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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT00654966
Registration number
NCT00654966
Ethics application status
Date submitted
3/04/2008
Date registered
9/04/2008
Date last updated
20/07/2011
Titles & IDs
Public title
Evaluation of the Effects of Urotensin-II and Soluble Epoxide Hydrolase Inhibitors on Skin Microvessel Tone in Patients With Heart Failure, and in Healthy Volunteers
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Scientific title
Evaluation of the Effects of Urotensin-II and Soluble Epoxide Hydrolase Inhibitors on Skin Microvessel Tone in Patients With Heart Failure, and in Healthy Volunteers.
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Secondary ID [1]
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77/08
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Secondary ID [2]
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CP-02/08
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Heart Failure
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Condition category
Condition code
Cardiovascular
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Coronary heart disease
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Cardiovascular
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Other cardiovascular diseases
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Urotensine II
Treatment: Drugs - Soluble epoxide hydrolase
Experimental: 1 - Heart failure patients
Active comparator: 2 - Healthy subjects
Treatment: Drugs: Urotensine II
A few drops of the drug will be administered to the skin by iontophoresis.
Treatment: Drugs: Soluble epoxide hydrolase
A few drops of the drug will be administered to the skin by iontophoresis.
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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To compare the vasoactive role of Soluble epoxide hydrolase in the healthy subjects and CHF patients with iontophoresis.
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Assessment method [1]
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Timepoint [1]
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2 hours
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Eligibility
Key inclusion criteria
* Confirmed written informed consent.
* Male/Female over 18 and under 80 years of age.
* Females must be non-pregnant, non-lactating and using reliable means of contraception (surgical sterilisation or a barrier method such as a condom). The oral contraceptive pill is an exclusion to this study.
* Patients with CHF will be required to have left ventricular fractional shortening [LVFS] of <22% or LVEF < 40% and New York Heart Association functional class [NYHA FC] II-III symptoms
* Body mass index (BMI) between 18-35 kg/m2.
* Screening clinical laboratory tests including liver function tests and HbA1c are within the normal reference range for the investigative site.
* Electrocardiogram (ECG) results considered within normal limits, as determined by the Investigator.
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Minimum age
18
Years
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Maximum age
80
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
* Smokers
* History or presence of cardiovascular, respiratory, hepatic, renal, gastrointestinal, neurological, or other disorders capable of altering the absorption, metabolism, or elimination of drugs, or of constituting a risk factor when exposed to the study medication.
* Those requiring concomitant medications that will affect cardiovascular or endothelial function or blood pressure control (eg cholesterol lowering medication, hormone replacement therapy, aspirin, NSAIDS).
* Patients receiving Hormone Replacement Therapy.
* Known allergy or hypersensitivity to urotensin or urotensin receptor antagonists or its excipients, or related drugs, or a history of relevant adverse drug reactions of any origin.
* Regular alcohol intake greater than 14 units/week or is unwilling to comply with the alcohol prohibition for the duration of the study (1 unit of alcohol is equivalent to: 12 ounces of beer, 4 ounces of wine, or 1 ounce of 50-proof hard liquor).
* History of drug abuse.
* Screening biochemistry > 20 % outside normal limits.
* Patients who are thought to be terminally ill or immuno-compromised
* Patients who have previously been enrolled in this study or have received other experimental medications in the last 4 weeks.
* Patients who are unlikely to comply with study procedures
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Study design
Purpose of the study
Other
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 2
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/06/2009
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/12/2010
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Sample size
Target
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Accrual to date
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Final
16
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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Alfred Hospital - Melbourne
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Recruitment postcode(s) [1]
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3004 - Melbourne
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Funding & Sponsors
Primary sponsor type
Other
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Name
Monash University
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
Urotensin II (U-II) is newly discovered protein that may play an important role in human health and disease. U-II has been found to be a potent vasoconstrictor (narrower of blood vessels) which therefore may be involved in important diseases such as chronic heart failure - CHF (weak heart muscle disease). Many vasoconstrictors have been found to have effects on key organs such as the heart. Preliminary data by our group have demonstrated this is true of U-II. Recent evidence shows that in CHF, U-II levels in the blood are increased. The proposed study seek to determine the effect of blocking a possible downstream mediator of U-II on blood vessels by administration of soluble epoxide hydrolase inhibitor (sEHI). There will be 2 study groups 1) Healthy volunteers and, 2) CHF patients. Each arm of the study will run independently and will require 16 participants each (16 normal subjects and 16 CHF subjects). Participants will be screened to ensure that they are eligible. CHF patients will be required to withdraw from their CHF medication 24 hours prior to the study day (except for diuretics). On the study day, sEHI will be administered on the skin of participants in 3 asceding dosages. The technique to be used is iontophoresis. This is a non invasive technique in which a small amount of the compound is placed on the skin of the forearm. The drug is delivered across the skin by passing a small electric current over the area. The change in blood flow is then measured and analysed. We will also administer U-II agonist, noradrenaline, and distilled water (all via iontophoresis). Noradrenaline will be used a positive constrictor control. Change in blood flow will be assessed by Laser Doppler Velocimetry. If it is found that the sEHI is able to prevent blood vessel constriction in CHF patients, then it may represent a major therapeutic advance in the management of CHF.
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Trial website
https://clinicaltrials.gov/study/NCT00654966
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Henry Krum, MBBS FRACP PhD
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Address
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Monash University / Alfred Hospital
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Fax
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Email
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Contact person for public queries
Name
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Address
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Fax
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Email
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Contact person for scientific queries
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT00654966
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