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Sinovac PCV24

Phase 3

Pneumococcal Infectious Disease | Monoclonal antibody | Infectious Disease |Sinovac Biotech, Ltd|Trials Updated: May 18, 2026

Sinovac PCV24 development status

Highest phase Phase 3
Registered trials 2 across 1 sponsor since Jan 2025

Sinovac PCV24 target and mechanism

ModalityMonoclonal antibody

Also known as Sinovac PCV24 formulation 1, Sinovac PCV24 formulation 2, Sinovac PCV13

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials7
Total Enrollment4,609

FDA Designations

No designations recorded

Sinovac PCV24 clinical trials

Sinovac PCV24 · 7 trials · 2 indications

Phase 3 2Phase 2 1Phase 1 4
NCT07593924Clinical Trial of PCV13 in Infants Aged Approximately 2 Months (42 to 89 Days)Pneumococcal Infectious Diseases
NOT YET_RECRUITING500 Analytics
NCT06617715Clinical Trial of 13-Valent Pneumococcal Conjugate VaccinePneumococcal Infectious Disease
RECRUITING3,080 Analytics
PHASE3NOT YET_RECRUITING
Clinical Trial of PCV13 in Infants Aged Approximately 2 Months (42 to 89 Days)
Pneumococcal Infectious DiseasesUnlock trial analytics
PHASE3RECRUITING
Clinical Trial of 13-Valent Pneumococcal Conjugate Vaccine
Pneumococcal Infectious DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of participants with pneumococcal serotype-specific IgG antibody concentrations≥0.35 μg/mL .
30 days after dose 2.

Non-inferiority criterion: The lower limit of the two-sided 95% CI for the difference (Sinovac-PCV13 minus Prevenar 13™) \> -10% for each serotype at 30 days after dose 2.

Geometric mean concentrations (GMCs) of serotype-specific IgG antibody.
30 days after dose 2

Non-inferiority criterion: The lower limit of the two-sided 95% CI for the GMC ratio (Sinovac-PCV13/Prevenar 13™) \> 0.5 for each serotype at 30 days after dose 2.

Proportion of pneumococcal serotype-specific IgG antibody concentration ≥0.35 μg/ml (seropositive rate)
30 days after primary vaccination

Proportion of serotype-specific IgG concentration ≥0.35 μg/ml

Pneumococcal serotype-specific IgG antibody geometric mean concentration (GMC)
30 days after primary vaccination

IgG GMC

Incidence of adverse reactions
0-30 days after vaccination

Secondary Endpoints

Percentage of participants with pneumococcal serotype-specific IgG antibody concentrations≥0.35 μg/mL .
30 days after dose 3.
Geometric mean concentrations (GMCs ) of serotype-specific IgG antibody.
30 days after dose 3.
Percentage of participants with serotype-specific IgG concentrations ≥ 1.0 μg/mL
30 days after dose 2
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Sinovac PCV 13EXPERIMENTAL250 participants aged 2 months (42 to 89 days) will receive 3 doses of Sinovac PCV13 at approximately 2, 4 and 12-15 months of age.Route of administration is intramuscular injection at anterolateral thigh for infants aged younger than 12 months, and at deltoid muscle of upper arm for children aged older than 12 months.
Prevenar 13™ACTIVE_COMPARATOR250 participants aged 2 months (42 to 89 days) will receive 3 doses of Prevenar 13™ at approximately 2, 4 and 12-15 months of age.Route of administration is intramuscular injection at anterolateral thigh for infants aged younger than 12 months, and at deltoid muscle of upper arm for children aged older than 12 months.
Experimental: Sinovac PCV13EXPERIMENTALParticipants aged 6 weeks-5 years will receive 4 doses of Sinovac PCV13 according to different immunization schedules.
Active Comparator: Prevnar®ACTIVE_COMPARATORParticipants aged 6 weeks-5 years will receive 4 doses of Prevnar 13® according to different immunization schedules.
Sinovac PCV24EXPERIMENTALSinovac PCV24 (0.5 mL) is administered intramuscularly according to different immunization schedules.
Prevnar®ACTIVE_COMPARATORPrevnar® (0.5 mL) is administered intramuscularly according to different immunization schedules.
Experimental: Sinovac PCV24EXPERIMENTALParticipants aged 2 months (minimum 42 days)-23 months will receive Sinovac PCV24 according to different immunization schedules. Route of administration is intramuscular injection at anterolateral thigh for infants aged younger than 12 months, and at deltoid muscle of upper arm for children aged older than 12 months.
Experimental group 1EXPERIMENTAL12 participants aged 6-17 years and 30 participants aged 2-5 years will be randomized to receive Sinovac PCV24 formulation 1. Route of administration is intramuscular injection at deltoid muscle of upper arm. Immunization schedule is 1 dose.
Experimental group 2EXPERIMENTAL12 participants aged 6-17 years and 30 participants aged 2-5 years will be randomized to receive Sinovac PCV24 formulation 2. Route of administration is intramuscular injection at deltoid muscle of upper arm. Immunization schedule is 1 dose.
Active control groupACTIVE_COMPARATOR30 participants aged 2-5 years will be randomized to receive Prevenar13®. Route of administration is intramuscular injection at deltoid muscle of upper arm. Immunization schedule is 1 dose.
Experimental: Sinovac PCV24 formulation 1EXPERIMENTAL48 participants will be randomized to receive Sinovac PCV24 formulation 1. Route of administration is intramuscular injection at deltoid muscle of upper arm. Immunization schedule is 1 dose.
Experimental: Sinovac PCV24 formulation 2EXPERIMENTAL48 participants will be randomized to receive Sinovac PCV24 formulation 2. Route of administration is intramuscular injection at deltoid muscle of upper arm. Immunization schedule is 1 dose.
Active control: Pneumovax®ACTIVE_COMPARATOR48 participants will be randomized to receive Pneumovax®. Route of administration is intramuscular injection at deltoid muscle of upper arm. Immunization schedule is 1 dose.
Placebo: Normal salinePLACEBO_COMPARATOR24 participants will be randomized to receive placebo. Route of administration is intramuscular injection at deltoid muscle of upper arm. Immunization schedule is 1 dose.
Infants aged 2 months in experimental groupEXPERIMENTAL35 participants aged 2 months will be randomized to receive Sinovac PCV13. Route of administration is intramuscular injection at anterolateral aspect of thigh; immunization schedule is 4 doses, including 3 doses (two-month interval) in primary vaccination and a booster dose at the age of 12-15 months.
Infants aged 2 months in control groupACTIVE_COMPARATOR35 participants aged 2 months will be randomized to receive PREVNAR 13. Route of administration is intramuscular injection at anterolateral aspect of thigh; immunization schedule is 4 doses, including 3 doses (two-month interval) in primary vaccination and a booster dose at the age of 12-15 months.
Children aged 2-5 years in experimental groupEXPERIMENTAL35 children aged 2-5 years will be randomized to receive Sinovac PCV13. The route of administration is intramuscular injection at deltoid muscle of the upper arm, and immunization schedule is 1 dose for children aged 2-5 years old.
Children aged 2-5 years in control groupACTIVE_COMPARATOR35 children aged 2-5 years will be randomized to receive PREVNAR 13. The route of administration is intramuscular injection at deltoid muscle of the upper arm, and immunization schedule is 1 dose for children aged 2-5 years old.

