Experiencing of double blind study of caffeine intake for medical students

Experiencing of double blind study of caffeine intake for medical students - Experiencing of double blind study for medical students

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000032060

Enrollment

1600

Registered

2019-05-01

Start date

2018-11-01

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

Interventions

150 mg of caffeine intake. No caffeine intake.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The second grade medicalstudents in Ehime University who agree to participate in this study without caffeine intake after 17 o-clock the day before.

Exclusion criteria

Exclusion criteria: 1. Medical students who are not able to drink coffee due to body condition or other reasons. 2. Medical students whom the study director judges inadequate.

Design outcomes

Primary

Measure	Time frame
Improvement of caffeine in take on mental calculation.	—

Countries

Japan

Contacts

Public ContactMasaki Mogi

Ehime University, Graduate School of Medicine Department of Pharmacology

mmogi@m.ehime-u.ac.jp089-960-5260

Outcome results

None listed

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