Immunogenicity of 2 Versus 3 Doses of Combined Hepatitis B Vaccines in 2-18 Months Old Children
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- STATUS
- Recruiting
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- participants needed
- 480
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- sponsor
- Laval University
Summary
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 months of age versus (III) three doses of Infanrix-hexa administered at 2, 4 and 18 months of age (comparator).
Description
In the province of Quebec, Canada, hepatitis B vaccination of infants involves three doses of vaccine, 2, 4 and 18 months of age. However, in the current epidemiological context (virtual absence of new cases in young Quebecers) and taking into account scientific data which consistently show a high immunogenicity and efficacy of two doses of hepatitis B vaccine, the relevance of the second dose given at the age of 4 months is questionable.
this study is designed 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 months of age versus (III) three doses of Infanrix-hexa administered at 2, 4 and 18 months of age (comparator).
Details
| Condition | Hepatitis B, Hepatitis B |
|---|---|
| Age | 1-1 years |
| Treatment | Infanrix-hexa, Twinrix-Junior |
| Clinical Study Identifier | NCT04294433 |
| Sponsor | Laval University |
| Last Modified on | 19 February 2024 |
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