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Immunogenicity and Safety of a Booster Dose of an Investigational Quadrivalent Meningococcal Conjugate Vaccine

Immunogenicity and Safety of a Booster Dose of an Investigational Quadrivalent Meningococcal Conjugate Vaccine in Adolescents and Adults

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02752906
Enrollment
810
Registered
2016-04-27
Start date
2016-04-15
Completion date
2016-12-19
Last updated
2022-04-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Meningitis, Meningococcal Meningitis, Meningococcal Infections

Keywords

Meningitis, Meningococcal Meningitis, Meningococcal Infections, MenACYW Conjugate vaccine, Licensed Meningococcal Conjugate Vaccine (MCV4)

Brief summary

The aim of the study was to describe the safety and antibody response to booster administration with Meningococcal Polysaccharide (Serogroups A, C, Y and W) Tetanus Toxoid (MenACYW) Conjugate vaccine in participants who received their first quadrivalent meningococcal Conjugate vaccine dose in the past 4-10 years. Primary Objective: * To demonstrate the non-inferiority of the vaccine seroresponse of meningococcal serogroups A, C, Y, and W following the administration of a booster dose of MenACYW Conjugate vaccine compared to those observed following the administration of a booster dose of Menactra® in participants who were first vaccinated with 1 dose of a quadrivalent meningococcal vaccine 4 to 10 years before the booster dose. Secondary Objectives: * To evaluate the vaccine seroresponse of meningococcal serogroups A, C, Y, and W measured using human serum bactericidal assay (hSBA) in serum specimens collected 6 days after vaccination in a subset of 120 participants. * To evaluate the antibody responses (geometric mean titers) to serogroups A, C, Y, and W measured using hSBA on Day 0 (pre-vaccination) and Day 30 after vaccination. Observational Objectives: * To describe the antibody titers against meningococcal serogroups A, C, Y, and W measured by hSBA assessed at Day 0, Day 6, and Day 30 days after vaccination. * To describe the antibody responses to the meningococcal serogroups A, C, Y, and W before and 30 days after vaccination with MenACYW Conjugate vaccine or Menactra® measured by rabbit serum bactericidal assay (rSBA) in a subset of participants. * To describe the safety profile of MenACYW Conjugate vaccine compared to that of a licensed Menactra® after booster vaccination.

Detailed description

Healthy adolescents and adults who had received 1 dose of a quadrivalent meningococcal Conjugate vaccine 4 to 10 years previously were randomized to receive either 1 dose of MenACYW Conjugate vaccine or licensed Menactra®. All participants underwent immunogenicity assessment at baseline (pre-vaccination) and post-vaccination and were also evaluated for safety up to Day 180 post-vaccination. In addition, a subset had an additional blood sample collected at 6 days post-vaccination for immunogenicity assessment.

Interventions

Sponsors

Sanofi Pasteur, a Sanofi Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
15 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Aged \>= 15 years on the day of inclusion. * Participant has documented record of having received 1 dose of a quadrivalent meningococcal conjugate vaccine 4 to 10 years prior to study vaccination. * Participant aged 15 to \< 18 years: assent form signed and dated by the participant and informed consent form (ICF) signed and dated by the parent or guardian. * Participant aged \>=18 years: ICF signed and dated by the participant. * Participants aged 15 to \< 18 years: both the participant and parent / guardian were able to attend all scheduled visits and to comply with all trial procedures. * Participants aged \>= 18 years: able to attend all scheduled visits and to comply with all trial procedures.

