Lipid-lowering Therapy Individualization

August 30, 2019 updated by: Laure Elens, Université Catholique de Louvain
This clinical study will explore individual factors influencing statin pharmacokinetics in a cohort of 150 patients treated with atorvastatin.

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

Atorvastatin is widely prescribed for the treatment of hypercholesterolemia to prevent the risk of cardiovascular diseases, a leading death cause in industrialized countries. There exists considerable inter-individual variability in response to statins, reflected by differences in lipid-lowering effect or risk of presenting adverse drug reaction; mainly myotoxicity. A plethora of different factors (demographic, genetic, physiopathologic, environmental...) have been tested to explain this variability but it lacks of pharmacokinetic (PK) data and/or replications of observations are rare and results remain inconclusive, probably because of non-adapted designs and no-clear driven-hypothesis but also due to a lack of scientific rationale and deep mechanistic understanding. This clinical study will explore individual factors influencing statin PK in a cohort of 150 patients treated with atorvastatin. The collection of meticulous clinical PK data and a rigorous statistical analysis will allow quantifying the effect of each identified parameter on statin PK and eventually, defining a population-based PK model taking into account the combined effect of all covariates in a quantitative approach. This innovative prospectively designed clinical study will ultimately allow predicting atorvastatin PK fluctuations and anticipating any inadequate dosing in clinical care.

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.
75

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

  • Belgium
      • Brussels, Belgium, 1200
        • Cliniques Universitaires Saint-Luc

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Treatment with atorvastatin (any dose)

Exclusion Criteria:

  • Unable to provide informed consent

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: Other
  • Allocation: N/A
  • Interventional Model: Single Group 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.
Other: Atorvastatin
All patients using atorvastatin at any dose (usually ranging from 5 to 80 mg once-daily).
Drug: Atorvastatin
Blood sampling for atorvastatin quantification and pharmacogenetic analysis.

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
Atorvastatin population pharmacokinetics
Time Frame: 18 months
Concentrations of atorvastatin acid (pmol/ml) will be measured by HPLC-MS using sparse samples obtained over the entire study period. Data will be pooled and analyzed using population pharmacokinetic modeling. The reported pharmacokinetic parameters will depend on the type of model that best fits the data.
18 months
Atorvastatin metabolites population pharmacokinetics
Time Frame: 18 months
Concentrations of ortho-hydroxyatorvastatin (pmol/ml), para-hydroxyatorvastatin (pmol/ml) and atorvastatin lactone (pmol/ml) will be measured by HPLC-MS using sparse samples obtained over the entire study period. Data will be pooled and analyzed using population pharmacokinetic modeling. The reported pharmacokinetic parameters will depend on the type of model that best fits the data.
18 months

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
Cholesterol
Time Frame: 18 months
Measurement of total cholesterol, LDL cholesterol and HDL cholesterol at each visit
18 months
Creatine kinase
Time Frame: 18 months
Measurement of creatine kinase at each visit
18 months
Occurrence of adverse drug events
Time Frame: 18 months
Reports of adverse drug events will be recorded at each visit using a standardized questionnaire that includes the following categories : muscle cramps (grade 1 to 5), muscle pain (graded 1 to 5), rhabdomyolysis, gastro-intestinal side effects (Nauseas, diarrhea or vomitus), other side effects.
18 months
Pharmacogene genotype
Time Frame: 18 months
Patients will be genotyped for single nucleotide polymorphisms of interest in the following genes : ABCB1, ABCC1, ABCC2, ABCC4, ABCC5, ABCG2, CYP3A4, CYP3A5, NR1I2, POR, PPARalpha, SLCO1B1, SLCO2B1, SLCO3A1.
18 months
Triglycerides
Time Frame: 18 months
Measurement of triglyceride levels at each visit
18 months

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.
Université Catholique de Louvain

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.
Cliniques universitaires Saint-Luc- Université Catholique de Louvain

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: Jean-Luc Balligand, MD, PhD, Cliniques Universitaires Saint-Luc

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.
August 8, 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.
August 27, 2019

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.
August 27, 2019

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 27, 2018

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.
July 19, 2018

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.
July 27, 2018

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.
September 3, 2019

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.
August 30, 2019

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.
August 1, 2019

More Information

Terms related to this study

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.
  • 2016/26OCT/471

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

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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