Clinical Pharmacology Study of Oral Edaravone in Healthy Adult Males (Drug Interaction Study and Preliminary Regimen-Finding Study)

Clinical Pharmacology Study of Oral Edaravone in Healthy Adult Males (Drug Interaction Study and Preliminary Regimen-Finding Study)

• Cohort 1: To evaluate the drug interactions, safety, and tolerability of oral edaravone when coadministered with rosuvastatin, sildenafil or furosemide in healthy adult males
• Cohort 2: To evaluate the pharmacokinetics, safety, and tolerability of oral edaravone in healthy Japanese and Caucasian adult males

Inclusion Criteria:

• Healthy adult male volunteers
• Cohort 1: Japanese, Cohort 2: Japanese or Caucasian
• Subjects aged between 20 and 45 years at the time of informed consent
• Subjects who have thoroughly understood the contents of the study and voluntarily provided written informed consent to participate in the study

Exclusion Criteria:

Additional screening criteria check may apply for qualification:

• Subjects with a current or previous history of cardiac, hepatic, renal, gastrointestinal, respiratory, psychiatric/nervous, hematopoietic, or endocrine diseases, and those whom the investigator (or subinvestigator) deems unsuitable for the study
• Body mass index (BMI) of <18.0 or >30.0, or body weight of <50 kg (BMI formula: body weight [kg]/height [m]2, rounded to one decimal place)
• Subjects who have undergone any surgery known to affect the gastrointestinal absorption of drugs
• Subjects who do not agree to use an effective method of contraception from initiation of study drug administration to 14 days after completion (discontinuation) of study drug administration
• Subjects who have previously received edaravone
• Subjects who have participated in another clinical study and received a study drug within 12 weeks before providing informed consent
• Use of any drug(s) other than the study drug or as-needed use of acetylsalicylic acid within 7 days before the initiation of study drug or victim drug administration
• Use of any alcohol, xanthine, or caffeine-containing product(s) within 24 hours before screening and Day -1 visiting
• Use of any supplement(s) within 7 days before the initiation of study drug or victim drug administration
• Use of grapefruit, grapefruit juice, or any processed food(s) containing these substances during the following periods (Cohort 1: within 7 days before the initiation of victim drug administration, Cohort 2: within 24 hours before each Day -1 visiting)
• Use of any tobacco or nicotine-containing product(s) (Cohort 1: within 12 weeks before the initiation of victim drug administration during the following periods, Cohort 2: within 24 hours before each Day -1 visiting)
• Use of any health food(s) containing St John's Wort (Hypericum perforatum) within 2 weeks before the initiation of victim drug administration (only in Cohort 1)