AzTrials
AzTrials

Essential HypertensionPhase 3NCT00430950

Combination of Olmesartan and Hydrochlorothiazide in Essential Hypertension

A Phase 3 study testing olmesartan medoxomil (OM)+ hydrochlorothiazide (HCTZ) tablets and olmesartan medoxomil (OM)/ hydrochlorothiazide (HCTZ) 20mg/25mg in people with Essential Hypertension, run by Daiichi Sankyo at 41 sites in 4 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

The study will evaluate the blood pressure lowering effects of two different dosages of the combination of olmesartan and hydrochlorothiazide in patients with moderate or severe high blood pressure. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Essential Hypertension
What is being tested?
olmesartan medoxomil (OM)+ hydrochlorothiazide (HCTZ) tablets and olmesartan medoxomil (OM)/ hydrochlorothiazide (HCTZ) 20mg/25mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,011 participants
Where
41 sitesin 4 countries
Study dates
Feb 2007to Oct 2008
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

  • Male or female Europeans aged 18 years or older with moderate to severe HTN, defined as follows (conventional BP measurements)

Who cannot join

  • Female patients of childbearing potential pregnant, lactating or planning to become pregnant during the trial period.
  • Patients with serious disorders which may limit the ability to evaluate the efficacy or safety of the study medication, including cerebrovascular, cardiovascular, renal, respiratory, hepatic, gastrointestinal, endocrine or metabolic, haematological or oncological, neurological and psychiatric diseases.
  • Patients having a history of the following within the last six months:
  • myocardial infarction,
  • unstable angina pectoris,
  • percutaneous coronary intervention,
Show all 11Show fewer
  • severe heart failure,
  • hypertensive encephalopathy, cerebrovascular accident (stroke) or
  • transient ischaemic attack.
  • Patients with clinically significant abnormal laboratory values at screening.
  • Patients with secondary HTN.

Trial locations and contacts

41 sites in 4 countries.

41 sites in 4 countries

Netherlands15 sites
  • Study site

    's-Hertogenbosch

  • Study site

    Alphen aan den Rijn

  • Study site

    Amsterdam-Zuidoost

  • Study site

    Andijk

  • Study site

    De Bilt

  • Study site

    Ewijk

  • Study site

    Heerlen

  • Study site

    Hengelo

  • Study site

    Landgraaf

  • Study site

    Nijmegen

  • Study site

    Oud-Beijerland

  • Study site

    Ridderkerk

  • Study site

    The Hague

  • Study site

    Wildervank

  • Study site

    Zwijndrecht

Other trials in Netherlands

Germany14 sites
  • Study site

    Berlin

  • Study site

    Dortmund

  • Study site

    Essen

  • Study site

    Frankfurt

  • Study site

    Goch

  • Study site

    Hamburg

  • Study site

    Kallstadt

  • Study site

    Karlsruhe

  • Study site

    Kassel

  • Study site

    Magdeburg

  • Study site

    Marburg

  • Study site

    München

  • Study site

    Wiesbaden

  • Study site

    Wuppertal

Other trials in Germany

Belgium6 sites
  • Study site

    Bruges

  • Study site

    Brussels

  • Study site

    Drongen

  • Study site

    Godinne

  • Study site

    Mouscron

  • Study site

    Wetteren

Other trials in Belgium

Slovakia6 sites
  • Study site

    Bratislava

  • Study site

    Levice

  • Study site

    Lučenec

  • Study site

    Nitra

  • Study site

    Nové Zámky

  • Study site

    Vráble

Other trials in Slovakia

About this study

Official title: Efficacy and Safety of Olmesartan Medoxomil/Hydrochlorothiazide Combination 20/25 mg Versus 40/25 mg in Moderately to Severely Hypertensive Patients Not Adequately Controlled by Olmesartan Medoxomil 40 mg Monotherapy

The study will evaluate the blood pressure lowering effects of two different dosages of the combination of olmesartan and hydrochlorothiazide in patients with moderate or severe high blood pressure.

