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Ameliorating effect of food product including Theanine and Casein peptide on sleep in postmenopausal women with complain of deteriorated sleep health : A randomized, double blind, placebo-controlled trial

Ameliorating effect of food product including Theanine and Casein peptide on sleep in postmenopausal women with complain of deteriorated sleep health : A randomized, double blind, placebo-controlled trial - Effect of Theanine and Casein peptide on sleep: A randomized, double blind, placebo-controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000018725
Enrollment
40
Registered
2015-08-20
Start date
2015-08-25
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 individuals with relatively-deteriorated sleep health

Interventions

The food containing Theanine(200 mg) and Casein peptide (150 mg) Treatment duration: one month. Placebo Treatment duration: one month.

Sponsors

S&A Associates, Inc.
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: Healthy postmenopausal women with relatively-deteriorated sleep health screened by sleep habits questionnaire and Pittsburgh sleep quality index (PSQI)

Exclusion criteria

Exclusion criteria: Patients having medical symptoms leading to sleep disturbance seriously Individuals considered medically inappropriate attend to the study

Design outcomes

Primary

MeasureTime frame
Autonomic nerve activity assessed by heart rate variability Sleep variables assessed by actigraphy at before, 1-week, 2-week, 4-week consumption.—

Secondary

MeasureTime frame
Sleep quality assessed by subjective rating scales at before, 1-week, 2-week, 4-week consumption.—

Countries

Japan

Contacts

Public ContactNoriko Matsuura

S&A Associates, Inc. S&A Associates, Inc.

matsuura@s-a-associates.com03-3249-7510

Outcome results

None listed

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