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HypertensionPhase 4NCT00198562

Hypertension Control Based on Home Blood Pressure

A Phase 4 study testing Amlodipine, Losartan in people with Hypertension, run by Ministry of Health, Labour and Welfare, Japan at 1 site in Japan.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 40 to 79 years
Conditions the study is for
Hypertension
What is being tested?
Amlodipine, Losartan
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2,600 participants
Where
1 siteJapan
Study dates
Apr 2000to Mar 2012
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 79 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Clinical diagnosis of hypertension

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • National Cardiovascular Center

    Suita, Osaka, 565-8565

Other trials in Japan

About this study

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

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.

Read the 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.

Conditions
Hypertension
Being tested
Amlodipine, Losartan
Keywords
Antihypertensive therapy, Home blood pressure, Systolic blood pressure, Morning blood pressure, Calcium antagonist, Angiotensin receptor antagonist
Medical subject headings
Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Amlodipine, LosartanDrug

    Also called other antihypertensive drugs (if required)

    amlodipine: 2.5-10 mg once daily for 5 years losartan: 25-100 mg once daily for 5 years

Study groups in NCT00198562
Study groupRoleWhat they receive
1Active comparatortarget morning home blood pressure (below 130 mmHg vs 130-139 mmHg)
Receives: Drug: Amlodipine, Losartan
2Active comparatorantihypertensive drug (amlodipine vs losartan)
Receives: Drug: Amlodipine, Losartan

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Combined cardiovascular events

    Measured: 5 years

Secondary outcomes (8)
  1. Total mortality

    Measured: 5 years

  2. Cardiovascular mortality

    Measured: 5 years

  3. Myocardial infarction and new-onset angina

    Measured: 5 years

  4. Stroke and transient ischemic attack

    Measured: 5 years

  5. Renal failure

    Measured: 5 years

  6. Aortic and peripheral artery diseases

    Measured: 5 years

  7. Left ventricular mass and function

    Measured: 5 years

  8. Urinary albumin and renal function

    Measured: 5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Sep 2005 (estimated)
  2. Study startApr 2000
  3. Primary completionMar 2012 (estimated)
  4. Study completionMar 2012 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Masking
None (open label)
Enrolment
2,600 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00198562
Sponsor's protocol ID
H16-CV-001
Other IDs
200400510B
Status last verified
Apr 2008
First submitted
12 Sep 2005
Last updated
22 Apr 2008
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Amlodipine, Losartan in people with Hypertension, run by Ministry of Health, Labour and Welfare, Japan at 1 site in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 22 Apr 2008. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Combined cardiovascular events (time frame: 5 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Apr 2008.

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