Primary Objective:

To assess the safety and tolerability of ascending single SC doses of alirocumab in Chinese healthy subjects.

Secondary Objectives:

• To assess the pharmacokinetic profile of a single SC dose of alirocumab.
• To assess the pharmacodynamic effect of a single SC dose of alirocumab on low-density lipoprotein cholesterol (LDL-C) and other lipid parameters.
• To assess the immunogenicity of a single SC dose of alirocumab.

Ascending dose design includes 3 dose levels. Tolerance data up to at least 14 days post dosing from at least 6 subjects of the previous cohort will be reviewed before proceeding with a next dose. Total duration of the study per subject is approximately 15 weeks (including screening period).

Inclusion criteria:

• Healthy male or female subjects.
• Aged 18 to 45 years old.
• Low-density lipoprotein cholesterol >100 mg/dL (2.59 mmol/L).

Exclusion criteria:

• Subjects with any history or presence of clinically relevant illness.
• Serum triglycerides >200 mg/dL (2.26 mmol/L) measured after at least 10 hour fasting.
• Use of a medication or nutraceutical in order to alter serum lipids within 4 weeks prior to screening, including but not limited to statins, ezetimibe, fibrates, niacin, or bile acid resins. Use of probucol within 8 weeks prior to screening.

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.