A Study on Ca Blocker Versus AII Antagonists in Hypertension With Type 2 Diabetes

Inclusion Criteria

• •Patients with type 2 diabetes mellitus.
• •Patients who have been treated by the single use of AII antagonist at usual for at least 8 weeks or patients who have been treated by the combined use of AII antagonist at usual doses and calcium channel blocker or a antihypertensive drug other than ACE inhibitors for at least 8 weeks.
• •Patients who show a systolic blood pressure (blood pressure) \> 135 mm Hg or a diastolic blood pressure \> 85 mm Hg, which is measured (in a sitting position) on an outpatient basis at the time of start of the observation period, and show the mean (blood pressure level measured at home after getting up before the start of study) of systolic blood pressure \> 130 mm Hg or diastolic blood pressure \> 80 mm Hg measured at home after getting up for last 5 days during the last 2-week observation period.
• •Patients whose consent is obtained at age 20 years or over.
• •Patients whose consent is obtained from themselves in written form. With regard to 2) and 3), however, the case, in which the mean of the systolic blood pressure levels measured at home after getting up for last 5 days during the first 1-week observation period is \> 180 mm Hg or the mean diastolic blood pressure level is \> 110 mm Hg, is included in the present study.