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Immunogenicity of 2 Versus 3 Doses of Combined Hepatitis B Vaccines in 2-18 Months Old Children

The main objective of this study is to compare the immunogenicity of the hepatitis B component in children vaccinated with (I) two doses of Infanrix-hexa administered at 2 and 12 months of age versus (II) one dose of Infanrix-hexa and one dose of Twinrix administered respectively at 2 and 12 …

Study of VIR-2218 With or Without Pegylated Interferon Alpha-2a for Treatment of Chronic Hepatitis B Virus Infection

This is a phase 2 study in which subjects with chronic hepatitis B virus (HBV) infection will receive VIR-2218 alone or in combination with pegylated interferon alfa-2a and will be assessed for safety, tolerability, pharmacokinetics, and antiviral activity.

Study of a Pneumococcal Conjugate Vaccine When Administered Concomitantly With Routine Pediatric Vaccines in Healthy Toddlers and Infants  

To assess the immune response (serotype specific IgG concentration) of the SP0202 formulations and Prevnar 13 1 month after the administration of one dose in toddlers (Groups 1-4) To assess the immune response (serotype specific IgG concentration) of the SP0202 formulations and Prevnar 13 1 month after the administration of …

Immunogenicity and Safety Study of a Quadrivalent Meningococcal Conjugate Vaccine When Co-administered With Routine Pediatric Vaccines in Healthy Infants and Toddlers in Europe

The primary objective of the study is to demonstrate the non-inferiority of the antibody response against meningococcal serogroups A, C, Y, and W following a 3-dose series of MenACYW conjugate vaccine compared to a 3-dose series of a licensed meningococcal vaccine when each vaccine is given concomitantly with routine pediatric …

Immunogenicity and Safety Study of a Quadrivalent Meningococcal Conjugate Vaccine When Co-administered With Routine Pediatric Vaccines in Healthy Infants and Toddlers in Europe

The primary objective of the study is to demonstrate the non-inferiority of the antibody response against meningococcal serogroups A, C, Y, and W following a 3-dose series of MenACYW conjugate vaccine compared to a 3-dose series of a licensed meningococcal vaccine when each vaccine is given concomitantly with routine pediatric …