Diuretics and Angiotensin-Receptor Blocker Agents in Patients With Stage I Hypertension

Summary

High blood pressure is the major risk factor for Cardiovascular disease (CVD). The prevalence of hypertension in Brazil was established in population-based studies conducted in different cities and States, varying from 22.3 to 44% of adults. The benefit of drug treatment of hypertension to prevent major cardiovascular events was consistently demonstrated in a large series of clinical trials controlled by placebo. Diuretics are at least as efficacious as other blood pressure-lowering drugs, are well tolerated, have longer duration of action and the advantage of very low cost to be used in a population intervention. Chlorthalidone is the more efficacious agent. Its main limitation is to induce hypokalemia in a proportion of patients, an adverse effect that can be antagonized by a potassium-sparing diuretic, as amiloride. A study comparing diuretic with an ARB agent is therefore recommendable in Brazil, in order to support the decisions of the Health Secretary in regard to blood pressure agents supply for the Brazilian population. Such a study was demanded and funded by the Health and Technology Ministries in Brazil.

Timeline

Start

2010-07

Primary completion

2014-09

Completion

2014-09

Publications

• Background Fuchs FD, Fuchs SC, Moreira LB, Gus M, Nobrega AC, Poli-de-Figueiredo CE, Mion D, Bortolotto L, Consolim-Colombo F, Nobre F, Coelho EB, Vilela-Martin JF, Moreno H Jr, Cesarino EJ, Franco R, Brandao AA, de Sousa MR, Ribeiro AL, Jardim PC, Afiune Neto A, Scala LC, Mota M, Chaves H, Alves JG, Sobral Filho DC, Pereira e Silva R, Figueiredo Neto JA, Irigoyen MC, Castro I, Steffens AA, Schlatter R, de Mello RB, Mosele F, Ghizzoni F, Berwanger O. A comparison between diuretics and angiotensin-receptor blocker agents in patients with stage I hypertension (PREVER-treatment trial): study protocol for a randomized double-blind controlled trial. Trials. 2011 Feb 24;12:53. doi: 10.1186/1745-6215-12-53.
• Fuchs FD, Scala LCN, Vilela-Martin JF, Whelton PK, Poli-de-Figueiredo CE, Pereira E Silva R, Gus M, Bortolotto LA, Consolim-Colombo FM, Schlatter RP, Cesarino JE, Castro I, Figueiredo Neto JA, Chaves H, Steffens AA, Alves JG, Brandao AA, de Sousa MR, Jardim PC, Moreira LB, Franco RS, Gomes MM, Afiune Neto A, Fuchs FC, Sobral Filho DC, Nobrega AC, Nobre F, Berwanger O, Fuchs SC. Effectiveness of chlorthalidone/amiloride versus losartan in patients with stage I hypertension and diabetes mellitus: results from the PREVER-treatment randomized controlled trial. Acta Diabetol. 2021 Feb;58(2):215-220. doi: 10.1007/s00592-020-01611-8. Epub 2020 Oct 13.
• Fuchs FD, Scala LC, Vilela-Martin JF, de Mello RB, Mosele F, Whelton PK, Poli-de-Figueiredo CE, de Alencastro PR, E Silva RP, Gus M, Bortolotto LA, Schlatter R, Cesarino EJ, Castro I, Neto JA, Chaves H, Steffens AA, Alves JG, Brandao AA, de Sousa MR, Jardim PC, Moreira LB, Franco RS, Gomes MM, Neto AA, Fuchs FC, Filho DC, Nobrega AC, Nobre F, Berwanger O, Fuchs SC. Effectiveness of chlorthalidone/amiloride versus losartan in patients with stage I hypertension: results from the PREVER-treatment randomized trial. J Hypertens. 2016 Apr;34(4):798-806. doi: 10.1097/HJH.0000000000000837.

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Indications