Designed to produce an exact match to the WHO-selected strains.4,6

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Key Features
  • Efficacy of FLUCELVAX QUADRIVALENT was demonstrated in children and adolescents 2 through 17 years1
  • Demonstrated safety profile in patients 6 months and older1
  • Proven noninferior to a US-licensed comparator quadrivalent influenza vaccine for patients 6 months through 3 years based on data demonstrating immunogenicity and seroconversion1
  • Proven noninferior to FLUCELVAX® (Influenza Vaccine) for patients 4 through 17 years based on data demonstrating immunogenicity and seroconversion1
  • Proven noninferior to FLUCELVAX in adults 18 years and older based on data demonstrating immunogenicity and seroconversion1
  • Free of eggs and antibiotics1
  • 0.5-mL pre-filled syringes contain no preservative; 5-mL multi-dose vials contain thimerosal, a mercury derivative, added as a preservative1

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FLUCELVAX® QUADRIVALENT helps prevent seasonal influenza in patients 6 months and older.1

FLUCELVAX QUADRIVALENT (Influenza Vaccine) was proven noninferior to a US-licensed comparator quadrivalent influenza vaccine for patients 6 months through 3 years (Study 1) and noninferior to FLUCELVAX (Influenza Vaccine) for patients 4 through 17 years (Study 5) based on data demonstrating immunogenicity and seroconversion.

Efficacy of FLUCELVAX QUADRIVALENT against culture and/or RT-PCR-confirmed influenza was demonstrated in a clinical study over 3 influenza seasons (Study 2).*1

VACCINE EFFICACY OF FLUCELVAX QUADRIVALENT IN THOSE 2 THROUGH 17 YEARS*1

*Absolute efficacy of FLUCELVAX QUADRIVALENT was evaluated in Study 2, a multinational, randomized, observer-blind, non-influenza vaccine comparator-controlled study during the following 3 influenza seasons: Southern Hemisphere 2017, Northern Hemisphere 2017-2018, and Northern Hemisphere 2018-2019. A total of 4513 children and adolescents 2 through 17 years received FLUCELVAX QUADRIVALENT (N=2258) or a non-influenza (meningococcal [Groups A, C, Y, and W-135] oligosaccharide diphtheria CRM197 conjugate) comparator vaccine (N=2255). Children 2 through 8 years of age received either 1 or 2 doses (separated by 4 weeks) of FLUCELVAX QUADRIVALENT or comparator vaccine depending on the subject's prior influenza vaccination history. Children in the 2-dose comparator group received non-influenza comparator as the first dose and saline placebo as the second dose. Children and adolescents 9 through 17 years of age received a single dose of FLUCELVAX QUADRIVALENT or non-influenza comparator vaccine. The full analysis set (FAS) for efficacy consisted of 4509 children and adolescents. FLUCELVAX QUADRIVALENT met the pre-defined success criterion defined as the lower limit of the 2-sided 95% CI of absolute vaccine efficacy greater than 20%. Antigenically matched, culture-confirmed influenza 95% CI: 53.6-71.5; culture-confirmed influenza 95% CI: 51.3-68.5; RT-PCR or culture-confirmed influenza 95% CI: 45.7-62.1.1

FLUCELVAX QUADRIVALENT (Influenza Vaccine) was proven noninferior to FLUCELVAX in adults 18 years and older (Study 3) based on data demonstrating on immunogenicity and seroconversion.1

The efficacy data of FLUCELVAX are relevant to FLUCELVAX QUADRIVALENT, as both vaccines are manufactured using the same process and have overlapping compositions.1

DEMONSTRATED EFFICACY OF FLUCELVAX (Influenza Vaccine) AGAINST CULTURE-CONFIRMED INFLUENZA IN THOSE 18 THROUGH 49 YEARS†1

†A multinational, randomized, observer-blind, placebo-controlled trial was performed to assess clinical efficacy and safety of FLUCELVAX during the 2007-2008 influenza season in adults aged 18 through 49 years (Study 4). A total of 11,404 adults were enrolled to receive FLUCELVAX (N=3828), AGRIFLU (N=3676), or placebo (N=3900) in a 1:1:1 ratio. FLUCELVAX met the pre-defined success criterion defined as the lower limit of the 1-sided 97.5% CI for the estimate of the vaccine efficacy relative to placebo >40%. Antigenically matched influenza lower limit of the 1-sided 97.5% CI: 61.0; all culture-confirmed influenza lower limit of the 1-sided 97.5% CI: 55.0.1

DEMONSTRATED SAFETY PROFILE IN CHILDREN AND ADOLESCENTS 6 MONTHS THROUGH 17 YEARS

The safety of FLUCELVAX QUADRIVALENT was evaluated in children and adolescents in two clinical studies, Studies 1 and 2.1

MOST COMMON (≥10%) LOCAL AND SYSTEMIC ADVERSE REACTIONS OBSERVED IN CHILDREN WITHIN 7 DAYS OF FIRST DOSE OF VACCINATION†1

