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Safety, Tolerability, and Immunogenicity Study of a 24-Valent Pneumococcal Conjugate Vaccine (VAX-24) in Older Adults

A Phase 2, Randomized, Observer-Blind, Dose-Finding, Controlled Clinical Study to Evaluate the Safety, Tolerability, and Immunogenicity of a 24-Valent Pneumococcal Conjugate Vaccine (VAX-24) in Healthy Adults 65 Years and Older

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05297578
Enrollment
207
Registered
2022-03-28
Start date
2022-06-15
Completion date
2023-02-15
Last updated
2024-10-09

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

Conditions

Pneumococcal Vaccines

Brief summary

The objective of the study is to evaluate the safety and tolerability of a single injection of VAX-24 at 3 dose levels compared to Prevnar 20™ (PCV20) in adults 65 years of age and older.

Detailed description

The objective of the study is to evaluate the safety and tolerability of a single injection of VAX-24 at 3 dose levels (Low: 1.1 mcg; Mid: 2.2 mcg; or Mixed: 2.2/4.4 mcg) compared to Prevnar 20™ (PCV20) in adults 65 years of age and older.

Interventions

BIOLOGICAL24-Valent Pneumococcal Conjugate Vaccine

0.5 ml dose of VAX-24 will be administered into the deltoid muscle at Day 1

0.5 ml dose of Prevnar 20 will be administered into the deltoid muscle at Day 1

Sponsors

Vaxcyte, Inc.
Lead SponsorINDUSTRY

Study design

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

Masking description

Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) Triple (Participant, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Male or female age 65 or older. * Able and willing to complete the informed consent process. * Available for clinical follow-up through the last study visit at 6 months after the study vaccination. * In good general health as determined by medical history, vital signs, physical examination, and clinical judgment of the investigator. Preexisting medical conditions must be stable as defined by no change in treatment at least 6 weeks prior to study participation. * Willing to have blood samples collected, stored indefinitely, and used for research purposes. * Able to provide proof of identity to the satisfaction of the study staff completing the enrollment process.

Exclusion criteria

* Previous pneumococcal disease (either confirmed or by self-reporting). * Previous receipt of a licensed or investigational pneumococcal vaccine. * Receipt of any investigational study product within 30 days prior to enrollment into the study, currently participating in another interventional investigational study, or having plans to receive another investigational product(s) while on study. * Planned or actual administration of any licensed vaccine during the period starting 30 days before enrollment into the study through Day 29. * Physical examination indicating any clinically significant medical condition. * Body Temperature \> 38.0°C (\> 100.4°F) or acute illness within 3 days prior to study vaccination (subject may be rescheduled). * Previous or existing diagnosis of HIV, Hepatitis B or Hepatitis C. * History of severe allergic reaction with generalized urticaria, angioedema, or anaphylaxis. * Bleeding disorder diagnosed by a doctor (eg, factor deficiency, coagulopathy, or platelet disorder requiring special precautions) or significant bruising or bleeding difficulties with intramuscular injections or blood draws. * Any other chronic or clinically significant medical condition that, in the opinion of the investigator, would jeopardize the safety or rights of the subject or confound evaluation of the study vaccine. * Any medical, psychiatric, or social condition that, in the judgment of the investigator, is a contraindication to protocol participation or impairs a subject's ability to give informed consent. * Received blood or blood product (including Immune Globulin IV) within 90 days prior to enrollment into the study. * Received systemic corticosteroids for ≥ 14 consecutive days and has not completed treatment ≤30 days prior to enrollment into the study. * Receiving immunosuppressive therapy. * History of malignancy ≤5 years before enrollment, except for adequately treated basal cell or squamous cell skin cancer or in situ cervical cancer.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Subjects Reporting Unsolicited Adverse Events Within 1 Month After Vaccination1 month after vaccinationPercentage of participants with at least one Treatment Emergent Adverse Event (unsolicited AEs and SAEs)
Percentage of Participants Reporting Solicited Systemic Events Within 7 Days After Vaccination7 days after vaccinationSolicited systemic reactions include fever, headache, fatigue, muscle pain, and joint pain within 7 days of vaccination
Percentage of Participants Reporting Solicited Local Reactions Within 7 Days After Vaccination7 days after vaccinationSolicited local reactions included redness/erythema, swelling/induration, and pain at injection site
Percentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)6 months after vaccinationPercentage of participants with serious adverse events (SAEs) and new onset of chronic illness (NOCIs)

Secondary

MeasureTime frameDescription
VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)1 month after vaccinationThe change from baseline to 1 month post-vaccination in the immune response directed against each of the 24 serotypes was evaluated by measuring serotype-specific functional antibody responses with an opsonophagocytic (OPA) assay that assesses the functional capacity of pneumococcal antibodies.
24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)1 month after vaccinationThe change from baseline to 1 month post-vaccination in the immune response directed against each of the 24 serotypes was evaluated by measuring IgG levels using an IgG multiplexed electrochemoluminescent assay (ECLA). Values below the lower limit of quantitation (LLOQ) were analyzed as 0.5\*LLOQ. Values above the upper limit of quantitation (ULOQ) were analyzed as 1\*ULOQ.

