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  • Title: Benazepril at incremental doses in essential hypertension.
    Author: Fogari R, Tettamanti F, Poletti L, Malamani G, Sardina M, Savonitto S.
    Journal: Int J Clin Pharmacol Ther Toxicol; 1990 Feb; 28(2):63-6. PubMed ID: 2407670.
    Abstract:
    The antihypertensive effect of the new non-sulphydryl ACE-inhibitor benzepril was studied in 30 patients (16 men, 14 women; mean age 50 +/- 7 years) with essential hypertension at WHO stage I or II. After a 2-week placebo treatment, patients with lying diastolic blood pressure (DBP) greater than or equal to 95 mmHg were given benzepril 10 mg once daily for 2 weeks. At the end of this period, patients with lying DBP less than 95 mmHg continued with the same dosage, while those with lying DBP greater than or equal to 95 mmHg were blindly up-titrated to benazepril 20 mg once daily. In both cases treatment was continued for further 4 weeks. BP was measured every two weeks 24-26 h after last drug administration. After the run-in period, mean group lying BP was 160/104 +/- 8/5 mmHg. Benazepril significantly reduced systolic blood pressure (SBP) and DBP, both supine and standing (p less than 0.01), while heart rate (HR) did not change. After the first 2 weeks, 13 patients (43%) had lying DBP less than 95 mmHg ("fast responders"), while 17 patients (57%) had DBP greater than or equal to 95 mmHg. By increasing the dosage to 20 mg, a further 5 patients became responder and mean group blood pressure in patients up-titrated with benazepril dropped significantly (-16/-10 mmHg from baseline; p less than 0.01, "slow responders"). Fast responders were younger (47 +/- 5 vs 54 +/- 8 years), had lower baseline BP (160/99 +/- 4/3 vs 173/107 +/- 7/3) and had shorter duration of hypertension (20 +/- 14 vs 61 +/- 27 months) than "slow responders".(ABSTRACT TRUNCATED AT 250 WORDS)
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