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A Study to Investigate the Safety and Immunogenicity of Different Formulations of GSK Biologicals' Meningococcal ACWY Conjugate Vaccine (GSK3536820A and Menveo) Administered to Healthy Adults 18 to 40 Years of Age

Immunogenicity, Reactogenicity and Safety of Two Formulations of GSK Biologicals' Meningococcal ACWY Conjugate Vaccine (GSK3536820A and Menveo) in Healthy Adults 18 to 40 Years of Age

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03652610
Enrollment
996
Registered
2018-08-29
Start date
2018-09-07
Completion date
2019-06-11
Last updated
2021-02-09

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

Conditions

Infections, Meningococcal

Keywords

Meningitis, Liquid formulation, Meningococcal disease

Brief summary

MenACWY (Menveo) is a GSK vaccine intended for protection against disease caused by meningococcal bacteria groups A, C, W and Y in infants, children and adults, licensed in more than 60 countries. The purpose of this study is to compare the immunogenicity of the currently licensed MenACWY vaccine with the investigational MenACWY liquid vaccine.

Interventions

BIOLOGICALMenACWY liquid vaccine with approximately 30% MenA FS (GSK3536820A)

Single dose administered at Day 1, by intramuscular injection in the deltoid of the non-dominant arm

BIOLOGICALLicensed GSK MenACWY vaccine (Menveo)

Single dose administered at Day 1, by intramuscular injection in the deltoid of the non-dominant arm

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Data will be collected in an observer-blind manner. By observer-blind, it is meant that during the course of the study, the vaccine recipient and those responsible for the evaluation of any study endpoint (e.g. safety, reactogenicity and immunogenicity) will all be unaware of which vaccine was administered. To do so, vaccine preparation and administration will be done by authorized medical personnel who will not participate in any of the study clinical evaluations.

Eligibility

Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

1. Subjects who, in the opinion of the investigator, can and will comply with the requirements of the protocol or subjects' parent(s)/Legally Acceptable Respresentative(s) \[LAR(s)\] who, in the opinion of the investigator, can and will comply, with the requirements of the protocol. 2. Written informed consent obtained from the subject/from the parents(s)/LAR(s) of the subject prior to performance of any study specific procedure. 3. Written informed assent obtained for subjects below legal age of consent, if required by local regulations, at the time of enrolment. 4. A male or female between, and including, ≥18 to ≤40 YoA at the time of the first vaccination. 5. Healthy subjects as established by medical history and clinical examination before entering into the study. 6. Female subjects of non-childbearing potential may be enrolled in the study. * Non-childbearing potential is defined as pre-menarche, current bilateral tubal ligation or occlusion, hysterectomy, bilateral ovariectomy or post-menopause. 7. Female subjects of childbearing potential may be enrolled in the study, if the subject: * has practiced adequate contraception for 30 days prior to vaccination, and * has a negative pregnancy test on the day of vaccination, and * has agreed to continue adequate contraception during the entire treatment period. (approximately 1 month after vaccination).

