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  • Title: Efficacy and tolerability of fixed-dose combinations of telmisartan plus HCTZ compared with losartan plus HCTZ in patients with essential hypertension.
    Author: Lacourcière Y, Gil-Extremera B, Mueller O, Byrne M, Williams L.
    Journal: Int J Clin Pract; 2003 May; 57(4):273-9. PubMed ID: 12800457.
    Abstract:
    Telmisartan, an angiotensin II receptor blocker, is an effective once-daily antihypertensive agent available either alone or in fixed-dose combination with hydrochlorothiazide (HCTZ). This multicentre, prospective, randomised, open-label, blinded-endpoint (PROBE) study assessed the efficacy and safety of six weeks' treatment with telmisartan 40 mg/HCTZ 12.5 mg (n = 199) and telmisartan 80 mg/HCTZ 12.5 mg (n = 200) versus losartan 50 mg/HCTZ 12.5 mg (n = 198) in patients with mild to moderate essential hypertension. During the last six hours of the dosing interval, telmisartan 40 mg/HCTZ 12.5 mg and telmisartan 80 mg/HCTZ 12.5 mg reduced mean ambulatory diastolic blood pressure (DBP) to a greater extent than losartan 50 mg/HCTZ 12.5 mg (treatment differences 1.8 mmHg [p < 0.05] and 2.5 mmHg [p < 0.001], respectively). Telmisartan 80 mg/HCTZ 12.5 mg also lowered mean 24-hour DBP by 2.3 mmHg more than losartan 50 mg/HCTZ 12.5 mg (p < 0.001). Telmisartan 40 mg/HCTZ 12.5 mg and telmisartan 80 mg/HCTZ 12.5 mg produced greater reductions in ambulatory systolic blood pressure versus losartan 50 mg/HCTZ 12.5 mg of 2.5 mmHg and 3.4 mmHg, respectively, during the last six hours of the dosing interval (p < 0.05), and of 2.1 mmHg and 3.4 mmHg, respectively, over the entire 24-hour dosing interval (p < 0.05). All treatments were well tolerated.
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