Efficiency of perindopril arginine and indapamide retard in patients with nocturnal hypertension: The results of the study “Chronos”

Abstract

Objective. To assess the antihypertensive efficiency of perindopril arginine and indapamide retard in patients with nocturnal hypertension (HTN). Design and methods. In the regional program “Chronos” of the open, multicenter, observational, non-controlled study, we included 196 patients with nocturnal hypertension (2nd degree — 59,4%; 3rd degree — 40,6%). Upon inclusion, instead of the previous therapy the patients received 10 mg perindopril arginine at night and 1,5 mg indapamide retard in the morning. The follow-up was 3 months, the efficiency and tolerability were assessed in 2 weeks, 1 and 3 months of therapy. Blood pressure (BP) was measured by Korotkoff method. Statistical analysis was performed with the use of the programs Microsoft Excel 2012, Statsoft Statistica 10.0. Results. At baseline, daytime median systolic BP was 165,5 (160; 180) mmHg, diastolic BP was 100 (90; 100) mmHg. After 2 weeks of treatment by perindopril arginine and indapamide retard, both daytime and nocturnal BP decreased (p < 0,05). The positive changes maintained for the whole follow-up period. Seven patients did not achieve target BP 1 month later. In these cases, additional therapy (other drug class medications) was prescribed. Conclusion. All patients demonstrated both daytime and nighttime BP decrease. In 73% patients there was no morning BP rise anymore. In 60% BP was normalized in patients who had been considered resistant. The combination therapy was well-tolerated.