A randomized controlled crossover trial evaluating differential responses to antihypertensive drugs (used as mono- or dual therapy) on the basis of ethnicity: The comparIsoN oF Optimal Hypertension RegiMens; part of the Ancestry Informative Markers in HYpertension program—AIM-HY INFORM trial
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Background Ethnicity, along with a variety of genetic and environmental factors, is thought to influence the efficacy of antihypertensive therapies. Current UK guidelines use a “black versus white” approach; in doing so, they ignore the United Kingdom's largest ethnic minority: Asians from South Asia. Study design The primary purpose of the AIM-HY INFORM trial is to identify potential differences in response to antihypertensive drugs used as mono- or dual therapy on the basis of self-defined ethnicity. A multicenter, prospective, open-label, randomized study with 2 parallel, independent trial arms (mono- and dual therapy), AIM-HY INFORM plans to enroll a total of 1,320 patients from across the United Kingdom. Those receiving monotherapy (n = 660) will enter a 3-treatment (amlodipine 10 mg od; lisinopril 20 mg od; chlorthalidone 25 mg od), 3-period crossover, lasting 24 weeks, whereas those receiving dual therapy (n = 660) will enter a 4-treatment (amlodipine 5 mg od and lisinopril 20 mg od; amlodipine 5 mg od and chlorthalidone 25 mg od; lisinopril 20 mg od and chlorthalidone 25 mg od; amiloride 10 mg od and chlorthalidone 25 mg od), 4-period crossover, lasting 32 weeks. Equal numbers of 3 ethnic groups (white, black/black British, and Asian/Asian British) will ultimately be recruited to each of the trial arms (ie, 220 participants per ethnic group per arm). Seated, automated, unattended, office, systolic blood pressure measured 8 weeks after each treatment period begins will serve as the primary outcome measure. Conclusion AIM-HY INFORM is a prospective, open-label, randomized trial which aims to evaluate first- and second-line antihypertensive therapies for multiethnic populations.
American Heart Journal;
Mukhtar, O., Cheriyan, J., Cockcroft, J.R., Collier, D., Coulson, J.M., Dasgupta, I., Faconti, L., Glover, M., Heagerty, A.M., Khong, T.K., Lip, G.Y., Mander, A.P., Marchong, M.N., Martin, U., McDonnell, B. et al (2018) 'A randomized controlled crossover trial evaluating differential responses to antihypertensive drugs (used as mono-or dual therapy) on the basis of ethnicity: The comparIson of Optimal Hypertension Regimens; part of the Ancestry Informative Markers in Hypertension program—AIM-HY INFORM trial', American Heart Journal, 204, pp.102-108.
Article published in American Heart Journal, available open access at https://doi.org/10.1016/j.ahj.2018.05.006
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
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