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HypertensionPhase 3NCT00695955

One-Year Safety and Tolerability Study of Azilsartan Medoxomil in Participants With Essential Hypertension

A Phase 3 study testing Azilsartan medoxomil with or without add-on chlorthalidone and Azilsartan medoxomil with or without add-on hydrochlorothiazide in people with Hypertension, run by Takeda at 41 sites in 3 countries.

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

This purpose of this study is to evaluate the long-term safety and tolerability of azilsartan medoxomil in individuals with essential hypertension. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hypertension
What is being tested?
Azilsartan medoxomil with or without add-on chlorthalidone and Azilsartan medoxomil with or without add-on hydrochlorothiazide
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
669 participants
Where
41 sitesin 3 countries
Study dates
Jun 2007to May 2010
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

  • Diastolic blood pressure greater than or equal to 95 mm Hg and less than or equal to 119 mm Hg. For diabetic subjects and subjects with chronic kidney disease, diastolic blood pressure must be greater than or equal to 85 mm Hg and less than or equal to109 mm Hg).
  • Females of childbearing potential who are sexually active must agree to use adequate contraception, and can neither be pregnant nor lactating.
  • Clinical laboratory evaluations within the reference range for or deemed not clinically significant by the investigator.

Who cannot join

  • Systolic blood pressure greater than 185 mm Hg.
  • Expected to take angiotensin II receptor blockers other than the study drug.
  • Taking more than 2 antihypertensive agents.
  • Hypersensitive to angiotensin II receptor blockers, thiazide-type diuretics or sulfonamide-derived compounds.
  • Recent history of major cardiovascular event.
  • History of moderate to severe heart failure or hypertensive encephalopathy.
Show all 18Show fewer
  • Clinically significant cardiac conduction defects.
  • Secondary hypertension of any etiology.
  • Known or suspected unilateral or bilateral renal artery stenosis.
  • Severe renal dysfunction or disease.
  • History of drug abuse or a history of alcohol abuse within the past 2 years.
  • Previous history of cancer that has not been in remission for at least 5 years prior to the first dose of study drug..
  • Uncontrolled diabetes mellitus.
  • Alanine aminotransferase level of greater than 2.5 times the upper limit of normal, active liver disease, or jaundice.
  • Serum potassium level of greater than the upper limit of normal.
  • Currently is participating in another investigational study or has participated in an investigational study within 30 days prior to enrollment.
  • Any other serious disease or condition.
  • Randomized in a previous azilsartan medoxomil study.

Trial locations and contacts

41 sites in 3 countries.

41 sites in 3 countries

United States39 sites
  • Study site

    Akron, Ohio

  • Study site

    Anderson, South Carolina

  • Study site

    Arlington, Texas

  • Study site

    Atlanta, Georgia

  • Study site

    Augusta, Georgia

  • Study site

    Austin, Texas

  • Study site

    Bristol, Tennessee

  • Study site

    Brooklyn Center, Minnesota

  • Study site

    Charlotte, North Carolina

  • Study site

    Cincinnati, Ohio

  • Study site

    Colorado Springs, Colorado

  • Study site

    Fort Lauderdale, Florida

  • Study site

    Hollywood, Florida

  • Study site

    Jacksonville, Florida

  • Study site

    Long Beach, California

  • Study site

    Miami, Florida

  • Study site

    Mogadore, Ohio

  • Study site

    Mt. Pleasant, South Carolina

  • Study site

    Nashville, Tennessee

  • Study site

    Norfolk, Virginia

  • Study site

    North Richland Hills, Texas

  • Study site

    Oklahoma City, Oklahoma

  • Study site

    Olive Branch, Mississippi

  • Study site

    Ozark, Alabama

  • Study site

    Pembroke Pines, Florida

  • Study site

    Philadelphia, Pennsylvania

  • Study site

    Pinellas Park, Florida

  • Study site

    Raleigh, North Carolina

  • Study site

    Rochester, New York

  • Study site

    Salisbury, North Carolina

  • Study site

    Salt Lake City, Utah

  • Study site

    Santa Rosa, California

  • Study site

    Simpsonville, South Carolina

  • Study site

    Spring Valley, California

  • Study site

    Springdale, Ohio

  • Study site

    Tallassee, Alabama

  • Study site

    Trumbull, Connecticut

  • Study site

    Waterbury, Connecticut

  • Study site

    Winston-Salem, North Carolina

Other trials in United States

Chile1 site
  • Study site

    San Bernardo, Santiago Metropolitan

Other trials in Chile

Mexico1 site
  • Study site

    Tijuana, Estado de Baja California

Other trials in Mexico

About this study

Official title: A One-Year Phase 3, Open-Label Study to Evaluate the Safety and Tolerability of TAK-491 in Subjects With Essential Hypertension

This purpose of this study is to evaluate the long-term safety and tolerability of azilsartan medoxomil in individuals with essential hypertension.

Read the detailed description

Hypertension affects approximately 50 million individuals in the United States. As the population ages, the prevalence of hypertension will continue to increase if broad and effective preventive measures are not implemented. According to the World Health Organization, hypertension is the most common attributable cause of preventable death in developed nations, as uncontrolled hypertension greatly increases the risk of cardiovascular disease, cerebrovascular disease, and renal failure. Despite the availability of antihypertensive treatments, hypertension remains inadequately controlled; only about one-third of patients continue to maintain control successfully.