Exclusion criteria

* Participant was pregnant, lactating, or of childbearing potential (to be considered of non-childbearing potential, a female must be pre-menarche or post-menopausal for at least 1 year, surgically sterile, or using an effective method of contraception or abstinence from at least 4 weeks prior to vaccination until at least 4 weeks after vaccination). * Participation in the 4 weeks preceding the trial vaccination or planned participation during the present trial period in another clinical trial investigating a vaccine, drug, medical device, or medical procedure. * Receipt of any vaccine in the 4 weeks (28 days) preceding the trial vaccination or planned receipt of any vaccine before Day 30 visit except for influenza vaccination, which may be received at least 2 weeks before study investigational vaccines. This exception includes monovalent pandemic influenza vaccines and multivalent influenza vaccines. * Previous vaccination against meningococcal disease with either an investigational or approved meningococcal B vaccine. * Receipt of immune globulins, blood or blood-derived products in the past 3 months. * Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months). * History of meningococcal infection, confirmed either clinically, serologically, or microbiologically. * At high risk for meningococcal infection during the trial (specifically, but not limited to, participants with persistent complement deficiency, with anatomic or functional asplenia, or participants travelling to countries with high endemic or epidemic disease). * Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccine(s) used in the trial or to a vaccine containing any of the same substances. * Personal history of an Arthus-like reaction after vaccination with a tetanus toxoid-containing vaccine. * Personal history of Guillain-Barré syndrome. * Verbal report of thrombocytopenia, contraindicating intramuscular vaccination in the Investigator's opinion. * Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination in the Investigator's opinion. * Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily. * Current alcohol abuse or drug addiction. * Chronic illness that, in the opinion of the investigator, is at a stage where it might interfere with trial conduct or completion. * Moderate or severe acute illness/infection (according to the Investigator's judgment) on the day of vaccination or febrile illness (temperature \>= 100.4°Fahrenheit \[F\]). A prospective participant should not be included in the study until the condition has resolved or the febrile event has subsided. * Receipt of oral or injectable antibiotic therapy within 72 hours prior to the first blood draw. * Identified as an Investigator or employee of the Investigator or study center with direct involvement in the proposed study, or identified as an immediate family member (i.e., parent, spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineDay 30 (post-vaccination)The serum bactericidal assay using human complement (hSBA) vaccine seroresponse for serogroups A, C, Y, and W was defined as post-vaccination hSBA titers \>= 1:16 for participants with pre-vaccination hSBA titers \< 1:8 or at least a 4-fold increase in hSBA titers from pre- to post-vaccination for participants with pre-vaccination hSBA titers \>= 1:8.

Secondary

MeasureTime frameDescription
Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After VaccinationDay 6 (post-vaccination)The hSBA vaccine seroresponse for serogroups A, C, Y, and W was defined as post-vaccination hSBA titers \>= 1:16 for participants with pre-vaccination hSBA titers \< 1:8 or at least a 4-fold increase in hSBA titers from pre- to post-vaccination for participants with pre-vaccination hSBA titers \>= 1:8.
Geometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineDay 30 (post-vaccination)Meningococcal antibody responses against Serogroups A, C, Y, and W were measured by hSBA.
Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineWithin 7 days post-vaccinationA Solicited Reaction (SR) was an Adverse Event (AE) that was prelisted (i.e., solicited) in the electronic case report form (eCRF) and considered to be related to vaccination (adverse drug reaction). Solicited injection site reactions: Pain (Grade 1: no interference with activity, Grade 2: some interference with activity, Grade 3: significantly prevent daily activity), erythema and swelling (Grade 1: \>=25 millimeter \[mm\] to \<= 50 mm, Grade 2: \>=51 to \<=100 mm, Grade 3: \> 100 mm). Solicited systemic reactions: Fever (Grade 1: \>=38.0 degree Celsius (°C) to \<=38.4°C, Grade 2: \>=38.5°C to \<=38.9 °C, Grade 3: \>= 39°C), headache, malaise, and myalgia (Grade 1: no interference with activity, Grade 2: some interference with activity, Grade 3: significant; prevents daily activity. Number of participants with any of the Grade (1, 2 or 3) and with each Grade (1, 2 and 3) solicited injection-site and systemic reactions were reported.

Countries

Puerto Rico, United States

Participant flow

Recruitment details

Study participants were enrolled in 30 centers from 15 April 2016 to 02 August 2016.

Pre-assignment details

A total of 810 participants who met all of the inclusion criteria and none of the exclusion criteria were enrolled and randomized in the study.

