Effects of Food Containing Asparagus Extract (ONR-8) on sleep conditions in shift workers

Effects of Food Containing Asparagus Extract (ONR-8) on sleep conditions in shift workers - Effects of Food Containing Asparagus Extract on sleep conditions in shift workers

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000034109

Enrollment

Registered

2018-09-12

Start date

2018-09-14

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

sleep disorder

Interventions

Intake the Food containing asparagus extract once a day for 4 weeks

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: nurses who work on a two-shift system and feel sleep disorders

Exclusion criteria

Exclusion criteria: workers who are in treatment of depression, sleep apnea disorders, narcolepsy, narcolepsy, etc. workers who take antidepressant drugs or sleeping medicine workers who live with their children below school age

Design outcomes

Primary

Measure	Time frame
Quality of sleep (Pittsburgh Sleep Quality Index)	—

Secondary

Measure	Time frame
Psychomotor Vigilance. Task(PVT) Presenteeism (WFun) Psychological distress (K6) Work engagement	—

Countries

Japan

Contacts

Public ContactTomohisa Nagata

University of Occupational and Environmental Health, Japan Institute of Industrial Ecological Sciences

tomohisa@med.uoeh-u.ac.jp093-603-1611

Outcome results

None listed

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