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HypertensionPhase 3NCT00354991

Hyzaar Asia HEAALTH (0954A-950)

A Phase 3 study testing losartan potassium (+) hydrochlorothiazide in people with Hypertension, run by Merck Sharp & Dohme LLC.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of the study is to estimate the percentage of patients who reach blood pressure goal after 8 weeks of treatment with losartan/HCTZ combination. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hypertension
What is being tested?
losartan potassium (+) hydrochlorothiazide
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
437 participants
Where
No sites listed yet
Study dates
1 Jun 2006to 1 Apr 2007
Phase
Phase 3
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient is male or female and = 18 years of age
  • Patients with essential hypertension previously treated with antihypertensive medications for at least 4 weeks but did not reach the blood pressure goal

Who cannot join

  • History of any condition, therapy, lab abnormality or other circumstance that might confound the results of the study, or interfere with the patient's participation for the full duration of the study, such that it is not in the best interest of the patient/subject to participate
  • Pregnant or breastfeeding, or expecting to conceive within the projected duration of the study
  • Previous history of severe essential hypertension
  • History of stroke or myocardial infarction (heart attack)
  • Evidence of renal or liver disease
  • Uncontrolled diabetes mellitus
Show all 9Show fewer
  • Any known bleeding disorder
  • Known sensitivity or intolerance to the study medication (losartan or hydrochlorothiazide)
  • Other antihypertensive medications or medications that may affect blood pressure

About this study

Official title: An Open Label Study to Assess the Efficacy of Losartan/HCTZ Combination Therapy in Patients With Essential Hypertension Who Were Inadequately Controlled on Current Antihypertensive Monotherapy

The objective of the study is to estimate the percentage of patients who reach blood pressure goal after 8 weeks of treatment with losartan/HCTZ combination.

Conditions
Hypertension
Being tested
losartan potassium (+) hydrochlorothiazide
Medical subject headings
Hypertension

What participants receive

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

  • losartan potassium (+) hydrochlorothiazideDrug

    Patients took losartan 50 mg /HCTZ 12.5 mg orally once daily for 13 weeks. At Weeks 0, 4 and 8 if the blood pressure goal was not reached then the losartan/HCTZ combination will be titrated upwards according to the following scheme: losartan 50/HCTZ 12.5 to losartan 100/HCTZ 12.5 to losartan 100/HCTZ 25.

Study groups in NCT00354991
Study groupRoleWhat they receive
1ExperimentalLosartan/HCTZ
Receives: Drug: losartan potassium (+) hydrochlorothiazide

What is being measured

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

  1. Percentage of patients reaching a blood pressure goal (diastolic <90mm Hg for non-diabetics; <80mm Hg for diabetics) after 8 weeks of treatment

    Measured: 8 Weeks

Secondary outcomes (1)
  1. Safety and tolerability

    Measured: 13 Weeks

Timeline

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

  1. First posted20 Jul 2006 (estimated)
  2. Study start1 Jun 2006
  3. Primary completion1 Apr 2007
  4. Study completion1 Apr 2007

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 3
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
437 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00354991
Sponsor's protocol ID
0954A-950
Other IDs
MK0954A-950, 2006_012
Status last verified
May 2017
First submitted
18 Jul 2006
Last updated
9 May 2017
Results posted
No

Publications

  • Kim KS, Fan WH, Kim YD, Zhu W, Ngau YY, Tong P, Kim BS, Santos M, Lin WH, Buranakitjaroen P, Massaad R, Smith RD; Asia HEAALTH Study Investigators. Effectiveness of open-label losartan/hydrochlorothiazide combination therapy in Asian patients with hypertension not controlled with ACE inhibitor or ARB monotherapy. Hypertens Res. 2009 Jun;32(6):520-6. doi: 10.1038/hr.2009.42. Epub 2009 Apr 24.

    PubMed 19390542

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing losartan potassium (+) hydrochlorothiazide in people with Hypertension, run by Merck Sharp & Dohme LLC.

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 2 inclusion and 9 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: finished, as of the sponsor's last update on 9 May 2017. Status can change between updates, so confirm with the study contact before making plans.

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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Percentage of patients reaching a blood pressure goal (diastolic <90mm Hg for non-diabetics; <80mm Hg for diabetics) after 8 weeks of treatment (time frame: 8 Weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00354991, which also lists 1 linked publication.

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 9 May 2017.

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