Takeda Global Research and Development is developing TAK-491 (azilsartan medoxomil) for the treatment of essential hypertension. This study is being conducted to demonstrate the long-term safety and tolerability of azilsartan medoxomil in individuals with essential hypertension.

Study participation is anticipated to be approximately 1 year and 1.5 months, and participants will be required to return to the clinic for 10 study visits.

Conditions
Hypertension
Being tested
Azilsartan medoxomil with or without add-on chlorthalidone, Azilsartan medoxomil with or without add-on hydrochlorothiazide
Keywords
Essential Hypertension, Cardiovascular Disease, High Blood Pressure, Drug Therapy
Medical subject headings
Hypertension, Essential Hypertension, Cardiovascular Diseases

What participants receive

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

  • Azilsartan medoxomil with or without add-on chlorthalidoneDrug

    Also called TAK-491, Edarbi

    Azilsartan medoxomil 40 mg, tablets, orally, once daily for four weeks; increased to azilsartan medoxomil 80 mg, tablets, orally, once daily for remainder of 56-week treatment period, if tolerated. Additional antihypertensive medications added, beginning with chlorthalidone 25 mg, once-daily, if target blood pressure not achieved.

  • Azilsartan medoxomil with or without add-on hydrochlorothiazideDrug

    Also called TAK-491, Edarbi

    Azilsartan medoxomil 40 mg, tablets, orally, once daily for four weeks; increased to azilsartan medoxomil 80 mg, tablets, orally, once daily for remainder of 56-week treatment period, if tolerated. Additional antihypertensive medications added, beginning with hydrochlorothiazide 12.5 to 25 mg, once-daily, if target blood pressure not achieved.

Study groups in NCT00695955
Study groupRoleWhat they receive
Azilsartan MedoxomilExperimentalNot described
Receives: Drug: Azilsartan medoxomil with or without add-on chlorthalidone; Drug: Azilsartan medoxomil with or without add-on hydrochlorothiazide

What is being measured

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

  1. Number of Participants Reporting One or More Treatment-emergent Adverse Events From Day 1 Through End of the Study - Cohort 1.

    Treatment-emergent adverse events are defined as any unfavorable and unintended sign, symptom or disease temporally associated with the use of a medicinal product reported from first dose of study drug through 14 days after the last dose of study drug, or if a serious adverse event, within 30 days after the last dose of study drug.

    Measured: 56 weeks.

  2. Number of Participants Reporting One or More Treatment-emergent Adverse Events From Day 1 Through End of the Study - Cohort 2.

    Treatment-emergent adverse events are defined as any unfavorable and unintended sign, symptom or disease temporally associated with the use of a medicinal product reported from first dose of study drug through 14 days after the last dose of study drug, or if a serious adverse event, within 30 days after the last dose of study drug.

    Measured: 56 weeks.

Secondary outcomes (4)
  1. Change From Baseline in Sitting Clinic Systolic Blood Pressure - Cohort 1.

    The change between sitting clinic systolic blood pressure measured at each week assessed relative to the baseline measurement. Mean calculated by using the average (arithmetic mean) of 3 measurements performed at each visit.

    Measured: 52 weeks

  2. Change From Baseline in Sitting Clinic Systolic Blood Pressure - Cohort 2

    The change between sitting clinic systolic blood pressure measured at each week assessed relative to the baseline measurement. Mean calculated by using the average (arithmetic mean) of 3 measurements performed at each visit.

    Measured: 52 weeks

  3. Change From Baseline in Sitting Clinic Diastolic Blood Pressure - Cohort 1.

    The change between sitting clinic diastolic blood pressure measured at each week assessed relative to the baseline measurement. Mean calculated by using the average (arithmetic mean) of 3 measurements performed at each visit.

    Measured: 52 weeks.

  4. Change From Baseline in Sitting Clinic Diastolic Blood Pressure - Cohort 2.

    The change between sitting clinic diastolic blood pressure measured at each week assessed relative to the baseline measurement. Mean calculated by using the average (arithmetic mean) of 3 measurements performed at each visit.

    Measured: 52 weeks.

Timeline

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

  1. First posted12 Jun 2008 (estimated)
  2. Study startJun 2007
  3. Primary completionMay 2010
  4. Study completionMay 2010

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
Masking
None (open label)
Enrolment
669 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00695955
Sponsor's protocol ID
01-05-TL-491-006
Other IDs
U1111-1113-8874
Status last verified
Mar 2011
First submitted
10 Jun 2008
Last updated
19 Apr 2011
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Azilsartan medoxomil with or without add-on chlorthalidone and Azilsartan medoxomil with or without add-on hydrochlorothiazide in people with Hypertension, run by Takeda at 41 sites in 3 countries.

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 3 inclusion and 18 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 19 Apr 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 41 sites in United States, Chile, Mexico. 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 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?

Yes. Results are posted in the registry (first posted 19 Apr 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Number of Participants Reporting One or More Treatment-emergent Adverse Events From Day 1 Through End of the Study - Cohort 1. (time frame: 56 weeks.). The study lists 2 primary outcomes in all. 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 19 Apr 2011.

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