About this trial
This study is a two-arm individually randomized group treatment clinical trial evaluating behavioral therapies for insomnia, nightmares, and PTSD. The study will compare cognitive-behavioral therapy for insomnia and nightmares to sleep hygiene (Control), both integrated with Written Exposure Therapy for PTSD and delivered in an accelerated (i.e., 5-day) group treatment format, preceded and followed by individual treatment sessions. 160 participants will be randomized into one of two study conditions.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Defense Enrollment Eligibility Reporting System (DEERS) eligible active-duty military personnel or veteran, 18-65 years old.
Ability to speak and read English.
Clinically significant PTSD symptoms (CAPS-5 > 25 with at least one Intrusion symptom and at least one Avoidance symptom).
Clinically significant symptoms of insomnia disorder (Structured Clinical Interview for Sleep Disturbance DSM-5 (SCISD) Insomnia Criteria are met and Insomnia Severity Index (ISI) > 11).
Disqualifiers
Current suicide or homicide risk meriting crisis intervention.
Inability to comprehend the baseline screening questionnaires.
Unwilling to remain abstinent from alcohol during therapy sessions.
Serious mental health symptoms, such as mania, psychosis, alcohol or substance use disorders warranting immediate clinical attention based on interviewer assessment and clinical judgement.
Trial design
Parallel
Treatments tested in this trial
Cognitive-Behavioral Therapy for Insomnia (CBTi)
BehavioralCBTi focuses on stimulus control, eliminating maladaptive coping habits, reducing arousal, and challenging maladaptive thoughts about sleep in an effort to reduce time to fall asleep and time awake during the night.
Cognitive Behavioral Therapy for Nightmares (CBTn)
BehavioralCBTn involves writing about a distressing or frequent nightmare, rewriting the narrative of the nightmare to target trauma-related themes, and reading the rescripted nightmare narrative.
Written Exposure Therapy (WET)
BehavioralWET is a trauma-focused intervention in which individuals write about their worst traumatic experience following scripted instruction from the therapist.
Sleep Hygiene
BehavioralInvolves reviewing sleep diary data, sleep education, and reviewing and discussing sleep hygiene practices.
Treatment groups
Trial outcomes
Primary outcomes
Posttraumatic Stress Disorder Checklist (PCL-5)
Self-report measure update of the PCL designed to assess PTSD symptoms as defined by the DSM-5. Total scores range from 0-80 (higher scores indicate greater PTSD severity).
Insomnia Severity Index (ISI)
The ISI assesses perceived severity of insomnia. Total scores range from 0-28 (higher scores indicate greater insomnia severity).
Nightmare Disorders Index
The NDI is a self-report assessment of nightmare disorder.
Secondary outcomes
Clinician Administered PTSD Scale (CAPS-5)
The CAPS-5 is a structured clinical interview that assesses the presence and severity of PTSD symptoms. Total scores range from 0-80 (higher scores indicate greater PTSD severity).
Structured Clinical Interview for DSM-5 Sleep Disorders- Revised (SCISD-R)
The SCISD-R is a semi-structured interview designed to obtain a sleep history and screen for certain sleep disorders and diagnose others, including insomnia, hypersomnia, circadian rhythm sleep-wake disorders, sleep-disordered breathing, and parasomnias.
Generalized Anxiety Disorder Screener (GAD-7)
GAD-7 is a 7-item measure that assesses generalized anxiety symptomology. Total scores range from 0-21 (higher scores indicate greater anxiety).
Trauma-Related Nightmare Survey (TRNS)
The TRNS assesses nightmare frequency, disturbance, and characteristics
Other outcomes
Neuropsychological battery
The Neuropsychological battery draws from the from NIH toolbox Cognitive Battery and is comprised of the following tasks: Picture Vocab, Face Name Associative Memory Exam Test, Flanker Task, Oral Symbol Digit, Picture Sequence, Pattern Comparison, Dimensional Change, and Face Name Associative Memory Exam Delay.
Split Week Self-Assessment of Sleep Survey (SASS-Y)
The SASS-Y measures average bedtime, sleep time, sleep onset latency, number of awakenings, wake time after sleep onset, wake time, out of bedtime and sleep quality.
Sleep Diary and Nightmare Log
The Sleep Diary and Nightmare Log assess daily subjective sleep patterns and to inform treatment recommendations.
History of Head Injuries
History of Head Injuries is a 3 question screener that assesses for head injury and altered consciousness.
Locations
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Sponsors and contacts
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Palo Alto Veterans Institute for Research
Lead sponsor
The University of Texas Health Science Center at San Antonio
Collaborator
University of Arizona
Collaborator
NDRI-USA, Inc.
Collaborator