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Antibody Persistence and Response to Re-vaccination With Either Menactra® or Menomune® 3 Years After Initial Vaccination

Antibody Persistence and Response to Re-vaccination With Either Menactra® or Menomune® Vaccine Approximately Three Years Following Initial Vaccination in Adults Who Participated in Trial MTA29

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01239043
Enrollment
139
Registered
2010-11-11
Start date
2010-11-30
Completion date
2012-02-29
Last updated
2012-06-25

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

Conditions

Meningitis, Meningococcal Infections, Meningococcal Meningitis

Keywords

Meningitis, Meningococcal Meningitis, Meningococcal Infections, Menactra®, Menomune®, Meningococcal vaccine

Brief summary

The purpose of this trial is to describe antibody persistence and response to re-vaccination with either Menactra® or Menomune® vaccine approximately three years following initial vaccination in adults who participated in trial MTA29 (NCT00874549). Objectives: * To describe the rates of immediate reactions, solicited injection-site and systemic reactions, all unsolicited adverse events, and serious adverse events following vaccination. * To evaluate persistence of serum bactericidal antibodies in subjects who received Menactra® or Menomune® vaccine approximately three years ago. * To evaluate the immune response to serogroups A, C, Y, and W-135 in subjects re-vaccinated with either Menactra® or Menomune® vaccine.

Detailed description

Participants who were randomized and received either Menactra® or Menomune® vaccine in trial MTA29 will receive 1 dose of either Menactra® or Menomune®, respectively on Day 0 and will be followed-up for 28 days post-vaccination.

Interventions

BIOLOGICALMenomune®: A, C, Y, W 135 Meningococcal Polysaccharide

0.5 mL, Subcutaneous

BIOLOGICALMenactra®: Meningococcal (A, C, Y and W 135) Polysaccharide Diphtheria Toxoid Conjugate

0.5 mL, Intramuscular

Sponsors

Sanofi
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

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

Inclusion criteria

* Aged 56 years or older on the day of inclusion. * Received the appropriate Menactra or Menomune vaccine as assigned by randomization in Trial MTA29. * Ambulatory and healthy, as determined by medical history. * Informed consent form has been signed and dated. * Able to attend all scheduled visits and to comply with all trial procedures. * For a woman of childbearing potential, use of an effective method of contraception or abstinence from at least 4 weeks prior to vaccination until at least 4 weeks after vaccination.

Exclusion criteria

* Any condition which, in the opinion of the Investigator, would pose a health risk to the participant or interfere with the evaluation of the vaccine. * Known pregnancy, or a positive pregnancy test. * Currently breastfeeding a child. * History of documented invasive meningococcal disease. * Participation in another clinical trial investigating a vaccine, drug, medical device, or medical procedure in the 4 weeks preceding the trial vaccination. * Planned participation in another clinical trial during the present trial period. * Receipt of any meningococcal vaccine since participation in trial MTA29. * Receipt of any vaccine in the 4 weeks preceding the trial vaccination, except for influenza vaccination, which may be received at least two weeks before trial vaccination. * Planned receipt of any vaccine in the 4 weeks following the trial vaccination. * Receipt of blood or blood-derived products in the past 3 months, which might interfere with assessment of the immune response. * 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). * Laboratory-confirmed seropositivity for Human Immunodeficiency Virus (HIV), Hepatitis B, or Hepatitis C. * Previous personal history of Guillain-Barré Syndrome (GBS). * Known systemic hypersensitivity to any of the vaccine components, latex, or history of a life-threatening reaction to the vaccines used in the trial or to a vaccine containing any of the same substances. * Laboratory-confirmed thrombocytopenia, contraindicating intramuscular (IM) vaccination. * Bleeding disorder or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM vaccination. * Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily. * Current alcohol or drug use that, in the opinion of the Investigator, might interfere with the ability to comply with trial procedures. * Not available for the entire study period or unable to attend the scheduled visits or to comply with the study procedures. * Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with trial conduct or completion. * Identified as employees of the Investigator or study center, with direct involvement in the proposed study or other studies under the direction of that Investigator or study center, as well as family members (i.e., immediate, husband, wife and their children, adopted or natural) of the employees or the Investigator.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineDay 0 to Day 7 post-vaccinationSolicited Injection Site Reactions: Pain, Erythema, Swelling. Solicited Systemic Reactions: Fever (Temperature), Headache, Malaise, Myalgia. Grade 3 reactions were defined as: Pain, headache, malaise, and myalgia - significant, prevents daily activity; Erythema and swelling - \> 100 mm; Fever, temperature of ≥ 39.0ºC or ≥ 102.1ºF.

