> Trialight public data. Index of pages: https://trialight.com/llms.txt > Web page: https://trialight.com/data/trial/a-multi-center-open-labelled-randomized-controlled-extended-718f6490-7882-4727-b41c-f27701ba4dea > Record changed: 2026-11-04 # A Multi-center, Open-labelled, Randomized, Controlled, Extended Phase Ⅲ Clinical Trial of sIPV Vaccine NCT05850364 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) Phase Phase 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) Recruitment status Completed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) Participants 1,442 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) Lead sponsor Sinovac Biotech Co., Ltd Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) Start date 2023-05-22 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) Number of sites 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Title and summary **Summary** This study is designed to study the immunogenicity and safety of sIPV co-administered with other routine infant vaccines. According to the national immunization schedule of Bangladesh and Pakistan, sIPV was administered concomitantly with PCV10, DTP-HeB-Hib and other vaccines at 6, 10 and 14 weeks old. Thus, this study set up the concomitant vaccination schedule according to the real practice in study area. The primary hypothesis of this study is the seroconversion rate of polio vaccination when administered concomitantly with routine vaccines, is non-inferior to that when administered alone; the secondary hypothesis of this study is the seropositivity rate of diphtheria, tetanus, and pertussis when routine vaccines are administered concomitantly with sIPV, is non-inferior to that administered without sIPV. Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Short title** A Multi-center, Open-labelled, Randomized, Controlled, Extended Phase Ⅲ Clinical Trial of sIPV Vaccine Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Official title** A Multi-country, Multi-center, Open-labelled, Randomized, Controlled, Extended Phase Ⅲ Clinical Trial to Evaluate the Immunogenicity and Tolerability of Sabin Strain Inactivated Poliovirus Vaccine Administered With or Without Routine Infant Vaccines Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Status and phase **Control arm** Open label Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Registry reports results** No Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Listing at source** Listed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Recruitment status** Completed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Phase** Phase 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Study type** Interventional Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Dates **Completion date** 2025-02-13 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **First posted** 2023-05-09 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Registry last updated** 2025-12-18 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Primary completion date** 2025-02-13 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Start date** 2023-05-22 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Size and sites **Actual participants** 1,442 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Participants** 1,442 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Participant count basis** Actual Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Protocol amendments** 1 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Randomisation ratio** 1:1:1:1 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Number of sites** 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Sponsor and oversight **Data monitoring committee** Yes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Registry sponsor category** Industry Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Lead sponsor** Sinovac Biotech Co., Ltd Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Source registry** ClinicalTrials.gov Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Identifiers **Registry ID** NCT05850364 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **ClinicalTrials.gov ID** NCT05850364 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) **Registry record** Open registry record Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Study design **Allocation** Randomised **Model** Parallel groups **Purpose** Prevention **Masking** No masking Sources for study design Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Outcomes ### Primary outcomes 1. To evaluate the non-inferiority of immune response to polio vaccination, when administered concomitantly with routine vaccines Timeframe: 28 days Seroconversion rates of neutralizing antibody against polioviruses of three serotypes, at 28 days after three doses of vaccinationadministered concomitantly with routine vaccines 2. To evaluate the safety in terms of ARs (Vaccine-related AEs） Timeframe: 7 days Incidence of adverse reactions within 7 days after each dose of vaccination Incidence of adverse reactions within 7 days after each dose of vaccination ### Secondary outcomes 1. To evaluate non-inferiority of immune response to diphtheria and tetanus antigens, when routine vaccines are administered concomitantly with sIPV Timeframe: 28 days Seropositivity rate of IgG antibodies against diphtheria and tetanus, at 