A Phase 2 Study to Learn About a Monovalent Pneumococcal Conjugate Candidate in Healthy Toddlers

NCT ID: NCT06116591

Last Updated: 2025-05-08

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

105 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-11-08

Study Completion Date

2024-05-27

Brief Summary

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The purpose of the study is to learn about the effects of a monovalent (single component) pneumococcal conjugate candidate (mPnC candidate) when given to toddlers between 11 and 15 months of age.

All participants in this study will receive 2 doses of either mPnC candidate or mPnC control at the clinic approximately 8 weeks apart. All participants will also receive their third (toddler) dose of PCV10 at Visit 1.

Detailed Description

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Conditions

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Healthy Participants

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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mPnC candidate

Participants will receive the mPnC candidate at Visit 1 and Visit 3 (approximately 8 weeks apart). PCV10 will also be given at Visit 1.

Group Type EXPERIMENTAL

mPnC candidate

Intervention Type BIOLOGICAL

monovalent pneumococcal conjugate candidate

mPnC control

Participants will receive the mPnC control at Visit 1 and Visit 3 (approximately 8 weeks apart). PCV10 will also be given at Visit 1.

Group Type ACTIVE_COMPARATOR

mPnC control

Intervention Type BIOLOGICAL

monovalent pneumococcal conjugate control

Interventions

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mPnC candidate

monovalent pneumococcal conjugate candidate

Intervention Type BIOLOGICAL

mPnC control

monovalent pneumococcal conjugate control

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Toddlers ≥11 to ≤15 months of age at the time of consent.
* Have received exactly 2 infant doses of PCV10 according to a local immunization schedule.
* Healthy toddlers determined by clinical assessment, including medical history and clinical judgment, to be eligible for the study.

Exclusion Criteria

* History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) to any component of study intervention, 13vPnC, 20vPnC, or any diphtheria toxoid-containing vaccine.
* significant neurological disorder or history of seizure (excluding febrile seizure) or significant stable or evolving disorders such as cerebral palsy, encephalopathy, hydrocephalus, or other significant disorders.
* Major known congenital malformation or serious chronic disorder.
* History of microbiologically proven invasive disease caused by S pneumoniae.
* Previous vaccination with any licensed pneumococcal vaccine (other than the PCV10 primary infant series) or investigational pneumococcal vaccine, or planned receipt of nonstudy pneumococcal vaccine during study participation.
Minimum Eligible Age

11 Months

Maximum Eligible Age

15 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pfizer CT.gov Call Center

Role: STUDY_DIRECTOR

Pfizer

Locations

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FVR, Kokkolan rokotetutkimusklinikka

Kokkola, Keski-Pohjanmaa, Finland

Site Status

FVR, Oulun rokotetutkimusklinikka

Oulu, North Ostrobothnia, Finland

Site Status

FVR, Tampereen rokotetutkimusklinikka

Tampere, Pirkanmaa, Finland

Site Status

FVR, Seinäjoen rokotetutkimusklinikka

Seinäjoki, South Ostrobothnia, Finland

Site Status

FVR, Turun rokotetutkimusklinikka

Turku, Southwest Finland, Finland

Site Status

FVR, Espoon rokotetutkimusklinikka

Espoo, Uusimaa, Finland

Site Status

FVR, Etelä-Helsingin rokotetutkimusklinikka

Helsinki, Uusimaa, Finland

Site Status

MeVac - Meilahti Vaccine Research Center

Helsinki, Uusimaa, Finland

Site Status

FVR, Järvenpään rokotetutkimusklinikka

Järvenpää, Uusimaa, Finland

Site Status

Centrum Medyczne Pratia Bydgoszcz

Bydgoszcz, Kuyavian-Pomeranian Voivodeship, Poland

Site Status

NZOZ Praktyka Lekarza Rodzinnego "ESKULAP"

Lublin, Lublin Voivodeship, Poland

Site Status

Countries

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Finland Poland

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Related Links

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https://pmiform.com/clinical-trial-info-request?StudyID=C4801002

To obtain contact information for a study center near you, click here.

Other Identifiers

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2023-505154-18-00

Identifier Type: REGISTRY

Identifier Source: secondary_id

C4801002

Identifier Type: -

Identifier Source: org_study_id

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