To clarify the role of gene polymorphisms on the effect of losartan and losartan plus hydrochlorothiazide on blood pressure (primary end point) and on cardiac, vascular and metabolic phenotypes (secondary end point) after 4, 8, 12, 16 and 48 weeks treatment, an Italian collaborative study - The Study of the Pharmacogenomics in Italian hypertensive patients treated with the Angiotensin receptor blocker losartan (SOPHIA) - on never-treated essential hypertensives (n = 800) was planned. After an 8 week run-in, losartan 50 mg once daily will be given and doubled to 100 mg at week +4 if blood pressure is more than 140/90 mmHg. Hydroclorothiazide 25 mg once daily at week +8 and amlodipine 5 mg at week +16 will be added if blood pressure is more than 140/90 mmHg. Cardiac mass (echocardiography), carotid intima-media thickness, 24 h ambulatory blood pressure, homeostatic model assessment (HOMA) index, microalbuminuria, plasma renin activity and aldosterone, endogenous lithium clearance, brain natriuretic peptide and losartan metabolites will be evaluated. Genes of the renin-angiotensin-aldosterone system, salt sensitivity, the beta-adrenergic system and losartan metabolism will be studied (Illumina custom arrays). A whole-genome scan will also be performed in half of the study cohort (1M array, Illumina 500 GX beadstation).

Conceptual basis and methodology of the SOPHIA study / N. Glorioso, G. Argiolas, F. Filigheddu, C. Troffa, F. Cocco, E. Bulla, P. Bulla, R. Zaninello, S. Degortes, S. Pitzoi, F. Frau, S. Fadda, P. Pinna Parpaglia, G. Bernini, M. Bardini, F. Fallo, L. Malatino, G. Regolisti, C. Ferri, D. Cusi, A. Sciacqua, F. Perticone, E. Degli Esposti, C. Baraccani, G. Parati, F. Veglio, P. Mulatero, T.A. Williams, F. Macciardi, B. Stancanelli. - In: PHARMACOGENOMICS. - ISSN 1462-2416. - 8:11(2007 Nov), pp. 1497-1509.

Conceptual basis and methodology of the SOPHIA study

D. Cusi;F. Macciardi
Penultimo
;
2007

Abstract

To clarify the role of gene polymorphisms on the effect of losartan and losartan plus hydrochlorothiazide on blood pressure (primary end point) and on cardiac, vascular and metabolic phenotypes (secondary end point) after 4, 8, 12, 16 and 48 weeks treatment, an Italian collaborative study - The Study of the Pharmacogenomics in Italian hypertensive patients treated with the Angiotensin receptor blocker losartan (SOPHIA) - on never-treated essential hypertensives (n = 800) was planned. After an 8 week run-in, losartan 50 mg once daily will be given and doubled to 100 mg at week +4 if blood pressure is more than 140/90 mmHg. Hydroclorothiazide 25 mg once daily at week +8 and amlodipine 5 mg at week +16 will be added if blood pressure is more than 140/90 mmHg. Cardiac mass (echocardiography), carotid intima-media thickness, 24 h ambulatory blood pressure, homeostatic model assessment (HOMA) index, microalbuminuria, plasma renin activity and aldosterone, endogenous lithium clearance, brain natriuretic peptide and losartan metabolites will be evaluated. Genes of the renin-angiotensin-aldosterone system, salt sensitivity, the beta-adrenergic system and losartan metabolism will be studied (Illumina custom arrays). A whole-genome scan will also be performed in half of the study cohort (1M array, Illumina 500 GX beadstation).
Drug therapy; Gene polymorphisms; High blood pressure; Pharmacogenomics; Renin angiotensin system; Whole-genome scan
Settore MED/14 - Nefrologia
Settore MED/03 - Genetica Medica
nov-2007
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/41558
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