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Sabin Strain Inactivated Poliovirus Vaccine

Phase 3

Poliomyelitis | Monoclonal antibody | Infectious Disease |Sinovac Biotech, Ltd|Last Updated: Dec 18, 2025

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Trial Design

RandomizedCONTROLLEDDMC
Total Trials1
Total Enrollment1,442

FDA Designations

No designations recorded

Clinical trial landscape

Sabin Strain Inactivated Poliovirus Vaccine · 1 trial · 2 indications

Phase 3 1
NCT05850364A Multi-center, Open-labelled, Randomized, Controlled, Extended Phase Ⅲ Clinical Trial of sIPV VaccinePoliomyelitis
COMPLETED1,442 Analytics
PHASE3COMPLETED
A Multi-center, Open-labelled, Randomized, Controlled, Extended Phase Ⅲ Clinical Trial of sIPV Vaccine
PoliomyelitisUnlock trial analytics

Study Endpoints

Primary Endpoints

To evaluate the non-inferiority of immune response to polio vaccination, when administered concomitantly with routine vaccines
28 days

Seroconversion rates of neutralizing antibody against polioviruses of three serotypes, at 28 days after three doses of vaccinationadministered concomitantly with routine vaccines

To evaluate the safety in terms of ARs (Vaccine-related AEs)
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 Endpoints

To evaluate non-inferiority of immune response to diphtheria and tetanus antigens, when routine vaccines are administered concomitantly with sIPV
28 days
To evaluate non-inferiority of immune response to acellular pertussis antigens, when routine vaccines are administered concomitantly with sIPV
28 days
To evaluate the immunogenicity against hepatitis B and Hib, when routine vaccines are administered concomitantly with sIPV
28 days
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
group C1EXPERIMENTALCo-administration of sIPV and routine infant vaccines at 6,10,14 weeks old (N=360)
group C2EXPERIMENTALCo-administration of sIPV and routine infant vaccines at 6, 10,14 weeks old
group S1EXPERIMENTALAdministration of sIPV at 6,10,14 weeks old; Administration of routine infant vaccines at 8,12,16 weeks old
group S2EXPERIMENTALAdministration of routine infant vaccines at 6,10,14 weeks old; Administration of sIPV at 8,12,16 weeks old

Interventions

NameTypeDescription
Sabin Strain Inactivated Poliovirus VaccineBIOLOGICALTotally 1440 healthy infants of 6 weeks old (42-47 days) are planned to be enrolled, and then randomized in a 1:1:1:1 ratio into four groups, i.e., co-administration group 1 (group C1), co-administration group 2 (group C2), staggered administration group 1 (group S1) and staggered administration group 2 (group S2). Participants in group C1 and C2 will receive sIPV at 6,10, 14 weeks old, administered concomitantly with routine infant vaccine (may include DTP-HepB-Hib vaccine, PCV10 or rotavirus vaccine in accordance with the local routine vaccination schedule). Participants in group S1 will receive sIPV at 6,10,14 weeks old, and receive routine infant vaccines at 8,12,16 weeks old. Participant s in group S2 will receive routine infant vaccines at 6,10,14 weeks old, and receive sIPV at 8,12, 16 weeks old.
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Eligibility Criteria

Age Range42 Days to 47 Days
SexALL
Healthy VolunteersYes
Study Sites3

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...

Countries:BangladeshPakistan
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Frequently asked questions about Sabin Strain Inactivated Poliovirus Vaccine

What is Sabin Strain Inactivated Poliovirus Vaccine used for?

Sabin Strain Inactivated Poliovirus Vaccine is used for the prevention of poliomyelitis, a viral disease that can cause paralysis. It is an inactivated polio vaccine being developed for use in children as young as 42 days old, based on a Phase 3 clinical trial.

Who makes Sabin Strain Inactivated Poliovirus Vaccine?

Sabin Strain Inactivated Poliovirus Vaccine is being developed by Sinovac Biotech, Ltd, a biopharmaceutical company listed on the stock exchange under the ticker SVA. The company is conducting clinical trials for this vaccine to prevent poliomyelitis.

What phase is Sabin Strain Inactivated Poliovirus Vaccine in?

Sabin Strain Inactivated Poliovirus Vaccine is in Phase 3 clinical development. It is an investigational vaccine, meaning it has not yet been approved for public use. The Phase 3 trial has been completed, and the vaccine is being studied for the prevention of poliomyelitis.

What clinical trials is Sabin Strain Inactivated Poliovirus Vaccine in?

Sabin Strain Inactivated Poliovirus Vaccine has one completed Phase 3 clinical trial registered as NCT05850364. This was a multi-center, open-label, randomized, controlled trial involving 1,442 participants in Bangladesh and Pakistan, studying the vaccine for poliomyelitis in healthy volunteers.

Is Sabin Strain Inactivated Poliovirus Vaccine the same as sIPV vaccine?

Yes, Sabin Strain Inactivated Poliovirus Vaccine is also referred to as the sIPV vaccine. The clinical trial NCT05850364, which studied this vaccine, is titled 'A Multi-center, Open-labelled, Randomized, Controlled, Extended Phase Ⅲ Clinical Trial of sIPV Vaccine'.