Healthy Subjects Clinical Trial
Official title:
An Open-label, Randomized, Two-period Crossover Study to Evaluate the Effect of Multiple Doses of Ketoconazole on the Pharmacokinetics of Darexaban and Metabolites in Young Healthy Male Subjects
The primary objective of this study is to determine the effect of ketoconazole on the blood concentrations of darexaban and its metabolites (drug degradation products). The secondary objective of the study is to evaluate the safety and tolerability of a single dose of darexaban alone and when administered together with ketoconazole.
Status | Completed |
Enrollment | 26 |
Est. completion date | March 2010 |
Est. primary completion date | March 2010 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Male |
Age group | 18 Years to 55 Years |
Eligibility |
Inclusion Criteria: - Body mass index (BMI) between 18.5-30.0 kg/m2 - Male subjects must be non-fertile, i.e. surgically sterilized or must practice an adequate contraceptive method to prevent pregnancies Exclusion Criteria: - Known or suspected hypersensitivity to darexaban or ketoconazole or any components of the formulation used - Any of the liver function tests (i.e. ALT, AST and bilirubin) above the upper limit of normal at repeated measures - Any clinically significant history of any other disease or disorder - gastrointestinal, cardiovascular, respiratory, renal, hepatic, neurological, dermatological, psychiatric or metabolic as judged by the medical investigator - Any clinically significant abnormality following the investigator's review of the pre-study physical examination, ECG and clinical laboratory tests - Use of any prescribed or OTC (over-the-counter) drugs (including vitamins, natural and herbal remedies, e.g. St. John's wort) in the 2 weeks prior to admission to the Clinical Unit, except for occasional use of paracetamol (up to 3 g/day) - Regular use of any inducer of liver metabolism (e.g. barbiturates, rifampicin) in the 3 months prior to admission to the Clinical Unit - Donation of blood or blood products within 3 months prior to admission to the Clinical Unit - Any use of drugs of abuse, or smoking of more than 10 cigarettes (or equivalent) or more than 21 units (210 g) of alcohol per week within the 3 months prior to study - Participation in any clinical study within 3 months or participation in more than 3 clinical studies within 12 months, prior to the expected date of enrolment into the study, provided that the clinical study did not entail a biological compound with a long terminal half life |
Allocation: Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Crossover Assignment, Masking: Open Label
Country | Name | City | State |
---|---|---|---|
France | SGS Aster | Paris |
Lead Sponsor | Collaborator |
---|---|
Astellas Pharma Inc |
France,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Pharmacokinetics of darexaban and its metabolites assessed by plasma concentration | Plasma samples are taken until 72 hours (darexaban alone) or 144 hours (combination of darexaban and ketoconazole) after darexaban dosing | No | |
Secondary | Monitoring of safety and tolerability through assessment of vital signs, Electrocardiogram (ECG), clinical safety laboratory and adverse events | 16 days | Yes |
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