Other

MeasureTime frameDescription
Summary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Day 0 (pre-vaccination) and Day 28 post-vaccinationTiters of antibodies to serogroups A, C, Y, and W-135 for each participant were measured by serum bactericidal assay with human complement (SBA-HC).
Number of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.Day 0 (pre-vaccination) and Day 28 post-vaccinationTiters of antibodies to serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with human complement (SBA-HC).
Geometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineDay 0 (pre-vaccination) and Day 28 post-vaccinationGeometric mean titers (GMTs) of antibodies to serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with human complement (SBA-HC).
Number of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineDay 0 (pre-vaccination) and Day 28 post-vaccinationTiters of antibodies to vaccine serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with baby rabbit complement (SBA-BR).
Number of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra VaccineDay 0 (pre-vaccination) and Day 28 post-vaccinationTiters of antibodies to serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with baby rabbit complement (SBA-BR).
Geometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Day 0 (pre-vaccination) and Day 28 post-vaccinationGeometric mean titers (GMTs) of antibodies to serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with baby rabbit complement (SBA-BR).

Countries

United States

Participant flow

Recruitment details

Participants were enrolled from 08 November 2010 to 16 December 2010 at 6 US clinical centers.

Pre-assignment details

A total of 139 participants who met the inclusion, but no exclusion criteria were enrolled and vaccinated.

Participants by arm

ArmCount
Menomune® Vaccine Group
All participants had received Menomune® vaccine in Study MTA29 and received a single dose of Menomune® on Day 0 in the present trial.
36
Menactra® Vaccine Group
All participants had received Menactra® vaccine in Study MTA29 and received a single dose of Menactra® on Day 0 in the present trial.
103
Total139

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyProtocol Violation21

Baseline characteristics

CharacteristicMenactra® Vaccine GroupMenomune® Vaccine GroupTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
75 Participants28 Participants103 Participants
Age, Categorical
Between 18 and 65 years
28 Participants8 Participants36 Participants
Age Continuous71.1 Years
STANDARD_DEVIATION 6.8
71.8 Years
STANDARD_DEVIATION 7.2
71.3 Years
STANDARD_DEVIATION 6.9
Region of Enrollment
United States
103 Participants36 Participants139 Participants
Sex: Female, Male
Female
57 Participants20 Participants77 Participants
Sex: Female, Male
Male
46 Participants16 Participants62 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
9 / 3633 / 103
serious
Total, serious adverse events
0 / 360 / 103

Outcome results

Primary

Number of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra Vaccine

Solicited Injection Site Reactions: Pain, Erythema, Swelling. Solicited Systemic Reactions: Fever (Temperature), Headache, Malaise, Myalgia. Grade 3 reactions were defined as: Pain, headache, malaise, and myalgia - significant, prevents daily activity; Erythema and swelling - \> 100 mm; Fever, temperature of ≥ 39.0ºC or ≥ 102.1ºF.

Time frame: Day 0 to Day 7 post-vaccination

Population: Solicited reactions were assessed in all subjects who received at a dose of study vaccine, according to the vaccine actually received (Safety Analysis Population).

ArmMeasureGroupValue (NUMBER)
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Fever0 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Headache1 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Malaise3 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Pain8 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Pain0 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Erythema9 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Erythema0 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Swelling1 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Swelling0 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Fever0 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Headache8 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Malaise0 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Myalgia6 Participants
Menomune® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Myalgia1 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Malaise8 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Fever0 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Headache16 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Swelling2 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Headache1 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Myalgia22 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Swelling0 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Pain33 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Malaise0 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Pain1 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Fever0 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineAny Erythema0 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Myalgia1 Participants
Menactra® Vaccine GroupNumber of Participants Reporting Solicited Injection Site or Systemic Reactions Following Vaccination With Either Menomune or Menactra VaccineGrade 3 Erythema0 Participants
Other Pre-specified

Geometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine

Geometric mean titers (GMTs) of antibodies to serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with human complement (SBA-HC).

Time frame: Day 0 (pre-vaccination) and Day 28 post-vaccination

Population: GMTs were assessed in participants who met all inclusion, but no exclusion criteria; received assigned study vaccine; and had serology samples with valid test results (Per-Protocol Population).

