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Identification and Evaluation of Endogenous Markers for the Assessment of CYP3A Activity

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01760642
Recruitment Status : Completed
First Posted : January 4, 2013
Last Update Posted : May 26, 2014
Information provided by (Responsible Party):
Joo-Youn Cho, Seoul National University Hospital

Brief Summary:
Identification and evaluation of endogenous markers for the assessment of CYP3A activity in female subjects using metabolomics

Condition or disease Intervention/treatment Phase
Healthy Drug: Midazolam Drug: Ketoconazole Drug: Rifampicin Phase 1

Detailed Description:
Eligibility for participation of this study will be determined from demographic information, medical history, physical examination, electrocardiogram(ECG) and clinical laboratory tests within 3 weeks before study drug administration. Subjects suitable for this study will be admitted to the Clinical Trials Center, Seoul National University Hospital on the day before dosing, and they will be overnight-fasted from 9 p.m. of Day -1. Urine collection is scheduled from 24 hours before midazolam administration to 24 hours after administration. Subjects will be dosed midazolam by intravenous around at 9 a.m. of Day 1. Subjects will perform scheduled procedures including clinical laboratory tests, electrocardiograms and pharmacokinetic samplings. Subjects will be discharged on Day 2 and visit the Clinical Trials Center for period 2, ketoconazole administration. After 3 days of ketoconazole administration, midazolam will be dosed with ketoconazole on Day 4 of period 2. Subjects will perform scheduled procedure and on period 3 rifampicin will be dosed for 9 days and on Day 10 of period 3 midazolam will be dosed with rifampicin. After subjects perform scheduled procedure, the study will be terminated 6-8 days after the end of period 3.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 16 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Identification and Evaluation of Endogenous Markers for the Assessment of CYP3A Activity in Female Subjects Using Metabolomics
Study Start Date : December 2012
Actual Primary Completion Date : September 2013
Actual Study Completion Date : September 2013

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Midazolam

period 1: midazolam 1 mg IV single dose administration. period 2: midazolam 1 mg IV single dose after ketoconazole 400 mg oral dosing for 3 days.

period 3: midazolam 2.5 mg IV single dose after rifampicin 600 mg oral dosing for 10 days.

Drug: Midazolam
Midazolam 3 mg IV
Other Name: Midazolam (Bukwang Pharm.Co., Ltd.)

Drug: Ketoconazole
ketoconazole 400 mg PO
Other Name: Kaszole (Skynewpharm Inc.)

Drug: Rifampicin
Rifampicin 600 mg PO
Other Name: Rifampin (Yuhan Corp.)

Primary Outcome Measures :
  1. Metabolomic profile [ Time Frame: -24--12h, -12-0h of every midazolam dosing ]
    endogenous metabolite profiles such as steroid

Secondary Outcome Measures :
  1. Pharmacokinetics [ Time Frame: 0h, 10m, 20m, 30m, 45m, 1h, 2h, 3h, 4h, 6h, 8h, 12h, 24h of every midazolam dosing ]
    Cmax, AUClast of midazolam

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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

Inclusion Criteria:

  • Age: Between 20 to 50 years of age, inclusive
  • Weight: Between 45 to 95 kg, within 17 - 28 of Body Mass Index
  • Menstruation cycle between 21 to 35 without contraceptive
  • Subject who agree contraception during the study
  • Subject who are reliable and willing to make themselves available during the study period, are willing to follow the study protocol, and give their written informed consent voluntarily

Exclusion Criteria:

  • History of hypersensitive reaction to medication (midazolam, ketoconazole, rifampicin)
  • History of significant clinical illness needs medical caution, including cardiovascular, immunologic, hematologic, neuropsychiatric, respiratory, gastrointestinal, hepatic, or renal disease or other chronic disease history or evidence of drug abuse
  • A subject whose lab test results are as follows; Liver function test (AST, ALT, GGT, ALP, LDH, Total bilirubin) > 1.25 X upper limit of reference range
  • A subject whose SBP is over 140 mmHg or below 90 mmHg and DBP is over 100 mmHg or below 50 mmHg
  • Presence or history of drug abuse or positive result in urine drug screening test
  • Blood donation during 2 months or apheresis during 1 month before the study
  • Use any prescriptive medication, Korean traditional medication not considered acceptable by the clinical investigator during the last 14 days period before first dosing, or use any OTC medication not considered acceptable by the clinical investigator during the last 7 days period before first dosing (if used medication is considered acceptable by investigator, patients can be included)
  • Use of alcohol over 21 units/weeks
  • Smoker who smoke more than 10 cigarettes per day
  • Participation in clinical trials of any drug within 60 days prior to the participation of the study
  • Use of grapefruit juice within 1 week before first dose
  • Use of caffeine drink within 3 days before first dose
  • Subject pregnant or breast-feeding
  • Judged to be inappropriate for the study by the investigator

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01760642

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Korea, Republic of
Seoul National Universtiy Hospital
Seoul, Korea, Republic of, 110-744
Sponsors and Collaborators
Seoul National University Hospital
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Principal Investigator: Joo-Youn Cho, PhD Seoul National University Hospital
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Joo-Youn Cho, Professor, Seoul National University Hospital Identifier: NCT01760642    
Other Study ID Numbers: CYP_metabolomics
First Posted: January 4, 2013    Key Record Dates
Last Update Posted: May 26, 2014
Last Verified: May 2014
Keywords provided by Joo-Youn Cho, Seoul National University Hospital:
metabolite profiles
Additional relevant MeSH terms:
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Adjuvants, Anesthesia
Hypnotics and Sedatives
Central Nervous System Depressants
Physiological Effects of Drugs
Anti-Anxiety Agents
Tranquilizing Agents
Psychotropic Drugs
Anesthetics, Intravenous
Anesthetics, General
GABA Modulators
GABA Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Antibiotics, Antitubercular
Antitubercular Agents
Anti-Bacterial Agents
Anti-Infective Agents
Leprostatic Agents
Nucleic Acid Synthesis Inhibitors
Enzyme Inhibitors
Cytochrome P-450 CYP2B6 Inducers
Cytochrome P-450 Enzyme Inducers
Cytochrome P-450 CYP2C8 Inducers
Cytochrome P-450 CYP2C19 Inducers
Cytochrome P-450 CYP2C9 Inducers
Cytochrome P-450 CYP3A Inducers