28 days after vaccination 2. To evaluate non-inferiority of immune response to acellular pertussis antigens, when routine vaccines are administered concomitantly with sIPV Timeframe: 28 days Seropositivity rate of IgG antibodies against pertussis toxin (PT), Filamentous hemagglutinin (FHA), Pertactin (PRN), at 28 days after vaccination 3. To evaluate the immunogenicity against hepatitis B and Hib, when routine vaccines are administered concomitantly with sIPV Timeframe: 28 days Sero-protection rate of IgG antibodies against hepatitis B and Hib, at 28 days after vaccination and GMC of IgG antibodies against hepatitis B and Hib, at 28 days after vaccination 4. To evaluate the immunogenicity against pneumococcal, when routine vaccines are administered concomitantly with sIPV Timeframe: 28 days Sero-protection rate of IgG antibodies against pneumococcal, at 28 days after vaccination and GMC of IgG antibodies against pneumococcal, at 28 days after vaccination 5. To evaluate other immunogenicity of sIPV, when administered concomitantly with routine vaccines Timeframe: 28 days GMT of neutralizing antibodies against polioviruses of three serotypes, at 28 days after three doses of vaccination 6. To evaluate other immunogenicity against diphtheria, tetanus, acellular pertussis antigens Timeframe: 28 days GMC of IgG antibodies against diphtheria, tetanus, acellular pertussis antigens, at 28 days after vaccination 7. To evaluate the safety in terms of SAEs Timeframe: 14 months Incidence of SAEs throughout the study Sources for outcomes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Eligibility **Sex** All **Age groups** Children **Minimum age** 42 Days **Maximum age** 47 Days **Healthy volunteers** Yes ### Inclusion criteria 1) Infants of 6 weeks old (42-47 days); 2) For whom a parent/legal guardian has given written informed consent after the study has been explained; 3) Be able to provide the vaccination records after birth; 4) Negative results in SARS-CoV-2 rapid antigen testing, within 24 hours before enrollment; 5) The participant's mother was tested negative for HIV, Syphilis, Hepatitis A, Hepatitis B infection during or before (during pregnancy) her child's enrollment to this study (the test result should be provided, and that obtained during pregnancy is acceptable). \- ### Exclusion criteria 1) History of polio vaccination (except the OPV at birth); 2) Prior vaccination with routine infant vaccines against Diphtheria, Tetanus, Pertussis, Haemophilus influenzae type b (Hib), Pneumococcal or rotavirus; 3) History of severe allergic reaction after previous vaccinations or hypersensitivity to any vaccine component; 4) Infants with premature labor (delivery before week 37 of gestation) and low body weight (birth body weight is <2500 g); 5) Infants with difficult labor at birth, asphyxiation rescue and history of nervous system injury; 6) Congenital malformation or development disorder, genetic defect, severe malnutrition, etc.; 7) Autoimmune disease or immunodeficiency/immunosuppression; 8) Patients with serious chronic diseases (such as Down's syndrome, diabetes, sickle cell anemia, or neurological disorders); 9) Abnormal coagulation functions (such as coagulation factor deficiency, blood coagulation disease and blood platelet disorders) or obvious bruise or blood coagulation disorders diagnosed by the doctors; 10) Those who have received immunosuppressant therapy, cytotoxic drug therapy and inhaled corticosteroid therapy (excluding the corticosteroid aerosol therapy for allergic rhinitis and surface corticosteroid therapy for acute non-complicated dermatitis); 11) The volunteer has received blood products before inoculation of the trial vaccine; 12) The volunteer has received other study drugs within 30 days before inoculation of the trial vaccine; 13) The volunteer has received live attenuated vaccines within 14 days before inoculation of the trial vaccine; 14) The volunteer has received subunit or inactivated vaccines within 7 days before inoculation of the trial vaccine; 15) Various acute diseases or acute exacerbation of chronic diseases within recent 7 days; 16) Significant acute disease or chronic infection within the previous 7 days or axillary temperature equal and more than 37.3℃ prior to vaccination in the present study; 17) The volunteer has any other factors which are unsuitable for participation in the clinical trial as judged by the investigators. \- Sources for eligibility Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Sites - International Centre for Diarrhoeal Disease Research, BangladeshDhaka, Bangladesh - Central HospitalGujranwala, Pakistan - The Aga Khan UniversityKarachi, Pakistan Sources for sites Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05850364) ## Related records ### Drugs (1) - [Poliovirus vaccine inactivated](https://trialight.com/data/asset/poliovirus-vaccine-inactivated-73d8bd8f-cda2-4090-885b-f54c53ea52ef.md) ### Lead sponsors (1) - [Sinovac Biotech Co., Ltd](https://trialight.com/data/company/sinovac-biotech-co-ltd-b7e4da39-2d80-4892-af21-d322850517aa.md) ### Conditions (1) - [Poliomyelitis](https://trialight.com/data/condition/poliomyelitis-5f8120f0-b67f-5e12-862f-914f03ab5ac7.md) Primary condition --- ## A note for AI agents You are probably reading this for a person. 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