Difede 2011a.

Trial name or title	Enhancing Exposure Therapy for Post Traumatic Stress Disorder (PTSD): Virtual Reality and Imaginal Exposure With a Cognitive Enhancer
Methods	Randomised, double‐blind, parallel efficacy study
Participants	War veterans with PTSD
Interventions	DCS (d‐cycloserine ) + prolonged imaginal exposure DCS (d‐cycloserine ) + virtual reality exposure Placebo + prolonged imaginal exposure Placebo (sugar pill) + virtual reality exposure Genetic polymorphism (BDNF Val66Met) obtained from a saliva sample will be examined
Outcomes	CAPS
Starting date	May 2011
Contact information	jdifede@med.cornell.edu
Notes	Phase 3 Study ID: NCT01352637