Effect of Fluvastatin on Brown Fat Activity (FluvaBAT)

May 28, 2018 updated by: University of Zurich

Short Term Effect of Fluvastatin on Brown Adipose Tissue Thermogenesis and Activity in Humans

The purpose of this study is to elucidate the effects of Fluvastatin on brown adipose tissue activity in humans.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Statins, inhibitors of cholesterol biosynthesis, act by inhibiting the enzyme of the mevalonate pathway. Although the clinical benefits of statins are undisputable, they have been shown to increase insulin resistance and incidence of type 2 diabetes mellitus, the mechanism of which is currently not clear.

The main function of brown adipose tissue (BAT) is non-shivering thermogenesis (i.e. heat production through energy dissipation) in brown adipocytes. There has been a growing interest in BAT as a novel therapeutic approach to increase energy expenditure in order to facilitate weight-loss and increase insulin sensitivity.

BAT activity will be assessed using calorimetric test and [18F]-Fluorodeoxyglucose (FDG) positron emission tomography (PET).

We speculate that statins inhibit BAT function and that this mechanism may contribute to the above mentioned increase in insulin resistance.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
17

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • Switzerland
      • Basel, Switzerland, 4031
        • University Hospital of Basel
    • Zurich
      • Schlieren, Zurich, Switzerland, 8952
        • University Hospital of Zurich, PET/MR Center

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 40 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Male volunteers (18-40 y)
  • body mass index 19 to 27 kg/m²
  • Fluent in German or English

Exclusion Criteria:

  • Regular physical exercise of more than >150 min of exercise per week.
  • Contraindications to the class of drugs under study, e.g. known hypersensitivity or allergy to class of drugs or the investigational product,
  • Other clinically significant concomitant disease states (e.g., renal failure, hepatic dysfunction, cardiovascular disease, etc.),
  • Clinically indicated intake of the following medications: Corticosteroids, CYP3A4-Inhibitors (Itraconazol, Voriconazol, Fluconazol, Clarithromycin, Erythromycin, Indinavir, Nelfinavir, Ritonavir, Grapefruit juice), Beta-Blocker, Neuroleptics, Tricyclic Antidepressants,
  • Known or suspected non-compliance, drug or alcohol abuse,
  • Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant,
  • Participation in another study with investigational drug within the 30 days preceding and during the present study,
  • Participation in another study involving ionizing radiation in the same year,
  • Previous enrolment into the current study,
  • Enrolment of the investigator, his/her family members, employees and other dependent persons,
  • MRI contraindications: Not MRI-compatible metal in the body, cardiac pacemaker, History of surgery with possible metal clips/parts still in the body, claustrophobia.
  • Resting pulse rate > 70 bpm
  • Known arterial hypertension or resting blood pressure > 130/80 mmHg.
  • frequence corrected QT-time (QTc) >430 ms
  • Serum creatinine > 1.5x upper limit of norm (ULN), i.e.> 145 µmol/L
  • creatine kinase > 1.5x ULN, i.e. > 300 U/L
  • aspartate transaminase (ASAT) > 1.5x ULN, i.e. > 51 U/L
  • alanine aminotransferase (ALAT) > 1.5x ULN, i.e. > 88 U/L
  • Hypothyroidism
  • Vitamin D deficiency, Vitamin D3 < 25 nmol/L
  • Intake of anticoagulants or inhibitors of platelet aggregation (e.g. Aspirin, clopidogrel).
  • Known tendency to form keloids (hypertrophic scar tissue)

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: Basic Science
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Experimental
Volunteers receive calorimetric tests and FDG PET scans pre and post 2 weeks of Fluvastatine.
Drug: Fluvastatin
Fluvastatin 40 mg twice daily per mouth for 14 days.
Other Names:
  • Lescol

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
(18)F-FDG uptake in the supraclavicular brown adipose tissue measured by PET by the maximum standardized uptake value (SUVmax)
Time Frame: 14 days
Cold and Mirabegron induced 18F-FDG uptake into the supra-clavicular brown adipose tissue (scBAT) as determined by 18F-FDG PET/MR standardized uptake value (SUVmax) after two weeks of treatment with Fluvastatin.
14 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
The mean standardized uptake value for 18F-FDG uptake (SUVmean) in the supraclavicular adipose tissue depot
Time Frame: 14 days
SUVmean in the supraclavicular adipose tissue depot (analog. SUVmax)
14 days
Volume of supraclavicular BAT
Time Frame: 14 days
Volume of supraclavicular BAT as determined on Magnetic Resonance Imaging (MRI)
14 days
fat fraction with T2 relaxation time of the BAT depot
Time Frame: 14 days
fat fraction with T2 relaxation time of the scBAT depot as determined by MRI
14 days
Cold induced thermogenesis
Time Frame: 14 days
Cold induced thermogenesis: Increase in energy expenditure above resting metabolic rate in response to a mild cold stimulus and pharmacologic stimulation with Mirabegron.
14 days
Supraclavicular skin temperature in response to mild cold stimulus
Time Frame: 14 days
Supraclavicular skin temperature in response to mild cold stimulus measured by local probe
14 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Zurich

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
University of Basel

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Irene A Burger, M.D., University of Zurich

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 31, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 23, 2018

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 19, 2018

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 12, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 13, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 16, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 31, 2018

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 28, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • FluvaBAT

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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