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V114

Phase 3

Acute Otitis Media (AOM) | Monoclonal antibody | ENT |Merck & Company, Inc.|Last Updated: Jan 22, 2026

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials1
Total Enrollment7,119

FDA Designations

No designations recorded

Clinical trial landscape

V114 · 19 trials · 5 indications

Phase 3 16Phase 2 1Phase 1 2
NCT04633226Safety and Immunogenicity of V114 in Healthy Infants in South Korea (V114-036)Pneumococcal Disease
COMPLETED58 Analytics
NCT04193215V114 and Acute Otitis Media (V114-032/PNEU-ERA)Acute Otitis Media (AOM)
COMPLETED7,119 Analytics
NCT04384107Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 in Healthy Japanese Infants (V114-033)Pneumococcal Infections
COMPLETED694 Analytics
NCT03921424Safety and Immunogenicity of V114 in Children Infected With Human Immunodeficiency Virus (HIV) (V114-030/PNEU-WAY PED)Pneumococcal Infections
COMPLETED407 Analytics
NCT04016714Safety, Tolerability, and Immunogenicity of a 3-dose Regimen of V114 in Healthy Infants (PNEU-PED-EU-2/V114-026)Pneumococcal Infections
COMPLETED1,191 Analytics
NCT03885934Safety and Immunogenicity of Catch-up Vaccination Regimens of V114 (V114-024)Pneumococcal Infections
COMPLETED606 Analytics
NCT03893448Safety, Tolerability, and Immunogenicity of V114 in Healthy Infants (V114-029)Pneumococcal Infections
COMPLETED1,720 Analytics
NCT03950622Safety and Immunogenicity of V114 in Healthy Adults (V114-019/PNEU-AGE)Pneumococcal Infections
COMPLETED1,205 Analytics
NCT03950856Lot-to-Lot Consistency of V114 in Healthy Adults (V114-020)Pneumococcal Infections
COMPLETED2,340 Analytics
NCT03731182A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 in Children With Sickle Cell Disease (V114-023/PNEU-SICKLE)Pneumococcal Infections
COMPLETED104 Analytics
PHASE3COMPLETED
Safety and Immunogenicity of V114 in Healthy Infants in South Korea (V114-036)
Pneumococcal DiseaseUnlock trial analytics
PHASE3COMPLETED
V114 and Acute Otitis Media (V114-032/PNEU-ERA)
Acute Otitis Media (AOM)Unlock trial analytics
PHASE3COMPLETED
Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 in Healthy Japanese Infants (V114-033)
Pneumococcal InfectionsUnlock trial analytics
PHASE3COMPLETED
Safety and Immunogenicity of V114 in Children Infected With Human Immunodeficiency Virus (HIV) (V114-030/PNEU-WAY PED)
Pneumococcal InfectionsUnlock trial analytics
PHASE3COMPLETED
Safety, Tolerability, and Immunogenicity of a 3-dose Regimen of V114 in Healthy Infants (PNEU-PED-EU-2/V114-026)
Pneumococcal InfectionsUnlock trial analytics
PHASE3COMPLETED
Safety and Immunogenicity of Catch-up Vaccination Regimens of V114 (V114-024)
Pneumococcal InfectionsUnlock trial analytics
PHASE3COMPLETED
Safety, Tolerability, and Immunogenicity of V114 in Healthy Infants (V114-029)
Pneumococcal InfectionsUnlock trial analytics
PHASE3COMPLETED
Safety and Immunogenicity of V114 in Healthy Adults (V114-019/PNEU-AGE)
Pneumococcal InfectionsUnlock trial analytics
PHASE3COMPLETED
Lot-to-Lot Consistency of V114 in Healthy Adults (V114-020)
Pneumococcal InfectionsUnlock trial analytics
PHASE3COMPLETED
A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 in Children With Sickle Cell Disease (V114-023/PNEU-SICKLE)
Pneumococcal InfectionsUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With ≥1 Solicited Injection-site Adverse Events
Up to 7 days after any vaccination, up to a total of ~ 13 months

An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following any of the doses of V114, the percentage of participants with solicited injection-site AEs was assessed. The solicited injection-site AEs consist of erythema, induration, pain, and swelling.

Percentage of Participants With ≥1 Solicited Systemic Adverse Events
Up to 7 days after any vaccination, up to a total of ~ 13 months

An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following any of the doses of V114, the percentage of participants with solicited systemic AEs was assessed. The solicited systemic AEs consist of decreased appetite, irritability, somnolence, and urticaria.

Percentage of Participants With ≥1 Vaccine-related Serious Adverse Events
Up to approximately 14.5 months

A serious adverse event (SAE) is an AE that is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. The percentage of participants with a vaccine-related SAE following any dose of V114 was reported. Vaccine-related SAEs were counted starting after vaccine dose 1 through completion of study.

Percentage of Participants Discontinuing Study Therapy Due to an Adverse Event
Up to approximately 13 months

An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The percentage of participants who discontinued study treatment due to an AE is reported.

Percentage of Participants With Anti-Pneumococcal Polysaccharides Serotype-specific Immunoglobulin G ≥0.35 µg/mL
30 days after vaccination 3 (Up to a total of ~5 months)

The percentage of participants with immunoglobulin G (IgG) threshold values of ≥0.35 µg/mL for the 15 serotypes contained in V114 (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 22F, 23F, and 33F) at 30 days postdose 3 is reported. The multiplex, pneumococcal electrochemiluminescence (PnECL) v2.0 assay was used to quantify IgG serotype-specific antibodies.

Geometric Mean Concentrations of Anti-Pneumococcal Polysaccharides Serotype-specific Immunoglobulin G at 30 Days Postdose 3
30 days after vaccination 3 (Up to a total of ~5 months)

The anti-pneumococcal polysaccharides (PnPs) serotype-specific IgG geometric mean concentrations (GMCs) at 30 days postdose 3 for each serotype-specific were reported. The multiplex, electrochemiluminescence (ECL)-based PnECL v2.0 assay was used to quantify IgG serotype-specific antibodies.

Number of Participants with a First Episode of Vaccine-Type Acute Otitis Media (VT-AOM) Caused by the Pneumococcal Serotypes Contained in V114
Up to ~36 months

The number of participants with VT-AOM will be presented.

Percentage of Participants with Serious Adverse Events
Up to ~36 months

A serious adverse event (SAE) is an AE that results in death, is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment.

Percentage of Participants with Vaccine-Related Serious Adverse Events
Up to ~36 months

A serious adverse event (SAE) is an AE that results in death, is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment.

