the Five-year Antibody Persistence After Immunization With IPV, MMR and HepA-L Vaccines

This study evaluated the antibody persistence of Chinese children five years after they received four doses of sIPV, two doses of MMR vaccine and one dose of HepA-L vaccine.

NCT Number	NCT07338851
Lead Sponsor	China National Biotec Group Company Limited Collaborators: Shaanxi Provincial Center for Disease Control and Prevention, Hebei Provincial Center for Disease Control and Prevention, Jiangsu Province Centers for Disease Control and Prevention, Anhui Provincial Center for Disease Control and Prevention, Sichuan Provincial Center for Disease Control and Prevention
Conditions	Polio, Measles, Rubella, Mumps, Hepatitis A
Enrollment	600 participants
Start Date	2026-01-30
Primary Completion	2026-12-31 (estimated)
Study Completion	2027-12-31 (estimated)
Updated on ClinicalTrials.gov	2026-01-14