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ToxicityNCT00890448

Case Control Study of Pharmacogenomic Factors Associated With Hepatocellular Injury Following Exposure to Lapaquistat Acetate

An observational study of Toxicity, run by Takeda at 19 sites in 14 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to examine the genetic contribution to the mechanism of lapaquistat acetate- induced hepatic abnormalities. Read more about this study

Who is it for?
Any age
Conditions the study is for
Toxicity
What is being tested?
Pharmacogenomic whole blood sampling
How many people
66 participants
Where
19 sitesin 14 countries
Study dates
May 2009to May 2010
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Subjects who participated in lapaquistat acetate phase 2 and phase 3 clinical studies

Who may be able to join

  • Has experienced an alanine aminotransferase level greater than or equal to 5 times the upper limit of normal, or concurrent elevation of alanine aminotransferase greater than or equal to 3 times the upper limit of normal and bilirubin greater than or equal to 2 times the upper limit of normal while participating in lapaquistat acetate clinical studies.

Who cannot join

  • None

Trial locations and contacts

19 sites in 14 countries.

19 sites in 14 countries

United States4 sites
  • Study site

    Idaho Falls, Idaho

  • Study site

    Jacksonville, Florida

  • Study site

    Jupiter, Florida

  • Study site

    Richmond, Virginia

Other trials in United States

Canada2 sites
  • Study site

    Québec

  • Study site

    Sainte-Foy

Other trials in Canada

Russia2 sites
  • Study site

    Moscow

  • Study site

    Saratov

Other trials in Russia

Argentina1 site
  • Study site

    Córdoba

Other trials in Argentina

Chile1 site
  • Study site

    Santiago

Other trials in Chile

Czechia1 site
  • Study site

    Havírov-Šumbark

Other trials in Czechia

Finland1 site
  • Study site

    Oulu

Other trials in Finland

Germany1 site
  • Study site

    Nuremberg

Other trials in Germany

Latvia1 site
  • Study site

    Riga

Other trials in Latvia

Netherlands1 site
  • Study site

    Groningen

Other trials in Netherlands

Poland1 site
  • Study site

    Gdansk

Other trials in Poland

Slovakia1 site
  • Study site

    Žilina

Other trials in Slovakia

South Africa1 site
  • Study site

    Johannesburg

Other trials in South Africa

United Kingdom1 site
  • Study site

    Glasgow, Scotland

Other trials in United Kingdom

About this study

Official title: A Modified Case Control Study to Identify Pharmacogenomic Factors Associated With Hepatocellular Injury Following Exposure to Lapaquistat Acetate

The purpose of this study is to examine the genetic contribution to the mechanism of lapaquistat acetate- induced hepatic abnormalities.

Read the detailed description

This is a modified case control study to investigate the association of genotype with phenotype in subjects who experienced alanine aminotransferase and bilirubin derangements following exposure to lapaquistat acetate.

The DNA profile of subjects who experienced significant biochemical hepatic derangement following exposure to lapaquistat acetate (cases) will be compared with a population of pre-genotyped untreated individuals (controls) from a public database. The DNA from subjects who had hepatic derangement during lapaquistat acetate studies, in the absence of exposure to lapaquistat acetate, will be stored. If data from the subjects exposed to lapaquistat acetate indicates that there is a genetic marker of interest, the stored DNA from non-exposed subjects will be assayed to further investigate the signal. One 10 mL sample of whole blood will be collected in plastic K2EDTA tube, after informed consent has been obtained.

Each subject will sign the informed consent document prior to undergoing the study-related procedure. One 10 mL sample of whole blood will be collected from each subject. Extracted DNA will be analyzed using a whole genome scan approach as well as a candidate gene approach.

Conditions
Toxicity
Being tested
Pharmacogenomic whole blood sampling
Keywords
Alanine Transaminase elevation, Genetic Markers, DNA Markers

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Pharmacogenomic whole blood samplingOther

    Also called TAK-475

    10 mL, whole blood, one sample on Visit 2

Study groups in NCT00890448
Study groupRoleWhat they receive
Lapaquistat acetate participantsNot described
Receives: Other: Pharmacogenomic whole blood sampling

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Whole genome scanning using the Illumina 1M chip.

    Measured: Visit 2

  2. Whole genome scanning using the Affymetrix 500K array chip.

    Measured: Visit 2

  3. Candidate gene scanning using the Affymetrix Drug Metabolizing Enzymes and Transporter (DMET) array.

    Measured: Visit 2

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Apr 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionMay 2010
  4. Study completionMay 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Enrolment
66 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00890448
Sponsor's protocol ID
TAK-475_310
Other IDs
2008-006906-41, U1111-1112-3768, DOH-27-0410-2857, 2008
Status last verified
May 2012
First submitted
27 Apr 2009
Last updated
24 May 2012
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Toxicity, run by Takeda at 19 sites in 14 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 May 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 19 sites in United States, Canada, Russia, Argentina, Chile and 9 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Whole genome scanning using the Illumina 1M chip. (time frame: Visit 2). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 May 2012.

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