This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Influence of CYP2C19 Genotype on the Pharmacokinetics (PK) of Voriconazole

This study has been completed.
Information provided by:
Seoul National University Hospital Identifier:
First received: July 14, 2009
Last updated: March 2, 2010
Last verified: March 2010

The purpose of this study is to:

  • Evaluate the influence of CYP2C19 genotype on PK profiles of voriconazole.

Condition Intervention Phase
Healthy Drug: Voriconazole Phase 1

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Official Title: Clinical Trials to Evaluate the Influence of CYP2C19 Genotype and Drug-drug Interactions on the Pharmacokinetics of Voriconazole in Healthy Korean Male Volunteers (Part A)

Resource links provided by NLM:

Further study details as provided by Seoul National University Hospital:

Primary Outcome Measures:
  • Plasma concentration of voriconazole

Secondary Outcome Measures:
  • Adverse events collected by investigator questionnaire and subjects spontaneous report
  • 12-lead ECG
  • Clinical laboratory test
  • Vital signs

Enrollment: 18
Study Start Date: December 2008
Study Completion Date: March 2009
Primary Completion Date: March 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: CYP2C19 extensive metabolizer Drug: Voriconazole
Active Comparator: CYP2C19 heterozygous extensive metabolizer Drug: Voriconazole
Active Comparator: CYP2C19 poor metabolizer Drug: Voriconazole


Ages Eligible for Study:   20 Years to 50 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  1. Healthy male subjects aged 20 - 50 years.
  2. A body mass index (BMI) in the range 17-28 kg/m2.
  3. Sufficient ability to understand the nature of the study and any hazards of participating in it. Provide written informed consent after being fully. informed about the study procedures.

Exclusion Criteria:

  1. Presence or history of severe adverse reaction to any drug or a history of severe allergic disease.
  2. Clinically relevant abnormal medical history that could interfere with the objectives of the study.
  3. Presence or history of eye disease or eye field defect.
  4. A subject with history of gastrointestinal disease or surgery (except simple appendectomy or repair of hernia), which can influence the absorption of the study drug.
  5. A subject whose liver function test (AST, ALT, GGT, ALP, LDH) result is over 1.25 times of upper limit of normal range.
  6. A subject whose SBP is over 140 mmHg or below 90 mmHg and DBP is over 100 mmHg or below 50 mmHg.
  7. Presence or history of drug abuse.
  8. Participation in other clinical trial within 2 months.
  9. Use of a prescription medicine, herbal medicine within 2 weeks or over-the-counter medication within 1 week before first dose.
  10. Blood donation during 2 months or apheresis during 1 month before the study.
  11. Presence or history of alcohol abuse.
  12. Smoking of more than 10 cigarettes/day.
  13. Use of grapefruit juice, xanthine containing beverage, alcohol or smoking during restriction period.
  14. Subject judged not eligible for study participation by investigator.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00942773

Korea, Republic of
Seoul National University Hospital Clinical Trial Center
Seoul, Korea, Republic of, 110-744
Sponsors and Collaborators
Seoul National University Hospital
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: In-Jin Jang, Seoul National University Hospital Identifier: NCT00942773     History of Changes
Other Study ID Numbers: SNUCPT09_Vori2C19_A
Study First Received: July 14, 2009
Last Updated: March 2, 2010

Keywords provided by Seoul National University Hospital:
Healthy volunteer

Additional relevant MeSH terms:
Antifungal Agents
Anti-Infective Agents
14-alpha Demethylase Inhibitors
Cytochrome P-450 Enzyme Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Steroid Synthesis Inhibitors
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Cytochrome P-450 CYP3A Inhibitors processed this record on September 21, 2017