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  • Title: Captopril versus perindopril: a double blind study in essential hypertension.
    Author: Lees KR, Reid JL, Scott MG, Hosie J, Herpin D, Santoni JP.
    Journal: J Hum Hypertens; 1989 Feb; 3(1):17-22. PubMed ID: 2657055.
    Abstract:
    This was a double blind, parallel group, multicentre comparison of the therapeutic efficacy and acceptability of perindopril and captopril in essential hypertension. After one month of placebo, 165 patients with supine diastolic blood pressure (DBP) between 95 and 125 mmHg were randomised to perindopril 4 mg once daily or captopril 25 mg twice daily orally. The perindopril group (n = 82) had significantly higher pretreatment DBP (105.4 +/- 0.8 mmHg vs 102.3 +/- 0.6 mmHg) but other demographic variables were similar. Assessment was monthly for three months: 'uncontrolled' patients (DBP greater than 90 mmHg) had the dose doubled and then hydrochlorothiazide added. Two of the six withdrawals were attributed to drug side effects and were in the captopril group. There was no significant difference in the number of withdrawals or incidence of side effects between the drugs. The final titrated treatments were similar and monotherapy normalised DBP in 49% of each group. The final 'control' rate was higher with perindopril than captopril: 75% vs 57%, P = 0.016. The overall fall in DBP was greater in the perindopril group: 26.5 +/- 1.9 mmHg vs 18.9 +/- 1.9 mmHg, P = 0.005. The doses of diuretic were similar in the two groups. The DBP of patients who received only monotherapy for three months also fell more in the perindopril group (-17.5 +/- 1.4 mmHg vs -13.9 +/- 1.0 mmHg, P less than 0.01). At the doses studied, perindopril was more effective than captopril in lowering DBP, either as monotherapy or in combination with a diuretic.(ABSTRACT TRUNCATED AT 250 WORDS)
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