Exclusion criteria

1. Anaphylaxis following the administration of vaccine 2. Any (clinical) condition that in the judgment of the investigator would make intramuscular injection unsafe and/or represents a contraindication to intramuscular vaccination and blood draws. 3. Any confirmed or suspected immunosuppressive or immunodeficient condition, including HIV infection. 4. Progressive, unstable or uncontrolled clinical conditions. 5. Hypersensitivity, including allergy, to any component of vaccines, medicinal products or medical equipment whose use is foreseen in this study. 6. Hypersensitivity to the active substances or to any of the excipients of the vaccine, including diphtheria toxoid (CRM197), or a life-threatening reaction after previous administration of a vaccine containing similar components. 7. Abnormal function of the immune system resulting from: * Clinical conditions. * Systemic administration of corticosteroids (Per os \[PO\]/ Intravenous \[IV\]/ Intramuscular \[IM\]) for more than 14 consecutive days within 90 days prior to informed consent, and until the Day 29 blood draw. * Administration of antineoplastic and immuno-modulating agents or radiotherapy within 90 days prior to informed consent, and until the Day 29 blood draw. 8. Received immunoglobulins or any blood products within 180 days prior to informed consent. 9. Received an investigational or non-registered medicinal product within 30 days prior to informed consent. 10. Any other clinical condition that, in the opinion of the investigator, might interfere with the results of the study or pose additional risk to the subject due to participation in the study. 11. History of any meningococcal vaccination. 12. Individuals who received any other vaccines within 7 days (for inactivated vaccines) or 14 days (for live vaccines) prior to enrolment in this study or who are planning to receive any vaccine within 28 days from the study vaccines\*. \* In case an emergency mass vaccination for an unforeseen public health threat (e.g.: a pandemic) is organised by the public health authorities, outside the routine immunization program, the time period described above can be reduced if necessary for that vaccine provided it is licensed and used according to its Summary of Product Characteristics (SmPC) or Prescribing Information and according to the local governmental recommendations and provided a written approval of the Sponsor is obtained. 13. Administration of long-acting immune-modifying drugs at any time during the study period (e.g. infliximab). 14. Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational vaccine/product. (pharmaceutical product or device). 15. Current or previous, confirmed or suspected disease caused by N. meningitidis. 16. Household contact with and/or intimate exposure to an individual with any laboratory confirmed N. meningitidis infection within 60 days prior to study vaccination. 17. Acute disease and/or fever within 3 days prior to study vaccination. Note: enrolment may be postponed/delayed until such transient circumstances have ended. * Fever is defined as body temperature ≥ 38.0°C / 100.4°F. The preferred location for measuring temperature in this study will be the oral cavity. * Subjects with a minor illness (such as mild diarrhoea, mild upper respiratory infection) without fever may be enrolled at the discretion of the investigator. 18. Received systemic antibiotic treatment within 3 days prior to study vaccination or blood draw. 19. Study personnel as an immediate family or household member. 20. Pregnant or lactating women.

Design outcomes

Primary

MeasureTime frameDescription
Adjusted Human Serum Bactericidal Activity (hSBA) Geometric Mean Titers (GMTs) Against N. Meningitidis Serogroup A for Each Vaccine Group, and Between-group RatiosAt Day 29hSBA titers against N.meningitidis serogroup A were calculated in terms of GMTs adjusted for pre-vaccination titer.

Secondary

MeasureTime frameDescription
Within-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and YAt Day 29Within-group ratios of hSBA GMTs against each of the N.meningitidis serogroups A, C, W and Y at Day 29 compared to Day 1.
Percentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group DifferencesAt Day 29The percentages of subjects with a ≥ 4-fold rise in post-vaccination hSBA (at Day 29 compared to Day 1) and associated 2-sided 95% Clopper-Pearson CIs were computed by group and for each N. meningitidis serogroups A, C, W and Y. A 4-fold rise in the hSBA titers is defined as: for individuals, whose pre-vaccination titers are \< the LOD (limit of detection), the post-vaccination titers must be ≥ 4-fold the LOD or ≥ the LLOQ (lower of limit of quantitation) whichever is greater; for individuals, whose pre-vaccination titers are ≥ the LOD and ≤ the LLOQ, the post-vaccination titers must be at least four times the LLOQ; for individuals whose pre-vaccination titers are \> the LLOQ, the post-vaccination titers must be at least four times the pre-vaccination
Percentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesAt Day 1 and Day 29For each vaccine group the percentage of subjects with hSBA titer ≥8, and its associated two-sided 95% Clopper-Pearson CIs were computed for each of the N. meningitidis serogroups A, C, W and Y.
Percentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesAt Day 1 and Day 29For each vaccine group the percentage of subjects with hSBA titer ≥LLOQ, and its associated two-sided 95% Clopper-Pearson CIs were computed for each of the N. meningitidis serogroups A, C, W and Y.
hSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosAt Day 1 and Day 29hSBA titers were calculated in terms of GMTs, at Day 1 and Day 29, against each of the N. meningitidis serogroups A, C, W and Y.
Number of Subjects Reported With Other Indicators of ReactogenicityFrom Day 1 to Day 7 after vaccinationNumber of subjects reporting other indicators of reactogenicity such as use of analgesics/antipyretics within 7 days after vaccination
Number of Subjects Reported With Any Unsolicited AEs Within 29 Days After VaccinationFrom Day 1 to Day 29 after vaccinationAn AE is defined as any untoward medical occurrence in a subject or clinical investigation subject administered with a pharmaceutical product at any dose that does not necessarily have to have a causal relationship with this treatment.
Number of Subjects Reported With AEs Leading to Withdrawal, Medically Attended AEs and Serious Adverse Events (SAEs)From Day 1 to Day 181 (during the entire study period)Medically attended AEs are defined as events for which the subject received medical attention defined as hospitalization, an emergency room visit, or a visit to or from medical personnel (medical doctor) for any reason. Any medically attended AE(s) is occurrence of any medically attended AE(s) regardless of intensity grade or relation to vaccination. Serious adverse event is any congenital anomaly/birth defect in the offspring of a study subject or any untoward medical occurrence that results in death or life threatening or requires hospitalization or results in disability or incapacity
Number of Subjects Reported With Any Unsolicited Adverse Events (AEs) Within 30 Minutes After VaccinationWithin 30 minutes after vaccination at Day 1An AE is defined as any untoward medical occurrence in a subject or clinical investigation subject administered with a pharmaceutical product at any dose that does not necessarily have to have a causal relationship with this treatment.
Number of Subjects Reported With Solicited Local and Systemic AEsFrom Day 1 (6 hours) to Day 7 after vaccinationNumber of subjects with solicited local and systemic AEs during the 7-days period (including the day of vaccination) after the vaccination.

