Study to evaluate what patients basline factors affect placebo effect in patients with insomnia

Study to evaluate what patients basline factors affect placebo effect in patients with insomnia - Study to evaluate what patients basline factors affect placebo effect in patients with insomnia

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000003777

Enrollment

380

Registered

2010-06-18

Start date

2010-02-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Insomnia

Interventions

Placebo (the database only from placebo groups will be used for the current study)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: All the patients randominzed in placebo group in the clinical study in patients with primary insomnia

Exclusion criteria

Exclusion criteria: Patients who were not included in FAS were excluded

Design outcomes

Primary

Measure	Time frame
Change in subjective sleep latency	—

Countries

Japan

Contacts

Public ContactAtsushi Ogawa

Graduate School of Medicine and Public Health, Kyoto University Department of Pharmacoepidemiology

ogawa.atsushi@fx7.ecs.kyoto-u.ac.jp

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026