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Pneumoccocal Vaccine

Phase 3

Meningococcal Immunisation | Monoclonal antibody | Infectious Disease |Sanofi|Last Updated: Jan 21, 2026

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Trial Design

RandomizedACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment1,528

FDA Designations

No designations recorded

Clinical trial landscape

Pneumoccocal Vaccine · 1 trial · 2 indications

Phase 3 1
NCT05794230Study of a Quadrivalent Meningococcal Conjugate Vaccine (MenACYW Conjugate Vaccine) Given With Routine Pediatric Vaccines in Healthy Infants and Toddlers in India and the Republic of South AfricaMeningococcal Immunisation
COMPLETED1,528 Analytics
PHASE3COMPLETED
Study of a Quadrivalent Meningococcal Conjugate Vaccine (MenACYW Conjugate Vaccine) Given With Routine Pediatric Vaccines in Healthy Infants and Toddlers in India and the Republic of South Africa
Meningococcal ImmunisationUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of participants with anti-meningococcal serogroups A, C, Y, W antibody titers above predefined thresholds after 2 doses of MenACYW conjugate vaccine compared to 2 doses of Menactra® vaccine in infants and toddlers 6 months to 16 months of age
30 days after the second vaccination

Antibody (Ab) titers against meningococcal serogroups A, C, Y, and W will be measured in infants and toddlers 6 months to 16 months of age (\[Group 1 + Group 3\] versus \[Group 2 + Group 4\]) The following threshold values will be considered: ≥ 1:8

Percentage of participants with anti-meningococcal serogroups A, C, Y, W Ab titers above predefined thresholds after 3 doses of MenACYW conjugate vaccine in infants and toddlers 6 weeks to 15 months of age
30 days after the booster vaccination

Ab titers against meningococcal serogroups A, C, Y, and W will be measured in infants and toddlers 6 months to 15 months of age (Group 5 + Group 7) The following threshold values will be considered: ≥ 1:8

Secondary Endpoints

Geometric Mean Titers (GMTs) of Ab against meningococcal serogroups A, C, Y, and W when MenACYW conjugate vaccine administered concomitantly with other age-recommended vaccine in infants 6 weeks to 15 months of age
Baseline; 30 days after primary series of vaccination; Before and 30 days after booster vaccination
Geometric Mean Titers Ratio (GMTR) of Ab against meningococcal serogroups A, C, Y, and W when MenACYW conjugate vaccine administered concomitantly with other age-recommended vaccine in infants 6 weeks to 15 months of age
Baseline; 30 days after primary series of vaccination; Before and 30 days after booster vaccination
GMTs of Ab against meningococcal serogroups A, C, Y, and W when MenACYW conjugate vaccine or Menactra vaccine when administered concomitantly with other age-recommended vaccines in infants and toddlers 6 months to 16 months of age
Baseline; Before and 30 days after each vaccination
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Groups 1a, 1b and 1c Cohort Ia (India)EXPERIMENTAL2 injections of MenACYW conjugate vaccine: at 6 months of age and second dose at 12 months of age (group 1a) or at 15 months of age (group 1b) or at 16 months of age (group 1c) + co-administered routine pediatric vaccines
Group 2 Cohort Ia (India)ACTIVE_COMPARATOR2 injections of Menactra vaccine: at 9 months of age and second dose at 16 months of age + co-administered routine pediatric vaccines
Groups 3 Cohort Ib (RSA)EXPERIMENTAL2 injections of MenACYW conjugate vaccine: at 6 months of age and second dose between 12 and 16 months of age + co-administered routine pediatric vaccines
Group 4 Cohort Ib (RSA)ACTIVE_COMPARATOR2 injections of Menactra vaccine: at 9 months of age and second dose between 12 and 16 months of age + co-administered routine pediatric vaccines
Groups 5a and 5b Cohort IIa (India)EXPERIMENTAL3 injections of MenACYW conjugate vaccine: at 6-8 weeks of age and second dose at 14-16 weeks of age with a booster dose administered at 12 months of age (group 5a) or at 15 months of age (group 5b) + co-administered routine pediatric vaccines
Group 6 Cohort IIa (India)OTHERroutine pediatric vaccines only
Group 7 Cohort IIb (RSA)EXPERIMENTAL3 injections of MenACYW conjugate vaccine: at 6-8 weeks of age and second dose at 14-16 weeks of age with a booster dose administered between 12 and 15 months of age + co-administered routine pediatric vaccines
Group 8 Cohort IIb (RSA)OTHERroutine pediatric vaccines only