Countries

Australia, Belgium, Canada, Germany, Italy

Participant flow

Recruitment details

Subjects were enrolled from 8 centers in Australia, 2 in Belgium, 10 in Canada, 6 in Germany and 4 in Italy.Planned age range in this study was 18-40 years.But 1 subject aged 44 years not meeting inclusion criteria was enrolled & vaccinated in GSK3536820A ACWY\_Liq Group & therefore was considered for all analyses except per protocol set for immunogenicity analyses

Pre-assignment details

Among 996 enrolled subjects, 16 subjects didn't receive any treatment and ICF documentation was not retrievable for 1 subject.

Participants by arm

ArmCount
GSK3536820A ACWY_Liq Group
Healthy adults, 18 to 44 years of age, receiving at Day 1 a single dose of investigational MenACWY liquid vaccine (GSK3536820A) formulation with approximately 30% Men A FS.
490
ACWY Group
Healthy adults, 18 to 40 years of age, receiving at Day 1 a single dose of licensed GSK's MenACWY vaccine formulation (Menveo).
489
Total979

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up10
Overall StudyWithdrawal by Subject35

Baseline characteristics

CharacteristicACWY GroupTotalGSK3536820A ACWY_Liq Group
Age, Continuous31.9 Years
STANDARD_DEVIATION 5.8
31.8 Years
STANDARD_DEVIATION 5.8
31.7 Years
STANDARD_DEVIATION 5.8
Race/Ethnicity, Customized
American Indian Or Alaska Native
0 Participants4 Participants4 Participants
Race/Ethnicity, Customized
Asian
27 Participants67 Participants40 Participants
Race/Ethnicity, Customized
Black Or African American
8 Participants12 Participants4 Participants
Race/Ethnicity, Customized
Native Hawaiian Or Other Pacific Islander
2 Participants4 Participants2 Participants
Race/Ethnicity, Customized
Other
13 Participants26 Participants13 Participants
Race/Ethnicity, Customized
White
439 Participants866 Participants427 Participants
Sex: Female, Male
Female
305 Participants614 Participants309 Participants
Sex: Female, Male
Male
184 Participants365 Participants181 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 4900 / 489
other
Total, other adverse events
336 / 490335 / 489
serious
Total, serious adverse events
6 / 4909 / 489

Outcome results

Primary

Adjusted Human Serum Bactericidal Activity (hSBA) Geometric Mean Titers (GMTs) Against N. Meningitidis Serogroup A for Each Vaccine Group, and Between-group Ratios

hSBA titers against N.meningitidis serogroup A were calculated in terms of GMTs adjusted for pre-vaccination titer.

Time frame: At Day 29

Population: Analysis was performed on the per protocol set for immunogenicity that includes subjects who received the vaccine, did not have any protocol deviation leading to exclusion, who were not excluded due to other reasons defined prior to unblinding or analysis and had available immuno data for any serogroup and time point considered.

