Booster Dose of sIPV Co-administered With MMR and HepA-I.

January 14, 2026 updated by: Sinovac Biotech Co., Ltd

Open-labeled, Randomized, Controlled Phase IV Clinical Trial to Evaluate the Immunogenicity and Safety of Booster Dose of sIPV Co-administered With MMR and HepA-I.

This is an Open-labeled, Randomized, Controlled Phase IV Clinical Trial to Evaluate the Immunogenicity and Safety of Booster Dose of Sabin Strain Inactivated Poliovirus Vaccine (Vero cell) (sIPV) Co-administered with Measles, Mumps, Rubella (MMR) Combined Live Attenuated Vaccine and Inactivated Hepatitis A (Hep-A) Vaccine.

Study Overview

Status

Completed

Conditions

Detailed Description

The trial plans to enroll 960 infants aged 18 months (+4 months) who had completed three primary doses of sIPV vaccine and were assigned in a 2:2:2:1:1 ratio to four groups including trial group 1, trial group 2, control group 1, control group 2, control group 2, with informed consent from the participant's guardian. Trial group 1 receive one dose of sIPV co-administered with one dose of MMR vaccine. Trial group 2 receive one dose of sIPV co-administered with one dose of inactivated hepatitis A vaccine. Control group 1 receive one dose of sIPV, control group 2 receive one dose of MMR vaccine, and control group 3 receive one dose of inactivated hepatitis A vaccine. About 3.0 ml of venous blood will be collected from all participants before and 30 days after vaccination for antibody detection. Immediate reactions will be observed for 30 minutes after vaccination, and adverse events occured from 0 to day 30 after vaccination will be collected.

Study Type

Interventional

Enrollment (Actual)

889

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Jiangsu
      • Nanjing, Jiangsu, China, 210009
        • Jiangsu Center for Disease Control and Prevention (Jiangsu Institute of Public Health)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • (1) healthy toddlers aged 18 months (+4 months);
  • (2) completed three doses of sIPV primary immunization;
  • (3) completed one dose of MMR vaccination;
  • (4) able to provide proof of vaccination;
  • (5) able to provide legal proof of identity;
  • (6) The guardians of the participants were able to understand and agree to sign the informed consent.

Exclusion Criteria:

  • (1) a history of vaccination with a polio-containing vaccine component in addition to three sIPV primary doses, according to the vaccination certificate;
  • (2) have received a second dose of MMR vaccine or a vaccine containing a vaccine for measles, mumps or rubella, or hepatitis A vaccine (inactivated or attenuated), according to the vaccination certificate;
  • (3) previous history of polio or measles or mumps or rubella or hepatitis A;
  • (4) known severe allergy to the vaccine or vaccine components, such as urticaria, dyspnea, angioedema;
  • (5) severe congenital malformations or developmental disorders, genetic defects, severe malnutrition, etc.;
  • (6) with autoimmune diseases or immunodeficiency diseases (including but not limited to systemic lupus erythematosus, asplenia, functional asplenia, and HIV infection);
  • (7) abnormal coagulation function (such as coagulation factor deficiency, platelet abnormality), or obvious bleeding, hematoma, or ecchymosis after previous intramuscular injection or venipuncture;
  • (8) have/have had a serious neurological disease (e.g., encephalopathy, epilepsy, convulsions [other than febrile convulsions]) or psychosis, a family history of neurological disease or psychosis;
  • (9) receiving immunosuppressive or other immunomodulatory therapy, cytotoxic therapy within the past 6 months, or planning to receive such treatment during the trial;
  • (10) have received an immune globulin or other blood products within the past 6 months or plan to receive such treatment during the trial;
  • (11) receipt of other investigational vaccines within 30 days before vaccination with the investigational vaccines;
  • (12) receipt of live attenuated vaccine within 28 days before vaccination with the investigational vaccine;
  • (13) receipt of subunit or inactivated vaccine within 7 days before vaccination with the investigational vaccine;
  • (14) acute diseases or acute episodes of chronic diseases within the past 7 days;
  • (15) Axillary temperature >37.0℃ if fever occurred before vaccination;
  • (16) which are unsuitable for participation in the clinical trial as judged by the investigators.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Trial group 1
vaccination with sIPV+MMR
vaccination with sIPV
vaccination with MMR
Experimental: Trial group 2
vaccination with sIPV+HepA-I
vaccination with sIPV
vaccination with HepA-I
Active Comparator: Control group 1
vaccination with sIPV
vaccination with sIPV
Active Comparator: Control group 2
vaccination with MMR
vaccination with MMR
Active Comparator: Control group 3
vaccination with HepA-I
vaccination with HepA-I

