Add-on aliskiren treatment can decrease blood pressure but requires attention to risks of renal impairment and hyperkalemia Chikushi Anti-Hypertension Trial-Rasilez® (CHAT-Ras)

Background Renin is the starting point of the renin angiotensin (RA) system cycle. Aliskiren (AL), which is a direct renin inhibitor, suppressed the entire RA cycle. In the present study, the efficacy of add-on of AL treatment in patients with essential hypertension (HT) was investigated. Methods Th...

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Main Authors: Keisuke Okamura, Yosuke Takamiya, Ken Mori, Kazuyuki Shirai, Hidenori Urata
Format: Article
Language:English
Published: Taylor & Francis Group 2020-08-01
Series:Clinical and Experimental Hypertension
Subjects:
Online Access:http://dx.doi.org/10.1080/10641963.2020.1723618
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author Keisuke Okamura
Yosuke Takamiya
Ken Mori
Kazuyuki Shirai
Hidenori Urata
author_facet Keisuke Okamura
Yosuke Takamiya
Ken Mori
Kazuyuki Shirai
Hidenori Urata
author_sort Keisuke Okamura
collection DOAJ
description Background Renin is the starting point of the renin angiotensin (RA) system cycle. Aliskiren (AL), which is a direct renin inhibitor, suppressed the entire RA cycle. In the present study, the efficacy of add-on of AL treatment in patients with essential hypertension (HT) was investigated. Methods This study was a multi-center, open-label, prospective, observational study. Study subjects were patients with essential HT and poor blood pressure (BP) control, who had received calcium channel blocker monotherapy or angiotensin II receptor blocker monotherapy or had not received any BP lowering drugs. Following add-on of AL for 12 months, BP and additional laboratory findings were analyzed. Results A total of 150 subjects were enrolled. There were 50 dropout subjects including discontinuation. Dropouts were the highest in the ARB combination therapy group at 9 subjects due to adverse events, and 3 of them were due to hyperkalemia. A significantly higher number of patients with chronic kidney disease (CKD) dropped out compared to patients without CKD (φ = 0.166, p < .05). BP before add-on of AL was 155/88 mmHg. After add-on of AL, BP was significantly improved and this lowering was sustained for 3 months (136/78 mmHg, p < .001), 6 months (136/77 mmHg, p < .001) and 12 months (134/78 mmHg, p < .001). In contrast, add-on of AL increased the potassium level and decreased the estimated glomerular filtration rate. Conclusion While add-on AL treatment achieved a favorable and sustained decrease of BP in this study, caution is necessary with regard to elevation of potassium levels and renal impairment.
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spelling doaj.art-dd08cac8df8446c59f67aad6834f8d932023-09-19T15:19:29ZengTaylor & Francis GroupClinical and Experimental Hypertension1064-19631525-60062020-08-0142654555210.1080/10641963.2020.17236181723618Add-on aliskiren treatment can decrease blood pressure but requires attention to risks of renal impairment and hyperkalemia Chikushi Anti-Hypertension Trial-Rasilez® (CHAT-Ras)Keisuke Okamura0Yosuke Takamiya1Ken Mori2Kazuyuki Shirai3Hidenori Urata4Fukuoka University Chikushi HospitalFukuoka University Chikushi HospitalFukuoka University Chikushi HospitalFukuoka University Chikushi HospitalFukuoka University Chikushi HospitalBackground Renin is the starting point of the renin angiotensin (RA) system cycle. Aliskiren (AL), which is a direct renin inhibitor, suppressed the entire RA cycle. In the present study, the efficacy of add-on of AL treatment in patients with essential hypertension (HT) was investigated. Methods This study was a multi-center, open-label, prospective, observational study. Study subjects were patients with essential HT and poor blood pressure (BP) control, who had received calcium channel blocker monotherapy or angiotensin II receptor blocker monotherapy or had not received any BP lowering drugs. Following add-on of AL for 12 months, BP and additional laboratory findings were analyzed. Results A total of 150 subjects were enrolled. There were 50 dropout subjects including discontinuation. Dropouts were the highest in the ARB combination therapy group at 9 subjects due to adverse events, and 3 of them were due to hyperkalemia. A significantly higher number of patients with chronic kidney disease (CKD) dropped out compared to patients without CKD (φ = 0.166, p < .05). BP before add-on of AL was 155/88 mmHg. After add-on of AL, BP was significantly improved and this lowering was sustained for 3 months (136/78 mmHg, p < .001), 6 months (136/77 mmHg, p < .001) and 12 months (134/78 mmHg, p < .001). In contrast, add-on of AL increased the potassium level and decreased the estimated glomerular filtration rate. Conclusion While add-on AL treatment achieved a favorable and sustained decrease of BP in this study, caution is necessary with regard to elevation of potassium levels and renal impairment.http://dx.doi.org/10.1080/10641963.2020.1723618aliskirenrenin angiotensin systemdirect renin inhibitorhypertensionpractitionermulti-center prospective study
spellingShingle Keisuke Okamura
Yosuke Takamiya
Ken Mori
Kazuyuki Shirai
Hidenori Urata
Add-on aliskiren treatment can decrease blood pressure but requires attention to risks of renal impairment and hyperkalemia Chikushi Anti-Hypertension Trial-Rasilez® (CHAT-Ras)
Clinical and Experimental Hypertension
aliskiren
renin angiotensin system
direct renin inhibitor
hypertension
practitioner
multi-center prospective study
title Add-on aliskiren treatment can decrease blood pressure but requires attention to risks of renal impairment and hyperkalemia Chikushi Anti-Hypertension Trial-Rasilez® (CHAT-Ras)
title_full Add-on aliskiren treatment can decrease blood pressure but requires attention to risks of renal impairment and hyperkalemia Chikushi Anti-Hypertension Trial-Rasilez® (CHAT-Ras)
title_fullStr Add-on aliskiren treatment can decrease blood pressure but requires attention to risks of renal impairment and hyperkalemia Chikushi Anti-Hypertension Trial-Rasilez® (CHAT-Ras)
title_full_unstemmed Add-on aliskiren treatment can decrease blood pressure but requires attention to risks of renal impairment and hyperkalemia Chikushi Anti-Hypertension Trial-Rasilez® (CHAT-Ras)
title_short Add-on aliskiren treatment can decrease blood pressure but requires attention to risks of renal impairment and hyperkalemia Chikushi Anti-Hypertension Trial-Rasilez® (CHAT-Ras)
title_sort add on aliskiren treatment can decrease blood pressure but requires attention to risks of renal impairment and hyperkalemia chikushi anti hypertension trial rasilez r chat ras
topic aliskiren
renin angiotensin system
direct renin inhibitor
hypertension
practitioner
multi-center prospective study
url http://dx.doi.org/10.1080/10641963.2020.1723618
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