ArmMeasureValue (GEOMETRIC_MEAN)
GSK3536820A ACWY_Liq GroupAdjusted Human Serum Bactericidal Activity (hSBA) Geometric Mean Titers (GMTs) Against N. Meningitidis Serogroup A for Each Vaccine Group, and Between-group Ratios185.16 Titers
ACWY GroupAdjusted Human Serum Bactericidal Activity (hSBA) Geometric Mean Titers (GMTs) Against N. Meningitidis Serogroup A for Each Vaccine Group, and Between-group Ratios211.33 Titers
Comparison: To demonstrate non-inferiority of the investigational MenACWY liquid vaccine with approximately 30% Men A FS (GSK3536820A ACWY\_Liq Group) to that of currently licensed MenACWY vaccine (ACWY Group), as measured by the adjusted human serum bactericidal assay (hSBA) Geometric Mean Titers (GMTs) directed against N. meningitidis serogroup A at Day 29 after a single dose vaccination95% CI: [0.64, 1.2]ANCOVA
Secondary

hSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group Ratios

hSBA titers were calculated in terms of GMTs, at Day 1 and Day 29, against each of the N. meningitidis serogroups A, C, W and Y.

Time frame: At Day 1 and Day 29

Population: Analysis was performed on the per protocol set for immunogenicity that includes subjects who received the vaccine, did not have any protocol deviation leading to exclusion, who were not excluded due to other reasons defined prior to unblinding or analysis and had available immuno data for any serogroup and time point considered.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
GSK3536820A ACWY_Liq GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis A, Day 12.79 Titers
GSK3536820A ACWY_Liq GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis A, Day 29182.96 Titers
GSK3536820A ACWY_Liq GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis C, Day 111.41 Titers
GSK3536820A ACWY_Liq GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis C, Day 29153.95 Titers
GSK3536820A ACWY_Liq GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis W, Day 19.6 Titers
GSK3536820A ACWY_Liq GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis W, Day 2959.74 Titers
GSK3536820A ACWY_Liq GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis Y, Day 14.14 Titers
GSK3536820A ACWY_Liq GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis Y, Day 2960.29 Titers
ACWY GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis Y, Day 2954.99 Titers
ACWY GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis A, Day 12.97 Titers
ACWY GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis W, Day 110.92 Titers
ACWY GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis A, Day 29213.42 Titers
ACWY GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis Y, Day 14.75 Titers
ACWY GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis C, Day 112.05 Titers
ACWY GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis W, Day 2954.12 Titers
ACWY GrouphSBA GMTs Against Each of the N.Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group RatiosMeningitis C, Day 29139.63 Titers
Comparison: To compare the immunogenicity of the investigational MenACWY liquid vaccine with approximately 30% Men A FS (GSK3536820A ACWY\_Liq Group) and the currently licensed MenACWY vaccine (ACWY Group), as measured by the adjusted hSBA GMTs directed against N. meningitidis serogroup C at Day 2995% CI: [0.84, 1.68]ANCOVA
Comparison: To compare the immunogenicity of the investigational MenACWY liquid vaccine with approximately 30% Men A FS (GSK3536820A ACWY\_Liq Group) and the currently licensed MenACWY vaccine (ACWY Group), as measured by the adjusted hSBA GMTs directed against N. meningitidis serogroup W at Day 2995% CI: [0.96, 1.58]ANCOVA
Comparison: To compare the immunogenicity of the investigational MenACWY liquid vaccine with approximately 30% Men A FS (GSK3536820A ACWY\_Liq Group) and the currently licensed MenACWY vaccine (ACWY Group), as measured by the adjusted hSBA GMTs directed against N. meningitidis serogroup Y at Day 2995% CI: [0.9, 1.58]ANCOVA
Secondary

Number of Subjects Reported With AEs Leading to Withdrawal, Medically Attended AEs and Serious Adverse Events (SAEs)

Medically attended AEs are defined as events for which the subject received medical attention defined as hospitalization, an emergency room visit, or a visit to or from medical personnel (medical doctor) for any reason. Any medically attended AE(s) is occurrence of any medically attended AE(s) regardless of intensity grade or relation to vaccination. Serious adverse event is any congenital anomaly/birth defect in the offspring of a study subject or any untoward medical occurrence that results in death or life threatening or requires hospitalization or results in disability or incapacity

Time frame: From Day 1 to Day 181 (during the entire study period)