Countries

United States

Participant flow

Pre-assignment details

230 participants were screened; 21 did not meet eligibility criteria and 2 were excluded for other reasons. 1 participant was randomized to VAX-24 2.2 mcg but was administered and included in the analysis for VAX-24 2.2/4.4 mcg dose. 1 participant in the PCV20 group was lost to follow up at day 1 without any solicited or unsolicited AEs collected. A 66-year-old male did not finish due to sudden cardiac death not considered related to vaccine due to risk factors of hypertension and BMI=47.4

Participants by arm

ArmCount
VAX-24 Low Dose
Participants will receive a single dose of VAX-24 1.1 mcg administered as an intramuscular injection on Day 1. 24-Valent Pneumococcal Conjugate Vaccine: 0.5 ml dose of VAX-24 will be administered into the deltoid muscle at Day 1
52
VAX-24 Mid Dose
Participants will receive a single dose of VAX-24 2.2 mcg administered as an intramuscular injection on Day 1. 24-Valent Pneumococcal Conjugate Vaccine: 0.5 ml dose of VAX-24 will be administered into the deltoid muscle at Day 1
52
VAX-24 Mixed Dose
Participants will receive a single dose of VAX-24 2.2 mcg/4.4 mcg administered as an intramuscular injection on Day 1. 24-Valent Pneumococcal Conjugate Vaccine: 0.5 ml dose of VAX-24 will be administered into the deltoid muscle at Day 1
52
PCV20Group 4
Participants will receive a single intramuscular injection of the standard dose of PCV20 on Day 1. Pneumococcal 20-valent Conjugate Vaccine: 0.5 ml dose of Prevnar 20 will be administered into the deltoid muscle at Day 1
51
Total207

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyDeath0100
Overall StudyLost to Follow-up1121
Overall StudyWithdrawal by Subject0010

Baseline characteristics

CharacteristicVAX-24 Low DoseTotalPCV20Group 4VAX-24 Mixed DoseVAX-24 Mid Dose
Age, Continuous67.5 Years67.0 Years67.0 Years67.0 Years66.5 Years
Body Mass Index (kg/m^2)27.42 kg/m^228.82 kg/m^228.99 kg/m^229.48 kg/m^228.98 kg/m^2
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants25 Participants8 Participants5 Participants7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
44 Participants174 Participants41 Participants46 Participants43 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants8 Participants2 Participants1 Participants2 Participants
Height (cm)165.5 cm166.6 cm166.4 cm167.6 cm166.6 cm
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
7 Participants45 Participants14 Participants14 Participants10 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants2 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
White
44 Participants158 Participants36 Participants37 Participants41 Participants
Sex: Female, Male
Female
38 Participants140 Participants31 Participants37 Participants34 Participants
Sex: Female, Male
Male
14 Participants67 Participants20 Participants15 Participants18 Participants
Weight (kg)75.05 kg80.30 kg81.00 kg86.11 kg80.36 kg

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 521 / 510 / 530 / 50
other
Total, other adverse events
26 / 5235 / 5123 / 5327 / 50
serious
Total, serious adverse events
1 / 521 / 511 / 530 / 50

Outcome results

Primary

Percentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)

Percentage of participants with serious adverse events (SAEs) and new onset of chronic illness (NOCIs)

Time frame: 6 months after vaccination

Population: Safety population, defined as all participants exposed to study vaccine

ArmMeasureGroupValue (NUMBER)
VAX-24 Low DosePercentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)Participants with at least 1 SAE1.9 Percentage of participants
VAX-24 Low DosePercentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)Participants with at least 1 NOCI1.9 Percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)Participants with at least 1 NOCI2.0 Percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)Participants with at least 1 SAE2.0 Percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)Participants with at least 1 SAE1.9 Percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)Participants with at least 1 NOCI1.9 Percentage of participants
PCV20Group 4Percentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)Participants with at least 1 SAE0.0 Percentage of participants
PCV20Group 4Percentage of Participants Reporting SAEs and New Onset of Chronic Illnesses (NOCIs)Participants with at least 1 NOCI0.0 Percentage of participants
Primary

Percentage of Participants Reporting Solicited Local Reactions Within 7 Days After Vaccination

Solicited local reactions included redness/erythema, swelling/induration, and pain at injection site

Time frame: 7 days after vaccination

Population: Safety population, defined as all participants exposed to study vaccine