Interventions

NameTypeDescription
Sinovac PCV13BIOLOGICALOne dose of Sinovac PCV13 (0.5ml) was administered at 2, 4, and 12-15 months of age.
Prevenar 13™BIOLOGICALOne dose of Prevenar 13™ (0.5ml) was administered at 2, 4, and 12-15 months of age.
Prevnar®BIOLOGICALOne dose of Prevnar® (0.5 mL) is administered intramuscularly.
Sinovac PCV24BIOLOGICALSinovac PCV24 (0.5 mL) is administered intramuscularly according to different immunization schedules.
Sinovac PCV24 formulation 1BIOLOGICALOne dose of Sinovac PCV24 formulation 1(0.5mL)
Sinovac PCV24 formulation 2BIOLOGICALOne dose of Sinovac PCV24 formulation 2(0.5mL)
Prevenar13®BIOLOGICALOne dose of PCV13 manufactured by Pfizer
Pneumovax®BIOLOGICALOne dose of Pneumovax® (0.5 mL) contains 1, 2, 3, 4, 5, 6B, 7F, 8, 9N, 9V, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F and 33F saccharides.
PlaceboBIOLOGICAL0.5 mL of 0.9%NaCl solution (normal saline)
PREVNAR 13BIOLOGICAL0.5 mL dose of PREVNAR 13 contains 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F saccharides.
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Eligibility Criteria

Age Range42 Days to 89 Days
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. Health infants aged approximately 2 months (42 to 89 days) 2. Have a parent/legal guardian who has provided written informed consent after being fully informed about the study. 3. Be able to provide the vaccination records since birth. 4. The infant's mother is tested negativ...

Countries:PhilippinesChina
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Frequently asked questions about Sinovac PCV24

What is Sinovac PCV24?

Sinovac PCV24 is an investigational pneumococcal vaccine being developed by Sinovac Biotech, Ltd for the prevention of pneumococcal infectious disease. It is in Phase 3 clinical development. The program includes multiple formulations and a PCV13 version, studied in infants and children, including healthy volunteers.

What is Sinovac PCV24 used for?

Sinovac PCV24 is being developed for pneumococcal infectious disease. Clinical trials are enrolling infants and children, with study populations starting at 42 days of age and extending up to 5 years. The trials are conducted in healthy volunteers, and the program includes both PCV24 and PCV13 formulations.

Who makes Sinovac PCV24?

Sinovac PCV24 is developed by Sinovac Biotech, Ltd, which trades under the ticker SVA. The company is running the pneumococcal vaccine program, including the PCV24 and PCV13 formulations, across multiple clinical trials in infants and children.

What phase is Sinovac PCV24 in?

Sinovac PCV24 is in Phase 3 clinical development. The overall program includes 7 trials across Phase 1, Phase 2, and Phase 3, with 4 currently active and 3 completed. Total enrollment across the program is 4,609 participants. The studies are randomized, double-blind, and active-controlled.

What clinical trials is Sinovac PCV24 in?

Sinovac PCV24 trials include NCT07300644, a Phase 2 study in infants and children aged 2 months to 5 years in China, and NCT06800261, a Phase 1 study in infants aged 2 to 23 months in China. Related PCV13 studies include NCT07593924 in the Philippines and NCT06617715 in China.

Is Sinovac PCV24 the same as Sinovac PCV13?

Sinovac PCV24 and Sinovac PCV13 are related formulations within the same Sinovac Biotech pneumococcal vaccine program. Sinovac PCV24 is also known as Sinovac PCV24 formulation 1 and formulation 2. The PCV13 version is studied separately, including in a Phase 3 trial in infants aged approximately 2 months.