Placebo-controlled , double-blind, randomized controlled trials that verify effects of caffeine to university students' concentration

Placebo-controlled , double-blind, randomized controlled trials that verify effects of caffeine to university students' concentration - caffeine trial for university students

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000024015

Enrollment

Registered

2016-10-31

Start date

2018-10-15

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

Adult

Interventions

Regular Coffee 150ml, 1time Decaf 150ml, 1time

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: University Students of Keio Univesity, School of Medicine

Exclusion criteria

Exclusion criteria: Subjetct who cannot drink or have not drunk coffee

Design outcomes

Primary

Measure	Time frame
Accuracy and speed of calculation	—

Countries

Japan

Contacts

Public ContactAyano Takeuchi

Keio University School of Medicine

ayanotakeuchi@keio.jp0353633758

Outcome results

None listed

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

Placebo-controlled , double-blind, randomized controlled trials that verify effects of caffeine to university students&#39; concentration