*Study 1 was a randomized, observer-blind, multicenter study in children 6 months through 3 years of age. The solicited safety population consisted of 2348 subjects who received FLUCELVAX QUADRIVALENT (N=1564) or a US-licensed quadrivalent influenza vaccine comparator (N=784).4

†Study 2 was a multiseason, multinational, randomized, observer-blind study in children 2 through 17 years of age. The solicited safety population included a total of 4509 children and adolescents 2 through 17 years of age who received FLUCELVAX QUADRIVALENT (N=2255) or a non-influenza comparator vaccine (N=2254)4

DEMONSTRATED SAFETY PROFILE IN ADULTS 18 YEARS AND OLDER

FLUCELVAX® QUADRIVALENT has a demonstrated safety profile similar to comparator trivalent vaccines (TIV1c or TIV2c).1

MOST COMMON (≥10%) LOCAL AND SYSTEMIC ADVERSE REACTIONS OBSERVED IN ADULTS WITHIN 7 DAYS OF VACCINATION‡1

‡The immunogenicity and safety of FLUCELVAX QUADRIVALENT in adults 18 years and older was evaluated in Study 1, a randomized, double-blind, controlled study conducted in the US (Study 1). In this study, adults received FLUCELVAX QUADRIVALENT or 1 of 2 FLUCELVAX trivalent formulations (FLUCELVAX QUADRIVALENT, N=1334, TIV1c, N=677, or TIV2c, N=669). The safety population included a total of 2680 adults 18 years of age and older; 1340 adults 18 through 64 years of age; and 1340 adults 65 years of age and older. The immunogenicity endpoints were the percentage of adults who achieved seroconversion and the percentage of adults with a postvaccination HI titer ≥1:401

For intramuscular injection only.1

Administer FLUCELVAX QUADRIVALENT as a 0.5-mL dose for people 6 months and older.*1

FLUCELVAX QUADRIVALENT is supplied in 2 product presentations: as a package of ten 0.5-mL pre-filled, needleless syringes and as a 5-mL multi-dose vial.1

FLUCELVAX QUADRIVALENT contains no egg protein and no antibiotics.1

*1 or 2 doses depends on vaccination history as per Advisory Committee on Immunization Practices annual recommendations on prevention and control of influenza with vaccines

Store FLUCELVAX QUADRIVALENT refrigerated at 2 °C to 8 °C (36 °F to 46 °F). Protect from light. Do not freeze. Discard if the vaccine has been frozen. Do not use after expiration date.1

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Choose cell-based FLUCELVAX QUADRIVALENT for your eligible patients 6+ months1

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Influenza impacts millions of people in the US

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Explore Other Flu Vaccines in the Seqirus Portfolio

Please see Important Safety Information and full US Prescribing Information on each vaccine's respective product page.

IMPORTANT SAFETY INFORMATION

CONTRAINDICATIONS

Do not administer FLUAD QUADRIVALENT or AFLURIA QUADRIVALENT to anyone with a history of severe allergic reaction (e.g. anaphylaxis) to any component of the vaccine, including egg protein, or to a previous influenza vaccine. Do not administer FLUCELVAX QUADRIVALENT to anyone with a history of severe allergic reactions (e.g. anaphylaxis) to any component of the vaccine.

WARNINGS AND PRECAUTIONS

If Guillain-Barré syndrome (GBS) has occurred within 6 weeks of receipt of prior influenza vaccine, the decision to give FLUAD QUADRIVALENT, AFLURIA QUADRIVALENT or FLUCELVAX QUADRIVALENT should be based on careful consideration of the potential benefits and risks.

Appropriate medical treatment and supervision must be available to manage possible anaphylactic reactions following administration of the vaccine.

Syncope (fainting) may occur in association with administration of injectable vaccines including FLUAD QUADRIVALENT and FLUCELVAX QUADRIVALENT. Syncope can be accompanied by transient neurological signs such as visual disturbance, paresthesia, and tonic-clonic limb movements. Ensure procedures are in place to avoid falling injury and to restore cerebral perfusion following syncope by maintaining a supine or Trendelenburg position.

The immune response to FLUAD QUADRIVALENT, AFLURIA QUADRIVALENT and FLUCELVAX QUADRIVALENT in immunocompromised persons, including individuals receiving immunosuppressive therapy, may be lower than in immunocompetent individuals.

Vaccination with FLUAD QUADRIVALENT, AFLURIA QUADRIVALENT or FLUCELVAX QUADRIVALENT may not protect all vaccine recipients against influenza disease.

ADVERSE REACTIONS

FLUAD QUADRIVALENT:

The most common (≥ 10%) local and systemic reactions with FLUAD QUADRIVALENT in elderly subjects 65 years of age and older were injection site pain (16.3%), headache (10.8%) and fatigue (10.5%).

AFLURIA QUADRIVALENT:

AFLURIA QUADRIVALENT administered by needle and syringe:
In adults 18 through 64 years, the most commonly reported injection-site adverse reaction was pain (≥ 40%). The most common systemic adverse events were myalgia and headache (≥ 20%).

