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.