Percentage of Participants Who Discontinued the Study due to Serious Adverse Events
Up to ~36 months

A serious adverse event (SAE) is an AE that results in death, is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment.

Percentage of Participants Who Died
Up to ~36 months

The percentage of participants who died from any cause during the study will be assessed.

Percentage of Participants With Solicited Injection-Site Adverse Events
Day 1 to Day 14 post any vaccination, up to a total of 13.5 months

An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following any injection with either V114 or PCV13 the percentage of participants with solicited injection-site AEs was assessed. The solicited injection-site AEs were erythema, induration, pain, and swelling.

Percentage of Participants With Solicited Systemic Adverse Events
Day 1 to Day 14 post any vaccination, up to a total of 13.5 months

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following any of the injections with either V114 or PCV13, the percentage of participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were decreased appetite, irritability, somnolence, and urticaria.

Percentage of Participants Meeting the Serotype Specific Immunoglobulin G Threshold Value of ≥0.35 μg/mL for Each Serotype in V114 After Dose 3
30 Days after Dose 3, up to a total of 11 months

The anti-pneumococcal polysaccharide (PnPs) serotype-specific immunoglobulin G (IgG) response rates (percentage of participants meeting serotype-specific IgG threshold value of ≥0.35 μg/mL of participants administered V114 versus participants administered PCV13) for the 15 serotypes contained in V114 were determined using an electrochemiluminescence assay.

Geometric Mean Concentration of Serotype-Specific IgG for the 13 Shared Serotypes in V114 and PCV13 After Dose 3
30 Days after Dose 3, up to a total of 11 months

The anti-PnPs serotype-specific IgG Geometric Mean Concentrations (GMCs) of participants administered V114 versus participants administered PCV13 for the 13 serotypes shared in V114 and PCV13 were determined using an electrochemiluminescence assay.

Percentage of Participants With a Solicited Injection-Site Adverse Event Following Vaccination With V114 or Prevnar 13™
Through 14 Days after Vaccination 1 (Up to Day 14)

An adverse event (AE) is any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Following Vaccination 1 with either V114 or Prevnar 13™, the percentage of participants with solicited injection-site AEs was assessed. The solicited injection-site AEs assessed were redness/erythema, hard lump/induration, tenderness/pain, and swelling.

Percentage of Participants With a Solicited Systemic Adverse Event Following Vaccination With V114 or Prevnar 13™
Through 14 Days after Vaccination 1 (Up to Day 14)

An AE is any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Following Vaccination 1 with either V114 or Prevnar 13™, the percentage of participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were joint pain/arthralgia, tiredness/fatigue, headache, muscle pain/myalgia, and hives or welts/urticaria.

Percentage of Participants With a Vaccine-related Serious Adverse Event (SAE) Following Vaccination 1 (V114 or Prevnar 13™) or Vaccination 2 (PNEUMOVAX™23) Through Completion of Study
Through 6 Months after Vaccination 1 (Up to Day 194)

An SAE is an AE that results in death, is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is an other important medical event deemed such by medical or scientific judgment. The percentage of participants with a vaccine-related SAE following Vaccination 1 (with either V114 or Prevnar 13™) or Vaccination 2 (PNEUMOVAX™23) through completion of study participation was reported.

Anti-PnPs Serotype-specific IgG Geometric Mean Concentrations (GMCs) at 30 Days Following Vaccination With V114 or Prevnar 13™
Day 30

The GMC of serotype-specific IgG for the serotypes contained in V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using an electrochemiluminescence assay.

Percentage of Participants With a Solicited Injection-site Adverse Event
Day 1 to Day 14 after each vaccination

An adverse event (AE) is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Solicited injection-site AEs included injection-site erythema (redness), injection-site induration (hard lump), injection-site pain (tenderness), and injection-site swelling.

Percentage of Participants With a Solicited Systemic Adverse Event
Day 1 to Day 14 after each vaccination

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Solicited systemic AEs included decreased appetite, irritability, somnolence (drowsiness), and urticaria (hives or welts).

Percentage of Participants With a Vaccine-related Serious Adverse Event
Up to approximately 6 months after Dose 3 (up to approximately 16 months)

A serious adverse event (SAE) is an AE that results in death, is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. SAEs that were reported by the investigator to be at least possibly related to the study vaccination were summarized.

Percentage of Participants Meeting Serotype-specific Immunoglobulin G (IgG) Threshold Value of ≥0.35 μg/mL 30 Days After Dose 3
30 days after Dose 3

The geometric mean concentration (GMC) of IgG serotype-specific antibodies to the 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) included in V114 and Prevenar 13™ and 2 serotypes (22F and 33F) unique to V114 were quantitated from participants' sera by a multiplex electrochemiluminescence (ECL) assay. Immunoglobulin G for the 15 serotypes contained in V114 vaccine was determined using a pneumococcal electrochemiluminescence (PnECL) assay.

Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) 30 Days After Dose 3
30 days after Dose 3

The GMC of IgG serotype-specific antibodies to the 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) included in V114 and Prevenar 13™ and 2 serotypes (22F and 33F) unique to V114 were quantitated from participants' sera by a multiplex electrochemiluminescence (ECL) assay.

Geometric Mean Concentration of Serotype-specific Immunoglobulin G - Schedule A: 7-11 Months
30 days post last vaccination

The geometric mean concentration (GMC) of immunoglobulin G (IgG) serotype-specific antibodies to the 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) included in V114 and Prevnar 13®; and two serotypes (22F and 33F) which are unique to V114 was determined. Sera from participants was used to measure vaccine-induced anti-pneumococcal polysaccharides (PnPs) serotype-specific IgG for all the 15 serotypes using pneumococcal electrochemiluminescence (PnECL) assay. The within-group 95% confidence intervals (CIs) were derived by exponentiating the CIs of the mean of the natural log values based on the t-distribution.

GMC of Serotype-specific IgG - Schedule B: 12-23 Months
30 days post last vaccination

The GMC of IgG serotype-specific antibodies to the 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) included in V114 and Prevnar 13®; and two serotypes (22F and 33F) which are unique to V114 was determined. Sera from participants was used to measure vaccine-induced anti-PnPs serotype-specific IgG for all the 15 serotypes using pneumococcal electrochemiluminescence (PnECL) assay. The within-group 95% CIs were derived by exponentiating the CIs of the mean of the natural log values based on the t-distribution.

