The objective of this study was to compare the pharmacokinetic profiles and bioequivalence of rivaroxaban after a single oral dose of rivaroxaban 2.5 mg tablet in healthy Korean subjects.

This study was a randomized, open-label, single-dose, two-period, crossover study which included 34 healthy adult male and female subjects under fasting conditions. A single dose of experimental drug or comparator was administered in each of the two study periods (separated by a washout period of 1 week). Serial blood samples were collected up to 36 hours post-dose. Plasma drug concentrations were measured by liquid chromatography/tandem mass spectrometry (LC-MS/MS). Pharmacokinetic parameters, including maximum plasma concentration (Cmax) and area under the plasma concentration versus time curve from dosing to the last measurable concentration (AUCt), were determined by non-compartmental analysis. The geometric mean ratios and associated 90% confidence intervals (CIs) of log-transformed Cmax and AUCt were calculated to evaluate pharmacokinetic equivalence.

Inclusion Criteria:

• Healthy male/female aged 19 to 55 with body mass index(BMI) between 18.5 and 30kg/m2
• Acceptable medical history, physical examination, laboratory tests and EKG, during screening
• Subjects who has signed a written informed consent voluntarily

Exclusion Criteria:

• History of clinically significant medical history or current disease

• Hypotension (SBP ≤ 90 mmHg or DBP ≤ 60 mmHg) or hypertension (SBP

  ≥ 140 mmHg or DBP ≥ 90 mmHg).

• AST(SGOT) or/and ALT(SGPT) > 1.5 times of normal upper limit

• Total bilirubin > 2.0 mg/dl

• Volunteers considered not eligible for the clinical trial by the investigator

• Administration of other investigational products within 6 month prior to the first dosing.

De-identified individual participant data (including data dictionaries) that underline the results reported in study-related publications will be made available during the period beginning 1 year and ending 5 years after all trial primary and secondary endpoints were assessed. Only requests from researchers who provide a methodologically sound proposal will be reviewed and approved by the sponsor. The analysis type should be in accordance with aims in the proposal approved by the sponsor. Proposals should be directed to ejsong@yuhan.co.kr.

A summary of the study results will be posted in the publicly accessible database (i.e. clinicaltrials.gov).

Beginning 1 year and ending 5 years after all trial endpoints were assessed

Only requests from researchers who provide a methodologically sound proposal will be reviewed and approved by the sponsor. The analysis type should be in accordance with aims in the proposal approved by the sponsor. Proposals should be directed to ejsong@yuhan.co.kr.