Participants by arm

ArmCount
MenACYW Conjugate Vaccine
Healthy, meningococcal vaccine-primed adolescents (\>= 15 to \< 18 years) or adults (\>= 18 years) received a single dose of a MenACYW Conjugate vaccine on Day 0.
403
Menactra ®
Healthy, meningococcal-vaccine-primed adolescents (\>= 15 to \< 18 years) or adults (\>= 18 years) received a single dose of Menactra ® vaccine on Day 0.
407
Total810

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up32
Overall StudyProtocol Violation21
Overall StudyWithdrawal by Subject22

Baseline characteristics

CharacteristicMenACYW Conjugate VaccineTotalMenactra ®
Age, Continuous20.0 Years
STANDARD_DEVIATION 5.96
20.0 Years
STANDARD_DEVIATION 5.77
19.9 Years
STANDARD_DEVIATION 5.59
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Asian
11 Participants14 Participants3 Participants
Race (NIH/OMB)
Black or African American
40 Participants86 Participants46 Participants
Race (NIH/OMB)
More than one race
8 Participants25 Participants17 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race (NIH/OMB)
White
342 Participants682 Participants340 Participants
Region of Enrollment
United States
403 Participants810 Participants407 Participants
Sex: Female, Male
Female
207 Participants407 Participants200 Participants
Sex: Female, Male
Male
196 Participants403 Participants207 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 4020 / 407
other
Total, other adverse events
255 / 402263 / 407
serious
Total, serious adverse events
5 / 4024 / 407

Outcome results

Primary

Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine

The serum bactericidal assay using human complement (hSBA) vaccine seroresponse for serogroups A, C, Y, and W was defined as post-vaccination hSBA titers \>= 1:16 for participants with pre-vaccination hSBA titers \< 1:8 or at least a 4-fold increase in hSBA titers from pre- to post-vaccination for participants with pre-vaccination hSBA titers \>= 1:8.

Time frame: Day 30 (post-vaccination)

Population: Per-Protocol Analysis Set-2 (PPAS2): included all participants who had no protocol deviations (not meet inclusion/exclusion criteria, participant did not received vaccine, administration of vaccine not done as per-protocol). PPAS2 defined for evaluating the immune response of MenACYW vaccine measured by hSBA assessed at Day 30 after vaccination.

ArmMeasureGroupValue (NUMBER)
MenACYW Conjugate VaccinePercentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup C97.1 percentage of participants
MenACYW Conjugate VaccinePercentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup W98.2 percentage of participants
MenACYW Conjugate VaccinePercentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup Y97.4 percentage of participants
MenACYW Conjugate VaccinePercentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup A92.2 percentage of participants
Menactra ®Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup C91.8 percentage of participants
Menactra ®Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup A87.1 percentage of participants
Menactra ®Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup Y95.6 percentage of participants
Menactra ®Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup W90.7 percentage of participants
Comparison: Serogroup A95% CI: [0.735, 9.38]
Comparison: Serogroup C95% CI: [2.16, 8.76]
Comparison: Serogroup Y95% CI: [-0.907, 4.55]
Comparison: Serogroup W95% CI: [4.3, 10.9]
Secondary

Geometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine

Meningococcal antibody responses against Serogroups A, C, Y, and W were measured by hSBA.

Time frame: Day 30 (post-vaccination)

Population: Analysis was performed on PPAS2.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
MenACYW Conjugate VaccineGeometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup A497 titers (1/dilution)
MenACYW Conjugate VaccineGeometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup C2618 titers (1/dilution)
MenACYW Conjugate VaccineGeometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup Y2070 titers (1/dilution)
MenACYW Conjugate VaccineGeometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup W1747 titers (1/dilution)
Menactra ®Geometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup W723 titers (1/dilution)
Menactra ®Geometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup A296 titers (1/dilution)
Menactra ®Geometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup Y811 titers (1/dilution)
Menactra ®Geometric Mean Titers Against Meningococcal Serogroups A, C, Y, and W Antibodies Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSerogroup C599 titers (1/dilution)
Secondary

Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine

A Solicited Reaction (SR) was an Adverse Event (AE) that was prelisted (i.e., solicited) in the electronic case report form (eCRF) and considered to be related to vaccination (adverse drug reaction). Solicited injection site reactions: Pain (Grade 1: no interference with activity, Grade 2: some interference with activity, Grade 3: significantly prevent daily activity), erythema and swelling (Grade 1: \>=25 millimeter \[mm\] to \<= 50 mm, Grade 2: \>=51 to \<=100 mm, Grade 3: \> 100 mm). Solicited systemic reactions: Fever (Grade 1: \>=38.0 degree Celsius (°C) to \<=38.4°C, Grade 2: \>=38.5°C to \<=38.9 °C, Grade 3: \>= 39°C), headache, malaise, and myalgia (Grade 1: no interference with activity, Grade 2: some interference with activity, Grade 3: significant; prevents daily activity. Number of participants with any of the Grade (1, 2 or 3) and with each Grade (1, 2 and 3) solicited injection-site and systemic reactions were reported.

