Effect of polymorphic CYP2C19 genotype on the pharmacokinetics and pharmacodynamics of clopidogrel in healthy subjects

ISRCTN ISRCTN39669611
DOI https://doi.org/10.1186/ISRCTN39669611
Secondary identifying numbers PGX-CPG-101
Submission date
31/07/2007
Registration date
17/09/2007
Last edited
24/05/2019
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Prof Ji-Young Park
Scientific

126-1
Anam-dong 5-ga
Sungbuk-gu
Seoul
136-705
Korea, South

Phone +82 2 920 6288
Email jypark21@korea.ac.kr

Study information

Study designOpen-label, parallel, multiple-dose comparative study.
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Scientific titleEffect of polymorphic CYP2C19 genotype on the pharmacokinetics and pharmacodynamics of clopidogrel in healthy subjects
Study objectivesTo evaluate the pharmacogenetic effect of CYP2C19 gene on the Pharmacokinetics (PK) / Pharmacodynamics (PD) of clopidogrel. The original target was the patients with cardiovascular diseases taking clopidogrel. However, due to the limitation of enrollment the trial was conducted with healthy subjects with different CYP2C19 genotype to demonstrate that the effect of clopidogrel varies according to the patient's CYP2C19 genotype.
Ethics approval(s)The Institutional Review Board of Anam Hospital, Korea University College of Medicine, Seoul, Korea, approved on 12 February 2007 (ref: AN-06151-001).
Health condition(s) or problem(s) studiedCardiovascular diseases
InterventionAfter a loading dose of clopidogrel (300 mg; oral), patients will take a standard dose of clopidogrel 75 mg once a day for 6 days.

The following will be carried out:
1. Assessment of PK of clopidogrel and its metabolite SR26334
2. Measurement of the inhibition of ADP induced platelet aggregation by clopidogrel for 15 days
3. Evaluation of CYP2C19 phenotyping test using omperazole hydroxylation as a CYP2C19 probe
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Specified
Drug / device / biological / vaccine name(s)CYP2C19 gene
Primary outcome measureGenetic association with biological effect of clopidogrel.
Secondary outcome measuresPK/PD relationship.
Overall study start date01/03/2007
Completion date31/08/2007

Eligibility

Participant type(s)Patient
Age groupAdult
SexMale
Target number of participants24
Total final enrolment24
Key inclusion criteria1. Healthy male subjects aged between 19 to 55
2. Wish to participate in the study
3. Informed consent for the trial
Key exclusion criteria1. A history of or currently active clinically significant cardiac (including clinically significant abnormalities on Electrocardiogram [ECG] according to Principal Investigator [PI]), pulmonary, gastrointestinal, hepatic, renal, pancreatic, or neurological disease
2. Heavy smoker and alcohol consumer
3. Use of anticoagulants or medication within the last 1 month
Date of first enrolment01/03/2007
Date of final enrolment31/08/2007

Locations

Countries of recruitment

  • Korea, South

Study participating centre

126-1
Seoul
136-705
Korea, South

Sponsor information

Korea University (South Korea)
University/education

126-1
Anam-dong 5-ga
Sungbuk-gu
Seoul
136-705
Korea, South

Phone +82 2 920 5114
Email webmaster@kumc.or.kr
Website http://www.korea.ac.kr/~eng/main.htm
ROR logo "ROR" https://ror.org/047dqcg40

Funders

Funder type

Government

Anam Hospital, Korea University College of Medicine

No information available

The Korea Health 21 Research and Development Project, Ministry of Health and Welfare (South Korea)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/08/2008 24/05/2019 Yes No

Editorial Notes

24/05/2019: Publication reference and total final enrolment added.