Reducing sessions of trauma-focused psychotherapy does not affect effectiveness

January 17, 2018

(Boston) - Posttraumatic Stress Disorder (PTSD) patients treated with as few as five sessions of trauma-focused psychotherapy find it equally effective as receiving 12 sessions.

The findings, which appear in the journal JAMA Psychiatry, have important implications for treating PTSD especially with regard to identifying a treatment that is time-efficient for both patients and providers, addressing a significant barrier to care.

PTSD is a diagnosis incited by physical or psychological trauma and is characterized by flashbacks of past traumatic events, nightmares, intrusive thoughts, avoidance of reminders of trauma, sleep disturbance and hypervigilance leading to social, occupational and interpersonal impairment. PTSD treatment includes trauma-focused therapy, which includes Written Exposure Therapy (WET), a five-session psychotherapy program, or Cognitive Processing Therapy (CPT), a 12-session psychotherapy program that is considered to be a first-line PTSD treatment approach.

WET involves five trauma-focused sessions in which individuals are asked to write about their traumatic experiences followed by scripted instruction, while CPT is a 12-session program in which patients are taught to recognize and challenge dysfunctional cognitions about their traumatic event and current thoughts about themselves, others and the world around them. WET does not include any out-of-session assignments, while patients undergoing CPT are assigned out-of-session assignments following each session.

Through a randomized controlled trial, researchers analyzed 126 adults with a diagnosis of PTSD; 63 individuals were randomized to the WET treatment group and 63 individuals were randomized to the CPT treatment group. Their analysis concluded that WET, while involving fewer sessions, was just as effective as CPT in reducing PTSD symptoms.

"Our findings that WET is an efficient and efficacious as CPT for PTSD may reduce attrition and transcend previously observed barriers to PTSD treatment for both patients and providers," said corresponding author Denise M. Sloan, PhD, professor of psychiatry at Boston University School of Medicine and associate director in the Behavioral Science Division, National Center for PTSD at the VA Boston Healthcare System.
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Funding for this study was provided by grant R0MH095737 from the National Institute of Mental Health.

Boston University School of Medicine

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