- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00525681
Interaction Between Rimonabant and Cyclosporine and Tacrolimus (RIMONA-PILOT)
December 2, 2014 updated by: University of Oslo School of Pharmacy
The Effect of Rimonabant Treatment on Cardiovascular Risk Factors in Renal Transplant Recipients -- Pilot Safety Study
The major cause of premature death in renal transplant recipients is cardio-vascular disease.
In addition, obesity is becoming a major problem in this patient population.
Rimonabant does not only seem to have weight reducing properties but also weight reduction independent effects on insulin sensitivity and endothelial function, two important cardio-vascular risk factors.
Rimonabant therefore is an interesting drug for the treatment of transplanted patients.
Present data also indicate that rimonabant does not interact with essential immunosuppressive drugs (CsA and Tac) indicating that it most probably is safe to administer to this patient population.
However this needs to be investigated in a proper manner.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Renal transplant recipients are treated with life-long immunosuppressive therapy in order to prevent acute rejection episodes.
The calcineurin inhibitors (CsA and Tac) are the back-bones in the immunosuppressive treatment and they have a very narrow therapeutic index.
It is therefore essential to assure that new drug to be used in transplanted patients do not interact with CsA and Tac.
Even though rimonabant is metabolized via the same enzyme as CsA and Tac (CYP3A4) previous in vitro and in vivo studies with relevant probe drugs in healthy volunteers do not indicate the presence of any relevant pharmacokinetic interaction.
However, to be absolutely sure that it is safe to administer rimonabant in transplanted patients a 12-hour pharmacokinetic interaction investigation is included for 16 patients in the present pilot study (8 patients on CsA and 8 patients on Tac).
Study Type
Interventional
Enrollment (Actual)
18
Phase
- Phase 4
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Oslo, Norway, 0027
- Rikshospitalet, Section of Nephrology
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Renal transplant recipient with stable renal function (less than 20% deviation in serum creatinine the last 2 months).
- Renal transplant recipient currently on CsA or Tac and prednisolone based immunosuppression.
- BMI > 30 kg/m2 or >27 kg/m2 in combination with one or more cardio-vascular risk factors.
- > 18 years of age.
- Male patient, or female patient without childbearing potential (surgically sterilized or postmenopausal) or, if female of childbearing potential, is not lactating, has a negative pregnancy test at screening and is willing to utilize an effective method of contraception throughout the study period and for 90 Days following discontinuation of the Study Drugs.
- Signed informed consent.
Exclusion Criteria:
- Diabetes mellitus
- Severe liver disease.
- Depressive-, anxiety- or sleeping disorders.
- Estimated GFR < 25 ml/min.
- Epilepsy.
- Skin disorders that may influence laser Doppler flowmetry investigations.
- Pregnant or nursing mothers.
- Concomitant treatment with CYP3A4 inhibitors (www.cyp450.no) with interaction potential according to the investigator.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: CsA
Investigation of systemic exposure of cyclosporine before and after 2 moths of co-adminiastration of rimonabant.
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Cyclosporine is dosed twice daily and is individualized as per center practice and kept stable during the study.
Other Names:
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Other: Tac
Investigation of systemic exposure of tacrolimus before and after 2 moths of co-adminiastration of rimonabant.
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Dosing of tacrolimus is given twice daily and individualized as per center practice.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Effect of rimonabant on cylosporine/tacrolimus bioavailablility
Time Frame: 2 months
|
2 months
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Effect of rimonabant on insulin sensitivity
Time Frame: 2 months
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2 months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Study Chair: Anders Åsberg, Ph.D., Scholl of Pharmacy, University of Oslo
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
September 1, 2007
Primary Completion (Actual)
May 1, 2008
Study Completion (Actual)
May 1, 2008
Study Registration Dates
First Submitted
September 5, 2007
First Submitted That Met QC Criteria
September 5, 2007
First Posted (Estimate)
September 6, 2007
Study Record Updates
Last Update Posted (Estimate)
December 3, 2014
Last Update Submitted That Met QC Criteria
December 2, 2014
Last Verified
December 1, 2014
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- RIMONA-PILOT
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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