In adults 65 years of age and older, the most commonly reported injection-site adverse reaction was pain (≥ 20%). The most common systemic adverse event was myalgia (≥ 10%).
In children 5 through 8 years, the most commonly reported injection-site adverse reactions were pain (≥ 50%), redness and swelling (≥ 10%). The most common systemic adverse event was headache (≥ 10%).

In children 9 through 17 years, the most commonly reported injection-site adverse reactions were pain (≥ 50%), redness and swelling (≥ 10%). The most common systemic adverse events were headache, myalgia, and malaise and fatigue (≥ 10%).

In children 6 months through 35 months of age, the most commonly reported injection-site reactions were pain and redness (≥ 20%). The most common systemic adverse events were irritability (≥ 30%), diarrhea and loss of appetite (≥ 20%).

In children 36 through 59 months of age, the most commonly reported injection site reactions were pain (≥ 30%) and redness (≥ 20%). The most commonly reported systemic adverse events were malaise and fatigue, and diarrhea (≥ 10%).

The safety experience with AFLURIA (trivalent formulation) is relevant to AFLURIA QUADRIVALENT because both vaccines are manufactured using the same process and have overlapping compositions:

In adults 18 through 64 years of age, the most commonly reported injection-site adverse reactions with AFLURIA (trivalent formulation) when administered by the PharmaJet Stratis Needle-Free Injection System were tenderness (≥ 80%), swelling, pain, redness (≥ 60%), itching (≥ 20%) and bruising (≥ 10%). The most common systemic adverse events were myalgia, malaise (≥ 30%), and headache (≥ 20%).

FLUCELVAX QUADRIVALENT:

In children 6 months through 3 years of age who received FLUCELVAX QUADRIVALENT, the most commonly reported injection-site adverse reactions were tenderness (27.9%), erythema (25.8%), induration (17.3%) and ecchymosis (10.7%). The most common systemic adverse reactions were irritability (27.9%), sleepiness (26.9%), diarrhea (17.9%) and change of eating habits (17.4%).

In children 2 through 8 years of age who received FLUCELVAX QUADRIVALENT, the most commonly reported injection-site adverse reactions were tenderness (28.7%), pain (27.9%) and erythema (21.3%), induration (14.9%) and ecchymosis (10.0%). The most common systemic adverse reactions were sleepiness (14.9%), headache (13.8%), fatigue (13.8%), irritability (13.8%) and loss of appetite (10.6%).

In children and adolescents 9 through 17 years of age who received FLUCELVAX QUADRIVALENT, the most commonly reported injection-site adverse reactions were injection site pain (21.7%), erythema (17.2%) and induration (10.5%). The most common systemic adverse reactions were headache (18.1%) and fatigue (17.0%).

In adults 18 through 64 years of age who received FLUCELVAX QUADRIVALENT, the most commonly reported injection-site adverse reactions were pain (45.4%), erythema (13.4%) and induration (11.6%). The most common systemic adverse reactions were headache (18.7%), fatigue (17.8%) and myalgia (15.4%).

In adults ≥65 years of age who received FLUCELVAX QUADRIVALENT, the most commonly reported injection-site adverse reactions were pain (21.6%) and erythema (11.9%).

To report SUSPECTED ADVERSE REACTIONS, contact Seqirus at 1-855-358-8966 or VAERS at 1-800-822-7967 or www.vaers.hhs.gov.

Before administration, please see the full US Prescribing Information for FLUAD QUADRIVALENT, AFLURIA QUADRIVALENT and FLUCELVAX QUADRIVALENT.

FLUAD® QUADRIVALENT, AFLURIA® QUADRIVALENT and FLUCELVAX® QUADRIVALENT are registered trademarks of Seqirus UK Limited or its affiliates.

PharmaJet® and STRATIS® are registered trademarks of PharmaJet.

References:

1. FLUCELVAX QUADRIVALENT. Package insert. Seqirus Inc; 2021. 2. Data on file. Seqirus Inc; 2021. 3. Medicare.gov. Flu shots. Accessed February 12, 2021. https://www.medicare.gov/coverage/flushots. 4. Rajaram S, Boikos C, Gelone DK, Gandhi A. Influenza vaccines: the potential benefits of cell-culture isolation and manufacturing. Ther Adv Vaccines Immunother. 2020;8:2515135520908121. doi:10.1177/2515135520908121  5. Centers for Disease Control and Prevention. Cell-based flu vaccines. Accessed August 3, 2021. https://www.cdc.gov/flu/prevent/cell-based.htm6. Mabrouk T, Ellis RW. Influenza vaccine technologies and the use of the cell-culture process (cell-culture influenza vaccine). Dev Biol. 2002;110:125-134.7. Centers for Disease Control and Prevention. Key facts about seasonal flu vaccine. Accessed September 9, 2021. https://www.cdc.gov/flu/prevent/keyfacts.htm