GMC of Serotype-specific IgG - Schedule C: 2-17 Years
30 days post vaccination

The GMC of IgG serotype-specific antibodies to the 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) included in V114 and Prevnar 13®; and two serotypes (22F and 33F) which are unique to V114 was determined. Sera from participants was used to measure vaccine-induced anti-PnPs serotype-specific IgG for all the 15 serotypes using pneumococcal electrochemiluminescence (PnECL) assay. The within-group 95% CIs were derived by exponentiating the CIs of the mean of the natural log values based on the t-distribution.

Percentage of Participants With Solicited Injection-site Adverse Events - Schedule A: 7-11 Months
Up to 14 days post any vaccination

An adverse event (AE) is defined as any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. The parent/guardian of the participant recorded the presence of any vaccination report card (VRC)-prompted injection-site AEs that occurred in the 14 days after any vaccination. The percentage of participants with an injection-site AE prompted on the VRC (redness/erythema, hardness/induration, swelling, and pain) was summarized.

Percentage of Participants With Solicited Injection-site AEs - Schedule B: 12-23 Months
Up to 14 days post any vaccination

An AE is defined as any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. The parent/guardian of the participant recorded the presence of any vaccination report card (VRC)-prompted injection-site AEs that occurred in the 14 days after any vaccination. The percentage of participants with an injection-site AE prompted on the VRC (redness/erythema, hardness/induration, swelling, and pain) was summarized.

Percentage of Participants With Solicited Injection-site AEs - Schedule C: 2-17 Years
Up to 14 days post vaccination

An AE is defined as any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. The parent/guardian of the participant recorded the presence of any vaccination report card (VRC)-prompted injection-site AEs that occurred in the 14 days after any vaccination. The percentage of participants with an injection-site AE prompted on the VRC (redness/erythema, hardness/induration, swelling, and pain) was summarized.

Percentage of Participants With Solicited Systemic AEs - Schedule A: 7-11 Months
Up to 14 days post any vaccination

An AE is defined as any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. The parent/guardian of the participant recorded the presence of any VRC-prompted systemic AEs that occurred in the 14 days after any vaccination. For participants 7 months to \<3 years of age at enrollment, solicited systemic AEs include irritability, drowsiness/somnolence, appetite lost/decreased appetite, and hives or welts/urticaria. The percentage of participants with a systemic AE was summarized.

Percentage of Participants With Solicited Systemic AEs - Schedule B: 12-23 Months
Up to 14 days post any vaccination

An AE is defined as any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. The parent/guardian of the participant recorded the presence of any VRC-prompted systemic AEs that occurred in the 14 days after any vaccination. For participants 7 months to \<3 years of age at enrollment, solicited systemic AEs include irritability, drowsiness/somnolence, appetite lost/decreased appetite, and hives or welts/urticaria. The percentage of participants with a systemic AE was summarized.

Percentage of Participants With Solicited Systemic AEs - Schedule C: 2-17 Years
Up to 14 days post vaccination

An AE is defined as any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study vaccine or a protocol-specified procedure, whether or not considered related to the study vaccine or protocol-specified procedure. The parent/guardian of the participant recorded the presence of any VRC-prompted systemic AEs that occurred in the 14 days after any vaccination. For participants 7 months to \<3 years of age at enrollment, solicited systemic AEs include irritability, drowsiness/somnolence, appetite lost/decreased appetite, and hives or welts/urticaria. For participants ≥3 years of age at enrollment, solicited systemic AEs include muscle pain/ myalgia, joint pain/arthralgia, headache, tiredness/fatigue, and hives or welts/urticaria. The percentage of participants with a systemic AE was summarized.

Percentage of Participants With at Least 1 Vaccine-related Serious Adverse Event - Schedule A: 7-11 Months
Up to ~6 months post final vaccination

A serious adverse event (SAE) is any untoward medical occurrence that, at any dose, results in death, is life threatening, requires inpatient hospitalization or prolongs existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is another important medical event. SAEs that are reported to be at least possibly related by the investigator to study vaccination will be summarized. Estimated within-group CIs are calculated based on the exact binomial method proposed by Clopper and Pearson and are provided in accordance with the statistical analysis plan.

Percentage of Participants With at Least 1 Vaccine-related SAE - Schedule B: 12-23 Months
Up to ~6 months post final vaccination

A serious adverse event (SAE) is any untoward medical occurrence that, at any dose, results in death, is life threatening, requires inpatient hospitalization or prolongs existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is another important medical event. SAEs that are reported to be at least possibly related by the investigator to study vaccination will be summarized. Estimated within-group CIs are calculated based on the exact binomial method proposed by Clopper and Pearson and are provided in accordance with the statistical analysis plan.

Percentage of Participants With at Least 1 Vaccine-related SAE - Schedule C: 2-17 Years
Up to ~6 months post vaccination

A serious adverse event (SAE) is any untoward medical occurrence that, at any dose, results in death, is life threatening, requires inpatient hospitalization or prolongs existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is another important medical event. SAEs that are reported to be at least possibly related by the investigator to study vaccination will be summarized.

Percentage of Participants With Solicited Injection-Site Adverse Events (AEs) in V114 Versus Prevnar 13™
Up to 14 days after each vaccination with either V114 or Prevnar 13™

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Solicited injection-site AEs consisted of swelling, redness, pain or tenderness, and hard lump.

Percentage of Participants With Solicited Systemic AEs
Up to 14 days after each vaccination with either V114 or Prevnar 13™

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Solicited systemic AEs consisted of irritability, drowsiness, appetite lost, and hives or welts.

Percentage of Participants With Vaccine-Related Serious Adverse Events (SAEs)
From Day 1 up to 6 months after Vaccination 4 (up to 21 months)

An SAE is any untoward medical occurrence that, at any dose, results in death, is life-threatening, requires inpatient hospitalization or prolongs existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is an other important medical event. Any SAEs that are at least possibly related to vaccination are summarized.

Percentage of Participants With Anti-Pneumococcal Polysaccharide (Anti-PnP) Immunoglobulin G (IgG) Antibody (Ab) ≥0.35 ug/mL One Month After Vaccination 3
One month after Vaccination 3 (Month 7)

Anti-PnP serotype-specific IgG response rates for the 15 serotypes contained in V114 were measured with pneumococcal electrochemiluminescence (PnECL). The percentage of participants with IgG Ab ≥0.35 ug/mL are reported for each serotype.

Geometric Mean Concentration (GMC) of Anti-PnP IgG Ab One Month After Vaccination 3
One month after Vaccination 3 (Month 7)

The GMC of anti-PnP IgG Ab were measured with PnECL one month after vaccination 3 and reported for the 15 serotypes contained in V114. IgG GMCs were compared to the lowest in recipients of Prevnar 13™ excluding serotype 3 for the 2 serotypes unique to V114, and compared to the same serotypes for the 13 shared serotypes.

