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The effects of Keishi-bukuryo-gan-ryo-ka-yokuinin on fatigue --- A placebo-controlled, double-blind study

The effects of Keishi-bukuryo-gan-ryo-ka-yokuinin on fatigue --- A placebo-controlled, double-blind study - The effect of Keishi-bukuryo-gan-ryo-ka-yokuinin on fatigue

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000001532
Enrollment
80
Registered
2008-11-28
Start date
2008-12-01
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

Easy fatigability

Interventions

Four tablets of KBKY, twice a day (8 tablets as a total), for 4 weeks
in the case of women, from the beginning of menstruation to the next menstruation. Four placebo tablets, twice a day (8 tablets as a total), for 4 weeks
in the case of women, from the beginning of menstruation to the next menstruation.

Sponsors

Polyene Project, Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Normal volunteers of 20-50 years of age

Exclusion criteria

Exclusion criteria: Those who have histories of or are suffering from serious diseases or metabolic/endocrine diseases. Those who are allergic to KBKY. Those of frail constitution. Menopausal women. Those who are pregnant, lactating or planning to be pregnant. Those who are not suitable for the study according to the doctors in charge of this trial.

Design outcomes

Primary

MeasureTime frame
Changes in fatigue levels measured with the POMS test 4 weeks after KBKY administration.

Secondary

MeasureTime frame
After 4 weeks of KBKY administration, we will measure fatigue-related materials in blood, female hormones, cerebral blood flow, facial skin contents of oil and water, autonomous nervous system, and the frontal-lobe-related functions (Krepelin test and questionnaires measuring concentration, motivation, calculation (planning), and alertness); also we will check whether subjects put their houses (living rooms etc.) in order.

Countries

Japan

Contacts

Public ContactKei Hamazaki

Polyene Project, Ltd. Section of Clinical Application, Dept of Clinical Science

keihama@med.u-toyama.ac.jp076-432-8760

Outcome results

None listed

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