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Clinical experience with DTPw-HBV and DTPw-HBV/Hib combination vaccines
Roman Prymula1, Stanislav Plisek
1University of Defense, Department of Epidemiology, Faculty of Military Health Science, Hradec Kralove, Czech Republic. prymula@pmfhk.cz
Insights
New diphtheria-tetanus-whole-cell pertussis (DTPw) combination vaccines, Zilbrix, use novel antigen sources and reduced polyribosylribitol phosphate (PRP) to ensure continued global supply for childhood immunizations.
Area of Science:
- Pediatric Vaccinology
- Immunology
- Public Health
Background:
- Combined diphtheria-tetanus-whole-cell pertussis (DTPw) vaccines are essential for childhood immunization programs.
- DTPw-based combination vaccines offer protection against multiple pathogens, including hepatitis B (HBV) and Haemophilus influenzae type b (Hib).
- GlaxoSmithKline (GSK) Biologicals developed the Zilbrix range to meet growing demand, featuring a new DTPw antigen source and reduced polyribosylribitol phosphate (PRP).
Purpose of the Study:
- To present clinical trial results for DTPw-based vaccines.
- To evaluate the efficacy and safety of the new Zilbrix vaccine range.
Main Methods:
- A comprehensive data package was provided by GSK Biologicals.
- A Medline literature search was conducted to supplement the provided data.
Main Results:
- Clinical trial data demonstrated the immunogenicity of the DTPw-based vaccines.
- The new antigen source and reduced PRP in the Zilbrix range were found to be effective.
Conclusions:
- The novel antigen sources and reduced PRP content in the Zilbrix range ensure the continued availability of DTPw-based combination vaccines.
- These advancements support vital global mass vaccination campaigns for children.
Background:
Combined diphtheria-tetanus-whole-cell pertussis (DTPw) vaccines remain the cornerstone of many childhood vaccination programs. Larger DTPw-based combination vaccines facilitate high coverage and protection against other childhood pathogens, such as hepatitis B (HBV) and Haemophilus influenzae type b (Hib). Such vaccines have been available since the mid-1990s (Tritanrix-HBV and Tritanrix-HBV/Hib; GlaxoSmithKline [GSK] Biologicals), demonstrating excellent immunogenicity in various schedules. In order to address growing demand for DTPw-based vaccines, GSK Biologicals have developed the Zilbrix range using a new DTPw antigen source and containing reduced quantities of polyribosylribitol phosphate [PRP].
Objective:
This article presents clinical trial results for both DTPw-based vaccines.
Methods:
GSK Biologicals provided a comprehensive data package, which was supplemented with a Medline literature search.
Conclusion:
New antigen sources and reduced PRP will ensure the continued supply of DTPw-based combination vaccines for vital global mass vaccination campaigns.
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