Safety/Efficacy of Valsartan/Hydrochlorothiazide Combination Compared to Hydrochlorothiazide in Obese Hypertensive Adults

April 19, 2017 updated by: Novartis Pharmaceuticals

A 16-week Double-blind, Randomized, Multicenter, Force-titration Study to Evaluate the Antihypertensive Efficacy of Valsartan/Hydrochlorothiazide (HCTZ) Therapy Compared to HCTZ Based Therapy in Obese, Hypertensive Patients

The purpose of this study is to compare the blood pressure lowering efficacy of valsartan/hydrochlorothiazide (HCTZ) compared to hydrochlorothiazide for the treatment of obese hypertensive (mean sitting systolic blood pressure [MSSBP] >150 mmHg) patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
412

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Alabama
      • Muscle Shoals, Alabama, United States, 35662
        • Terence T. Hart, MD
    • California
      • Westlake Village, California, United States, 91361
        • Westlake Medical Research
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73132
        • Oklahoma Cardiovascular & Hypertension
    • Texas
      • Euless, Texas, United States, 76040
        • Northeast Tarrant Internal Medicine Assoc
    • Washington
      • Port Orchard, Washington, United States, 98366
        • Frandsen Family Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

40 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 40 years of age or older
  • Moderate or severe high blood pressure defined as systolic blood pressure (the top number) greater than or equal to 150 mmHg and diastolic blood pressure (the bottom number) less then 110 mmHg
  • Central (abdominal) obesity

Exclusion Criteria:

  • Systolic blood pressure (the top number) greater than or equal to 180 mmHg and diastolic blood pressure (the bottom number) greater than or equal to 110 mmHg
  • Currently taking more then 3 medications to treat high blood pressure
  • Inability to stop all current blood pressure medications if any up to 4 weeks
  • History of Type 1 or Type 2 diabetes
  • History of stroke, mini-stroke (transient ischemic attack) or heart attack within the last 6 months
  • History of or current diagnosis of congestive heart failure
  • History of cancer within the past 5 years with the exception of localized basal cell carcinoma or squamous cell carcinoma
  • Women who are pregnant or nursing
  • Alcohol or drug abuse within the last 2 years

Other protocol-defined inclusion/exclusion criteria may apply

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: valsartan/HCTZ
Drug: Valsartan/HCTZ
  • 160 mg film-coated valsartan tablets
  • 320 mg film-coated valsartan tablets
  • 12.5 mg HCTZ capsules
  • 25 mg HCTZ capsules
Active Comparator: HCTZ +Amlodipine
Drug: HCTZ + Amlodipine
  • 12.5 mg HCTZ capsules
  • 25 mg HCTZ capsules
  • 5 mg amlodipine capsules
  • 10 mg amlodipine capsules

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Change in Mean Sitting Systolic Blood Pressure (MSSBP)
Time Frame: Baseline to Week 8
Baseline to Week 8

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in Mean Sitting Diastolic Blood Pressure (MSDBP)
Time Frame: Baseline to Weeks 4, 8, 12 and 16
Baseline to Weeks 4, 8, 12 and 16
Number of Patients Achieving Blood Pressure (BP) Control by Visit (< 140/90 mm Hg)
Time Frame: Weeks 4, 8, 12 16 and End of Study (for patients that did not complete the last visit at week 16)
Mean sitting systolic blood pressure/mean sitting diastolic blood pressure < 140/90 mm Hg
Weeks 4, 8, 12 16 and End of Study (for patients that did not complete the last visit at week 16)
Number of Patients Achieving Blood Pressure (BP)Control by Visit (< 130/80 mm Hg)
Time Frame: Week 4, 8, 12, 16, End of Study (for patients that did not complete the last visit at week 16)
Mean sitting systolic blood pressure/mean sitting diastolic blood pressure < 130/80 mm Hg
Week 4, 8, 12, 16, End of Study (for patients that did not complete the last visit at week 16)
Change From Baseline in Postprandial Glucose
Time Frame: Week 16
After a 75 gram anhydrous glucose challenge 2 hours after an oral glucose tolerance test
Week 16
Change From Baseline in Postprandial Insulin
Time Frame: Week 16
After a 75 gram anhydrous glucose challenge 2 hours after an oral glucose tolerance test
Week 16
Change From Baseline in Postprandial Non-esterified Fatty Acids
Time Frame: Week 16
After a 75 gram anhydrous glucose challenge 2 hours after an oral glucose tolerance test
Week 16

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Novartis Pharmaceuticals

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2006

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2007

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 23, 2007

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 23, 2007

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 26, 2007

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 16, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 19, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CVAH631BUS06

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Conditions

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