Patients with bipolar disorder suffer from sleep disturbances, even in euthymic phases. Changes in sleep are frequent signs of a new episode of (hypo)mania or depression. Cognitive behavioral therapy for insomnia is an effective treatment for primary insomnia, but has not been introduced to patients with bipolar disorder. The aim is to compare cognitive behavioral therapy added to 'treatment as usual' with just 'treatment as usual'. The investigators hypothesize that cognitive behavioral therapy will improve quality of sleep, stabilize minor mood variations and prevent new mood episodes in euthymic patients with bipolar disorder and insomnia.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
38
CBT-I will be given during 3-6 sessions according to need by two therapists being either psychiatrists or psychologists with clinical experience in CBT-I.
Østmarka Psychiatric Department, St Olavs Hospital
Trondheim, Norway
Change from baseline in quality of sleep at 8 weeks
As assessed by the Insomnia Severity Index (ISI)
Time frame: At 8 weeks from randomization
Change from baseline in quality of sleep at 6 months follow-up
As assessed by the Insomnia Severity Index (ISI)
Time frame: 6 months from end of treatment phase
Variation in sleep registration from baseline to 8 weeks
Comparing registrations of sleep by sleep diaries, actigraphs and polysomnography.
Time frame: At 8 weeks
Variation in sleep registration from baseline to 6 months follow-up
Comparing registrations of sleep by sleep diaries, actigraphs and polysomnography.
Time frame: At 6 months
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