The Study of Novel Dual Renin Angiotensin Aldosterone System (RAAS) Blockade; Valsartan/Aliskiren in African American Patients With Hypertension and the Metabolic Syndrome (SAAVE)
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First Received Date ICMJE | September 8, 2011 | ||||
Last Updated Date | August 23, 2012 | ||||
Start Date ICMJE | February 2011 | ||||
Estimated Primary Completion Date | December 2012 (final data collection date for primary outcome measure) | ||||
Current Primary Outcome Measures ICMJE |
Mean Change in SBP from baseline to 10 weeks (2 weeks on initial dose & 6 weeks on higher dose) [ Time Frame: 2 weeks on initial dose & 6 weeks on higher dose ] [ Designated as safety issue: Yes ] | ||||
Original Primary Outcome Measures ICMJE | Same as current | ||||
Change History | Complete list of historical versions of study NCT01432106 on ClinicalTrials.gov Archive Site | ||||
Current Secondary Outcome Measures ICMJE | |||||
Original Secondary Outcome Measures ICMJE | |||||
Current Other Outcome Measures ICMJE | |||||
Original Other Outcome Measures ICMJE | |||||
Descriptive Information | |||||
Brief Title ICMJE | The Study of Novel Dual Renin Angiotensin Aldosterone System (RAAS) Blockade; Valsartan/Aliskiren in African American Patients With Hypertension and the Metabolic Syndrome | ||||
Official Title ICMJE | A Randomized, Double Blind, Active Comparator, Parallel-group Study to Determine Whether the Combination of Valsartan and Aliskiren Provides Cardioprotection in African American Patients With Hypertension and Elements of the Metabolic Syndrome | ||||
Brief Summary | Study purpose: African Americans with hypertension and markers of metabolic syndrome (small elevations in blood glucose, triglycerides and or weight) are at a high risk of cardiovascular (heart and blood vessel) problems. There is a circulating factor called angiotensin II that increases risk and may be more important in African Americans who have up to 20 times greater risk of losing kidney function and requiring dialysis. Research Investigators, including those at the University of Michigan, found one drug (Ramipril) that blocks angiotensin II effects significantly and improves kidney function in African Americans. The purpose of The SAAVE Study is to determine whether the combination of two new blockers (Valsartan and Aliskiren) of angiotensin II, are better able to lower blood pressure, also improve some of the risk factors for cardiovascular problems and provide greater protection to the heart and kidneys. |
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Detailed Description | The specific hypothesis of this proposal is that the combination of Valsartan/Aliskiren will provide incremental reduction in blood pressure when compared to traditional blockade of Renin Angiotensin Aldosterone System (RAAS) with ramipril. As an exploratory analysis, we propose that the blood pressure effect will be associated with suppressing plasma aldosterone levels, preserving the availability of nitric oxide, and preventing the development of insulin resistance. Other variables of interest include changes from baseline in adiponectin, Procollagen 1 and 3, osteopontin, cystatin C, and serum K+. In a nested cohort we will determine the impact of novel dual RAAS blockade on left ventricular remodeling. Should our hypotheses be proven correct and novel dual RAAS blockade is more effective than ramipril in reducing blood pressure, plasma aldosterone, preserving the availability of nitric oxide, as reflected by an increase in asymmetric dimethly arginine (ADMA) levels, and improves cardiovascular remodeling, this would have important implications for the long term prevention of target organ damage and cardiovascular events in this high risk ethnic group. |
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Study Type ICMJE | Interventional | ||||
Study Phase | Phase 1 | ||||
Study Design ICMJE | Allocation: Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor) Primary Purpose: Treatment |
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Condition ICMJE |
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Intervention ICMJE | Drug: Aliskerin/Valsartan and Rampiril
Patients will start on low dose Ramipril 10 mg or Valturna 150/160 at visit 2, and up-titrate to target dose of Ramipril 20 mg or Valturna 300/320 at visit 3. At visit 5, the addition of Hydrochlorothiazide (HCTZ) or amlodipine will be allowed to achieve the SBP target of < 140 mmHg. High dose will then be maintained throughout the remainder of the study. In case of symptoms of low blood pressures, the study medication may be decreased to the low dose. (However, all non-study medication will be manipulated, initially.) Other Names:
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Study Arm (s) |
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Publications * | |||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||
Recruitment Status ICMJE | Suspended | ||||
Estimated Enrollment ICMJE | 100 | ||||
Estimated Completion Date | December 2013 | ||||
Estimated Primary Completion Date | December 2012 (final data collection date for primary outcome measure) | ||||
Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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Gender | Both | ||||
Ages | 18 Years to 80 Years | ||||
Accepts Healthy Volunteers | Yes | ||||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
Location Countries ICMJE | United States | ||||
Administrative Information | |||||
NCT Number ICMJE | NCT01432106 | ||||
Other Study ID Numbers ICMJE | SPP100AUS20T | ||||
Has Data Monitoring Committee | No | ||||
Responsible Party | Kenneth A. Jamerson, University of Michigan Health System | ||||
Study Sponsor ICMJE | University of Michigan Health System | ||||
Collaborators ICMJE | Novartis Pharmaceuticals | ||||
Investigators ICMJE |
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Information Provided By | University of Michigan Health System | ||||
Verification Date | August 2012 | ||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |