Japan Morning Surge -1 study

Japan Morning Surge -1 study - JMS1 study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-C000000309

Enrollment

600

Registered

2006-01-20

Start date

2003-08-01

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

Hypertensive outpatiens

Interventions

Doxazosin Doxazosin, beta blocker

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1.Hypertensive outpatients with uncontrolled morning systolic BP (>135 mmHg) and antihypertensive medication status for 3 months.

Exclusion criteria

Exclusion criteria: 1. History of heart failure 2. Orthostatic hypotension 3. Dementia 4. Malignancy 5. Chronic inflammatory disease 6. Users of alfa blocker or beta blocker. 7. Atrial fibrillation. 8. Judged inappropriate for this study by the physicians

Design outcomes

Primary

Measure	Time frame
Brain natriuretic peptide (BNP) Urinary albumin excretion /creatinine ratio (UAR)	—

Countries

Japan

Outcome results

None listed

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