ArmMeasureGroupValue (NUMBER)
VAX-24 Low DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationAny solicited local AE (any grade)42.3 percentage of participants
VAX-24 Low DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationPain (Local-any grade)38.5 percentage of participants
VAX-24 Low DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationErythema (redness) at the injection site (any grade)3.8 percentage of participants
VAX-24 Low DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationEdema (swelling) at the injection site (any grade)5.8 percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationPain (Local-any grade)62.7 percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationErythema (redness) at the injection site (any grade)3.9 percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationEdema (swelling) at the injection site (any grade)2.0 percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationAny solicited local AE (any grade)62.7 percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationErythema (redness) at the injection site (any grade)3.8 percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationPain (Local-any grade)37.7 percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationEdema (swelling) at the injection site (any grade)3.8 percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationAny solicited local AE (any grade)37.7 percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationEdema (swelling) at the injection site (any grade)6.0 percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationPain (Local-any grade)48.0 percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationAny solicited local AE (any grade)48.0 percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Local Reactions Within 7 Days After VaccinationErythema (redness) at the injection site (any grade)10.0 percentage of participants
Primary

Percentage of Participants Reporting Solicited Systemic Events Within 7 Days After Vaccination

Solicited systemic reactions include fever, headache, fatigue, muscle pain, and joint pain within 7 days of vaccination

Time frame: 7 days after vaccination

Population: Safety population, defined as all participants exposed to study vaccine

ArmMeasureGroupValue (NUMBER)
VAX-24 Low DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationAny solicited systemic AE (any grade)34.6 Percentage of participants
VAX-24 Low DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationFever (any grade)0 Percentage of participants
VAX-24 Low DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationFatigue (any grade)26.9 Percentage of participants
VAX-24 Low DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationHeadache (any grade)17.3 Percentage of participants
VAX-24 Low DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationMuscle Pain (any grade)19.2 Percentage of participants
VAX-24 Low DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationJoint pain (any grade)9.6 Percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationJoint pain (any grade)11.8 Percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationHeadache (any grade)11.8 Percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationFatigue (any grade)31.4 Percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationMuscle Pain (any grade)27.5 Percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationFever (any grade)0 Percentage of participants
VAX-24 Mid DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationAny solicited systemic AE (any grade)41.2 Percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationFever (any grade)0 Percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationFatigue (any grade)15.1 Percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationJoint pain (any grade)5.7 Percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationHeadache (any grade)11.3 Percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationMuscle Pain (any grade)17.0 Percentage of participants
VAX-24 Mixed DosePercentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationAny solicited systemic AE (any grade)28.3 Percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationMuscle Pain (any grade)32.0 Percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationFatigue (any grade)14.0 Percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationFever (any grade)0 Percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationAny solicited systemic AE (any grade)44.0 Percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationJoint pain (any grade)4.0 Percentage of participants
PCV20Group 4Percentage of Participants Reporting Solicited Systemic Events Within 7 Days After VaccinationHeadache (any grade)16.0 Percentage of participants
Primary

Percentage of Subjects Reporting Unsolicited Adverse Events Within 1 Month After Vaccination

Percentage of participants with at least one Treatment Emergent Adverse Event (unsolicited AEs and SAEs)

Time frame: 1 month after vaccination

Population: Safety population. defined as all participants exposed to study vaccine

ArmMeasureValue (NUMBER)
VAX-24 Low DosePercentage of Subjects Reporting Unsolicited Adverse Events Within 1 Month After Vaccination11.5 Percentage of participants
VAX-24 Mid DosePercentage of Subjects Reporting Unsolicited Adverse Events Within 1 Month After Vaccination7.8 Percentage of participants
VAX-24 Mixed DosePercentage of Subjects Reporting Unsolicited Adverse Events Within 1 Month After Vaccination5.7 Percentage of participants
PCV20Group 4Percentage of Subjects Reporting Unsolicited Adverse Events Within 1 Month After Vaccination16.0 Percentage of participants
Secondary

24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)

The change from baseline to 1 month post-vaccination in the immune response directed against each of the 24 serotypes was evaluated by measuring IgG levels using an IgG multiplexed electrochemoluminescent assay (ECLA). Values below the lower limit of quantitation (LLOQ) were analyzed as 0.5\*LLOQ. Values above the upper limit of quantitation (ULOQ) were analyzed as 1\*ULOQ.