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
seroconversion rates (SCRs) of sIPV neutralizing antibody against different poliovirus serotypes (Type I, II and III)
Time Frame: 30 days
-The SCRs of neutralizing antibody against different poliovirus serotypes (Type I, II and III) at day 30 after sIPV vaccination.
30 days
SCRs of anti-meascles IgG antibodies
Time Frame: 30 days
SCRs of anti-measles IgG antibodies 30 days after vaccination
30 days
SCRs of anti-mumps IgG antibodies
Time Frame: 30 days
SCRs of anti-mumps IgG antibodies 30 days after vaccination
30 days
SCRs of anti-rubella IgG antibodies
Time Frame: 30 days
SCRs of anti-rubella IgG antibodies 30 days after vaccination
30 days
SCRs of anti-hepatitis A IgG antibodies
Time Frame: 30 days
SCRs of anti-hepatitis A antibodies 30 days after vaccination
30 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Seropositivity rates (SPRs) and GMC of anti-measles virus IgG antibodies
Time Frame: 30 days
SPRs and GMC of anti-measles virus IgG antibodies 30 days after vaccination.
30 days
SPRs and GMC of anti-mumps virus IgG antibodies
Time Frame: 30 days
SPRs and GMC of anti-mumps virus IgG antibodies 30 days after vaccination;
30 days
SPRs and GMC of anti-rubella virus IgG antibodies
Time Frame: 30 days
SPRs and GMC of anti-rubella virus IgG antibodies 30 days after vaccination;
30 days
SPRs and GMC of anti- hepatitis A virus IgG antibodies
Time Frame: 30 days
SPRs and GMC of anti- hepatitis A virus IgG antibodies 30 days after vaccination;
30 days
Geometric Mean Titer (GMT) of sIPV neutralizing antibody against different poliovirus serotypes (Type I, II and III)
Time Frame: 30 days
-GMTs of antibody of neutralizing antibody against different poliovirus serotypes (Type I, II and III) at day 30 after sIPV vaccination;
30 days
- SPRs of neutralizing antibodies against different poliovirus serotypes (Type I, II and III)
Time Frame: 30 days
- SPRs of neutralizing antibodies against different poliovirus serotypes (Type I, II and III) at day 30 after vaccination.
30 days
- Incidence of adverse reactions (ARs)
Time Frame: 30 days
- Incidence of ARs from 0 to 30 days after vaccination;
30 days
- Incidence of serious adverse events (SAEs)
Time Frame: 30 days
- Incidence of SAEs 0~30 days after vaccination.
30 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Pan Hongxing, Jiangsu Center for Disease Control and Prevention (Jiangsu Institute of Public Health)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 8, 2024

Primary Completion (Actual)

September 10, 2025

Study Completion (Actual)

October 10, 2025

Study Registration Dates

First Submitted

May 29, 2024

First Submitted That Met QC Criteria

May 29, 2024

First Posted (Actual)

June 4, 2024

Study Record Updates

Last Update Posted (Estimated)

January 16, 2026

Last Update Submitted That Met QC Criteria

January 14, 2026

Last Verified

May 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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