[Effects of amlodipine plus telmisartan or amlodipine plus amiloride regimen on blood pressure control in hypertensive patients: preliminary report of Chinese Hypertension Intervention Efficacy (CHIEF) trial].
OBJECTIVE
To evaluate the effects of amlodipine-based antihypertensive combination regimen on blood pressure control and impact on cardiovascular events.


METHODS
From Oct. 2007 to Oct. 2008, a total of 13 542 hypertensive patients from 180 centers in China were included in this multi-centre randomized, controlled, blind-endpoint assessment clinical trial. Inclusion criteria were: essential hypertension, 50 - 79 years of age with at least one cardiovascular risk factor and signed consent forms. Patients were randomly assigned to receive low-dose amlodipine + diuretics (group A) or low-dose amlodipine + telmisartan (group T). The primary endpoints are composite of non-fatal stroke/myocardial infarction and cardiovascular death. All patients will be followed-up for 4 years.


RESULTS
The characteristics of patients between the two groups were similar: mean age (61.5 +/- 7.7) Yrs with 19% history of cerebrovascular diseases, 12% coronary diseases, 18% diabetes, 42% dyslipidemia, mean initial blood pressure 157/93 mm Hg. After 8-week treatment, mean blood pressure in group A and B were reduced to (133.0 +/- 11.0)/(81.0 +/- 7.6) mm Hg, (132.9 +/- 11.6)/(80.6 +/- 7.9) mm Hg respectively. Blood pressure control rates reached 72.1% and 72.6% in group A and T, respectively.


CONCLUSIONS
Amlodipine-based antihypertensive combination regimens achieved satisfactory blood pressure control rate in patients with essential hypertension in this patient cohort.
Wang
Wen
W
National Center for Cardiovascular Disease, Fu Wai Hospital, Peking Union Medical College, Beijing 100037, China.
Ma
Li-yuan
LY
Liu
Ming-bo
MB
Deng
Qing
Q
Zhang
Yu-qing
YQ
Li
Wei
W
Zhu
Ding-liang
DL
Lin
Shu-guang
SG
Huang
Jun
J
Liu
Li-sheng
LS
D000368:Aged; D017311:Amlodipine / Q000008:administration & dosage*; D000959:Antihypertensive Agents / Q000008:administration & dosage*; D001562:Benzimidazoles / Q000008:administration & dosage*; D001565:Benzoates / Q000008:administration & dosage*; D001794:Blood Pressure; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D006973:Hypertension / Q000188:drug therapy* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D000077333:Telmisartan
D000959:Antihypertensive Agents; D001562:Benzimidazoles; D001565:Benzoates; D017311:Amlodipine; D000077333:Telmisartan