Pharmacokinetic Assessment of Standard Half-Life (SHL) FVIII, Extended Half-Life (EHL) FVIII, and Efanesoctocog Alfa (BIVV001) in Severe Hemophilia A

Inclusion Criteria: * Severe hemophilia A, defined as \<1 IU/dL (\<1%) endogenous FVIII activity. * Previous treatment for hemophilia A, defined as at least 150 days documented prior exposure to any recombinant and/or plasma-derived FVIII and/or cryoprecipitate products at Day 1. * Platelet count ≥100,000 cells/µL at Screening. * A participant known to be human immunodeficiency virus (HIV) antibody positive, either previously documented or identified from screening assessments, must have the following results prior to enrollment. (CD4 lymphocyte count \>200 cells/mm³ - Viral load of \<400 copies/mL). Exclusion Criteria: * Any concurrent clinically significant liver disease that, in the opinion of the Investigator, would make the participant unsuitable for enrollment. This may include, but is not limited to cirrhosis, portal hypertension, and acute hepatitis. * Serious active bacterial, fungal or viral infection (other than chronic hepatitis or HIV) present within 30 days of Screening. * Other known coagulation disorder(s) in addition to hemophilia A. * History of hypersensitivity or anaphylaxis associated with any FVIII product. * History of a positive inhibitor test defined as ≥0.6 BU/mL, or any value greater than or equal to the lower sensitivity cut-off for laboratories with cut-offs for inhibitor detection between 0.7 and 1.0 BU/mL, or clinical signs or symptoms of decreased response to FVIII administrations. Family history of inhibitors will not exclude the participant. * Positive inhibitor result, defined as ≥0.6 BU/mL at Screening. * Major surgery within 8 weeks of Screening. * Sensitivity to any of the study interventions, or components thereof, or drug or other allergy. The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.