Last reviewed · How we verify

licensed QIVr

Seqirus · Phase 3 active Biologic

QIVr is a quadrivalent influenza vaccine that stimulates the body's immune system to produce antibodies against four different influenza viruses.

QIVr is a quadrivalent influenza vaccine that stimulates the body's immune system to produce antibodies against four different influenza viruses. Used for Prevention of influenza disease caused by four different strains of the influenza virus.

At a glance

Generic namelicensed QIVr
SponsorSeqirus
Drug classvaccine
ModalityBiologic
Therapeutic areaInfectious Disease
PhasePhase 3

Mechanism of action

QIVr works by introducing small, harmless pieces of the influenza virus to the body, which triggers an immune response and allows the body to recognize and fight the virus in the future. This immune response is specific to the four influenza viruses included in the vaccine, providing protection against these strains of the flu.

Approved indications

Common side effects

Key clinical trials

Primary sources

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