Beneficial Effects of a Perindopril/Indapamide Single-Pill Combination in Hypertensive Patients with Diabetes and/or Obesity or Metabolic Syndrome: A Post Hoc Pooled Analysis of Four Observational Studies

Introduction: To assess real-life effectiveness of a perindopril/indapamide (Per/Ind) single-pill combination (SPC) in patients with hypertension (HT) and type 2 diabetes mellitus (T2DM), obesity and/or metabolic syndrome (MetS).

Methods: This post hoc analysis pooled raw data from four large observational studies (FORTISSIMO, FORSAGE, ACES, PICASSO). Patients, most with uncontrolled blood pressure (BP) on previous treatments were switched to Per/Ind (10 mg/2.5 mg) SPC at study entry. Office systolic and diastolic blood pressures (SBP and DBP) were measured at baseline, 1 month and 3 months.

Results: In the overall pooled population (N = 16,763), mean age was 61 ± 12 years, HT duration 11 ± 8 years, and baseline SBP/DBP 162/94 mmHg. T2DM, obesity and MetS were present in 21%, 49% and 27% of patients, respectively. Subgroups had similar mean age and HT duration to the overall population; patients with T2DM were slightly older (64 ± 10 years) with a longer HT duration (13 ± 8 years). Mean BP was approximately 160/95 mmHg in each subgroup. At 1 month, mean SBP decreased by approximately 20 mmHg in the overall population, and by a further 10 mmHg at 3 months. Similar results were observed in the three subgroups, with mean changes from baseline at 3 months of - 28 ± 15/- 13 ± 10 in T2DM; - 30 ± 15/- 14 ± 10 in obesity; and - 31 ± 15/- 15 ± 9 mmHg in MetS. BP decreases were greatest in patients with grade II or grade III HT. BP control rates (< 140/90 mmHg or 140/85 mmHg for T2DM) at 3 months were 59% in T2DM, 67% in obese, and 66% in MetS. No specific safety concerns were raised, particularly concerning ionic (Na, K) or metabolic profiles.

Conclusions: Switching to Per/Ind SPC led to rapid and effective BP decreases in patients with T2DM, obesity, or MetS. BP control was achieved in 6-7 out of 10 previously treated but uncontrolled patients. Treatment was well tolerated. The results confirm the beneficial effects of a Per/Ind SPC for difficult-to-control patient populations.