Effectiveness of Combining Behavioral and Pharmacologic Therapy for Complex Insomnia in Veterans With PTSD (PRECEPT-D)

  • End date
    Mar 30, 2024
  • participants needed
  • sponsor
    VA Office of Research and Development
Updated on 20 February 2022


Obstructive sleep apnea (OSA) is commonly reported in Veterans with post-traumatic stress disorder, which can potentiate symptoms of anxiety and depression, daytime symptoms and worsen nightmares. Continuous positive airway pressure (CPAP) is the most effective therapy but adherence to treatment is suboptimal. Insomnia is considered a barrier to long-term adherence. The overarching theme of the proposal is to compare the effectiveness of cognitive behavioral therapy for insomnia (CBT) plus eszopiclone, a nonbenzodiazepine hypnotic, versus CBT alone in Veterans with PTSD who are diagnosed with both OSA and insomnia, using a randomized, clinical trial, on sleep quality of life, PTSD severity, and CPAP adherence.


As many as 90% of Veterans with posttraumatic stress disorder (PTSD) report nightmares and insomnia and even when nightmares are excluded, sleep disturbances are the most prevalent symptoms of PTSD with roughly 50%-70% of patients suffering from co-occurring sleep disorders. The typical sleep complaints include nightmares, distressed awakenings, nocturnal panic attacks, sleep terrors and insomnia.

While it has long been established that PTSD engenders sleep disturbances and averse clinical outcomes, current investigations indicate that disordered sleep is also a risk factor for the development of PTSD. In military personnel with combat exposure, comorbid insomnia and OSA, a condition originally labeled as "complex insomnia" has emerged as one of the most challenging sleep disorder to manage. In the presence of PTSD, the co-occurrence of OSA and insomnia is also associated with significant morbidity. Veterans with both PTSD and complex insomnia report more psychiatric symptoms, chronic pain, and higher rates of suicide. Further, these Veterans may have more difficulty adhering to CPAP because of increased awareness of the mask due to frequent awakenings and an inability to initiate or return to sleep with the mask in place. Fortunately, there are effective treatments for each of these sleep disorders. Traditional treatment models consist of treating OSA first, followed by adjunctive or concurrent treatment for insomnia only if the response to CPAP is deemed unsatisfactory. However, the suboptimal response observed in Veterans with PTSD from such an approach in terms of quality of life, PTSD symptoms, and CPAP adherence highlights the need to examine alternative modalities of treatment. At present, there are no general guidelines on the best strategy to treat complex insomnia in Veterans with PTSD. Prior studies have shown that cognitive behavioral therapy (CBT) is effective for treating insomnia when compared with hypnotic agents.Whether combination therapy offers a therapeutic advantage over CBT alone for complex insomnia in Veterans with PTSD is yet to be determined. The objective of this proposal is to conduct a pragmatic, randomized, parallel clinical trial comparing the effectiveness of Brief Behavioral Therapy for Insomnia in Military Veterans (BBTI-MV) plus eszopiclone, a non-benzodiazepine hypnotic, versus BBTI-MV alone in 52 combat-exposed Veterans with PTSD and OSA with coexisting insomnia on global sleep quality of life, PTSD symptoms, and CPAP adherence. The topic addresses several key areas of unmet needs for Veterans with PTSD and sleep disordered breathing. Among these are: 1) the association between complex insomnia and PTSD on global sleep quality of life; and 2) the effectiveness of combined treatment of CBT and eszopiclone versus CBT alone in improving sleep quality and PTSD symptoms; and 3) the impact of each treatment regimen on CPAP adherence. By establishing the most effective therapy in alleviating insomnia that complicates the presence of OSA in Veterans with PTSD, higher CPAP adherence will ultimately translate into improved cognitive function, enhanced quality of life, and suppression of PTSD symptoms. The long term benefit of this trial will also lead to opportunities for more personalized treatment including delivery method via mobile health technologies which will allow greater assimilation of results across several domains.

Condition Complex Insomnia
Treatment Eszopiclone, Brief Behavioral Therapy for Insomnia
Clinical Study IdentifierNCT03937713
SponsorVA Office of Research and Development
Last Modified on20 February 2022


Yes No Not Sure

Inclusion Criteria

Age >18 years and <65 years old
Diagnosis of PTSD as determined by the intake conducted through the PTSD Clinic or the Mental Health Clinic
Documented obstructive sleep apnea by polysomnography (AHI 5 or more/hour) who are non-adherent to CPAP as defined by device usage of less than 4 hours per night
Chronic ( 3 months' duration) insomnia disorder
Psychotherapeutic treatment stable for at least 4 weeks prior to randomization
Capable of giving informed consent

Exclusion Criteria

Insomnia secondary to pain
History of narcolepsy and/or cataplexy
Treatment for seizure disorders
Pregnant or lactating
History of clinically significant hepatic impairment
History of hypersensitivity, intolerance, or contraindication to eszopiclone
Use of potent cytochrome p450 3A4 inhibitor medications (ritonavir, nelfinavir, indinavir, erythromycin, clarithromycin, troleandomycin, ketoconazole, itraconazole) and is unwilling or it is clinically contraindicated to stop the medication
Unwilling to try or use CPAP
Diagnosis of current schizophrenia or schizoaffective disorder
Diagnosis of a substance dependence/abuse disorder in the past year
History of complex nocturnal behaviors while using eszopiclone
Severe psychiatric instability or severe situational life crises, including evidence of being actively suicidal or homicidal, or any behavior which poses an immediate danger to patient or others
Diagnosis of bipolar disorder
Consumption of more than two alcoholic beverages per night
Documented or self-reported resolution of insomnia from current behavioral or pharmacological treatment of insomnia
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