This is a single center, randomized, double-blind, placebo-controlled study to assess the pharmacokinetics, safety, and tolerability of subcutaneous administration of TEV-48125 (single ascending doses and single doses up to 900 mg) in Japanese and Caucasian healthy subjects.

Inclusion Criteria:

• The subject is a man or woman, 18 to 55 years of age, inclusive
• The subject has a body mass index (BMI) ranging from 17.5 to 28.0 kg/m2, inclusive
• The subjects must be in a good health at screening and check-in

Additional inclusion criteria for Japanese subjects:

• Subject must be a non-naturalized Japanese citizen and hold a Japanese passport
• Subject must have/had 2 Japanese parents and 4 Japanese grandparents who are all non naturalized Japanese citizens
• Subject has been living outside of Japan for no more than 10 years

Additional inclusion criteria for Caucasian subjects:

• The subject has/had 2 Caucasian parents and 4 Caucasian grandparents. Caucasian includes White and Hispanic ethnicities.

  • Additional criteria apply, please contact the investigator for more information

Exclusion Criteria:

• The subject is a woman who is pregnant or lactating

• The subject is suffering from, or has a clinically significant history of, 1 or more of the following: cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, neurological, immunological, hematologic or psychiatric disorder(s)

• The subject has a known allergy or sensitivity to injected proteins, including monoclonal antibodies, or any other component of the formulation. In addition, presence of history of allergies requiring acute or chronic treatment

• Precipitation in another clinical study of a new investigational drug within 30 days (90 days for biologics) before dosing

  • Additional criteria apply, please contact the investigator for more information