Extract

Primary objective: => To describe the Seroprotection rate (SPR) at least 2 years following completion of a primary series with an Hepatitis B vaccine and 1 month following a challenge dose of HBVaxPro. Secondary Objective: => To describe the safety and tolerability of a challenge dose of HBVaxPro in adults ≥50 years of age.

Inclusion criteria

• Hepatitis B

Country

• Canada
• Denmark
• Sweden
• United Kingdom

Links

• nct
• ictrp