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup C Post-vaccination (N = 32, 99)14.4 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup A Post-vaccination (N = 31, 99)15.6 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup Y Pre-vaccination (N = 32, 99)7.2 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup A Pre-vaccination (N = 32, 99)7.2 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup Y Post-vaccination (N = 31, 99)11.4 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup C Pre-vaccination (N = 32, 99)9.9 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 Pre-vaccination (N = 32, 99)4.1 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 Post-vaccination (N = 31, 99)6.4 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 Post-vaccination (N = 31, 99)80.1 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup A Pre-vaccination (N = 32, 99)10.1 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup A Post-vaccination (N = 31, 99)87.1 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup C Pre-vaccination (N = 32, 99)6.6 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup C Post-vaccination (N = 32, 99)93.4 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup Y Pre-vaccination (N = 32, 99)6.2 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup Y Post-vaccination (N = 31, 99)96.1 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 Pre-vaccination (N = 32, 99)7.6 Titers
Other Pre-specified

Geometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)

Geometric mean titers (GMTs) of antibodies to serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with baby rabbit complement (SBA-BR).

Time frame: Day 0 (pre-vaccination) and Day 28 post-vaccination

Population: GMTs were assessed in participants who met all inclusion, but no exclusion criteria; received assigned study vaccine; and had serology samples with valid test results (Per-Protocol Population).

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup A Pre-vaccination (N = 32, 99)22.1 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup A Post -vccination (N = 31, 98)119.7 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup C Pre-vaccination (N = 32, 99)39.7 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup C Post-vaccination (N = 31, 98)109.5 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup Y Pre-vaccination (N = 32, 99)71.3 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup Y Post-vaccination (N = 31, 99)200.2 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup W-135 Pre-vaccination (N = 32, 99)74.5 Titers
Menomune® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup W-135 Post-vaccination (N = 31, 98)214.1 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup W-135 Post-vaccination (N = 31, 98)534.2 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup A Pre-vaccination (N = 32, 99)20.2 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup Y Pre-vaccination (N = 32, 99)70.6 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup A Post -vccination (N = 31, 98)396.9 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup W-135 Pre-vaccination (N = 32, 99)79 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup C Pre-vaccination (N = 32, 99)35 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup Y Post-vaccination (N = 31, 99)556.9 Titers
Menactra® Vaccine GroupGeometric Mean Titers of Individual Antibodies to Vaccine Antigens Following Vaccination With Either Menomune or Menactra Vaccine (SBA-BR)Serogroup C Post-vaccination (N = 31, 98)698.9 Titers
Other Pre-specified

Number of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra Vaccine

Titers of antibodies to serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with baby rabbit complement (SBA-BR).

Time frame: Day 0 (pre-vaccination) and Day 28 post-vaccination

Population: Antibody titers were assessed in participants who met all inclusion, but no exclusion criteria; received assigned study vaccine; and had serology samples with valid test results (Per-Protocol Population).

ArmMeasureGroupValue (NUMBER)
Menomune® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra VaccineSerogroup A (N = 31, 98)12 Participants
Menomune® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra VaccineSerogroup C (N = 31, 98)10 Participants
Menomune® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra VaccineSerogroup Y (N = 31, 99)17 Participants
Menomune® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 (N = 31, 98)13 Participants
Menactra® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 (N = 31, 98)67 Participants
Menactra® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra VaccineSerogroup A (N = 31, 98)69 Participants
Menactra® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra VaccineSerogroup Y (N = 31, 99)60 Participants
Menactra® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline After Vaccination With Either Menomune or Menactra VaccineSerogroup C (N = 31, 98)78 Participants
Other Pre-specified

Number of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.

Titers of antibodies to serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with human complement (SBA-HC).

Time frame: Day 0 (pre-vaccination) and Day 28 post-vaccination

Population: Antibody titers were assessed in participants who met all inclusion, but no exclusion criteria; received assigned study vaccine; and had serology samples with valid test results (Per-Protocol Population).

ArmMeasureGroupValue (NUMBER)
Menomune® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.Serogroup A (N = 31, 99)8 Participants
Menomune® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.Serogroup C (N = 32, 99)5 Participants
Menomune® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y (N = 31, 99)4 Participants
Menomune® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 (N = 31, 99)2 Participants
Menactra® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 (N = 31, 99)73 Participants
Menactra® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.Serogroup A (N = 31, 99)70 Participants
Menactra® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y (N = 31, 99)75 Participants
Menactra® Vaccine GroupNumber of Participants Who Achieved a Four-Fold Rise in Bactericidal Antibody Titers From Baseline Following Vaccination With Either Menomune or Menactra Vaccine.Serogroup C (N = 32, 99)77 Participants
Other Pre-specified

Number of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra Vaccine

Titers of antibodies to vaccine serogroups A, C, Y, and W-135 were measured by serum bactericidal assay with baby rabbit complement (SBA-BR).

Time frame: Day 0 (pre-vaccination) and Day 28 post-vaccination

Population: Antibody titers were assessed in participants who met all inclusion, but no exclusion criteria; received assigned study vaccine and serology samples with valid test results (Per-Protocol Population).

