Phase III Clinical Trial of Sabin Strain Inactivated Poliovirus Vaccine (Vero Cell)
A Randomized, Blinded, Parallel Positive-controlled Clinical Trial of Sabin Strain Inactivated Poliovirus Vaccine (Vero Cell) Conducted in Healthy Infants Aged Two Months.
1 other identifier
interventional
1,200
1 country
1
Brief Summary
The study aimed to evaluate the safety and immunogenicity of a Sabin strain-based inactivated polio vaccine in infants aged two months (60\~89 days).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Aug 2017
Longer than P75 for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 21, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 10, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
April 10, 2023
CompletedFirst Submitted
Initial submission to the registry
December 9, 2025
CompletedFirst Posted
Study publicly available on registry
December 22, 2025
CompletedDecember 22, 2025
December 1, 2025
5.6 years
December 9, 2025
December 9, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
the seroconversion rates of poliovirus type I, type II and type III neutralizing antibodies
30 days after the primary immunization
Study Arms (2)
study group
EXPERIMENTAL600 participants
control group
ACTIVE COMPARATOR600 participants
Interventions
Eligibility Criteria
You may qualify if:
- Healthy permanent residents aged 2 months (60\~89 days);
- Infant's legal guardians agree to sign the informed consent forms voluntarily;
- Infant's legal guardians are able to comply with the requirements of the clinical trial protocol;
- Armpit temperature ≤ 37.0 ℃
You may not qualify if:
- preterm birth (gestational age \< 37 weeks);
- the presence of congenital malformations, developmental disorders, genetic defects, or severe malnutrition;
- had a history of poliomyelitis;
- had a personal or family history of allergy, convulsions, epilepsy, encephalopathy, or psychiatric disorders;
- had known hypersensitivity to any component of the study vaccine or a history of severe allergic reaction (e.g., anaphylaxis) to any previous vaccination;
- had immunodeficiency or receipt of immunosuppressive therapy;
- diagnosed coagulation disorders (including factor deficiencies, coagulopathies, platelet abnormalities) or evidence of significant bruising/bleeding diathesis;
- had known or investigator-suspected concurrent acute or active chronic diseases (including respiratory, cardiovascular, hepatic, renal, or dermatological conditions) or acute infection, or maternal HIV infection;
- occurrence of fever (axillary temperature ≥ 38.0 °C) within the 3 days preceding enrollment;
- had acute illness requiring systemic antibiotic or antiviral treatment within the 7 days preceding enrollment;
- administration of blood products within the 3 months preceding enrollment;
- had receipt of any live attenuated vaccine within the 14 days preceding enrollment;
- had receipt of any inactivated or subunit vaccine within the 7 days preceding enrollment;
- had recent administration of any other experimental product and any other condition deemed by the investigator as potentially interfering with the assessment of trial outcomes.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Jiangsu Provincial Center for Diseases Control and Prevention
Nanjing, Jiangsu, 210009, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 9, 2025
First Posted
December 22, 2025
Study Start
August 21, 2017
Primary Completion
April 10, 2023
Study Completion
April 10, 2023
Last Updated
December 22, 2025
Record last verified: 2025-12
Data Sharing
- IPD Sharing
- Will not share