GMC of Anti-PnP IgG Ab One Month After Vaccination 4
One month after Vaccination 4 (Month 13 to Month 16)

The GMC of anti-PnP IgG Ab were measured with PnECL one month after vaccination 4 and reported for the 15 serotypes contained in V114. IgG GMCs were compared to the lowest in recipients of Prevnar 13™ excluding serotype 3 for the 2 serotypes unique to V114, and compared to the same serotypes for the 13 shared serotypes.

Geometric Mean Titer of Serotype-specific Opsonophagocytic Activity at Day 30
Day 30

Serotype-specific opsonophagocytic activity (OPA) geometric mean titers (GMTs) (estimated) and GMT ratios with 95% CIs and 1-sided p-values were calculated using a constrained longitudinal data analysis (cLDA) model utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMT ratios); within-group CIs were not calculated. OPA for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) were determined using a multiplexed opsonophagocytic assay (MOPA). The measure type of "number" presented in the data table below for serotype-specific OPA titer is the geometric mean.

Percentage of Participants With ≥4 Fold Rise in Serotype-specific OPA for 2 Unique V114 Serotypes
Day 1 (Baseline) and Day 30

Activity for the serotypes contained in Prevnar 13™ and V114 was determined using a multiplexed opsonophagocytic assay (MOPA). The percentage of participants who had ≥4-fold rise in OPA titers were calculated from baseline (Day 1) to 30 days postvaccination (Day 30) for OPA responses for the 2 unique serotypes in V114. The observed response percentage (m/n) included: m=the number of participants with the indicated response divided by n=the number of participants contributing to the analysis. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the percentage point difference); within-group CIs were not calculated.

Percentage of Participants With a Solicited Injection-site Adverse Event Following Vaccination With Separate V114 Lots
Up to Day 5

An adverse event (AE) is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Solicited injection-site AEs consisted of redness/erythema, swelling, and tenderness/pain. The 95% confidence interval (CI) were based on the exact binomial method proposed by Clopper and Pearson. Following vaccination with the three lots of V114 the percentage of participants with solicited injection-site AEs was assessed. Per the statistical analysis plan, the Prevnar 13™ treatment group was not included as it was not analyzed with the same approach as the separate V114 lots.

Percentage of Participants With a Solicited Injection-site Adverse Event Following Vaccination: Combined Lots of V114 or Prevnar 13™
Up to Day 5

An adverse event (AE) is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Solicited injection-site AEs consisted of redness/erythema, swelling, and tenderness/pain. Per the statistical analysis plan, within-group CIs were not calculated.

Percentage of Participants With a Solicited Systemic Adverse Event Following Vaccination With Separate V114 Lots
Up to Day 14

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Solicited systemic AEs consisted of muscle pain/myalgia, joint pain/arthralgia, headache, and tiredness/fatigue. The 95% CI were based on the exact binomial method proposed by Clopper and Pearson. Following vaccination with the three lots of V114 the percentage of participants with solicited systemic AEs was assessed. Per the statistical analysis plan, the Prevnar 13™ treatment group was not included as it was not analyzed with the same approach as the separate V114 lots.

Percentage of Participants With a Solicited Systemic Adverse Event Following Vaccination: Combined Lots of V114 or Prevnar 13™
Up to Day 14

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Solicited systemic AEs consisted of muscle pain/myalgia, joint pain/arthralgia, headache, and tiredness/fatigue. Per the statistical analysis plan, within-group CIs were not calculated.

Percentage of Participants With a Vaccine-related Serious Adverse Event Following Vaccination With Separate V114 Lots
Up to Month 6

A serious adverse event (SAE) is any untoward medical occurrence that, at any dose, results in death, is life-threatening, requires inpatient hospitalization or prolongs existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is another important medical event. Relatedness of an SAE to the study vaccine is determined by the investigator. The 95% CI were based on the exact binomial method proposed by Clopper and Pearson. Following vaccination with the three lots of V114 the percentage of participants with SAEs was assessed. Per the statistical analysis plan, the Prevnar 13™ treatment group was not included as it was not analyzed with the same approach as the separate V114 lots.

Percentage of Participants With a Vaccine-related Serious Adverse Event Following Vaccination: Combined Lots of V114 or Prevnar 13™
Up to Month 6

A serious adverse event (SAE) is any untoward medical occurrence that, at any dose, results in death, is life-threatening, requires inpatient hospitalization or prolongs existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is another important medical event. Relatedness of an SAE to the study vaccine is determined by the investigator. Per the statistical analysis plan, within-group CIs were not calculated.

Geometric Mean Titer of Serotype-specific Opsonophagocytic Activity (OPA) Following Vaccination With Separate V114 Lots
Day 30

Opsonization of pneumococci for phagocytosis is an important mechanism by which antibodies to polysaccharides protect against disease in vivo. Sera from participants was used to measure geometric mean titer (GMT) of 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) included in V114 and Prevnar 13™; and two serotypes (22F and 33F) which are unique to V114, using the Multiplexed Opsonophagocytic Assay (MOPA). Per the statistical analysis plan, within-group CIs were not calculated. 95% CIs were calculated for the GMT ratios between pairs of V114 lots by a constrained longitudinal data analysis (cLDA) model; and the Prevnar 13™ treatment group was not included as it was not analyzed with the same approach as the separate V114 lots.

Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) at Day 30
Day 30

The GMC of IgG serotype-specific antibodies to the 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) included in V114 and Prevnar 13™ and 2 serotypes (22F and 33F) unique to V114 were quantitated from participants' sera by a multiplex electrochemiluminescence (ECL) assay.

Geometric Mean Titer (GMT) Ratio of Pneumococcal Serotype-specific Opsonophagocytic Activity (OPA)
30 days after V114 vaccination (Day 30 for concomitant vaccination group and Day 60 for non-concomitant vaccination group)

Serotype-specific OPA GMTs (estimated) and GMT ratios with 95% confidence intervals (CIs) and 1-sided p-values were calculated using a constrained longitudinal data analysis (cLDA) method utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMT ratios); within-group CIs were not calculated.

GMT of Influenza Strain-Specific Hemagglutination Inhibition
Day 30

Activity for the 4 strains contained in QIV vaccine was determined using an hemagglutination inhibition (HAI) assay. Serotype-specific HAI GMTs (estimated) and GMT ratios with 95% confidence intervals (CIs) and 1-sided p-values were calculated using a constrained longitudinal data analysis (cLDA) method utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMT ratios); within-group CIs were not calculated.