ArmMeasureGroupValue (NUMBER)
Menomune® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup A Pre-vaccination (N = 32, 99)12 Participants
Menomune® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup A Post-vaccination (N = 31, 98)21 Participants
Menomune® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup C Pre-vaccination (N = 32, 99)17 Participants
Menomune® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup C Post-vaccination (N = 31, 98)20 Participants
Menomune® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup Y Pre-vaccination (N = 32, 99)26 Participants
Menomune® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup Y Post-vaccination (N = 31, 99)29 Participants
Menomune® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 Pre-vaccination (N = 32, 99)25 Participants
Menomune® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 Post-vaccination (N = 31, 98)27 Participants
Menactra® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 Post-vaccination (N = 31, 98)91 Participants
Menactra® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup A Pre-vaccination (N = 32, 99)35 Participants
Menactra® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup Y Pre-vaccination (N = 32, 99)75 Participants
Menactra® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup A Post-vaccination (N = 31, 98)87 Participants
Menactra® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup W-135 Pre-vaccination (N = 32, 99)75 Participants
Menactra® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup C Pre-vaccination (N = 32, 99)53 Participants
Menactra® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup Y Post-vaccination (N = 31, 99)94 Participants
Menactra® Vaccine GroupNumber of Participants With Antibody Titers at ≥ 1:8 for Each of the Vaccine Serogroups Before and After Vaccination With Either Menomune or Menactra VaccineSerogroup C Post-vaccination (N = 31, 98)91 Participants
Other Pre-specified

Summary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.

Titers of antibodies to serogroups A, C, Y, and W-135 for each participant were measured by serum bactericidal assay with human complement (SBA-HC).

Time frame: Day 0 (pre-vaccination) and Day 28 post-vaccination

Population: Antibody titers were assessed in participants who met all inclusion, but no exclusion criteria; received assigned study vaccine; and had serology samples with valid test results (Per-Protocol Population).

ArmMeasureGroupValue (NUMBER)
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y ≥ 1:4 Pre-vaccination (N = 32, 99)15 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup C ≥1:4 Pre-vaccination (N = 32, 99)20 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y ≥ 1:8 Pre-vaccination (N = 32, 99)14 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup A ≥ 1:8 Post-vaccination (N = 31, 99)24 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y ≥1:4 Post-vaccination (N = 31, 99)19 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup C ≥ 1:8 Pre-vaccination (N = 32, 99)17 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y≥1:8 Post -vaccination (N = 31, 99)18 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup A ≥ 1:8 Pre-vaccination (N = 32, 99)14 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 ≥1:4 Pre-vaccination (N = 32, 99)15 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup C ≥1:4 Post-vaccination (N = 32, 99)24 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 ≥1:8 Pre-vaccination (N = 32, 99)12 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup A ≥ 1:4 Pre-vaccination (N = 32, 99)23 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 ≥1:4 Post-accination (N = 31, 99)25 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup C ≥ 1:8 Post-vaccination (N = 32, 99)18 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 ≥1:8 Post-vaccination (N = 31, 99)14 Participants
Menomune® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup A ≥ 1:4 Post-vaccination (N = 31, 99)28 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 ≥1:8 Post-vaccination (N = 31, 99)92 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup C ≥1:4 Pre-vaccination (N = 32, 99)55 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup A ≥ 1:4 Pre-vaccination (N = 32, 99)79 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup A ≥ 1:8 Pre-vaccination (N = 32, 99)57 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup A ≥ 1:4 Post-vaccination (N = 31, 99)97 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup C ≥ 1:8 Pre-vaccination (N = 32, 99)41 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup C ≥1:4 Post-vaccination (N = 32, 99)95 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup C ≥ 1:8 Post-vaccination (N = 32, 99)90 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y ≥ 1:4 Pre-vaccination (N = 32, 99)43 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y ≥ 1:8 Pre-vaccination (N = 32, 99)34 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y ≥1:4 Post-vaccination (N = 31, 99)89 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup Y≥1:8 Post -vaccination (N = 31, 99)87 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 ≥1:4 Pre-vaccination (N = 32, 99)59 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 ≥1:8 Pre-vaccination (N = 32, 99)44 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup W-135 ≥1:4 Post-accination (N = 31, 99)95 Participants
Menactra® Vaccine GroupSummary of Participants Antibody Titers for Each of the Vaccine Serogroups Before and 28 Days After Vaccination With Either Menomune or Menactra Vaccine.Serogroup A ≥ 1:8 Post-vaccination (N = 31, 99)92 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026