Irbesartan/Hydrochlorothiazide (HCTZ) Combination Therapy for Patients With Moderate Hypertension

The purpose of this clinical research is to learn if moderate hypertension can be better controlled by initially treating with a combination of drugs (Irbesartan/HCTZ), in patients who are unlikely to achieve blood pressure (B/P) control with only one drug. In addition, the study will also evaluate the safety and tolerability of the drugs...

Date First Received: November 5, 2004

Last Updated: August 13, 2008

Verified by: Bristol-Myers Squibb, August 2008

Clinical Trial Phase: Phase 3 | Start Date: October 2004

Overall Status: Completed

Estimated Enrollment: 496

Brief Summary

Official Title: “The Efficacy and Safety of Irbesartan/HCTZ Combination Therapy as First Line Treatment for Patients With Moderate Hypertension”

Condition Keyword(s):

The purpose of this clinical research is to learn if moderate hypertension can be better controlled by initially treating with a combination of drugs (Irbesartan/HCTZ), in patients who are unlikely to achieve blood pressure (B/P) control with only one drug. In addition, the study will also evaluate the safety and tolerability of the drugs.

Study Type: Interventional

Study Design: Treatment, Randomized, Double Blind (Subject, Investigator), Active Control, Parallel Assignment, Safety/Efficacy Study

Intervention(s) in this Clinical Trial

  • Drug: Irbesartan/HCTZ
    • Tablets, Oral, Irbesartan 150 mg/HCTZ 12.5 mg, Once daily, 12 weeks.
  • Drug: Irbesartan monotherapy
    • Tablets, Oral, 150 mg, Once daily, 12 weeks.
  • Drug: HCTZ monotherapy
    • Tablets, Oral, 12.5 mg, Once daily, 12 weeks.

Arms, Groups and Cohorts in this Clinical Trial

  • Experimental: A1
  • Active Comparator: A2
  • Active Comparator: A3

Outcome Measures for this Clinical Trial

Primary Measures

  • Change from baseline in SeSBP at Week 8

Secondary Measures

  • Frequency of discontinuation due to AE, frequencies of hypotension, dizziness, syncope, headaches, hypokalemia and hyperkalemia after 12 weeks of therapy.

Criteria for Participation in this Clinical Trial

Inclusion Criteria:

  • Willing to provide written informed consent
  • Subjects must have uncontrolled hypertension defined as:
  • average systolic blood pressure between 160 mmHg and 180 mmHg (while diastolic blood pressure is less than 110 mmHg) or
  • average diastolic blood pressure between 100 mmHg and 110 mmHg (while systolic blood pressure is between 130 mmHg and 180 mmHg)
  • Subjects must be willing to discontinue their antihypertensive medication, if applicable.
  • Men and women, ages 18 and older will be included.
  • Women of childbearing potential (WOCBP) must be using an adequate method of contraception to avoid pregnancy throughout the study and for up to one week after the study in such a manner that the risk of pregnancy is minimized. WOCBP must have a negative serum or urine pregnancy test within 72 hours prior to the start of study medication.

Exclusion Criteria:

  • Women who are pregnant or breastfeeding
  • Known or suspected secondary hypertension
  • Hypertension emergencies or stroke within the past 12 months.
  • Heart attack, angina or bypass surgery within the past six months.
  • Significant kidney disease
  • Significant liver disease
  • Systemic lupus erythematosus
  • Gastrointestinal disease or surgery that interfere with drug absorption
  • Cancer during the past five years excluding localized squamous cell or basal cell carcinoma of the skin
  • Currently pregnant or lactating
  • Mental condition (psychiatric or organic cerebral disease) rendering the subject unable to understand the nature, scope, and possible consequences of the study
  • Drug or alcohol abuse within the last five years
  • Known allergy to irbesartan or diuretics

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: N/A

Are Healthy Volunteers Accepted for this Clinical Trial?: No

Clinical Trial Sponsor Information

Lead Sponsor: Bristol-Myers Squibb

Overall Clinical Trial Officials and Contacts

Bristol-Myers Squibb Study Director Bristol-Myers Squibb  

Additional Information

Information obtained from ClinicalTrials.gov on August 29, 2008

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00095550

Study ID Number: CV131-185

ClinicalTrials.gov Identifier: NCT00095550

Health Authority: United States: Food and Drug Administration

BMS Clinical Trials Disclosure

For FDA Safety Alerts and Recalls refer to the following link www.fda.gov/MEDWATCH/safety.htm

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