Population: Analysis was performed on the unsolicited safety set that includes all enrolled subjects who received a study vaccination and reported any adverse events data in the defined period.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With AEs Leading to Withdrawal, Medically Attended AEs and Serious Adverse Events (SAEs)Aes leading to withdrawal0 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With AEs Leading to Withdrawal, Medically Attended AEs and Serious Adverse Events (SAEs)MAEs79 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With AEs Leading to Withdrawal, Medically Attended AEs and Serious Adverse Events (SAEs)SAEs6 Participants
ACWY GroupNumber of Subjects Reported With AEs Leading to Withdrawal, Medically Attended AEs and Serious Adverse Events (SAEs)Aes leading to withdrawal0 Participants
ACWY GroupNumber of Subjects Reported With AEs Leading to Withdrawal, Medically Attended AEs and Serious Adverse Events (SAEs)MAEs84 Participants
ACWY GroupNumber of Subjects Reported With AEs Leading to Withdrawal, Medically Attended AEs and Serious Adverse Events (SAEs)SAEs9 Participants
Secondary

Number of Subjects Reported With Any Unsolicited Adverse Events (AEs) Within 30 Minutes After Vaccination

An AE is defined as any untoward medical occurrence in a subject or clinical investigation subject administered with a pharmaceutical product at any dose that does not necessarily have to have a causal relationship with this treatment.

Time frame: Within 30 minutes after vaccination at Day 1

Population: Analysis was performed on the unsolicited safety set that includes all enrolled subjects who received a study vaccination and reported unsolicited adverse events data for the defined period.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Any Unsolicited Adverse Events (AEs) Within 30 Minutes After Vaccination5 Participants
ACWY GroupNumber of Subjects Reported With Any Unsolicited Adverse Events (AEs) Within 30 Minutes After Vaccination5 Participants
Secondary

Number of Subjects Reported With Any Unsolicited AEs Within 29 Days After Vaccination

An AE is defined as any untoward medical occurrence in a subject or clinical investigation subject administered with a pharmaceutical product at any dose that does not necessarily have to have a causal relationship with this treatment.

Time frame: From Day 1 to Day 29 after vaccination

Population: Analysis was performed on the unsolicited safety set that includes all enrolled subjects who received a study vaccination and reported unsolicited adverse events data for the defined period.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Any Unsolicited AEs Within 29 Days After Vaccination117 Participants
ACWY GroupNumber of Subjects Reported With Any Unsolicited AEs Within 29 Days After Vaccination111 Participants
Secondary

Number of Subjects Reported With Other Indicators of Reactogenicity

Number of subjects reporting other indicators of reactogenicity such as use of analgesics/antipyretics within 7 days after vaccination

Time frame: From Day 1 to Day 7 after vaccination

Population: Analysis was performed on the solicited safety set that includes all enrolled subjects who received a study vaccination and reported any indicators of reactogenicity data for the defined period.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Other Indicators of ReactogenicityAnalgesic/Antipyretic Prevention, Yes36 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Other Indicators of ReactogenicityAnalgesic/Antipyretic Prevention, No453 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Other Indicators of ReactogenicityAnalgesic/Antipyretic Treatment, Yes80 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Other Indicators of ReactogenicityAnalgesic/Antipyretic Treatment, No409 Participants
ACWY GroupNumber of Subjects Reported With Other Indicators of ReactogenicityAnalgesic/Antipyretic Treatment, No408 Participants
ACWY GroupNumber of Subjects Reported With Other Indicators of ReactogenicityAnalgesic/Antipyretic Prevention, Yes40 Participants
ACWY GroupNumber of Subjects Reported With Other Indicators of ReactogenicityAnalgesic/Antipyretic Treatment, Yes79 Participants
ACWY GroupNumber of Subjects Reported With Other Indicators of ReactogenicityAnalgesic/Antipyretic Prevention, No447 Participants
Secondary

Number of Subjects Reported With Solicited Local and Systemic AEs

Number of subjects with solicited local and systemic AEs during the 7-days period (including the day of vaccination) after the vaccination.

