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Olmesartan-based versus Amlodipine-based Strategies for Circulating Marker Modification in Essential Hypertension Study

Olmesartan-based versus Amlodipine-based Strategies for Circulating Marker Modification in Essential Hypertension Study - OASES Study

Status
Unknown
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000000525
Enrollment
400
Registered
2006-11-21
Start date
2006-03-01
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

Essential Hypertension

Interventions

Olmesartan (max. dose=40 mg/day)-based anti-hypertensive medical therapy Amlodipine (max. dose=10 mg/day)-based anti-hypertensive medical therapy

Sponsors

Department of Cardiovascular Medicine, Kyoto University Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Age 50–79 years. 2. Untreated or uncontrolled patients with essential hypertension (systolic BP=>140 mmHg or diastolic BP=>90 mmHg in a sitting position at clinic). 3. No previous medication of ACE inhibitors or ARB within 3 months. 4. Obtained written informed consent.

Exclusion criteria

Exclusion criteria: 1.Cerebrovascular and cardiovascular events including myocardial infarction, cerebral infarction, cerebral hemorrahge and subarchnoidal hemorrahge within 6 months. 2.PTCA or CABG performed within 6 months. 3.Scheduled PTCA or CABG in the future. 4.Congenital or rheumatic heart disease. 5.Severe arrhythmia. 6.Severe liver insufficiency. 7.Severe renal insufficiency. 8.Active cancer or treatment for cancer within 5 years. 9.Pregnancy, possible pregnancy. 10.Not suitable to the clinical trial as judged by a physician.

Design outcomes

Primary

MeasureTime frame
(1) Cardiovascular risk marker levels (2) Changes in cardiovascular risk marker levels

Secondary

MeasureTime frame
Major cardiovascular adverse events (cardiac death, non-fatal myocardial infarction, revascularization or hospitalization by angina, hospitalization by heart failure, cerebrovascular events: cerebral infarction, cerebral hemorrhage, subarchnoidal hemorrhage)

Countries

Japan

Contacts

Public ContactYutaka Furukawa

Kyoto University Hospital Department of Cardiovascular Medicine

075-751-4255

Outcome results

None listed

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