Efficacy of Provex CV Supplement to Reduce Inflammation Cytokines and Blood Pressure
A Double-Blind, Placebo-Controlled, Crossover Evaluation of a Grape Seed Extract and Quercetin Supplement (Provex CV) to Reduce Markers of Inflammatory Cytokines and Blood Pressure in Subjects With Metabolic Syndrome
1 other identifier
interventional
20
1 country
1
Brief Summary
The purpose of this study is to determine if a supplement called Provex CV can reduce blood pressure and other risk factors for heart disease. Heart disease is the leading cause of death in this country and it is important to identify dietary factors, including supplements, that can reduce heart disease risk factors. The supplement to be tested in this study is made of a combination of natural compounds found in plants such as grapeseed extract, green tea, and quercetin. Each compound individually has been shown to improve blood pressure or reduce inflammation. We hypothesize that Provex CV will reduce blood pressure and levels of inflammatory cytokines hypertensive patients with symptoms of metabolic syndrome. This investigational trial of Provex CV has been approved by the United States Food and Drug Administration.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Mar 2010
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 1, 2010
CompletedFirst Submitted
Initial submission to the registry
April 15, 2010
CompletedFirst Posted
Study publicly available on registry
April 19, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2011
CompletedJanuary 14, 2015
January 1, 2015
1.6 years
April 15, 2010
January 13, 2015
Conditions
Outcome Measures
Primary Outcomes (1)
Blood pressure
4 weeks after supplement or placebo
Study Arms (2)
Arm 1
EXPERIMENTALParticipants will consume 330 mg of Provex CV supplement, by mouth, per day, for 4 weeks followed by 4 weeks of 330 mg of placebo (cornstarch)
Arm 2
EXPERIMENTALParticipants will consume 330 mg placebo (cornstarch), by mouth, per day for 4 weeks followed by 4 weeks of 330 mg of ProvexCV for 4 weeks.
Interventions
Eligibility Criteria
You may qualify if:
- Males (18 - 65) and postmenopausal females (up to age 65) with metabolic syndrome who have stage 1 hypertension.
- Since all subjects will have Stage 1 hypertension, they must also meet at least 2 of the following criteria of metabolic syndrome to qualify for the study; waist circumference of \>35 inches for women or \>40 inches in men, fasting plasma triglycerides of \>150 mg/dl, fasting glucose of \>100 mg/dl, HDL of \<40 in men. Pre-hypertension or greater (130 + mm Hg systolic/80+mm Hg diastolic) is defined by the 7th Report for the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure.
You may not qualify if:
- Subjects who are allergic to tea or grapes (on which the supplement is based).
- Participants who have blood pressure less than 130 mmHg / 80 mmHg,
- have a history of a prior cardiovascular event, diabetes, pregnancy, liver disease, renal insufficiency, any chronic disease that might interfere with study participation,
- BMI above 40 kg/m2,
- consumption of \>12 alcoholic drinks weekly,
- unwillingness to stop current supplement intake or use of calcium/ magnesium antacids.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Utah
Salt Lake City, Utah, 84112, United States
Related Publications (1)
Biesinger S, Michaels HA, Quadros AS, Qian Y, Rabovsky AB, Badger RS, Jalili T. A combination of isolated phytochemicals and botanical extracts lowers diastolic blood pressure in a randomized controlled trial of hypertensive subjects. Eur J Clin Nutr. 2016 Jan;70(1):10-6. doi: 10.1038/ejcn.2015.88. Epub 2015 Jun 10.
PMID: 26059745DERIVED
Study Officials
- PRINCIPAL INVESTIGATOR
Thunder Jalili, Ph.D.
University of Utah
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 15, 2010
First Posted
April 19, 2010
Study Start
March 1, 2010
Primary Completion
October 1, 2011
Study Completion
October 1, 2011
Last Updated
January 14, 2015
Record last verified: 2015-01