A Study to Learn About the Single Dose Pharmacokinetics of Study Medicine Called Tilrekimig in Healthy Adults When Co-Mixed With rHuPH20

Inclusion Criteria: * BMI of 16-32 kg/m2; and a total body weight \>50 kg (110 lb). * Participants who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures. Participants should be able to understand and sign informed consent Exclusion Criteria: * Evidence or history of clinically significant any medical condition * History of HIV infection, hepatitis B, or hepatitis C; positive testing for HIV, HBsAg, HBcAb or HCVAb. * Evidence of active, latent, or inadequately treated infection with Mycobacterium TB * History of allergic or anaphylactic reaction with any biologic agents.