Hepatitis B Vaccine Clinical Trial
Official title:
Immunogenicity and Persistence of Intramuscular High Dose Recombinant Hepatitis B Vaccine in Methadone Maintenance Treatment Patients in China: a Randomized Controlled Trial
This is a randomized, controlled trial. The study will evaluate the immunogenicity, immune persistence, and safety of 20 µg and 60 µg recombinant hepatitis B vaccine with three injections at months 0, 1, and 6 in methadone maintenance treatment patients.
Comparison of 2 vaccination strategy against Hepatitis B in patients with Methadone Maintenance Treatment Intervention: Arm 1 : 60 µg recombinant hepatitis B vaccine with three injections at months 0, 1, and 6; Arm 2 : 20 µg recombinant hepatitis B vaccine with three injections at months 0, 1, and 6. ;
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