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Research · Randomized controlled trial

Effects of Passiflora incarnata on polysomnographic sleep parameters in subjects with insomnia disorder: a double-blind randomized placebo-controlled study

What it found

Total sleep time increased significantly versus placebo (borderline, P=0.049); sleep efficiency and wake-after-sleep-onset did not differ from placebo.

Design
Randomized controlled trial
Year
2020
Sample size
110
Population
adults meeting DSM-5 criteria for insomnia disorder
Intervention
passionflower extract vs placebo for 2 weeks
Outcome
polysomnography (total sleep time, sleep efficiency, WASO), ISI, PSQI
Journal
International Clinical Psychopharmacology

Citation last checked 2026-06-21.