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MenACYW-135 conjugate vaccine

Sanofi Pasteur, a Sanofi Company · Phase 3 active Biologic

MenACYW-135 is a conjugate vaccine that stimulates the immune system to produce antibodies against meningococcal serogroups A, C, Y, and W-135.

MenACYW-135 is a conjugate vaccine that stimulates the immune system to produce antibodies against meningococcal serogroups A, C, Y, and W-135. Used for Prevention of invasive meningococcal disease caused by Neisseria meningitidis serogroups A, C, Y, and W-135.

At a glance

Generic nameMenACYW-135 conjugate vaccine
Also known asMENVEO®
SponsorSanofi Pasteur, a Sanofi Company
Drug classConjugate vaccine
ModalityBiologic
Therapeutic areaImmunology / Infectious Disease
PhasePhase 3

Mechanism of action

The vaccine contains polysaccharide capsules from four meningococcal serogroups conjugated to a protein carrier, which enhances immunogenicity and promotes T-cell dependent immune responses. This conjugation approach improves antibody production and immunological memory compared to unconjugated polysaccharide vaccines, providing protection against invasive meningococcal disease caused by these four serogroups.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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