Interventions

NameTypeDescription
Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid Conjugate VaccineBIOLOGICALLiquid solution - intramuscular
Meningococcal (Groups A, C, Y and W 135) Polysaccharide Diphtheria Toxoid Conjugate VaccineBIOLOGICALLiquid solution - intramuscular
Oral bivalent types 1 and 3; Poliomyelitis Vaccine (OPV)BIOLOGICALOral suspension - oral
Pneumoccocal VaccineBIOLOGICALSuspension for injection - intramuscular
Measles, Mumps, and Rubella Vaccine live (MMR)BIOLOGICALLyophilized powder for injection - subcutaneous
DTwP-HepB-Hib-IPV vaccineBIOLOGICALSuspension - intramuscular
DTaP-IPV-Hib-HepB vaccineBIOLOGICALLiquid solution - intramuscular
Hepatitis A vaccineBIOLOGICALLyophilized powder for injection - subcutaneous
Rotavirus vaccineBIOLOGICALOral solution - oral
Typhoid conjugate vaccine (TCV)BIOLOGICALSuspension for injection - intramuscular
Measles vaccineBIOLOGICALFreeze-dried powder for reconstitution and injection - subcutaneous
Varicella vaccine liveBIOLOGICALSterile powder and diluent for injection - subcutaneous
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Eligibility Criteria

Age Range6 Weeks to 6 Months
SexALL
Healthy VolunteersYes
Study Sites15

Inclusion Criteria: * Cohort I: 6 months of age (180 to 209 days of age) on the day of the first study visit * Cohort II: 6-8 weeks of age (42 to 62 days of age) on the day of the first study visit * Healthy infants as determined by medical history, physical examination, and judgment of the Investi...

Countries:IndiaSouth Africa
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Frequently asked questions about Pneumoccocal Vaccine

What is Pneumococcal Vaccine used for?

Pneumococcal Vaccine is being studied for meningococcal immunisation in healthy infants and toddlers. It is an investigational quadrivalent meningococcal conjugate vaccine, also referred to as MenACYW conjugate vaccine, and is currently in Phase 3 clinical development.

What does Pneumococcal Vaccine target?

Pneumococcal Vaccine targets meningococcal bacteria, specifically serogroups A, C, Y, and W, as it is a quadrivalent conjugate vaccine. It is designed to elicit an immune response against these four serogroups to provide protection against meningococcal disease.

Who makes Pneumococcal Vaccine?

Pneumococcal Vaccine is being developed by Sanofi, a global biopharmaceutical company. Sanofi is listed on the stock exchange under the ticker symbol SNY.

What phase is Pneumococcal Vaccine in?

Pneumococcal Vaccine is in Phase 3 clinical development. It is an investigational vaccine and has not yet been approved by regulatory authorities. The Phase 3 trial has been completed, with results expected to support potential regulatory submissions.

What clinical trials is Pneumococcal Vaccine in?

Pneumococcal Vaccine has one completed Phase 3 trial, identified as NCT05794230. This study evaluated the vaccine given with routine pediatric vaccines in healthy infants and toddlers in India and South Africa, enrolling 1528 participants aged 6 weeks and older.

Is Pneumococcal Vaccine the same as MenACYW conjugate vaccine?

Yes, Pneumococcal Vaccine is also known as the MenACYW conjugate vaccine. The clinical trial NCT05794230 refers to it as a quadrivalent meningococcal conjugate vaccine, and it is being developed by Sanofi for meningococcal immunisation.