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Carl Erik Mogensen a Department of Medicine, M,
Kommunehospitalet, University Hospital, DK-8000 Aarhus C, Denmark, b Rødovre Centrum 294, DK-2610, Denmark, c Helsinki University Hospital,
Clinic of Internal Diseases, Helsinki, FIN-00029 HYKS, Finland, d Barzilai Medical Centre, Ashkelon, Israel, e 19 Oxford Terrace, Port
Lincoln, SA 5606, Australia, f Department of Medicine, University of Melbourne (Repatriation
Campus), W Heidelberg, Victoria 3084, Australia
Correspondence to: C E
Mogensen cem{at}afdm.au.dk
Objectives:
To assess and compare the effects of
candesartan or lisinopril, or both, on blood pressure and urinary
albumin excretion in patients with microalbuminuria, hypertension, and type 2 diabetes.
Design:
Prospective, randomised, parallel group,
double blind study with four week placebo run in period and 12 weeks' monotherapy with candesartan or lisinopril followed by 12 weeks' monotherapy or combination treatment.
Setting:
Tertiary hospitals and primary care centres in four countries (37 centres).
Participants:
199 patients aged 30-75 years.
Interventions:
Candesartan 16 mg once daily,
lisinopril 20 mg once daily.
Main outcome measures:
Blood pressure and urinary
albumin:creatinine ratio.
Results:
At 12 weeks mean (95% confidence interval) reductions in diastolic blood pressure were 9.5 mm Hg (7.7 mm Hg to
11.2 mm Hg, P<0.001) and 9.7 mm Hg (7.9 mm Hg to 11.5 mm Hg,
P<0.001), respectively, and in urinary albumin:creatinine ratio were
30% (15% to 42%, P<0.001) and 46% (35% to 56%, P<0.001) for
candesartan and lisinopril, respectively. At 24 weeks the mean
reduction in diastolic blood pressure with combination treatment (16.3 mm Hg, 13.6 mm Hg to 18.9 mm Hg, P<0.001) was significantly greater
than that with candesartan (10.4 mm Hg, 7.7 mm Hg to 13.1 mm Hg,
P<0.001) or lisinopril (mean 10.7 mm Hg, 8.0 mm Hg to 13.5 mm Hg,
P<0.001). Furthermore, the reduction in urinary albumin:creatinine ratio with combination treatment (50%, 36% to 61%, P<0.001) was greater than with candesartan (24%, 0% to 43%, P=0.05) and
lisinopril (39%, 20% to 54%, P<0.001). All treatments were
generally well tolerated.
Conclusion:
Candesartan 16 mg once daily is as
effective as lisinopril 20 mg once daily in reducing blood pressure and microalbuminuria in hypertensive patients with type 2 diabetes. Combination treatment is well tolerated and more effective in reducing
blood pressure.
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