The Effect of a Peroxisome Proliferator-activated Receptor (PPAR) Alpha Agonist on Cytochrome P450 (CYP) Monooxygenase Activity in Humans
The Effect of a PPAR Alpha Agonist on CYP Monooxygenase Activity in Humans
2 other identifiers
interventional
75
1 country
1
Brief Summary
The hypothesis is to test to see if the drug fenofibrate will increase important chemicals in the body and specifically in the kidney, help to rid the body of salt by the kidneys, decrease blood pressure and improve insulin sensitivity during high-salt intake in individuals with hypertension.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4 hypertension
Started Sep 2009
Typical duration for phase_4 hypertension
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
First Submitted
Initial submission to the registry
March 26, 2009
CompletedFirst Posted
Study publicly available on registry
March 31, 2009
CompletedStudy Start
First participant enrolled
September 1, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2012
CompletedResults Posted
Study results publicly available
June 20, 2013
CompletedJune 28, 2013
June 1, 2013
2.3 years
March 26, 2009
February 26, 2013
June 19, 2013
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in Blood Pressure During High Salt Intake and Fenofibrate Treatment Compared to High Salt Intake and Placebo Treatment
Difference in blood pressure (mean arterial pressure) measured on the last day of high salt intake and fenofibrate treatment minus blood pressure (mean arterial pressure) measured during high salt intake and placebo treatment in participants classified as being salt-sensitive versus salt-resistant. Participants were classified as salt-sensitive if the average study day mean arterial pressure (MAP) was at least 5 mmHg higher during the high salt placebo arm than during low salt intake.
pressure measured on day 6 of high salt fenofibrate minus pressure measured on day 6 of high salt placebo
Secondary Outcomes (1)
HDL-cholesterol Measured During High Salt Fenofibrate in Salt-resistant and Salt-sensitive Hypertension
Measured on day 6 of high salt intake and fenofibrate treatment
Study Arms (2)
Placebo, then fenofibrate
PLACEBO COMPARATORRandomized study of fenofibrate versus placebo during high salt diet
Fenofibrate, then placebo
PLACEBO COMPARATORRandomized study of fenofibrate versus placebo during high salt intake.
Interventions
Subjects will be randomized to receive either fenofibrate 160 mg/day or matching placebo for five days by mouth.
Subjects will be randomized to receive placebo or fenofibrate for five days by mouth
Eligibility Criteria
You may qualify if:
- Ambulatory subjects, 18-70 years of age, inclusive
- For female subjects, the following conditions must be met Postmenopausal status for at least 1 year, or Status post surgical sterilization, or If of childbearing potential, utilization of adequate birth control and willingness to undergo urine beta-hcg testing prior to drug treatment and on every study day
You may not qualify if:
- Secondary causes of hypertension
- Diabetes type 1 or type 2 as defined by a fasting glucose of 126 mg/dl or greater or the use of anti-diabetic medication
- Use of hormone replacement therapy
- Statin or fibrate therapy
- A seated systolic blood pressure(SBP) greater than 179 mmHg or a seated diastolic blood pressure(DBP) greater than 110 mmHg
- Pregnancy
- Breast-feeding
- Cardiovascular disease such as history of myocardial infarction, presence of angina pectoris, significant arrhythmia, congestive heart failure, (LV hypertrophy acceptable), deep vein thrombosis, pulmonary embolism, second or third degree heart block, mitral valve stenosis, aortic stenosis or hypertrophic cardiomyopathy
- Treatment with anticoagulants
- History of serious neurologic diseases such as cerebral hemorrhage,stroke, or transient ischemic attack
- History or presence of immunological or hematological disorders
- Diagnosis of asthma
- Clinically significant gastrointestinal impairment that could interfere with drug absorption
- Impaired hepatic function (aspartate aminotransferase \[AST\] and or alanine aminotransferase \[ALT\] \> 2.0 x upper range)
- Known preexisting gallbladder disease
- +9 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Vanderbilt Universitylead
- National Institutes of Health (NIH)collaborator
Study Sites (1)
Vanderbilt University
Nashville, Tennessee, 37232, United States
Related Publications (2)
Gilbert K, Nian H, Yu C, Luther JM, Brown NJ. Fenofibrate lowers blood pressure in salt-sensitive but not salt-resistant hypertension. J Hypertens. 2013 Apr;31(4):820-9. doi: 10.1097/HJH.0b013e32835e8227.
PMID: 23385647RESULTRamirez CE, Shuey MM, Milne GL, Gilbert K, Hui N, Yu C, Luther JM, Brown NJ. Arg287Gln variant of EPHX2 and epoxyeicosatrienoic acids are associated with insulin sensitivity in humans. Prostaglandins Other Lipid Mediat. 2014 Oct;113-115:38-44. doi: 10.1016/j.prostaglandins.2014.08.001. Epub 2014 Aug 28.
PMID: 25173047DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Nancy J. Brown, M.D.
- Organization
- Vanderbilt University
Study Officials
- PRINCIPAL INVESTIGATOR
Nancy J Brown, MD
Vanderbilt University Medical Center
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Medicine
Study Record Dates
First Submitted
March 26, 2009
First Posted
March 31, 2009
Study Start
September 1, 2009
Primary Completion
January 1, 2012
Study Completion
January 1, 2012
Last Updated
June 28, 2013
Results First Posted
June 20, 2013
Record last verified: 2013-06