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. 2008 Oct 8;2008(4):CD003822. doi: 10.1002/14651858.CD003822.pub2

Feldman 1997.

Methods 2‐ to 4‐week washout; 10‐29 day single‐blind placebo run‐in; inclusion criteria= mean sitting DBP 95‐114 mm Hg after run‐in; 9‐week double‐blind treatment, patients received tasosartan 25 mg initially, this dose was titrated to 50 mg at end of week 3 and to 100 mg at end of week 6 until efficacy was achieved (defined as mean trough sitting DBP of 90 mm Hg or less or a change of 10 mm Hg or more from baseline) or the highest dose (100 mg) was reached in the absence of adverse events
Participants Tasosartan 25 mg: n=71(51 males, 20 females); mean age=53.5(8.8) years; baseline sitting SBP=154.1 mm Hg, DBP=101.2 mm Hg; 
 Placebo: n=71(55 males,16 females); mean age=50.9(10.5) years; baseline sitting SBP=151.5 mm Hg, DBP=101.6 mm Hg
Interventions Tasosartan 25 mg once daily; 
 Placebo; 
 taken at 8:30 AM (± 1 h)
Outcomes Mean change from baseline in trough sitting SBP/DBP
Notes Used week 3 BP data only; BP change reported; SD of change not reported; endpoint BP and SD not reported; baseline SBP/DBP SD not reported; imputed overall trial mean SD of change for SBP and DBP; BP data from Table 2, p. 296; BP measurement device not reported; WDAE reported at endpoint but not at week 3; Jadad score=3; funding source= not reported
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment? Unclear risk B ‐ Unclear