Long-term efficacy of combination therapy with losartan and low-dose hydrochlorothiazide in patients with uncontrolled hypertension.
We evaluated the long-term efficacy of losartan and low-dose hydrochlorothiazide combination therapy in the treatment of hypertension. We enrolled 15 Japanese hypertensive outpatients whose 24-hour ambulatory blood pressure was >or= 135/80 mmHg after candesartan 8 mg (CND group; n = 10) monotherapy or amlodipine 5 mg (AML group; n = 5) monotherapy for 2 months or more. The monotherapy was then switched to losartan 50 mg and hydrochlorothiazide 12.5 mg combination therapy. Ambulatory blood pressure and indices of glucose and lipid metabolism were measured at the end of the monotherapy and after 3 and 12 months of the combination therapy. In the CND group, 24-hour blood pressure decreased significantly from 137 +/- 9/89 +/- 4 to 126 +/- 8/81 +/- 7 mmHg after 3 months (P < 0.05/ P < 0.001) and to 123 +/- 7/81 +/- 4 mmHg after 12 months (P < 0.01/P < 0.001). In the AML group, 24-hour blood pressure decreased significantly from 137 +/- 11/81 +/- 7 to 125 +/- 12/75 +/- 6 mmHg after 3 months (P < 0.05/P < 0.05) and to 124 +/- 9/77 +/- 7 mmHg after 12 months (P < 0.05/NS). There were significant decreases in systolic blood pressure during the daytime (6:00-21:30), nighttime (22:00-5:30) and early morning (6:00-8:00) after 12 months in both groups. No adverse changes in the indices of glucose or lipid metabolism were observed in either group. In conclusion, long-term combination therapy with losartan and low-dose hydrochlorothiazide was effective in the treatment of hypertensive patients whose blood pressure was not controlled by candesartan or amlodipine monotherapy alone.
Minami
Junichi
J
Department of Hypertension and Cardiorenal Medicine, Dokkyo University School of Medicine, Mibu, Tochigi, Japan.
Abe
Chikara
C
Akashiba
Akira
A
Takahashi
Toshiaki
T
Kameda
Tomoko
T
Ishimitsu
Toshihiko
T
Matsuoka
Hiroaki
H
D000328:Adult; D000368:Aged; D017311:Amlodipine / Q000627:therapeutic use; D000959:Antihypertensive Agents / Q000008:administration & dosage*; D001562:Benzimidazoles / Q000627:therapeutic use; D001713:Biphenyl Compounds; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006852:Hydrochlorothiazide / Q000008:administration & dosage*; D006973:Hypertension / Q000188:drug therapy*; D019808:Losartan / Q000008:administration & dosage*; D008297:Male; D008875:Middle Aged; D013777:Tetrazoles / Q000627:therapeutic use; D016896:Treatment Outcome
D000959:Antihypertensive Agents; D001562:Benzimidazoles; D001713:Biphenyl Compounds; D013777:Tetrazoles; D006852:Hydrochlorothiazide; D017311:Amlodipine; D019808:Losartan; C081643:candesartan