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Prevnar 13

Phase 1

Streptococcus Pneumoniae Infection | Monoclonal antibody | Infectious Disease |Merck & Company, Inc.|Last Updated: Jun 24, 2019

Target and mechanism

ModalityMonoclonal antibody

Also known as PREVNAR 20™, PREVNAR 20

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment341

FDA Designations

No designations recorded

Clinical trial landscape

Prevnar 13 · 1 trial · 2 indications

Phase 1 1
NCT02037984Safety, Tolerability and Immunogenicity of V114 in Healthy Adults and Infants (V114-004)Streptococcus Pneumoniae Infection
COMPLETED341 Analytics
PHASE1COMPLETED
Safety, Tolerability and Immunogenicity of V114 in Healthy Adults and Infants (V114-004)
Streptococcus Pneumoniae InfectionUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Adult Participants Experiencing ≥1 Adverse Event (AE)
Up to 14 days

An AE is defined as 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 Adult Participants Discontinuing From Study Treatment Due to an Adverse Event (AE)
Up to 14 days

An AE is defined as 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 Infant Participants Experiencing ≥1 Adverse Event (AE)
Up to 14 days after the 4th vaccination (approximately 12.5 to 15.5 months of age)

An AE is defined as 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. For infants, AEs were monitored for up to 14 days following each vaccination.

Percentage of Infant Participants Discontinuing From Study Treatment Due to an Adverse Event (AE)
Up to 14 days after the 4th vaccination (approximately 12.5 to 15.5 months of age)

An AE is defined as 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. For infants, AEs were monitored for up to 14 days following each vaccination.

Geometric Mean Concentration (GMC) of Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibodies at 1 Month Postdose 3 (PD3) in Infants: V114 1x:1x:1x vs. Prevnar 13®
Month 7 (1 month PD3)

The IgG antibody GMCs of each Prevnar 13®-type (PT) or non-Prevnar 13® type (non-PT) serotype at 1 month PD3 following V114 or Prevnar 13® treatment were determined with the pneumococcal electrochemiluminescence (Pn ECL) assay. Data reflect the GMC of each serotype.

Geometric Mean Concentration (GMC) of Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibodies at 1 Month Postdose 3 (PD3) in Infants: V114 2x:1x:2x vs. Prevnar 13®
Month 7 (1 month PD3)

The IgG antibody GMCs of each Prevnar 13®-type (PT) or non-Prevnar 13® type (non-PT) serotype at 1 month PD3 following V114 or Prevnar 13® treatment were determined with the pneumococcal electrochemiluminescence (Pn ECL) assay. Data reflect the GMC of each serotype.

Geometric Mean Concentration (GMC) of Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibodies at 1 Month Postdose 3 (PD3) in Infants: V114 2x:2x:2x vs. Prevnar 13®
Month 7 (1 month PD3)

The IgG antibody GMCs of each Prevnar 13®-type (PT) or non-Prevnar 13® type (non-PT) serotype at 1 month PD3 following V114 or Prevnar 13® treatment were determined with the pneumococcal electrochemiluminescence (Pn ECL) assay. Data reflect the GMC of each serotype.

Geometric Mean Concentration (GMC) of Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibodies at 1 Month Postdose 3 (PD3) in Infants: V114 0.5x:0.5x:2x vs. Prevnar 13®
Month 7 (1 month PD3)

The IgG antibody GMCs of each Prevnar 13®-type (PT) or non-Prevnar 13® type (non-PT) serotype at 1 month PD3 following V114 or Prevnar 13® treatment were determined with the pneumococcal electrochemiluminescence (Pn ECL) assay. Data reflect the GMC of each serotype.

Geometric Mean Concentration (GMC) of Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibodies at 1 Month Postdose 3 (PD3) in Infants: V114 1x:1x:2x vs. Prevnar 13®
Month 7 (1 month PD3)

The IgG antibody GMCs of each Prevnar 13®-type (PT) or non-Prevnar 13® type (non-PT) serotype at 1 month PD3 following V114 or Prevnar 13® treatment were determined with the pneumococcal electrochemiluminescence (Pn ECL) assay. Data reflect the GMC of each serotype.

Estimated Fold-Rise Per-Unit Change in Serotype-specific Antibody Concentrations Following an Increase in Polysaccharide Concentrations in Infants at 1 Month Postdose 3 (PD3)
Month 7 (1 month PD3)

A mulitvariate regression model was used to evaluate the impact of increasing polysaccharide concentration from 1x to 2x on the natural logarithm of serotype-specific antibody concentrations 1 month PD3. Data points show the mean estimated fold-rise-per-unit change in antibody concentration following an increase from 1x to 2x in polysaccharide concentration. For each Prevnar 13®-type (PT) or non-Prevnar 13®-type (non-PT) serotypes, values \>1.0 show an increase in antibody concentration whereas values \<1.0 show a decrease in antibody concentration.

Estimated Fold-Rise Per-Unit Change on Serotype-specific Antibody Concentrations Following an Increase in Aluminum Phosphate Adjuvant (APA) Concentration 1 Month Postdose 3 (PD3) in Infants
Month 7 (1 month PD3)

A mulitvariate regression model was used to evaluate the impact of increasing APA concentration on the natural logarithm of serotype-specific antibody concentrations 1 month PD3. Data points show the mean estimated fold-rise-per-unit change in antibody concentration following an increase in APA. For each Prevnar 13®-type (PT) or non-Prevnar 13®-type (non-PT) serotypes, values \>1.0 show an increase in antibody concentration whereas values \<1.0 show a decrease in antibody concentration.

