This study is to assess the pharmacokinetics of Pregabalin controlled release formulation after multiple dosing as compared to Pregabalin immediate release formulation and the food effect of high fat diet after single dosing in healthy male volunteers.

Cohort 1 study is to assess the PK of Pregabalin controlled release formulation as compared to Pregabalin immediate release formulation. Cohort 1 subjects will be admitted to the clinic at Day 1. All subjects will receive multiple dosing for three days of YHD1119 or Pregabalin IR and will remain in the clinic until completion of all assessment on Day 19 including collection of PK sample. The treatment periods were separated by a washout period (10-17 days).

Cohort 2 study is to assess the food effect of high fat diet after single dosing. Cohort 2 subjects will be admitted to the clinic at Day -1. All subjects will receive a single dose of YHD1119 and will remain in the clinic until completion of all assessment on Day 9 including collection of PK sample. The treatment periods were separated by a washout period (7-14 days).

Inclusion Criteria:

• Healthy male with body mass index (BMI) between 18.5 and 28 kg/m2
• Who has not suffered from clinically significant disease
• Provision of signed written informed consent

Exclusion Criteria:

• History of and clinically significant disease
• A history of drug abuse or the presence of positive reactions to drugs that have abuse potential in urine screenings for drugs
• Administration of other investigational products within 3 months prior to the first dosing