame
From baseline up to visit 33 (end of study)
4

Generalized Anxiety Disorder 7-item Scale (GAD-7)

The GAD-7 is a 7-item questionnaire that measures severity of anxiety. Total scores range from 0-21, with higher scores reflecting severe anxiety symptom levels.

Time frame
From baseline up to visit 33 (end of study)

Other outcomes

Sponsors and contacts

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The University of Texas at Dallas

Lead sponsor

Congressionally Directed Medical Research Programs

Collaborator

The University of Texas Health Science Center at San Antonio

Collaborator