Survey on the Understanding of Placebos in Japan

Survey on the Understanding of Placebos in Japan - Survey on the Understanding of Placebos

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000060534

Enrollment

400

Registered

2026-01-31

Start date

2026-02-01

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

Healthy Adults

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Healthy adults aged 18 years or older. Native Japanese speakers with the ability to understand and respond in Japanese.

Exclusion criteria

Exclusion criteria: No specific exclusion criteria were defined.

Design outcomes

Primary

Measure	Time frame
Knowledge and Acceptability Scores of Placebos	—

Secondary

Measure	Time frame
Placebo Quiz score, willingness to participate in each treatment, responses for preferring specific explanations of placebo effects Optimism and pessimism scores, Five-factor model of personality, Trait anxiety	—

Countries

Japan

Contacts

Public ContactYasuka Sahara

Chiba University Graduate School of Medicine Cogntive Behavioral Physiology

22fd0144@student.gs.chiba-u.jp043-226-2027

Outcome results