To Evaluate if Multiple Doses of Rifampicin Change the Blood Concentration of YM150 (Darexaban)

• Status: Completed
• Trial end date: 2010-03-01
• Target enrollment: 0
• Participant gender: Male

Summary

The primary objective of this study is to determine the effect of rifampicin on the way the body handles 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 rifampicin.

• Phase: Phase 1
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Astellas Pharma Inc
• Treatments: Darexaban; Rifampin

Criteria

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 rifampicin or any components of the formulation used

• Any of the liver function tests (i.e. ALT and AST) 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 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

• 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 Donation of blood or blood products within 3 months prior to admission to the Clinical Unit

• 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