Time frame: Within 7 days post-vaccination

Population: Analysis was performed on Safety Analysis Set which included participants who have received at least one dose of the study vaccine and have any safety data available. Here 'number analyzed' signifies number of participants with available data for specified category.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineErythema-Grade 30 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMyalgia-Grade 38 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineFever-Any Grade0 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccinePain-Grade 1141 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccinePain-Grade 34 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSwelling-Any Grade16 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineErythema-Grade 22 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineFever-Grade 10 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineErythema-Any Grade20 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSwelling-Grade 23 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineFever-Grade 20 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineHeadache-Any Grade151 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineFever-Grade 30 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSwelling-Grade 113 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineHeadache-Grade 252 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineHeadache-Grade 190 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineHeadache-Grade 39 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMalaise-Any Grade110 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccinePain-Grade 233 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMalaise-Grade 162 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineErythema-Grade 118 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMalaise-Grade 237 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSwelling-Grade 30 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMalaise-Grade 311 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMyalgia-Any Grade146 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMyalgia-Grade 240 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMyalgia-Grade 198 Participants
MenACYW Conjugate VaccineNumber of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccinePain-Any Grade178 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMyalgia-Grade 1120 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccinePain-Any Grade196 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccinePain-Grade 1154 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccinePain-Grade 234 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccinePain-Grade 38 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineErythema-Any Grade6 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSwelling-Any Grade3 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSwelling-Grade 11 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSwelling-Grade 22 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineSwelling-Grade 30 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineFever-Any Grade2 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineFever-Grade 10 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineHeadache-Any Grade134 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineHeadache-Grade 173 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineHeadache-Grade 314 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMalaise-Grade 314 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMyalgia-Grade 227 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMyalgia-Grade 39 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineErythema-Grade 15 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineErythema-Grade 21 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineErythema-Grade 30 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineFever-Grade 21 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineFever-Grade 31 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineHeadache-Grade 247 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMalaise-Any Grade108 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMalaise-Grade 164 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMalaise-Grade 230 Participants
Menactra ®Number of Participants With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® VaccineMyalgia-Any Grade156 Participants
Secondary

Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After Vaccination

The hSBA vaccine seroresponse for serogroups A, C, Y, and W was defined as post-vaccination hSBA titers \>= 1:16 for participants with pre-vaccination hSBA titers \< 1:8 or at least a 4-fold increase in hSBA titers from pre- to post-vaccination for participants with pre-vaccination hSBA titers \>= 1:8.

Time frame: Day 6 (post-vaccination)

Population: Per-Protocol Analysis Set-1 (PPAS1): included all participants who received at least 1 dose of study vaccine(s) and had no protocol deviations (not meet inclusion/exclusion criteria, participant did not received vaccine). PPAS1 defined for evaluating the immune response of MenACYW vaccine measured by hSBA assessed at Day 6 after vaccination.

ArmMeasureGroupValue (NUMBER)
MenACYW Conjugate VaccinePercentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After VaccinationSerogroup A72.7 percentage of participants
MenACYW Conjugate VaccinePercentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After VaccinationSerogroup C83.6 percentage of participants
MenACYW Conjugate VaccinePercentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After VaccinationSerogroup Y90.9 percentage of participants
MenACYW Conjugate VaccinePercentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After VaccinationSerogroup W94.5 percentage of participants
Menactra ®Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After VaccinationSerogroup W83.9 percentage of participants
Menactra ®Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After VaccinationSerogroup A66.1 percentage of participants
Menactra ®Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After VaccinationSerogroup Y83.9 percentage of participants
Menactra ®Percentage of Participants With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 6 After VaccinationSerogroup C87.1 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026