The study had a 4 week single blind placebo period followed by 12 weeks of double blind treatment. Patients were randomized to one of four treatment arms to evaluate the antihypertensive efficacy of Losartan.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
428
losartan tablet (MK0954) 25 or 50 mg q.a.m. or 25 mg b.i.d., for 12 weeks
placebo to losartan tablet q.a.m. , for 12 weeks
Mean Change From Baseline in Trough Sitting Diastolic Blood Pressure (SiDBP) at Week 12
Mean change from baseline in trough (24 hours after the last morning dose and 12 hours after the last PM dose) SiDBP at Week 12
Time frame: At baseline, and at 12 weeks (24 hours after last morning dose and 12 hours after last PM dose)
Mean Change From Baseline in Trough Sitting Systolic Blood Pressure (SiSBP) as Week 12
Mean change from baseline in trough (24 hours after the last morning dose and 12 hours after the last PM dose) SiSBP at Week 12
Time frame: At baseline, and at 12 weeks (24 hours after last morning dose and 12 hours after last PM dose)
Mean Change From Baseline in Peak Sitting Diastolic Blood Pressure (SiDBP) at Week 12
Mean change from baseline in peak (6 hours after the last morning dose) SiDBP at Week 12
Time frame: At baseline and at 12 weeks (6 hours after last morning dose)
Categories of Antihypertensive Response in Trough Sitting Diastolic Blood Pressure (SiDBP) at Week 12
Patients with trough SiDBP \<90 mm Hg were in Category I, ≥90 but decreased at least 10 mm Hg were in Category II, and ≥90 and decreased less than 10 mm Hg or increased were in Category III.
Time frame: 24 hours after last morning dose and 12 hours after last PM dose at 12 weeks
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