Adult Participants: Percentage of Participants With a Solicited Injection-site Adverse Event Following Any of the First 3 Doses With V114 or Prevnar 13™
Up to 5 days after any of the Day 1, Day 30, or Day 60 vaccinations (V114 or Prevnar 13™)

An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following any of the first 3 doses of V114 or Prevnar 13™, the percentage of adult participants with solicited injection-site AEs was assessed. The solicited injection-site AEs were erythema, pain, and swelling.

Pediatric Participants: Percentage of Participants With a Solicited Injection-site Adverse Event Following Any of the First 3 Doses With V114 or Prevnar 13™
Up to 14 days after any of the Day 1, Day 30, or Day 60 vaccinations (V114 or Prevnar 13™)

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following any of the first 3 doses of V114 or Prevnar 13™, the percentage of pediatric participants with solicited injection-site AEs was assessed. The solicited injection-site AEs were erythema, induration, pain, and swelling.

Adult Participants: Percentage of Participants With a Solicited Systemic Adverse Event Following Any of the First 3 Doses With V114 or Prevnar 13™
Up to 14 days after any of the Day 1, Day 30, or Day 60 vaccinations (V114 or Prevnar 13™)

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following any of the first 3 doses of V114 or Prevnar 13™, the percentage of adult participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were arthralgia, fatigue, headache, and myalgia.

Pediatric Participants: Percentage of Participants With a Solicited Systemic Adverse Event Following Any of the First 3 Doses With V114 or Prevnar 13™
Up to 14 days after any of the Day 1, Day 30, or Day 60 vaccinations (V114 or Prevnar 13™)

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following any of the first 3 doses of V114 or Prevnar 13™, the percentage of pediatric participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were arthralgia, fatigue, headache, myalgia, and hives or welts.

Percentage of Participants With a Vaccine-related Serious Adverse Event Up to Month 12 After Allogeneic HSCT
Up to 9 months

A serious adverse event (SAE) is an AE that is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. The percentage of participants with a vaccine-related SAE following dose 1 (with either V114 or Prevnar 13™) was reported. Vaccine-related SAEs were counted starting after vaccine dose 1 up to 12 months post-HSCT, which could be up to 9 months post-vaccine dose 1.

Geometric Mean Concentration (GMC) of Serotype-specific Immunoglobulin G (IgG) at 30 Days Following Dose 3 With V114 or Prevnar 13™ (Day 90)
Day 90 (30 days after the Day 60 vaccinations with V114 or Prevnar 13™)

The GMC of serotype-specific IgG for the serotypes contained in V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using an electrochemiluminescence assay.

Percentage of Participants With Solicited Injection-site Adverse Events Following V114 or Prevnar 13™
Up to 5 days after Vaccination 1

An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Following Vaccination 1 with either V114 or Prevnar 13™, the percentage of participants with solicited injection-site AEs was assessed. The solicited injection-site AEs assessed were redness/erythema, swelling, and tenderness/pain. Estimated confidence intervals (CIs) are calculated based on the exact binomial method proposed by Clopper and Pearson.

Percentage of Participants With Solicited Systemic Adverse Events Following V114 or Prevnar 13™
Up to 14 days after Vaccination 1

An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Following vaccination with V114 or Prevnar 13™, the percentage of participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were muscle pain/myalgia, joint pain/arthralgia, headache, and tiredness/fatigue. Estimated CIs are calculated based on the exact binomial method proposed by Clopper and Pearson.

Percentage of Participants With a Vaccine-related Serious Adverse Event Following V114 or Prevnar 13™
Up to Month 6 (before Vaccination 2)

A serious adverse event (SAE) is an AE that is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. Relatedness of an SAE to the study vaccine was determined by the investigator. Following vaccination with V114 or Prevnar 13™, the percentage of serious adverse events of V114 compared with Prevnar 13™ was assessed. Estimated CIs are calculated based on the exact binomial method proposed by Clopper and Pearson.

Geometric Mean Titer of Serotype-specific Opsonophagocytic Activity Day 30 Following V114 or Prevnar 13™
Day 30

The geometric mean titer (GMT) of serotype-specific opsonophagocytic activity (OPA) for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using a multiplex opsonophagocytic assay. The within-group 95% CIs are obtained by exponentiating the CIs of the mean of the natural log values based on the t-distribution.

Percentage of Participants With a Solicited Injection-site Adverse Event After Vaccination 1
Up to 5 days after Vaccination 1 (Up to Day 5)

An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Solicited injection-site AEs consist of redness/erythema, swelling, and tenderness/pain. The 95% confidence interval (CI) were based on the exact binomial method proposed by Clopper and Pearson.

Percentage of Participants With a Solicited Systemic Adverse Event After Vaccination 1
Up to 14 days after Vaccination 1 (Up to Day 14)

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Solicited systemic AEs consist of muscle pain (myalgia), joint pain (arthralgia), headache, and tiredness (fatigue). The 95% CI were based on the exact binomial method proposed by Clopper and Pearson.

Percentage of Participants With a Vaccine-related Serious Adverse Event After Vaccination 1
Day 1 up to 8 weeks after Vaccination 1 (Up to Week 8)

A serious adverse event (SAE) is an AE that is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. Relatedness of an SAE to the study vaccine is determined by the investigator. The 95% CI were based on the exact binomial method proposed by Clopper and Pearson.

Geometric Mean Titer (GMT) of Serotype-specific Opsonophagocytic Activity (OPA) After Vaccination 1
Day 30

Opsonization of pneumococci for phagocytosis is an important mechanism by which antibodies to polysaccharides protect against disease in vivo. Sera from participants was used to measure geometric mean titer (GMT) of 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) included in V114 and Prevnar 13™; and two serotypes (22F and 33F) which are unique to V114, using the Multiplexed Opsonophagocytic Assay (MOPA). This assay reads the reciprocal of the highest dilution (1/dil) that gives ≥50% bacterial killing, as determined by comparison to assay background controls. The 95% CIs were derived by exponentiating the CIs of the mean of the natural log values based on the t-distribution.

Geometric Mean Concentration of Serotype-specific Immunoglobulin G (IgG) After Vaccination 1
Day 30

The geometric mean concentration of IgG serotype-specific antibodies to the 13 pneumococcal polysaccharide serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) contained in V114 and Prevnar 13™; and two serotypes (22F and 33F) which are unique to V114, were quantitated from participants' sera by multiplex electrochemiluminescence (ECL) using the pneumococcal electrochemiluminescence (PnECL) v2.0 assay, based on the Meso-Scale Discovery technology, which employs disposable multi-spot microtiter plates. The 95% CIs were derived by exponentiating the CIs of the mean of the natural log values based on the t-distribution.