Time frame: From Day 1 (6 hours) to Day 7 after vaccination

Population: Analysis was performed on the solicited safety set that includes all enrolled subjects who received a study vaccination and reported any solicited adverse events data for the defined period.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsFatigue159 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsInduration25 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsFever (Temperature >= 38 C)7 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsArthralgia43 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsHeadache158 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsErythema28 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsLoss of Appetite31 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsChills42 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsMyalgia58 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsNausea49 Participants
GSK3536820A ACWY_Liq GroupNumber of Subjects Reported With Solicited Local and Systemic AEsPain200 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsNausea50 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsErythema28 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsInduration24 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsPain182 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsArthralgia46 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsChills40 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsFatigue159 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsFever (Temperature >= 38 C)10 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsHeadache165 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsLoss of Appetite40 Participants
ACWY GroupNumber of Subjects Reported With Solicited Local and Systemic AEsMyalgia58 Participants
Secondary

Percentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group Differences

The percentages of subjects with a ≥ 4-fold rise in post-vaccination hSBA (at Day 29 compared to Day 1) and associated 2-sided 95% Clopper-Pearson CIs were computed by group and for each N. meningitidis serogroups A, C, W and Y. A 4-fold rise in the hSBA titers is defined as: for individuals, whose pre-vaccination titers are \< the LOD (limit of detection), the post-vaccination titers must be ≥ 4-fold the LOD or ≥ the LLOQ (lower of limit of quantitation) whichever is greater; for individuals, whose pre-vaccination titers are ≥ the LOD and ≤ the LLOQ, the post-vaccination titers must be at least four times the LLOQ; for individuals whose pre-vaccination titers are \> the LLOQ, the post-vaccination titers must be at least four times the pre-vaccination

Time frame: At Day 29

Population: Analysis was performed on the per protocol set for immunogenicity that includes subjects who received the vaccine, did not have any protocol deviation leading to exclusion, who were not excluded due to other reasons defined prior to unblinding or analysis and had available immuno data for any serogroup and time point considered.

ArmMeasureGroupValue (NUMBER)
GSK3536820A ACWY_Liq GroupPercentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A79.8 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C56.3 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W44.7 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y63.3 Percentages of subjects
ACWY GroupPercentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y58 Percentages of subjects
ACWY GroupPercentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A83.7 Percentages of subjects
ACWY GroupPercentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W40.2 Percentages of subjects
ACWY GroupPercentages of Subjects With a ≥4 Fold Rise in hSBA Antibody Titers for Each of the N.Meningitidis Serogroups A, C,W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C54.4 Percentages of subjects
Comparison: Between-group difference in percentage of subjects with a ≥ 4-fold rise in post-vaccination hSBA for N. meningitidis serogroup A at Day 29.95% CI: [-9.3, 1.52]Miettinen and Nurminen score method
Comparison: Between-group difference in percentage of subjects with a ≥ 4-fold rise in post-vaccination hSBA for N. meningitidis serogroup C at Day 29.95% CI: [-4.7, 8.43]Miettinen and Nurminen score method
Comparison: Between-group difference in percentage of subjects with a ≥ 4-fold rise in post-vaccination hSBA for N. meningitidis serogroup W at Day 29.95% CI: [-1.97, 11.01]Miettinen and Nurminen score method
Comparison: Between-group difference in percentage of subjects with a ≥ 4-fold rise in post-vaccination hSBA for N. meningitidis serogroup Y at Day 29.95% CI: [-1.11, 11.57]Miettinen and Nurminen score method
Secondary

Percentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group Differences

For each vaccine group the percentage of subjects with hSBA titer ≥8, and its associated two-sided 95% Clopper-Pearson CIs were computed for each of the N. meningitidis serogroups A, C, W and Y.

Time frame: At Day 1 and Day 29

Population: Analysis was performed on the per protocol set for immunogenicity that includes subjects who received the vaccine, did not have any protocol deviation leading to exclusion, who were not excluded due to other reasons defined prior to unblinding or analysis and had available immuno data for any serogroup and time point considered.

