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The effects of thiazide diuretics or calcium channel blockers on blood pressure and glycemic controls in hypertensive patients with type 2 diabetes

The effects of thiazide diuretics or calcium channel blockers on blood pressure and glycemic controls in hypertensive patients with type 2 diabetes - The losartan drug combination study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000017820
Enrollment
100
Registered
2015-06-05
Start date
2008-02-01
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

Type 2 diabetic hypertensive patients

Interventions

To switch to the losartan 50 mg/HCTZ 12.5 mg drug combination from single use of lsartan 50 mg To add the amlodipine 5 mg to basal use of Losartan 50 mg

Sponsors

Tokyo Women's Medical University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Inclusion criteria were (1) age > 20; (2) systolic blood pressure > 130 mmHg, or diastolic blood pressure > 80 mmHg; (3) patients who had already taken losartan for more than six months.

Exclusion criteria

Exclusion criteria: Exclusion criteria were (1) HbA1c > 8.0%; (2) the patients who had episodes of myocardial infarction or stroke within six months from the onset of this study; (3) heart failure; (4) past history of hyperuricemia, or uric acid level at baseline > 8.0 mg/dL; (5) kidney dysfunction (serum creatinine > 2.0 mg/dL); (6) secondary or malignant hypertension; or (7) kidney disease not caused by diabetic nephropathy.

Design outcomes

Primary

MeasureTime frame
Endpoints were blood pressure and glycemic control. We accessed the systolic and diastolic blood pressure level at two and four months. To evaluate glycemic control the HbA1c, fasting plasma glucose, and serum IRI values at two and four months.

Countries

Japan

Contacts

Public ContactTetsuya Babazono

Tokyo Women's Medical University School of Medicine Diabetes Center

babazono@dmc.twmu.ac.jp03-3353-8111

Outcome results

None listed

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