Evaluation and Validation of Metabolic Markers for the Assessment of CYP3A Activity and Prediction of DDI (CYP3A_weak)

Seoul National University

Status and phase: Completed; Phase 1

Conditions: Healthy

Treatments: Drug: itraconazole; Drug: Midazolam; Drug: rifampicin

Study type: Interventional

Funder types: Other

Identifiers

NCT02328443

CYP3A_weak

Details and patient eligibility

About

Evaluation and validation of metabolic markers for the assessment of CYP3A activity and prediction of drug-drug interaction in Korean healthy subjects.

Full description

Eligibility for participation of this study will be determined from demographic information, medical history, physical examination, electrocardiogram (ECG) and clinical laboratory tests within 4 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 were overnight-fasted from 10 p.m. of Day -1. Urine collection is scheduled drug 12 hour before and 24 hour after midazolam administration. Subjects will be dosed study drug via intravenous around at 9 a.m. of Day 1. Subjects performed scheduled procedures.

In period 2, Subjects will be admitted on Day 3-5. Subjects performed scheduled period 2 (Itraconazole co-administration phase, 2 times administration of itraconazole 200 mg), and period 3 (rifampicin 150 mg co-administration phase) procedure. Study participation was terminated on post-study visit (Day 23~35).

Enrollment: 24 patients

Sex: Male

Ages: 20 to 40 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Age: Between 20 to 40 years of age, inclusive
• Weight: within 17-28 of Body Mass Index (BMI)
• 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, itraconazole, 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
• 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 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)
• Participation in clinical trials of any drug within 60 days prior to the participation of the study
• Judged to be inappropriate for the study by the investigator

Trial design

Primary purpose: Basic Science

Allocation: Non-Randomized

Interventional model: Single Group Assignment

Masking: None (Open label)

---

24 participants in 3 patient groups

midazolam alone

Experimental group

Description:

midazolam administration alone

Treatment:

Drug: Midazolam

midazolam and itraconazole

Experimental group

Description:

Itraconazole 200 mg PO twice; midazolam iv single administration

Treatment:

Drug: itraconazole

Drug: Midazolam

midazolam and rifampicin

Experimental group

Description:

rifampicin 150 mg PO for 9 days administration, midazolam iv single administration

Treatment:

Drug: rifampicin

Drug: Midazolam