Time frame: 1 month after vaccination

Population: Immunogenicity evaluable population including all participants as treated.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)6B3.17 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)213.42 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)14.85 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)30.56 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)42.51 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)52.39 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)6A5.26 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)7F4.88 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)87.21 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)9N7.93 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)9V4.91 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)10A7.77 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)11A5.33 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)12F1.86 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)147.93 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)15B12.16 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)17F10.81 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)18C8.17 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)19A10.58 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)19F8.21 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)20B18.18 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)22F3.26 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)23F5.16 mcg/mL
VAX-24 Low Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)33F11.96 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)33F14.34 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)11A5.46 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)19F9.61 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)17F10.82 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)22F6.53 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)12F2.77 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)42.50 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)15B17.82 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)88.08 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)1412.21 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)6A8.61 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)30.64 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)20B24.61 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)9N9.83 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)53.20 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)219.04 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)7F5.50 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)9V5.56 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)15.36 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)19A13.97 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)18C11.92 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)10A12.31 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)6B7.50 mcg/mL
VAX-24 Mid Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)23F9.10 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)9V7.63 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)6B5.92 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)7F7.67 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)85.53 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)9N8.32 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)20B19.51 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)10A9.48 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)11A5.73 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)12F2.07 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)22F4.14 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)1410.41 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)15B13.82 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)33F13.24 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)17F10.78 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)18C15.03 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)23F7.10 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)19A13.37 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)14.13 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)29.20 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)30.85 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)42.24 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)52.03 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)19F11.51 mcg/mL
VAX-24 Mixed Dose24 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)6A6.86 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)42.16 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)9V3.46 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)7F4.52 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)14.14 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)19F3.14 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)9N3.22 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)6B1.99 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)21.59 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)19A7.84 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)85.16 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)52.67 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)149.08 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)22F7.99 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)12F0.88 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)30.68 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)15B12.48 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)23F5.31 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)11A4.70 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)33F10.82 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)17F0.56 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)10A9.43 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)20B4.77 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)6A4.61 mcg/mL
PCV20Group 424 VAX-24 Pneumococcal Serotype-specific IgG Geometric Mean Concentration (GMCs)18C8.25 mcg/mL
Secondary

VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)

The change from baseline to 1 month post-vaccination in the immune response directed against each of the 24 serotypes was evaluated by measuring serotype-specific functional antibody responses with an opsonophagocytic (OPA) assay that assesses the functional capacity of pneumococcal antibodies.

Time frame: 1 month after vaccination

Population: Immunogenicity Evaluable Populations, defined as participants in the exposed population with no major protocol deviation that impacted immunogenicity assessment and provided evaluable serum sample results for baseline, the relevant post-vaccination time points, and within the required time frames.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)6B1889.61 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)21224.83 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)3252.56 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)41386.27 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)5340.10 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)6A1672.35 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)1288.67 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)7F2738.72 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)81789.95 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)9N7559.19 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)9V927.63 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)10A2544.55 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)11A879.43 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)12F1060.55 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)141972.20 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)15B1964.60 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)17F2010.33 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)18C1553.59 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)19A3608.79 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)19F1211.40 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)20B6871.60 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)22F3326.80 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)23F808.78 Titer
VAX-24 Low DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)33F8681.95 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)33F11868.64 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)11A1068.11 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)41375.38 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)23F823.11 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)22F6107.92 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)12F1153.52 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)81970.88 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)17F2035.09 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)6A3678.45 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)143253.68 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)3311.14 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)15B1504.58 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)20B7368.09 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)9N7451.59 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)19F1305.32 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)21865.97 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)7F2884.67 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)9V1601.84 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)6B2736.64 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)19A5805.66 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)1284.55 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)10A2921.81 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)5459.02 Titer
VAX-24 Mid DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)18C2237.89 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)9V1858.57 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)6B2827.09 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)7F3725.68 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)81450.17 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)9N7295.23 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)20B6621.65 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)19F1723.29 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)10A2484.44 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)11A1072.92 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)12F1233.96 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)22F4248.38 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)141607.64 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)15B1489.75 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)33F10621.27 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)17F1979.30 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)18C2894.88 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)23F1182.95 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)1135.10 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)21060.68 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)19A5124.99 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)3350.55 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)41472.75 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)5240.64 Titer
VAX-24 Mixed DoseVAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)6A2492.54 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)23F630.71 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)20B75.74 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)7F3189.78 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)1182.60 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)9V972.10 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)9N1673.49 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)6A1877.87 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)281.26 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)5390.30 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)81498.73 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)19F854.85 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)3342.86 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)22F8596.62 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)142491.35 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)19A3808.09 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)15B1759.25 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)33F9994.41 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)12F718.93 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)6B2132.92 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)17F267.63 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)11A814.61 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)10A2490.76 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)41031.62 Titer
PCV20Group 4VAX-24 Pneumococcal Serotype-specific Opsonophagocytic Assay (OPA) Geometric Mean Titer (GMTs)18C1327.56 Titer

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026