ArmMeasureGroupValue (NUMBER)
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A, Day 18.7 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A, Day 2982.8 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C, Day 153.8 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C, Day 2974.5 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W, Day 139.8 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W, Day 2973.3 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y, Day 122.7 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y, Day 2977.2 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y, Day 2976 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A, Day 111.2 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W, Day 145.7 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A, Day 2986.4 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y, Day 125.5 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C, Day 154.4 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W, Day 2973.1 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥8 Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C, Day 2974.9 Percentages of subjects
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥8 for the N. meningitidis serogroup A at Day 195% CI: [-6.47, 1.49]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥8 for the N. meningitidis serogroup C at Day 195% CI: [-6.99, 5.83]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥8 for the N. meningitidis serogroup W at Day 195% CI: [-12.33, 0.47]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥8 for the N. meningitidis serogroup Y at Day 195% CI: [-8.3, 2.76]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥8 for the N. meningitidis serogroup A at Day 2995% CI: [-8.65, 1.21]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥8 for the N. meningitidis serogroup C at Day 2995% CI: [-6.12, 5.33]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥8 for the N. meningitidis serogroup W at Day 2995% CI: [-5.49, 6.02]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥8 for the N. meningitidis serogroup Y at Day 2995% CI: [-4.33, 6.62]Miettinen and Nurminen score method
Secondary

Percentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group Differences

For each vaccine group the percentage of subjects with hSBA titer ≥LLOQ, and its associated two-sided 95% Clopper-Pearson CIs were computed for each of the N. meningitidis serogroups A, C, W and Y.

Time frame: At Day 1 and Day 29

Population: Analysis was performed on the per protocol set for immunogenicity that includes subjects who received the vaccine, did not have any protocol deviation leading to exclusion, who were not excluded due to other reasons defined prior to unblinding or analysis and had available immuno data for any serogroup and time point considered.

ArmMeasureGroupValue (NUMBER)
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A, Day 110.5 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A, Day 2982.8 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C, Day 161.2 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C, Day 2976.5 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W, Day 141.3 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W, Day 2973.3 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y, Day 123.8 Percentages of subjects
GSK3536820A ACWY_Liq GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y, Day 2977.8 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y, Day 2977.3 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A, Day 113.5 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W, Day 147.3 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis A, Day 2986.7 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis Y, Day 126.3 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C, Day 162.3 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis W, Day 2973.5 Percentages of subjects
ACWY GroupPercentages of Subjects With hSBA Titers ≥LLOQ Against Each of the N. Meningitidis Serogroups A, C, W and Y for Each Vaccine Group, and Between-group DifferencesMeningitis C, Day 2976.5 Percentages of subjects
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥LLOQ for the N. meningitidis serogroup A at Day 2995% CI: [-8.87, 0.96]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥LLOQ for the N. meningitidis serogroup A at Day 195% CI: [-7.24, 1.37]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥LLOQ for the N. meningitidis serogroup C at Day 195% CI: [-7.34, 5.16]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥LLOQ for the N. meningitidis serogroup W at Day 195% CI: [-12.35, 0.5]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥LLOQ for the N. meningitidis serogroup Y at Day 195% CI: [-8.15, 3.06]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥LLOQ for the N. meningitidis serogroup C at Day 2995% CI: [-5.52, 5.65]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥LLOQ for the N. meningitidis serogroup W at Day 2995% CI: [-5.92, 5.57]Miettinen and Nurminen score method
Comparison: Between-group difference in percentages of subjects with hSBA titer ≥LLOQ for the N. meningitidis serogroup Y at Day 2995% CI: [-4.89, 5.9]Miettinen and Nurminen score method
Secondary

Within-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and Y

Within-group ratios of hSBA GMTs against each of the N.meningitidis serogroups A, C, W and Y at Day 29 compared to Day 1.

Time frame: At Day 29

Population: Analysis was performed on the per protocol set for immunogenicity that includes subjects who received the vaccine, did not have any protocol deviation leading to exclusion, who were not excluded due to other reasons defined prior to unblinding or analysis and had available immuno data for any serogroup and time point considered.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
GSK3536820A ACWY_Liq GroupWithin-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and YMeningitis A65.24 Ratio
GSK3536820A ACWY_Liq GroupWithin-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and YMeningitis C13.17 Ratio
GSK3536820A ACWY_Liq GroupWithin-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and YMeningitis W6.1 Ratio
GSK3536820A ACWY_Liq GroupWithin-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and YMeningitis Y14.64 Ratio
ACWY GroupWithin-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and YMeningitis Y11.48 Ratio
ACWY GroupWithin-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and YMeningitis A73.01 Ratio
ACWY GroupWithin-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and YMeningitis W4.8 Ratio
ACWY GroupWithin-group Geometric Mean Ratios (GMRs) Against Each of the N.Meningitidis Serogroups A, C, W and YMeningitis C11.07 Ratio

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026