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Comparison of Fixed-dose Combinations of Amlodipine/Losartan Potassium/Chlorthalidone and Amlodipine/Losartan Potassium in Patients With Stage 2 Hypertension Inadequately Controlled With Amlodipine/Losartan Potassium: A Randomized, Double-blind, Multicenter, Phase III Study

Authors
 Soon Jun Hong  ;  Han Saem Jeong  ;  Seung Hwan Han  ;  Ki Yuk Chang  ;  Bum Kee Hong  ;  Bong Ki Lee  ;  Shung Chull Chae  ;  Woo Shik Kim  ;  Chang Gyu Park  ;  Jung Ho Heo  ;  Seung Uk Lee  ;  Young Dae Kim  ;  Kee Sik Kim  ;  Jung Hyun Choi  ;  Hyun Jae Kang  ;  Jae Joong Kim  ;  Seok Min Kang  ;  Young Jin Choi  ;  Joon Han Shin  ;  Kook Jin Chun  ;  Dong Gu Shin  ;  Seong Hoon Park  ;  Jun Kwan  ;  Yu Jeong Choi  ;  Myung Ho Jeong  ;  Jei Keon Chae  ;  Dong Woon Kim  ;  Jung Rae Cho  ;  Kyoo Rok Han  ;  Kyung Heon Won  ;  Sang Ho Park  ;  Sang Kon Lee  ;  Sang Hoon Kim  ;  Jina Jung  ;  Cheol Ho Kim 
Citation
 CLINICAL THERAPEUTICS, Vol.39(10) : 2049-2060, 2017 
Journal Title
 CLINICAL THERAPEUTICS 
ISSN
 0149-2918 
Issue Date
2017
MeSH
Adult ; Aged ; Aged, 80 and over ; Amlodipine / administration & dosage* ; Amlodipine / therapeutic use ; Antihypertensive Agents / administration & dosage* ; Antihypertensive Agents / therapeutic use ; Blood Pressure / drug effects ; Chlorthalidone / administration & dosage* ; Chlorthalidone / therapeutic use ; Double-Blind Method ; Drug Combinations ; Female ; Humans ; Hypertension / drug therapy* ; Hypertension / physiopathology ; Losartan / administration & dosage* ; Losartan / therapeutic use ; Male ; Middle Aged ; Treatment Outcome ; Young Adult
Keywords
amlodipine ; chlorthalidone ; hypertension ; losartan ; single-pill combination
Abstract
Purpose: The goal of this study was to compare the efficacy and safety of fixed-dose combinations of amlodipine/losartan potassium/chlorthalidone (A/L/C) and A/L in Korean patients with stage 2 hypertension inadequately controlled by A/L. Methods: This study was an 8-week, randomized double-blind, multicenter, phase III clinical trial. Three hundred forty volunteer patients with stage 2 hypertension were randomized to receive A/L/C or A/L. The primary end point was a change in sitting systolic blood pressure (SitSBP) after 8 weeks of treatment. As secondary end points, the change in SitSBP after 2 weeks of treatment and the change in sitting diastolic blood pressure (SitDBP) were compared between treatment groups. All patients were assessed for adverse events, clinical laboratory data, and vital signs. Findings: Of 330 patients from 33 medical centers, 328 patients who had available efficacy data were analyzed. After 8 weeks of double-blind treatment, the mean (SD) changes in SitSBP at 8 weeks were -16.4 (0.9) mm Hg and -6.9 (1.0) mm Hg in the A/L/C and A/L groups, respectively. A/L/C had a statistically superior blood pressure-lowering effect compared with that of A/L (mean [SD] difference, 9.5 [1.3] mm Hg; P < 0.001). The mean (SD) change in SitDBP at 8 weeks was significantly greater with A/L/C (-8.0 [0.6] mm Hg) than with A/L (-3.6 [0.6] mm Hg) (P < .001). In terms of the mean (SD) change in SitDBP at 2 weeks compared with baseline, A/L/C (-5.9 [0.5] mm Hg) was statistically different from A/L (-2.9 [0.5] mm Hg) (P < .001). Mean (SD) SitSBP change from baseline to week 2 was -13.2 (0.9) and -5.5 (0.9) in the A/L/C and A/L groups, respectively, with a statistically significant blood pressure-lowering effect (P < 0.001). The number of participants who achieved target blood pressure at week 8 was significantly higher in the A/L/C group (93 patients [55.7%]) than in the A/L group (48 [29.8%]) (P < 0.001). Adverse drug reactions were observed in 23 patients (7.0%), and the incidence of dizziness was significantly higher in the A/L/C group than in the A/L group (4.8% vs 0.6%, P = 0.037) There were no serious adverse events associated with the study drugs. Implications: The results of this study suggest that A/L/C had a significantly increased blood pressure-lowering efficacy compared with that of A/L and had a good safety profile. ClinicalTrials.gov identifier: NCT02916602.
Full Text
https://www.sciencedirect.com/science/article/pii/S0149291817309025
DOI
10.1016/j.clinthera.2017.08.013
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Seok Min(강석민) ORCID logo https://orcid.org/0000-0001-9856-9227
Hong, Bum Kee(홍범기) ORCID logo https://orcid.org/0000-0002-6456-0184
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/179868
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