Safety/Efficacy of Valsartan/Hydrochlorothiazide Combination Compared to Hydrochlorothiazide in Obese Hypertensive Adults - Full Text View

Purpose

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.

Condition	Intervention	Phase
Hypertension	Drug: HCTZ + Amlodipine Drug: Valsartan/HCTZ	Phase 4


Study Type:	Interventional
Study Design:	Allocation: Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Investigator) Primary Purpose: Treatment
Official Title:	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

Resource links provided by NLM:

Drug Information available for: Hydrochlorothiazide Amlodipine Amlodipine besylate Valsartan

U.S. FDA Resources

Further study details as provided by Novartis:

Primary Outcome Measures:

Change in Mean Sitting Systolic Blood Pressure (MSSBP) [ Time Frame: Baseline to Week 8 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:

Change in Mean Sitting Diastolic Blood Pressure (MSDBP) [ Time Frame: Baseline to Weeks 4, 8, 12 and 16 ] [ Designated as safety issue: No ]
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) ] [ Designated as safety issue: No ]
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) ] [ Designated as safety issue: No ]
Change From Baseline in Postprandial Glucose [ Time Frame: Week 16 ] [ Designated as safety issue: No ]
Change From Baseline in Postprandial Insulin [ Time Frame: Week 16 ] [ Designated as safety issue: No ]
Change From Baseline in Postprandial Non-Esterified Fatty Acids [ Time Frame: Week 16 ] [ Designated as safety issue: No ]


Enrollment:	412
Study Start Date:	December 2006
Primary Completion Date:	November 2007 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
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

Eligibility


Ages Eligible for Study:	40 Years and older (Adult, Senior)
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

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

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00439738

Locations


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

Sponsors and Collaborators

Novartis Pharmaceuticals

Investigators


Study Chair:	Novartis Pharmaceuticals	Novartis Pharmaceuticals

More Information

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Deedwania PC, Zappe DH, Egan BM, Purkayastha D, Samuel R, Sowers JR. Does response of RAS blockade on serum K+ levels influence its glycemic-mitigating response when combined with hydrochlorothiazide? J Clin Hypertens (Greenwich). 2012 Jul;14(7):415-21. doi: 10.1111/j.1751-7176.2012.00635.x. Epub 2012 Apr 26.

Ofili EO, Zappe DH, Purkayastha D, Samuel R, Sowers JR. Antihypertensive and metabolic effects of Angiotensin receptor blocker/diuretic combination therapy in obese, hypertensive African American and white patients. Am J Ther. 2013 Jan;20(1):2-12. doi: 10.1097/MJT.0b013e318230ae66.

Sowers JR, Raij L, Jialal I, Egan BM, Ofili EO, Samuel R, Zappe DH, Purkayastha D, Deedwania PC. Angiotensin receptor blocker/diuretic combination preserves insulin responses in obese hypertensives. J Hypertens. 2010 Aug;28(8):1761-9. doi: 10.1097/HJH.0b013e32833af380.


Responsible Party:	External Affairs, Novartis Pharmaceuticals
ClinicalTrials.gov Identifier:	NCT00439738 History of Changes
Other Study ID Numbers:	CVAH631BUS06
Study First Received:	February 23, 2007
Results First Received:	November 5, 2008
Last Updated:	February 9, 2009
Health Authority:	United States: Food and Drug Administration

Keywords provided by Novartis:


Obesity, hypertension, valsartan/hydrochlorothiazide

Additional relevant MeSH terms:


Hypertension Vascular Diseases Cardiovascular Diseases Hydrochlorothiazide Valsartan Amlodipine Antihypertensive Agents Diuretics Natriuretic Agents	Physiological Effects of Drugs Sodium Chloride Symporter Inhibitors Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action Angiotensin II Type 1 Receptor Blockers Angiotensin Receptor Antagonists Calcium Channel Blockers Vasodilator Agents

ClinicalTrials.gov processed this record on September 30, 2016