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Hypotensive effects of Umezu polyphenols among community-dwelling hypertensive patients not requiring medication

Hypotensive effects of Umezu polyphenols among community-dwelling hypertensive patients not requiring medication - Hypotensive effects of Umezu polyphenols

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000029394
Enrollment
100
Registered
2017-10-03
Start date
2013-07-11
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

Hypertension

Interventions

Four capsules containing Umezu polyphenols (200 mg per capsule) daily for 12 weeks, followed by 2 weeks of wash-out period and 12 months of follow-up period with mail surveys every 3 months. Four plac

Sponsors

Wakayama Medical University
Lead Sponsor
Kindai University Wakayama Industry Promotion Foundation
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: People with high-normal blood pressure (systolic blood pressure (SBP), 130-139 mmHg; or diastolic blood pressure (DBP), 85-89 mmHg) or low- and moderate-risk grade I hypertension (SBP, 140-159 mmHg; or DBP, 90-99 mmHg) at the clinic, taking no antihypertensive agents. (Recruited from people living in or working for a corporation in Minabe Town, Wakayama Prefecture, Japan, pursuant to Guidelines for the Management of Hypertension JSH 2009, published by the Japanese Society of Hypertension.)

Exclusion criteria

Exclusion criteria: (1) People who eat two or more Umeboshi (pickled plums) per day regularly, (2) people with ingestion difficulty, (3) people with history of serious chronic conditions including cerebrovascular disease, ischemic heart disease and cancer (malignant tumor), (4) people under medication for hypertension, (5) people who are pregnant or within 1 year after delivery, (6) people having night-shift work with night duty, (7) people who cannot participate in follow-up blood pressure measurements, and (8) people whose participation is judged to be inappropriate due to any other reason by the responsible physician.

Design outcomes

Primary

MeasureTime frame
Decrease of systolic blood pressure and diastolic blood pressure after 12 weeks of intake of Umezu polyphenols in (1) blood pressure at home, and (2) blood pressure at the examination site

Secondary

MeasureTime frame
Findings from blood tests (hematology and biochemistry) Anthropometric factors Self-perceived physical and mental health status evaluated with SF-8 Self-perceived Symptoms Changes in data of annual health checkups

Countries

Japan

Contacts

Public ContactShigeki Takemura

Wakayama Medical University Department of Hygiene, School of Medicine

steakmmi@wakayama-med.ac.jp+81-(0)73-441-0646

Outcome results

None listed

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