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Multivalent Pneumococcal Vaccine- Formulation 1

Phase 1

Pneumococcal Disease | Monoclonal antibody | Infectious Disease |Pfizer, Inc.|Last Updated: Jun 10, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment1,363

FDA Designations

No designations recorded

Clinical trial landscape

Multivalent Pneumococcal Vaccine- Formulation 1 · 1 trial · 1 indication

Phase 1 1
NCT06182124A Study to Learn About the Safety and Immune Response of a New Pneumococcal Vaccine in AdultsPneumococcal Disease
COMPLETED1,363 Analytics
PHASE1COMPLETED
A Study to Learn About the Safety and Immune Response of a New Pneumococcal Vaccine in Adults
Pneumococcal DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of participants reporting prespecified local reactions within 7 days after vaccination
7 days

Prespecified local reactions (redness, swelling, and pain at the injection site) after vaccination

Percentage of participants reporting prespecified systemic events within 7 days after vaccination
7 days

Prespecified systemic events (fever, headache, fatigue, muscle pain, and joint pain) after vaccination

Percentage of participants reporting Adverse Events (AEs) within 1 month after vaccination
1 month

Adverse events occurring within 1 month after vaccination

Percentage of participants reporting Serious Adverse Events (SAEs) within 6 months after vaccination
6 months

SAEs occurring within 6 months after vaccination

Phase 2 (Stage 2) Only: Percentage of participants reporting related Serious Adverse Events (SAEs) through 12 months after vaccination
12 months

Related SAEs occurring through 12 months after vaccination

Secondary Endpoints

Phase 1 (Stage 1) and Phase 2 (Stage 2) Only: Pneumococcal opsonophagocytic activity (OPA) geometric mean titers (GMTs)
1 month after vaccination
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Phase 1 (Stage 1): Multivalent Pneumococcal Vaccine - Formulation 1EXPERIMENTALParticipants to receive a single injection of Multivalent Pneumococcal Vaccine - Formulation 1. This is a possible candidate for continuation in Phase 2 (Stage 2, 3, and 4).
Phase 1 (Stage 1): Multivalent Pneumococcal Vaccine - Formulation 2EXPERIMENTALParticipants to receive a single injection of Multivalent Pneumococcal Vaccine - Formulation 2. This is a possible candidate for continuation in Phase 2 (Stage 2, 3, and 4).
Phase 1 (Stage 1) and Phase 2 (Stage 2): 20-valent pneumococcal conjugate vaccine (20vPnC)ACTIVE_COMPARATORParticipants to receive a single injection of 20vPnC.
Phase 2 (Stage 3): a licensed pneumococcal comparator vaccineACTIVE_COMPARATORParticipants to receive a single injection of a licensed pneumococcal comparator vaccine.
Phase 2 (Stage 4): Multivalent Pneumococcal Vaccine - Formulation 3EXPERIMENTALParticipants to receive a single injection of Multivalent Pneumococcal Vaccine - Formulation 3.
Phase 2 (Stage 4): Multivalent Pneumococcal Vaccine - Formulation 4EXPERIMENTALParticipants to receive a single injection of Multivalent Pneumococcal Vaccine - Formulation 4.

Interventions

NameTypeDescription
Multivalent Pneumococcal Vaccine - Formulation 1BIOLOGICALMultivalent pneumococcal conjugate vaccine. This is a possible candidate for continuation in Phase 2 (Stages 2, 3, and 4).
Multivalent Pneumococcal Vaccine - Formulation 2BIOLOGICALMultivalent pneumococcal conjugate vaccine. This is a possible candidate for continuation in Phase 2 (Stages 2, 3, and 4).
20-valent pneumococcal conjugate vaccine (20vPnC)BIOLOGICAL20-valent pneumococcal conjugate vaccine (20vPnC)
Licensed pneumococcal comparator vaccineBIOLOGICALA licensed pneumococcal comparator vaccine
Multivalent Pneumococcal Vaccine - Formulation 3BIOLOGICALMultivalent pneumococcal conjugate vaccine
Multivalent Pneumococcal Vaccine - Formulation 4BIOLOGICALMultivalent pneumococcal conjugate vaccine
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites20

Inclusion Criteria: * Male or female participants ≥18 to\<50 years of age (Stage 1) and ≥50 years of age (Stage 2, Stage 3, and Stage 4) at the time of consent * Adults determined by clinical assessment to be eligible for the study, including adults with preexisting stable disease within 12 weeks b...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMJul 11, 2026NCT06182124TRIAL_REMOVED: changed
MEDIUMJul 11, 2026NCT06182124TRIAL_REMOVED: changed
MEDIUMJul 11, 2026NCT06182124TRIAL_REMOVED: changed
HIGHJun 10, 2026NCT06182124Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHJun 10, 2026NCT06182124Status: ACTIVE_NOT_RECRUITING → COMPLETED

Frequently asked questions about Multivalent Pneumococcal Vaccine- Formulation 1

What is Multivalent Pneumococcal Vaccine- Formulation 1 used for?

Multivalent Pneumococcal Vaccine- Formulation 1 is an investigational vaccine being studied for the prevention of pneumococcal disease, a bacterial infection that can cause pneumonia, meningitis, and bloodstream infections. It is currently in Phase 1 clinical development and is not yet approved by regulatory authorities.

Who makes Multivalent Pneumococcal Vaccine- Formulation 1?

Multivalent Pneumococcal Vaccine- Formulation 1 is being developed by Pfizer, Inc. (NYSE: PFE). The company is conducting clinical trials to evaluate the safety and immune response of this investigational vaccine in adults.

What phase is Multivalent Pneumococcal Vaccine- Formulation 1 in?

Multivalent Pneumococcal Vaccine- Formulation 1 is in Phase 1 clinical development. A Phase 1 trial has been completed, and the vaccine remains investigational. It has not been approved by the FDA or any other regulatory agency for commercial use.

What clinical trials is Multivalent Pneumococcal Vaccine- Formulation 1 in?

Multivalent Pneumococcal Vaccine- Formulation 1 has one completed clinical trial, NCT06182124, titled "A Study to Learn About the Safety and Immune Response of a New Pneumococcal Vaccine in Adults." This Phase 1 study enrolled 1,363 participants in the United States and was randomized, double-blind, and active-controlled.

Is Multivalent Pneumococcal Vaccine- Formulation 1 a monoclonal antibody?

Multivalent Pneumococcal Vaccine- Formulation 1 is classified as a monoclonal antibody modality, though it is being developed as a vaccine to prevent pneumococcal disease. The distinction between these categories is not further detailed in the available clinical trial information.