RCT of CBT Combined With D-Cycloserine for Treating PTSD

  • STATUS
    Recruiting
  • participants needed
    20
  • sponsor
    Université de Montréal
Updated on 7 November 2020
behavior therapy
d-cycloserine

Summary

The purpose of this study is to investigate if the effectiveness of cognitive-behavioral therapy for post-traumatic stress disorder can be increased by combining it with D-cycloserine (TCC/D-cycloserine) by comparing with a placebo (TCC/placebo).

Description

Post-traumatic stress disorder (PTSD) is one of the most frequent anxiety disorder in the general population (Kessler and al., 2005). Currently, the treatment of choice for PTSD is cognitive-behavioral therapy (CBT; Foa, Davidson and Frances, 1999). Based on remission rates after treatment, successful outcomes of CBT for PTSD vary between 46 and 54 % when dropouts are considered, and between 56 and 70% among those who completed their therapy (Bradley and al., 2005). Thus, there is room for improvement. Recently, the results of two published studies on the treatment of phobia of heights (Ressler and al., 2004) and social phobia (Hofman, 2006) indicated that the efficacy of CBT was increased by adding D-cycloserine. The superior efficacy of CBT/D-cycloserine over CBT/Placebo in the treatment of anxiety disorders can result from a greater release of glutamate, a substance facilitating the extinction of fear (Davis, Myers, Ressler and Rothbaum, 2005; Richardson, Ledgerwood an Cranney, 2004). However, to our knowledge, no study has yet compared CBT/D-cycloserine to CBT/Placebo in the treatment of PTSD. The main hypothesis of the current study is that the efficacy of CBT for PTSD will be increased when combined with D-cycloserine compared to a placebo.

Details
Condition Post-Traumatic Stress Disorder
Treatment D-cycloserine, Cognitive-Behavioral Therapy
Clinical Study IdentifierNCT00452231
SponsorUniversité de Montréal
Last Modified on7 November 2020

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