Aim. To analyze the efficacy and tolerability of amlodipine/indapamide/perindopril arginine (Triplixam) in a subgroup of 790 people participating in the Russian observational program DOKAZATEL`STVO without use of other antihypertensive agents.Material and methods. The analysis included 790 patients with hypertension (HTN) (men — 37,9%, mean age — 60,0±10,2 years). The drug was administrated in one of 4 recommended dosages for 3 months. We assessed the dynamics of office and home blood pressure (BP) from visit 1 to visit 4 and the frequency of achieving the target BP <140/90 mm Hg in 3 months.Results. After 3 months, office systolic BP (SBP) decreased from 163,4±14,0 to 127,2±7,8 mm Hg, diastolic BP (DBP) — from 95,7±9,5 to 78,3±6,2 mm Hg (p 0,001). Home SBP in the morning decreased from 145,9±12,3 to 128,3±7,8 mm Hg, DBP — from 86,2±7,7 to 78,4±5,6 mm Hg (p<0,001). After 3 months, target office BP (<140/90 mm Hg) was achieved in 88,4% of subjects, home BP (<135/85 mm Hg) — 73%.Conclusion. The administration of Triplixam without additional antihypertensive agents results in a significant BP decrease by 36/17 mm Hg and rapid achievement of BP control in most patients. The combination is safe and well tolerated.