Successful perindopril/amlodipine+indapamide treatment as second line in uncontrolled hypertensive patients in line with european guidelines

Funding Acknowledgements

Type of funding sources: Private company. Main funding source(s): The study was sponsored by Servier.

Background

ESC/ESH guidelines recommend use of a RAAS inhibitor + CCB + Thiazide as second step treatment for hypertensive patients with uncontrolled blood pressure (BP), preferably as single-pill combination.

Purpose

We investigated the results of adding indapamide SR 1.5 mg to the single-pill combination of perindopril/amlodipine (Per/Aml) in a context of a randomized double-blind controlled trial.

Method

The study compared 2 treatment strategies over 6 months: initiation with Per/Aml with further conditional uptitration up to Per/Amlo 14/10 mg, followed after 3 months of bi-therapy by addition of indapamide SR 1.5 mg for 3 additional months, versus initiation with Valsartan (Val) and further addition of amlodipine, then uptitration up to Val/Amlo 160/10 mg. The study was completed by an additional 8-month extension period (M14) at the same dose for the patients controlled at M6, for safety purposes.

Results

Compared with initiation of Val alone, initiation of treatment with Per/Amlo led to lower number of patients needing further uptitration at M3 (23% vs 31%). In 202 patients uncontrolled with Per/Amlo 14/10, the addition of indapamide SR 1.5 mg led to a large additional decrease in systolic BP (-14.8±13.3 mmHg) and diastolic BP (-7.2±9.7 mmHg) with BP control achieved in 82.5% of the patients (<140/90 mmHg) and BP response in 94%. During the whole period (11 months), 5.9% of the patients (n=10) discontinued the triple therapy due to 11 adverse reactions, versus 3.9% of those receiving Per/Amlo 14/10 over the same period.

Conclusion

These findings confirm the BP-lowering efficacy and safety of adding the thiazide-like indapamide to a previous ACE inhibitor+CCB (Per/Amlo) combination providing clinical evidence for this triple therapy, preferably to be given as single-pill combination.

Antihypertensive efficacy and tolerability of low-dose perindopril/indapamide combination compared with losartan in the treatment of essential hypertension

The aim of the study was to evaluate the antihypertensive efficacy and tolerability of the low-dose combination of the angiotensin-converting enzyme inhibitor perindopril 2 mg plus the diuretic indapamide 0.625 mg (P/I) compared with the angiotensin II antagonist losartan 50 mg (L50) in the treatment of essential hypertension. Patients (n = 277) were randomised, double-blind and allocated to receive either P/I or L50 once daily for a period of 12 weeks. Responder and normalisation rates in the two groups were compared by a chi 2 test. Ambulatory blood pressure monitoring results were compared using the one-tailed Student's t-test. Normalisation rates were significantly greater in the P/I group (76.0%) than in the L50 group (60.0%) (p = 0.009). Responder rates were significantly higher in the P/I group (91.7%) than in the L50 group (81.8%) (p = 0.025). The average blood pressure reductions were: in sSBP (P/I-L50 = -2.4 mmHg; CI: 6.2; 1.3) and sDBP (P/I-L50 = -2.0 mmHg; CI: -4.2; 0.2). The average night-time SBP decrease (ABPM) was significantly greater in the P/I group (p = 0.041). The tolerability was comparable between the two groups in terms of emergent adverse events related to treatment (12.4% for P/I patients and 8.4% for L50 patients). Laboratory evaluations did not show any significant variations. It was concluded the low-dose P/I combination had significantly higher responder and normalisation rates than L50. This study also confirmed the good tolerability of both treatments.