Percentage of Participants With Solicited Injection-site Adverse Events Following PNEUMOVAX™23
Up to 5 days after Vaccination 2

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following vaccination with PNEUMOVAX™23, the percentage of participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were muscle pain/myalgia, joint pain/arthralgia, headache, and tiredness/fatigue.

Percentage of Participants With Solicited Systemic Adverse Events Following PNEUMOVAX™23
Up to 14 days after Vaccination 2

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following vaccination with PNEUMOVAX™23, the percentage of participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were muscle pain/myalgia, joint pain/arthralgia, headache, and tiredness/fatigue.

Percentage of Participants With Vaccine-related Serious Adverse Events Following V114 or Prevnar 13™
Up to 12 months after Vaccination 1

A serious adverse event (SAE) is an AE that is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. Relatedness of an SAE to the study vaccine will be determined by the investigator. Following vaccination with V114 or Prevnar 13™, the percentage of participants with vaccine-related serious adverse events was assessed.

Percentage of Participants With Vaccine-related Serious Adverse Events Following PNEUMOVAX™23
Month 12 to Month 13 (Up to 44 days after Vaccination 2)

A serious adverse event (SAE) is an AE that is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. Relatedness of an SAE to the study vaccine will be determined by the investigator. Following vaccination with PNEUMOVAX™23, the percentage of participants with vaccine-related serious adverse events was assessed.

Geometric Mean Titer of Serotype-specific Opsonophagocytic Activity at 30 Days Following PNEUMOVAX™23
Month 13 (30 days after Vaccination 2)

Serotype-specific opsonophagocytic activity (OPA) geometric mean titers (GMTs) (estimated) and GMT ratios with 95% confidence intervals (CIs) were calculated using a constrained longitudinal data analysis (cLDA) model utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMT ratios); within-group CIs were not calculated. OPA for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using a Multiplexed Opsonophagocytic Assay.

Percentage of Participants With an Adverse Event (AE)
Up to Day 44 after vaccination

An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.

Percentage of Participants With a Solicited Injection-site Adverse Event (AE)
Up to Day 5 after vaccination

Solicited injection-site AEs consisted of erythema/redness, swelling, and pain/tenderness.

Percentage of Participants With a Solicited Systemic Adverse Event (AE)
Up to Day 14 after vaccination

Solicited systemic AEs consisted of fatigue, arthralgia, myalgia, and headache.

Geometric Mean Concentrations (GMCs) of Serotype-specific Immunoglobulin G (IgG)
Baseline (Day 1) and Day 30 after vaccination

The IgG GMCs of each pneumococcal serotype were calculated on Day 1 (baseline) and Day 30 after vaccination. Concentrations were determined using pneumococcal electrochemiluminescence.

Geometric Mean Fold Rise (GMFR) From Baseline in Geometric Mean Concentrations (GMCs) of Serotype-specific Immunoglobulin G (IgG)
Baseline (Day 1) and Day 30 after vaccination

The GMFR (Day 30 geometric mean concentration \[GMC\] / Day 1 GMC) from baseline (Day 1) to Day 30 of each pneumococcal IgG serotype was calculated. Concentrations of each pneumococcal serotype were determined using pneumococcal electrochemiluminescence.

Percentage of Participants With ≥4-fold Rise From Baseline in Geometric Mean Concentrations (GMCs) of Serotype-specific Immunoglobulin G (IgG)
Baseline (Day 1) and Day 30 after vaccination

The percentage of participants with ≥4-fold rise from baseline (Day 1) to Day 30 in GMCs of each pneumococcal serotype was calculated. Concentrations of each pneumococcal serotype were determined using pneumococcal electrochemiluminescence.

Percentage of Participants With a Vaccine-related Serious Adverse Event (SAE)
Up to 4 weeks post vaccination 4 (~14.5 months)

An SAE is an AE that is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. Relatedness of an SAE to the study vaccine was determined by the investigator.

Adults: Percentage of Participants With an Adverse Event
Up to 6 weeks after vaccination

An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening of a preexisting condition that is temporally associated with the use of the Sponsor's product, is also an AE.

Infants: Percentage of Participants With an Adverse Event
Up to 1 month after Vaccination 4 (Month 11-15)

An AE is defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening of a preexisting condition that is temporally associated with the use of the Sponsor's product, is also an AE.

Infants: Percentage of Participants With Study Vaccination Withdrawn Due to an Adverse Event
Up to time of Vaccination 4 (Month 10-13)

An AE is defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening of a preexisting condition that is temporally associated with the use of the Sponsor's product, is also an AE.

Infants: Percentage of Participants With a Solicited Injection-site Adverse Event
Up to 14 days after any vaccination

Solicited injection-site AEs were injection-site erythema, injection-site induration, injection-site pain, and injection-site swelling.

Infants: Percentage of Participants With a Solicited Systemic Adverse Event
Up to 14 days after any vaccination

Solicited systemic AEs were irritability, decreased appetite, somnolence, and urticaria.

Infants: Geometric Mean Concentration (GMC) of Pneumococcal Serotype IgG Antibodies
1 month after Vaccination 3 (Month 5)

Pneumococcal serotype-specific IgG was measured in serum using an electrochemiluminescence assay.

Secondary Endpoints

Geometric Mean Concentrations of Anti-Pneumococcal Polysaccharides Serotype-specific Immunoglobulin G at 30 Days Postdose 4
30 days after vaccination 4 (Up to a total of ~14 months)
GMC of Serotype-Specific IgG for the 2 Unique V114 Serotypes After Dose 3
30 days after Dose 3, up to a total of 11 months
Percentage of Participants Meeting the Serotype Specific IgG Threshold Value of ≥0.35 μg/mL for Each Serotype in V114 After Dose 4
30 Days after Dose 4, up to a total of 14 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposePREVENTION

Treatment Arms

ArmTypeDescription
V114EXPERIMENTALParticipants received 4 total doses of V114, administered at approximately 2, 4, 6, and 12 to 15 months of age.
ControlOTHER -
Pneumococcal 13-valent Conjugate Vaccine (PCV13)ACTIVE_COMPARATORParticipants will receive a single 0.5 mL subcutaneous injection of PCV13 administered at 2 to 6 months of age, and second and third dose is administered at an interval of ≥27 days from the prior dose. The fourth dose is administered at 12 to 15 months of age.
Prevnar 13™ACTIVE_COMPARATORParticipants will receive a single 0.5 mL IM injection of Prevnar 13™ on Day 1 (Vaccination 1) and a single 0.5 mL IM injection of PNEUMOVAX™23 at Week 8 (Vaccination 2)
Prevenar 13™ACTIVE_COMPARATORParticipants will receive a single 0.5 mL IM injection of Prevenar 13™ at Visit 1, 2, and 4 (approximately 3, 5, and 12 months of age). As part of the study design, participants will also receive other pediatric vaccines, including Vaxelis™ (0.5 mL single dose at Visits 1, 2, and 4); M-M-R™II (0.5 mL single dose at Visit 4); and VARIVAX™ (0.5 mL single dose at Visit 4, except participants in Norway and Denmark, who will receive a second dose of VARIVAX™ at Visit 5, according to local vaccination requirements).
V114, Schedule A: Participants 7-11 monthsEXPERIMENTALEach participant received a 0.5 mL intramuscular (IM) injection for 7 to 11 months of age (Pneumococcal conjugate vaccine \[PCV\]-naïve)(3 doses). Dose 1: at randomization, Dose 2: 4 to 8 weeks after Dose 1, and Dose 3: 8 to 12 weeks after Dose 2 and ≥12 months of age.
Prevnar 13®, Schedule A: Participants 7-11 monthsACTIVE_COMPARATOREach participant received a 0.5 mL IM injection for 7 to 11 months of age (PCV-naïve)(3 doses). Dose 1: at randomization, Dose 2: 4 to 8 weeks after Dose 1, and Dose 3: 8 to 12 weeks after Dose 2 and ≥12 months of age.
V114, Schedule B: Participants 12-23 monthsEXPERIMENTALEach participant received a 0.5 mL IM injection for 12 to 23 months of age (PCV-naïve)(2 doses). Dose 1: at randomization, and Dose 2: 8 to 12 weeks after Dose 1.
Prevnar 13®, Schedule B: Participants 12-23 monthsACTIVE_COMPARATOREach participant received a 0.5 mL IM injection for 12 to 23 months of age (PCV-naïve)(2 doses). Dose 1: at randomization, and Dose 2: 8 to 12 weeks after Dose 1.
V114, Schedule C: Participants 2-17 yearsEXPERIMENTALEach participant received a 0.5 mL IM injection for 2 to 17 years of age (PCV-naïve or PCV-experienced) (1 dose). Single dose administered at randomization and at least 8 weeks after previous PCV for participants who were PCV-experienced.
Prevnar 13®, Schedule C: Participants 2-17 yearsACTIVE_COMPARATOREach participant received a 0.5 mL IM injection for 2 to 17 years of age (PCV-naïve or PCV-experienced)(1 dose). Single dose administered at randomization and at least 8 weeks after previous PCV for participants who were PCV-experienced.
V114 Lot 1EXPERIMENTALSingle intramuscular (IM) dose at 0.5 mL of V114 Lot 1 pneumococcal conjugate vaccine at Visit 1 (Day 1)
V114 Lot 2EXPERIMENTALSingle IM dose at 0.5 mL of V114 Lot 2 pneumococcal conjugate vaccine at Visit 1 (Day 1)
V114 Lot 3EXPERIMENTALSingle IM dose at 0.5 mL of V114 Lot 3 pneumococcal conjugate vaccine at Visit 1 (Day 1)
Concomitant VaccinationEXPERIMENTALParticipants will receive a single 0.5 mL intramuscular (IM) injection of V114 and a single 0.5 mL IM injection of QIV on Day 1 and a single 0.5 mL injection of placebo on Day 30
Non-concomitant VaccinationEXPERIMENTALParticipants will receive a single 0.5 mL IM injection of QIV and a single 0.5 mL IM injection of placebo on Day 1 and a single 0.5 mL injection of V114 on Day 30
V114-SCEXPERIMENTALInfant participants will receive a single 0.5 mL subcutaneous (SC) injection of V114 on Visit 1, 2, 3 and 5 (approximately 3, 4, 5, and 12 to 15 months of age). Infant participants will receive a single 0.5 mL SC injection of concomitant study vaccine \[Adsorbed Diphtheria-purified Pertussis-tetanus-inactivated polio (Sabin strain) Combined Vaccine (DTaP-IPV) at the same time as V114-SC.
V114-IMEXPERIMENTALInfant participants will receive a single 0.5 mL intramuscular (IM) injection of V114 at Visit 1, 2, 3 and 5 (approximately 3, 4, 5, and 12 to 15 months of age). Infant participants will receive a single 0.5 mL SC injection of concomitant study vaccine (DTaP-IPV) at the same time as V114-IM.
PCV13-SCACTIVE_COMPARATORInfant participants will receive a single 0.5 mL subcutaneous (SC) injection of pneumococcal 13-valent conjugate vaccine (PCV13) at Visit 1, 2, 3 and 5 (approximately 3, 4, 5, and 12 to 15 months of age). Infant participants will receive a single 0.5 mL SC injection of concomitant study vaccine (DTaP-IPV) at the same time as PCV13-SC.
Adult: V114 Medium DoseEXPERIMENTALAdult participants will receive a single 0.5 mL intramuscular injection of medium-dose V114 on Day 1.
Adult: V114 High DoseEXPERIMENTALAdult participants will receive a single 0.5 mL intramuscular injection of high-dose V114 on Day 1.
Adult: V114 Medium Dose with Alternative Carrier ProteinEXPERIMENTALAdult participants will receive a single 0.5 mL intramuscular injection of medium-dose V114 with alternative carrier protein on Day 1.
Adult: V114 High Dose with Alternative Carrier ProteinEXPERIMENTALAdult participants will receive a single 0.5 mL intramuscular injection of high-dose V114 with alternative carrier protein on Day 1.
Infant: V114 Medium DoseEXPERIMENTALInfant participants will receive a 0.5 mL intramuscular injection of medium-dose V114 at 2, 4, 6, and 12 to 15 months of age.
Infant: V114 High DoseEXPERIMENTALInfant participants will receive a 0.5 mL intramuscular injection of high-dose V114 at 2, 4, 6, and 12 to 15 months of age.
Infant: V114 Medium Dose with Alternative Carrier ProteinEXPERIMENTALInfant participants will receive a 0.5 mL intramuscular injection of medium-dose V114 with alternative carrier protein at 2, 4, 6, and 12 to 15 months of age.
Infant: V114 High Dose with Alternative Carrier ProteinEXPERIMENTALInfant participants will receive a 0.5 mL intramuscular injection of high-dose V114 with alternative carrier protein at 2, 4, 6, and 12 to 15 months of age.
Infant: Prevnar 13™ACTIVE_COMPARATORInfant participants will receive a 0.5 mL intramuscular injection of Prevnar 13™ at 2, 4, 6, and 12 to 15 months of age.

