Drug intelligence / Profile preview

meningococcal conjugate vaccine (serogroups A, C, W-135, and Y)

Development stage
Approved
Lead developer
Sanofi
Modality
Split/Subunit Vaccines → Inactivated Vaccines → Prophylactic Vaccines → Vaccines & Immunotherapeutics, Recombinant Protein Vaccines → Recombinant Vaccines → Prophylactic Vaccines → Vaccines & Immunotherapeutics
Administration
Intramuscular
01

Overview

The **meningococcal conjugate vaccine (serogroups A, C, W-135, and Y)** is an injectable subunit vaccine designed for **active immunization against invasive disease caused by Neisseria meningitidis serogroups A, C, W-135, and Y**. This vaccine employs polysaccharide antigens from the bacterial capsule of each targeted serogroup conjugated to a protein carrier (such as diphtheria toxoid or CRM197), which enhances immunogenicity by stimulating a T cell–dependent immune response. It does not protect against serogroup B meningococci. Used worldwide and recommended for adolescents, high-risk individuals, travelers to endemic areas (e.g., for Hajj), and during outbreaks, it is highly efficacious and has a strong safety record, with rare but possible local reactions. Common brands include Menactra, Menveo, Menquadfi, and Nimenrix, developed by Sanofi, GSK (GlaxoSmithKline, now Pfizer), and Novartis (now GSK/Pfizer). The vaccine plays a central role in the prevention of bacterial meningitis and septicemia.

Brand names
MenactraMenveoMenquadfiNimenrix
Other names
MenACWY vaccinequadrivalent meningococcal conjugate vaccineMCV4MCV-4MCV 4
02

Targets

MenW CPS (Neisseria meningitidis serogroup W capsular polysaccharide)Neisseria meningitidis group C capsular polysaccharideGroup Y CPS (Neisseria meningitidis group Y capsular polysaccharide)NmA CPS (Neisseria meningitidis group A capsular polysaccharide)

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