Hypertension Control Based on Home Blood Pressure - Full Text View

Purpose

The aim of this trial is to study the effects of antihypertensive therapy based on home systolic blood pressure (BP) with different target levels using two classes of drugs.

The HOSP study is a multicenter, prospective, randomized, open, blinded endpoint study. The study subjects are 40-79 years old hypertensive patients. After a 4 weeks of baseline period, subjects are randomly assigned to (1) modest control group (morning home BP <140 mmHg) or (2) strict control group (morning home BP <130 mmHg), and to (a) amlodipine group or (b) losartan group. Additional antihypertensive drugs can be used if home BP is not controlled. Home BP is measured in the early morning and late evening. The participants will be followed up for 5 years.

Condition	Intervention	Phase
Hypertension	Drug: Amlodipine, Losartan	Phase IV

MedlinePlus related topics:

High Blood Pressure

ChemIDplus related topics:

Calcium gluconate Amlodipine Amlodipine besylate Losartan potassium Losartan

U.S. FDA Resources

Study Type:	Interventional
Study Design:	Treatment, Randomized, Open Label, Active Control, Factorial Assignment, Safety/Efficacy Study

Official Title:	Hypertension Control Based on Home Systolic Pressure Study (HOSP Study)

Further study details as provided by Ministry of Health, Labour and Welfare:

Primary Outcome Measures:

Combined cardiovascular events [ Time Frame: 5 years ] [ Designated as safety issue: No ]

Secondary Outcome Measures:

Total mortality [ Time Frame: 5 years ] [ Designated as safety issue: Yes ]
Cardiovascular mortality [ Time Frame: 5 years ] [ Designated as safety issue: No ]
Myocardial infarction and new-onset angina [ Time Frame: 5 years ] [ Designated as safety issue: No ]
Stroke and transient ischemic attack [ Time Frame: 5 years ] [ Designated as safety issue: No ]
Renal failure [ Time Frame: 5 years ] [ Designated as safety issue: No ]
Aortic and peripheral artery diseases [ Time Frame: 5 years ] [ Designated as safety issue: No ]
Left ventricular mass and function [ Time Frame: 5 years ] [ Designated as safety issue: No ]
Urinary albumin and renal function [ Time Frame: 5 years ] [ Designated as safety issue: No ]

Estimated Enrollment:	2600
Study Start Date:	April 2000
Estimated Study Completion Date:	March 2012
Estimated Primary Completion Date:	March 2012 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
1: Active Comparator target morning home blood pressure (below 130 mmHg vs 130-139 mmHg)	Drug: Amlodipine, Losartan amlodipine: 2.5-10 mg once daily for 5 years losartan: 25-100 mg once daily for 5 years
2: Active Comparator antihypertensive drug (amlodipine vs losartan)	Drug: Amlodipine, Losartan amlodipine: 2.5-10 mg once daily for 5 years losartan: 25-100 mg once daily for 5 years

Detailed Description:

The aim of this trial is to study the effects of antihypertensive therapy based on home systolic blood pressure (BP) with different target levels using two classes of drugs.

The HOSP study is a multicenter, prospective, randomized, open, blinded endpoint study. Inclusion criteria are 40-79 years old treated or untreated hypertensive patients without serious medical conditions. After a 4 weeks of baseline period, subjects are randomly assigned to (1) modest control group (target morning home BP <140 mmHg) or (2) strict control group (morning home BP <130 mmHg), and to (a) amlodipine group (2.5-5 mg od) or (b) losartan group (25-50 mg od). Additional antihypertensive drugs (diuretics, beta-blockers and alpha-blockers) can be used if home BP is not controlled. Home BP is measured in the early morning and late evening. Primary end point is combined cardiovascular events.The participants will be followed up for 5 years.

Eligibility

Ages Eligible for Study:	40 Years to 79 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

Clinical diagnosis of hypertension

Exclusion Criteria:

Severe hypertension (treated with 3 or more antihypertensive drugs)
Unable to change antihypertensive drugs to a calcium antagonist or an angiotensin antagonist
Serious medical conditions
Women who may become to be pregnant

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00198562

Locations


Japan, Osaka
	National Cardiovascular Center
	Suita, Osaka, Japan, 565-8565

Sponsors and Collaborators

Ministry of Health, Labour and Welfare

Japan Cardiovascular Research Foundation

Investigators


Principal Investigator:	Yuhei Kawano, M.D., Ph.D.	Division of Hypertension and Nephrology, National Cardiovascular Center

More Information

Responsible Party:	National Cardiovascular Center ( Yuhei Kawano, M.D., Ph.D., Director of Division of Hypertension and Nephrology )
Study ID Numbers:	H16-CV-001, 200400510B
First Received:	September 12, 2005
Last Updated:	April 18, 2008
ClinicalTrials.gov Identifier:	NCT00198562
Health Authority:	Japan: Ministry of Health, Labor and Welfare

Keywords provided by Ministry of Health, Labour and Welfare:

Antihypertensive therapy

Home blood pressure

Systolic blood pressure

Morning blood pressure

Calcium antagonist

Angiotensin receptor antagonist

Study placed in the following topic categories:

Losartan

Vascular Diseases

Angiotensin II

Amlodipine

Hypertension

Additional relevant MeSH terms:

Angiotensin II Type 1 Receptor Blockers

Membrane Transport Modulators

Vasodilator Agents

Molecular Mechanisms of Pharmacological Action

Therapeutic Uses

Calcium Channel Blockers

Cardiovascular Diseases

Anti-Arrhythmia Agents

Cardiovascular Agents

Antihypertensive Agents

Pharmacologic Actions

ClinicalTrials.gov processed this record on July 18, 2008

Sponsors and Collaborators:	Ministry of Health, Labour and Welfare Japan Cardiovascular Research Foundation
Information provided by:	Ministry of Health, Labour and Welfare
ClinicalTrials.gov Identifier:	NCT00198562