AzTrials
AzTrials

Coronary Heart DiseasePhase 1ECGPPANCT00973986

Effect of CYP3A Genetic Polymorphisms on the Pharmacokinetics of Atorvastatin

A Phase 1 study testing Atorvastatin in people with Coronary Heart Disease, run by Liuhuaqiao Hospital at 1 site in China.

Completed

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

Official record
Search all trials

Trial summary

The aim of the study is to investigate the effects of CYP3A polymorphisms on the pharmacokinetics of Atorvastatin in Chinese subjects with coronary heart disease. Read more about this study

Who is it for?
Ages 35 to 65 years, men only
Conditions the study is for
Coronary Heart Disease
What is being tested?
Atorvastatin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteChina
Study dates
Jun 2009to Mar 2011
Phase
Phase 1
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 35 to 65 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects must demonstrate their willingness to participate in the study and comply with its procedures by signing a written informed consent.
  • Subjects must be >=35 years and <=70 years of age.
  • Subjects must have an LDL-C concentration >=2.6 mmol/L and TC concentration >=4.14 mmol/L
  • Body mass index (BMI) must be within the range of 19 to 30 for patients.
  • Subjects must have documented coronary heart disease with one or more of the following features:
  • Documented stable angina (with evidence of ischemia on exercise testing)
Show all 9Show fewer
  • History of myocardial infarction
  • History of percutaneous coronary intervention (with or without stent placement)
  • Documented history of unstable angina or non-Q wave myocardial infarction.

Who cannot join

  • Diabetes and endocrine or metabolic disease.
  • Congestive heart failure defined by New York Heart Association (NYHA) as Class III or IV.
  • Uncontrolled cardiac arrhythmia.
  • Uncontrolled hypertension (Systolic BP >160 mm Hg and/or Diastolic BP >100 mmHg on two consecutive measurements).
  • Liver or kidney disease confirmed by abnormal lab values or function.
  • Smokers who report cigarette use of more then 10 cigarette per day.
Show all 12Show fewer
  • Subjects who consume >2 alcoholic drinks a day. (A drink is: a can of beer, glass of wine, or single measure of spirits).
  • Known human immunodeficiency virus (HIV) positive.
  • Cancer.
  • Subjects who are on any of the following concomitant medications:
  • Medications that are potent inhibitors of CYP3A, including cyclosporine, itraconazole, fluconazole, and ketoconazole, erythromycin or clarithromycin, nefazodone, protease inhibitors,mibefradil and large amounts of grapefruit juice (>1 quart/day).
  • Lipid-lowering agent: niacin (>200 mg/day) taken within 5 weeks, fibric acid derivatives taken within 8 weeks.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Guangzhou General Hospital of Guangzhou Military Command

    Guangzhou, Guangdong, 510010

Other trials in China

About this study

Official title: Study the Effect of CYP3A Genetic Polymorphisms on the Pharmacokinetics of Atorvastatin in Chinese Subjects With Coronary Heart Disease

The aim of the study is to investigate the effects of CYP3A polymorphisms on the pharmacokinetics of Atorvastatin in Chinese subjects with coronary heart disease.

Read the detailed description

Large variability exists in the individual response to statins. CYP3A polymorphisms likely contribute to variable response to those drugs primarily metabolized by CYP3A including atorvastatin.

Being tested
Atorvastatin
Keywords
atorvastatin, genetic polymorphisms, coronary heart disease, pharmacokinetics, CYP3A
Medical subject headings
Coronary Disease

What participants receive

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

  • AtorvastatinDrug

    Also called Lipitor, Atorvastatin Calcium Tablets

    The subjects will receive atorvastatin (20 mg single dose) orally with approximately 240 ml of water. Blood samples(4 mL) will be taken prior to dosing and at 0.33, 0.66, 1, 1.5, 2, 2.5, 3, 4, 6, 9, 12, 24 and 48 h after drug administration.

Study groups in NCT00973986
Study groupRoleWhat they receive
CYP3A4*1/*1Active comparatorNot described
Receives: Drug: Atorvastatin
CYP3A4*1/*1GActive comparatorNot described
Receives: Drug: Atorvastatin
CYP3A4*1G/*1GActive comparatorNot described
Receives: Drug: Atorvastatin

What is being measured

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

  1. Compare the area under the plasma concentration versus time curve (AUC) and Area under the plasma concentration versus time curve (AUC) of atorvastatin with different CYP3A4*1G genotypes.

    Measured: 48h

Secondary outcomes (1)
  1. The pharmacokinetics of atorvastatin in Chinese with coronary heart disease.

    Measured: 48h

Timeline

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

  1. First posted9 Sep 2009 (estimated)
  2. Study startJun 2009
  3. Primary completionDec 2010
  4. Study completionMar 2011

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00973986
Sponsor's protocol ID
YWLCSY-0900328
Other IDs
08110831, GZJQZYY-003, ATR-01, GD080625, 20081001
Acronym
ECGPPA
Status last verified
Sep 2009
First submitted
4 Sep 2009
Last updated
29 Nov 2011
Results posted
No
Data monitoring committee
Yes

Publications

  • He BX, Shi L, Qiu J, Zeng XH, Zhao SJ. The effect of CYP3A4*1G allele on the pharmacokinetics of atorvastatin in Chinese Han patients with coronary heart disease. J Clin Pharmacol. 2014 Apr;54(4):462-7. doi: 10.1002/jcph.229. Epub 2013 Nov 27.

    PubMed 24214373

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Atorvastatin in people with Coronary Heart Disease, run by Liuhuaqiao Hospital at 1 site in China.

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 9 inclusion and 12 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 29 Nov 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Compare the area under the plasma concentration versus time curve (AUC) and Area under the plasma concentration versus time curve (AUC) of atorvastatin with different CYP3A4*1G genotypes. (time frame: 48h). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00973986, which also lists 1 linked publication.

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 29 Nov 2011.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in