Being tested
olmesartan medoxomil (OM)+ hydrochlorothiazide (HCTZ) tablets, olmesartan medoxomil (OM)/ hydrochlorothiazide (HCTZ) 20mg/25mg
Keywords
Moderate-to-Severe Hypertension, Essential Hypertension, Combination Therapy, Fixed-Combination Dose
Medical subject headings
Essential Hypertension

What participants receive

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

  • olmesartan medoxomil (OM)+ hydrochlorothiazide (HCTZ) tabletsDrug

    olmesartan medoxomil (OM)+ hydrochlorothiazide (HCTZ)tablets 40mg/25mg + 20mg/25mg matching placebo tablets once daily for 8 weeks

  • olmesartan medoxomil (OM)/ hydrochlorothiazide (HCTZ) 20mg/25mgDrug

    olmesartan medoxomil (OM)/hydrochlorothiazide (HCTZ)20mg/25mg tablet + 40mg/25mg matching placebo tablet once a day for 8 weeks

Study groups in NCT00430950
Study groupRoleWhat they receive
1Experimentalolmesartan medoximil (OM)/ hydrochlorothiazide (HCTZ) 40/25 mg + OM/HCTZ 20/25 mg matching placebo
Receives: Drug: olmesartan medoxomil (OM)+ hydrochlorothiazide (HCTZ) tablets
2Experimentalolmesartan medoximil (OM)/ hydrochlorothiazide (HCTZ)20/25 mg + OM/HCTZ 40/25 matching placebo
Receives: Drug: olmesartan medoxomil (OM)/ hydrochlorothiazide (HCTZ) 20mg/25mg

What is being measured

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

  1. Change in Mean Trough Sitting Diastolic Blood Pressure

    Change in mean trough sitting diastolic Blood Pressure between OM/HCTZ 20/25 mg vs. 40/25 mg, in those patients inadequately controlled on OM 40 mg monotherapy, after eight weeks of double blind treatment, as compared to baseline.

    Change = Week 16 - Week 8 (baseline).

    Measured: 8 weeks

Secondary outcomes (4)
  1. Change in Mean Trough Sitting Diastolic Blood Pressure From Week 8(Baseline) to Week 12

    Change = Week 12 - Week 8 (baseline).

    Measured: 4 weeks

  2. Change in Sitting Systolic Blood Pressure 4 Weeks and 8 Weeks After Baseline.

    4 weeks Change = Week 12 - Week 8 (baseline). 8 weeks Change = Week 16 - Week 8 (baseline).

    Measured: 8 weeks

  3. Change in Daytime, Nighttime and 24-hour Blood Pressure Evaluated by Ambulatory Blood Pressure Monitoring 8 Weeks After Baseline.

    Change = Week 16 - Week 8 (baseline).

    Measured: 8 weeks

  4. Number of Participants Achieving Blood Pressure Goal.

    Measured: 8 weeks

Timeline

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

  1. First posted2 Feb 2007 (estimated)
  2. Study startFeb 2007
  3. Primary completionMay 2008
  4. Study completionOct 2008

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
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
1,011 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00430950
Sponsor's protocol ID
CS866CM-B-E302
Status last verified
Oct 2017
First submitted
1 Feb 2007
Last updated
10 Jan 2019
Individual data sharing
Yes: De-identified individual participant data (IPD) and applicable supporting clinical trial documents may be available upon request at https://vivli.org/. In cases where clinical trial data and supporting documents are provided pursuant to our company policies and procedures, Daiichi Sankyo will continue to protect the privacy of our clinical trial participants. Details on data sharing criteria and the procedure for requesting access can be found at this web address: https://vivli.org/ourmember/daiichi-sankyo/

Publications

  • Rosenbaum D, Girerd X. Olmesartan medoxomil combined with hydrochlorothiazide improves 24-hour blood pressure control in moderate-to-severe hypertension. Curr Med Res Opin. 2012 Feb;28(2):179-86. doi: 10.1185/03007995.2011.644626. Epub 2012 Jan 9.

    PubMed 22114906

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing olmesartan medoxomil (OM)+ hydrochlorothiazide (HCTZ) tablets and olmesartan medoxomil (OM)/ hydrochlorothiazide (HCTZ) 20mg/25mg in people with Essential Hypertension, run by Daiichi Sankyo at 41 sites in 4 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 1 inclusion and 11 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 10 Jan 2019. 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 Netherlands, Germany, Belgium, Slovakia. 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 20 Apr 2009). 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?

Change in Mean Trough Sitting Diastolic Blood Pressure (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 NCT00430950, 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 10 Jan 2019.

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