Effect of drug on circadian rhythm in healthy adult male

Effect of drug on circadian rhythm in healthy adult male - Effect of drug on circadian rhythm

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000029123

Enrollment

Registered

2017-10-01

Start date

2017-10-05

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 volunteer

Interventions

A single dose of drug A single dose of placebo

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Male university undergraduate or graduate students who have standard sleep habits

Exclusion criteria

Exclusion criteria: 1)Subjects who take drug 2)Subjects who are shift worker or night worker 3)Subjects whose DLMO was not detected by screening test

Design outcomes

Primary

Measure	Time frame
Dim Light Melatonin Onset (DLMO)	—

Secondary

Measure	Time frame
Actigraph OSA sleep inventory MA version	—

Countries

Japan

Contacts

Public ContactShigekazu Higuchi

Kyushu University Graduate School of Human Science

higu-s@design.kyushu-u.ac.jp092-553-4523

Outcome results

None listed

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