Interventions

NameTypeDescription
V114BIOLOGICAL15-valent pneumococcal conjugate vaccine (PCV) containing 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F) present in Prevnar 13™ plus 2 additional serotypes (22F, 33F) in each 0.5 mL sterile suspension for intramuscular injection.
Pediatric vaccinesOTHERStandard of care vaccines administered according to the local recommended schedule.
PCV13BIOLOGICAL13-valent pneumococcal conjugate vaccine containing 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F) in each subcutaneous 0.5 mL single dose.
Prevnar 13™BIOLOGICAL13-valent pneumococcal conjugate vaccine containing 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F) in each 0.5 mL dose.
PNEUMOVAX™23BIOLOGICAL23-valent pneumococcal polysaccharide vaccine containing 23 serotypes (1, 2, 3, 4, 5, 6B, 7F, 8, 9N, 9V, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F, 33F) in each 0.5 mL dose
Prevenar 13™DRUG13-valent pneumococcal conjugate vaccine with serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 23F, serotype 6B in each 0.5. mL dose.
Vaxelis™DRUGIntramuscular 0.5 mL single dose
M-M-R®IIDRUGSubcutaneous 0.5 mL single dose
VARIVAX™DRUGSubcutaneous 0.5 mL single dose
Prevnar 13®BIOLOGICALPrevnar 13® 13-valent PCV containing 13 serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) in each 0.5 mL IM administration.
RotaTeq™BIOLOGICALA total of 3 RotaTeq™ 2 mL oral dosings at \~2, \~4, and \~6 months of age.
Pentacel™BIOLOGICALA total of 3 Pentacel™ 0.5 mL IM dosings at \~2, \~4, and \~6 months of age.
RECOMBIVAX HB™BIOLOGICALA total of 3 RECOMBIVAX HB™ 0.5 mL IM dosings at \~2, \~4, and \~6 months of age.
VAQTA™BIOLOGICALOne VAQTA™ 0.5 mL IM dosing at 12 to 15 months of age.
MMR II™BIOLOGICALOne MMR II™ 0.5 mL subcutaneous (SC) dosing at 12 to 15 months of age.
HIBERIX™BIOLOGICALOne HIBERIX™ 0.5 mL IM dosing at Visit 5.
QIVBIOLOGICALSingle 0.5 mL injection
Matching Placebo for V114BIOLOGICALSingle 0.5 mL injection
Pneumococcal 13-valent Conjugate Vaccine (PCV13)BIOLOGICAL13-valent pneumococcal conjugate vaccine with serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 23F, serotype 6B in each 0.5. mL dose.
Adsorbed Diphtheria-purified Pertussis-tetanus-inactivated polio (Sabin strain) Combined Vaccine (DTaP-IPV)BIOLOGICALSingle SC dose of 0.5 mL at Visits 1, 2, 3 and 5 (approximately 3, 4, 5, and 12 to 15 months of age).
V114 Medium DoseBIOLOGICAL15-valent pneumococcal conjugate vaccine with serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19F, 19A, 22F, 23F, 33F (2 mcg each), serotype 6B (4 mcg) and Merck Aluminum Phosphate Adjuvant (125 mcg) in each 0.5 mL dose
V114 High DoseBIOLOGICAL15-valent pneumococcal conjugate vaccine with serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19F, 19A, 22F, 23F, 33F (4 mcg each), serotype 6B (8 mcg), and Merck Aluminum Phosphate Adjuvant (250 mcg) in each 0.5 mL dose
V114 Medium Dose with Alternative Carrier ProteinBIOLOGICAL15-valent pneumococcal conjugate vaccine with serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19F, 19A, 22F, 23F, 33F (2 mcg each), serotype 6B (4 mcg), and Merck Aluminum Phosphate Adjuvant (125 mcg) with alternative carrier protein in each 0.5 mL dose
V114 High Dose with Alternative Carrier ProteinBIOLOGICAL15-valent pneumococcal conjugate vaccine with serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19F, 19A, 22F, 23F, 33F (4 mcg each), serotype 6B (8 mcg), and Merck Aluminum Phosphate Adjuvant (250 mcg) with alternative carrier protein in each 0.5 mL dose
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Eligibility Criteria

Age Range42 Days to 90 Days
SexALL
Healthy VolunteersYes
Study Sites19

Inclusion Criteria: * is a healthy South Korean male or female who is 42 to 90 days of age at the time of signing informed consent * has a parent or legally acceptable representative who understands study procedures, alternative treatments available, and risks involved and voluntarily agrees to par...

Countries:South KoreaThailandJapanSouth AfricaUkraineDenmarkFinlandItalyNorwaySwedenMalaysiaPolandRussiaUnited StatesPuerto RicoTurkey (Türkiye)CanadaSpainTaiwanAustraliaChileUnited KingdomBrazilColombiaDominican RepublicGreecePanamaGermanyIsraelPeruBelgiumFranceMexicoNew Zealand
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Frequently asked questions about V114

What is V114 used for?

V114 is an investigational monoclonal antibody being developed for the prevention of pneumococcal infections, pneumococcal disease, and acute otitis media (AOM). It is currently in Phase 3 clinical development and has not been approved by the FDA.

Who makes V114?

V114 is being developed by Merck & Company, Inc., which trades under the ticker symbol MRK on the New York Stock Exchange. The company is conducting clinical trials to evaluate the safety and efficacy of this investigational therapy.

What phase is V114 in?

V114 is in Phase 3 clinical development. It has completed 17 clinical trials with a total enrollment of 15,346 participants. All trials are completed, and the drug remains investigational, meaning it is not yet approved for commercial use.

What clinical trials is V114 in?

V114 has completed several clinical trials, including NCT02531373, NCT03848065, NCT04193215, and NCT04633226. These trials evaluated the safety, tolerability, and immunogenicity of V114 in healthy adults, infants, and specific populations such as Japanese and South Korean infants.

Is V114 the same as any other drug?

V114 is also known by its development code V114-005, V114-028, V114-032, and V114-036, which refer to specific clinical trial protocols. These names are used interchangeably in clinical research to identify the same investigational drug.