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Evaluate the efficacy of internet-based therapy for PTSD and the role of therapeutic alliance as a moderator.

April 19, 2007BMC PsychiatryOpen Access

Internet-based treatment for PTSD reduces distress and facilitates the development of a strong therapeutic alliance: a randomized controlled clinical trial

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Evaluate the efficacy of internet-based therapy for PTSD and the role of therapeutic alliance as a moderator.
Randomized controlled trial with 96 patients allocated to internet-based CBT or waiting list control.
Ten sessions of therapy conducted over 5 weeks with follow-up assessments at treatment end and 3 months post-treatment.
Primary outcome was PTSD severity, with secondary outcomes including depression, anxiety, dissociation, and physical health.
PTSD severity improved with a large effect size (d = 1.40) for the treatment group compared to control.
Patients showed significantly greater reductions in co-morbid depression and anxiety effects sustained at 3-month follow-up.
High ratings of therapeutic alliance correlated with improved treatment outcomes and low drop-out rates.

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Randomized trial shows improved PTSD symptoms in a German-speaking population, indicating effective online therapy.

Knaevelsrud et al. (2007) studied this question.

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