Cognitive-behavioral therapy for insomnia: A review of 8 studies

Outcomes

• The CBT-I group had higher initial CPAP acceptance and greater average nightly adherence to CPAP (61 minutes more) than the TAU group.
• Significant improvements were noted in global insomnia severity, nighttime insomnia complaints, and dysfunctional sleep-related cognitions at 6 months in the CBT-I group compared with TAU.
• No differences between the 2 groups were noted in sleep diary parameters or daytime impairments at 6 months.

Conclusions

• Patients with COMISA can benefit from receiving CBT-I before starting CPAP therapy because CBT-I can improve immediate acceptance of CPAP and may help to maintain adherence to CPAP over time.
• Patients with sleep apnea should be evaluated for comorbid insomnia, and CBT-I should be considered before starting CPAP treatment.

4. Asarnow LD, Bei B, Krystal A, et al. Circadian preference as a moderator of depression outcome following cognitive behavioral therapy for insomnia plus antidepressant medications: a report from the TRIAD study. J Clin Sleep Med. 2019;15(4):573-580.

The Treatment of Insomnia and Depression (TRIAD) study reported the effects of combining antidepressants with CBT-I in patients with major depressive disorder (MDD) and insomnia. Asarnow et al¹² examined the moderation of circadian preference in the reduction of depression and insomnia symptoms severity during the same trial.

Study design

• In this RCT, 139 participants with MDD and insomnia were treated with an antidepressant (escitalopram, sertraline, or desvenlafaxine) and randomized to 8 weeks of CBT-I or control therapy (sleep education).
• Measurements used were Composite Scale of Morningness for circadian preference (morningness vs eveningness), depression severity with the Hamilton Rating Scale for Depression, and insomnia severity using the ISI.

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