A Study of the Blood Pressure Lowering Ability and Safety of Olmesartan Medoxomil in Stage I and Stage II Hypertension
Condition: Hypertension
MeSH terms: Hypertension
Intervention: olmesartan medoxomil + hydrochlorothiazide, if necessary; Placebo
Intervention description: olmesartan medoxomil + hydrochlorothiazide, if necessary. Oral tablets administered for once daily for 12 weeks; Oral tablets administered for once daily for 12 weeks
Intervention MeSH terms: Hydrochlorothiazide; Olmesartan; Olmesartan Medoxomil
Phase: Phase 4
Study type: Interventional
Primary purpose: Treatment
Allocation: Randomized
Intervention model: Parallel Assignment
Masking: Double (Participant, Investigator)
Enrollment: 278.0
Sex: All
Minimum age: 18 Years
Healthy volunteers: No
Keywords: Hypertension; Angiotensin Receptor Blocker; Calcium Channel Blocker; Angiotensin Converting Enzyme Inhibitor; Hydrochlorothiazide; Stage I and II Hypertension

Summary:

      This 16 week study will examine the ability of olmesartan medoxomil to lower the blood
      pressure of patients with moderate to severe high blood pressure in comparison to placebo.
      The medication being tested has been approved by the FDA for the treatment of high blood
      pressure.
    

Eligibility criteria:

        Inclusion Criteria:

          -  Greater than or equal to 18 years of age.

          -  Patients with a mean seated systolic blood pressure (MSSBP) greater than or equal to
             140 mmHg but less than or equal to 179 mmHg and a mean seated diastolic blood pressure
             (MSDBP) less than or equal to 109 mmHg following a 3 to 4-week single-blind placebo
             run-in period.

          -  The difference in MSSBP between Visits 3 and 4 or between Visits 4 and 4X must be less
             than or equal to 10 mmHg.

          -  Patients with a mean daytime (8AM-4PM) systolic blood pressure (SBP) greater than or
             equal to 135 mmHg and less than or equal to 179 mmHg and a mean daytime diastolic
             blood pressure (DBP) less than or equal to 109 mmHg as measured by an ambulatory blood
             pressure monitoring device (ABPM) following placebo run-in period.

          -  If female, must have negative serum pregnancy test at screening and be either
             post-menopausal (greater than or equal to 1 year), had a hysterectomy or tubal
             ligation at least 6 months before consent or if of childbearing potential, must
             practice approved measures of birth control throughout study.

        Exclusion Criteria:

          -  History of stroke or transient ischemic attack (TIA) within the last one year.

          -  History of myocardial infarction, coronary angioplasty, coronary artery bypass graft,
             or heart failure within the past 6 months.

          -  Patients with secondary hypertension of any etiology, such as renal disease,
             pheochromocytoma, or Cushing's syndrome.

          -  Type I diabetes. Patients with Type II diabetes on stable treatment, with fasting
             glucose <160 mg/dl may enroll.

          -  Patients with hemodynamically significant cardiac valvular disease.

          -  Patients with clinically significant cardiac conduction defects, including first,
             second or third degree AV block, left bundle branch block, sick sinus syndrome, atrial
             fibrillation, atrial flutter, an accessory bypass tract, or any arrhythmia requiring
             medication.