The goal of this two-arm pilot randomized controlled trial is to test a behavioral intervention that integrates three evidence-based cognitive behavioral interventions (written exposure therapy; WET, cognitive behavioral therapy for insomnia; CBT-I, and cognitive behavioral therapy for nightmares; CBT-N) among firefighters. The main questions it aims to answer are: * Is the behavioral intervention feasible, acceptable, and effective in reducing symptoms of posttraumatic stress, insomnia, and nightmares? * What is the efficacy of efficient treatment vs. delayed treatment (2-4 week waitlist) in reducing symptoms of posttraumatic stress, insomnia, and nightmares? We will beta test the intervention in 1-2 groups of 3-5 firefighters. Then we will randomize 50 participants to immediate or delayed (2-4 week waitlist) treatment. Consented participants will: * Complete self-report and interview measures assessing posttraumatic stress disorder, insomnia (PTSD), and nightmares * Attend an individual treatment orientation session * Attend a 4-day (\~3 hours per day over 4 consecutive days) group treatment that integrates WET, CBT-I, and CBT-N * Attend an individual booster session held approximately one week later * Complete self-report measures before, during, and after treatment, and at a 3-month follow up assessment and a clinical interview before and after treatment to assess program efficacy.
Age range
18 Years – 65 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Clinician Administered PTSD Scale (CAPS-5)
Timeframe: Change from baseline to post treatment (~4 weeks post baseline)
Structured Clinical Interview for DSM-5 Sleep Disorders- Revised (SCISD-R)
Timeframe: Change from baseline to post treatment (~4 weeks post baseline)
Insomnia Severity Index (ISI)
Timeframe: Change from baseline through 3 months post treatment
Nightmare Disorders Index
Timeframe: Change from baseline through 3 months post treatment
Posttraumatic Stress Disorder Checklist (PCL-5)
Timeframe: Change from baseline through 3 months post treatment