Secondary Endpoints

Percentage of Infant Participants Achieving the Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Threshold Value of ≥0.35 μg/mL at 1 Month Postdose 3 (PD3): V114 Formulations With 2x Aluminum Phosphate Adjuvant (APA)
Month 7 (1 month PD3)
Percentage of Infant Participants Achieving the Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody Threshold Value of ≥0.35 μg/mL at 1 Month Postdose 3 (PD3): V114 Formulations With 1x Aluminum Phosphate Adjuvant (APA)
Month 7 (1 month PD3)
Percentage of Infant Participants Achieving the Pneumococcal Immunoglobulin G (IgG) Serotype-specific Antibody Threshold Value of ≥0.35 μg/mL at 1 Month Postdose 4 (PD4): V114 1x:1x:1x vs Prenar 13®
One month following the 4th vaccination (approximately 13 to 16 months of age).
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Adult V114: 1x:1x:1xEXPERIMENTALAdults receive a single vaccination on Day 1.
Adult V114: 2x:2x:2xEXPERIMENTALAdults receive a single vaccination on Day 1.
Infant V114: 1x:1x:1xEXPERIMENTALInfants receive 4 total vaccinations given at 2, 4, 6, and 12 to 15 months of age.
Infant V114: 2x:1x:2xEXPERIMENTALInfants receive 4 total vaccinations given at 2, 4, 6, and 12 to 15 months of age.
Infant V114: 2x:2x:2xEXPERIMENTALInfants receive 4 total vaccinations given at 2, 4, 6, and 12 to 15 months of age.
Infant V114: 0.5x:0.5x:2xEXPERIMENTALInfants receive 4 total vaccinations given at 2, 4, 6, and 12 to 15 months of age.
Infant V114: 1x:1x:2xEXPERIMENTALInfants receive 4 total vaccinations given at 2, 4, 6, and 12 to 15 months of age.
Infant Prevnar 13®ACTIVE_COMPARATORInfants receive 4 total vaccinations given at 2, 4, 6, and 12 to 15 months of age.

Interventions

NameTypeDescription
Prevnar 13®BIOLOGICALPneumococcal capsular polysaccharide serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 23F (2.2 µg each), and 6B (4.4 µg) in each 0.5 mL dose.
V114 1x:1x:1xBIOLOGICALV114 1x:1x:1x contains 2.0 μg of polysaccharide serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 22F, 23F, and 33F; 4.0 μg of polysaccharide serotype 6B; and 125 µg of Aluminum Phosphate Adjuvant (APA).
V114 2x:2x:2xBIOLOGICALV114 2x:2x:2x contains 4.0 μg of polysaccharide serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 22F, 23F, and 33F; 8.0 μg of polysaccharide serotype 6B; and 250 µg of APA.
V114 2x:1x:2xBIOLOGICALV114 2x:1x:2x contains 4.0 μg of polysaccharide serotypes 6A, 18C, 19A, 19F, and 23F; 2.0 μg of polysaccharide serotypes 1, 3, 4, 5, 7F, 9V, 14, 22F, and 33F; 8.0 μg of polysaccharide serotype 6B; and 250 µg of APA.
V114 1x:1x:2xBIOLOGICALV114 1x:1x:2x contains 2.0 μg of polysaccharide serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 22F, 23F, and 33F; 4.0 μg of polysaccharide serotype 6B; and 250 µg of APA.
V114 0.5x:0.5x:2xBIOLOGICALV114 0.5x:0.5x:2x contains 1.0 μg of polysaccharide serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 22F, 23F, and 33F; 2.0 μg of polysaccharide serotype 6B; and 250 µg of APA.
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Eligibility Criteria

Age Range6 Weeks to 49 Years
SexALL
Healthy VolunteersYes

Inclusion Criteria Infants: \- Healthy and able to attend all scheduled visits. Adults: \- Highly unlikely to conceive from vaccination to 6 weeks after administration of the vaccine. Exclusion Criteria Infants and Adults: * Prior administration of any pneumococcal vaccine, any non-live vacci...

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Frequently asked questions about Prevnar 13

What is Prevnar used for?

Prevnar is a pneumococcal conjugate vaccine used for the prevention of pneumococcal infections, including those caused by Streptococcus pneumoniae. It is being studied in healthy adults, infants, and older adults to evaluate its safety, tolerability, and immunogenicity against these bacterial infections.

Who makes Prevnar?

Prevnar is developed by Merck & Company, Inc., which trades under the ticker symbol MRK. The company is conducting clinical trials to evaluate the vaccine's safety and immunogenicity in various populations, including healthy infants, adults, and older individuals.

What phase is Prevnar in?

Prevnar is in Phase 3 clinical development. While some early-phase trials have been completed, the most advanced studies are Phase 3 trials evaluating the vaccine's safety and immunogenicity, including a study in healthy infants and another in adults aged 50 years and older.

What clinical trials is Prevnar in?

Prevnar has been studied in several clinical trials, including NCT01215175, NCT02037984, NCT02225587, and NCT03620162. These trials evaluated the vaccine's safety, tolerability, and immunogenicity in healthy adults, infants, and older adults, with all trials completed.

Is Prevnar the same as PREVNAR 20?

Prevnar is also known as PREVNAR 20™ or PREVNAR 20. These names refer to the same pneumococcal conjugate vaccine being developed by Merck & Company, Inc. for the prevention of pneumococcal infections.

How does Prevnar work?

Prevnar is a pneumococcal conjugate vaccine that works by stimulating the immune system to produce antibodies against Streptococcus pneumoniae, the bacteria that cause pneumococcal infections. This helps protect against diseases such as pneumonia and other invasive pneumococcal infections.