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  • Title: Perindopril plus nifedipine versus perindopril plus hydrochlorothiazide in mild to severe hypertension: a double-blind multicentre study. The Multicentre Study Group on Treatment Association with Perindopril.
    Author: Letellier P, Overlack A, Agnes E, Desche P.
    Journal: J Hum Hypertens; 1994 Feb; 8(2):145-9. PubMed ID: 8207741.
    Abstract:
    Thiazide diuretics are considered as the choice drug to combine with ACE inhibitors for the treatment of hypertension. However, there is much evidence showing that the combination of ACE inhibitors with a calcium channel blocker is effective and safe. We compared the safety and efficacy of perindopril 8 mg once daily plus nifedipine SR 10 mg twice daily with perindopril 8 mg once daily plus hydrochlorothiazide (HCTZ) 12.5 mg once daily in a two phase three month study. After a one month placebo run-in period, patients whose DBP averaged 95-125 mmHg received perindopril 4 mg once daily for the first open phase (n = 524). After one month those whose DBP remained > 90 mmHg were prescribed perindopril 8 mg once daily for a second month. Among them, those whose DBP were still > 90 mmHg entered the second phase for one month, in a double-blind fashion. Fifty-three patients received HCTZ (BP: 161.2/99.2 +/- 2.0/0.9 mmHg), 57 received nifedipine (BP: 161.4/98.7 +/- 2.2/0.7 mmHg). Five patients withdrew due to side-effects, three patients in the perindopril plus nifedipine group and two in the perindopril plus HCTZ group. After one month there was a significant drop in BP (P < 0.01) in both groups: perindopril plus HCTZ (-13.9/-11.9 mmHg) and perindopril plus nifedipine (-12.1/-10.8 mmHg). Heart rate was not significantly modified: perindopril plus HCTZ (-1.30 beats/min), perindopril plus nifedipine (+0.54 beats/min). There were no significant difference between the two combinations for BP reduction and heart rate. The incidence of adverse experiences was similar in both groups.(ABSTRACT TRUNCATED AT 250 WORDS)
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