A Clinical Study of Novel Pneumococcal Vaccine V118C in Children (V118C-002)

NCT ID: NCT07300267

Last Updated: 2026-02-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

210 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-13

Study Completion Date

2029-05-25

Brief Summary

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Researchers are looking for new vaccines to prevent pneumococcal disease, which is any infection in the lungs or other parts of the body that is caused by a type of bacteria called Streptococcus pneumoniae. V118C is a new vaccine designed to help prevent disease from Streptococcus pneumoniae bacteria.

This study will look at V118C in toddlers and infants. The goal of the study is to learn how safe V118C is for children and how well they tolerate it.

Detailed Description

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Stage 1 of the study will be conducted in toddlers enrolled at 12 through 15 months of age who previously completed a primary 3-dose infant series with a licensed pneumococcal conjugate vaccine (PCV). Stage 2 will be conducted in infants enrolled at approximately 2 months of age, who will receive the 3+1 schedule (3 infant doses followed by a toddler dose).

Conditions

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Pneumococcal Infection

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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V118C (Stage 1)

Participants will receive a single 0.5 mL intramuscular (IM) injection of V118C administered at 12 to 15 months of age.

Group Type EXPERIMENTAL

V118C (Stage 1)

Intervention Type BIOLOGICAL

IM administration of V118C

V118C (Stage 2)

Participants will receive a single 0.5 mL IM injection of V118C administered at 2,4,6, and 12 months of age.

Group Type EXPERIMENTAL

V118C (Stage 2)

Intervention Type BIOLOGICAL

IM administration of V118C

PCV20 (Stage 1)

Participants will receive a single 0.5 mL IM injection of PCV20 administered at 12 to 15 months of age.

Group Type ACTIVE_COMPARATOR

PCV20 (Stage 1)

Intervention Type BIOLOGICAL

IM administration of PCV20

PCV20 (Stage 2)

Participants will receive a single 0.5 mL IM injection of PCV20 administered at 2,4,6, and 12 months of age.

Group Type ACTIVE_COMPARATOR

PCV20 (Stage 2)

Intervention Type BIOLOGICAL

IM administration of PCV20

Interventions

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V118C (Stage 1)

IM administration of V118C

Intervention Type BIOLOGICAL

V118C (Stage 2)

IM administration of V118C

Intervention Type BIOLOGICAL

PCV20 (Stage 1)

IM administration of PCV20

Intervention Type BIOLOGICAL

PCV20 (Stage 2)

IM administration of PCV20

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

Stage 1:

* Is previously vaccinated with 3 routine infant doses of Pneumococcal 20-valent conjugate vaccine (PCV20)
* Is 12 through 15 months of age

Stage 2:

\- Is approximately 2 months of age

Both Stages:

* Was born at full term (gestational age greater than or equal to 37 weeks)

Exclusion Criteria

Stage 1:

\- Has received a PCV dose at 10 months of age and older

Stage 2:

* Has received prior administration of any pneumococcal vaccine

Both stages:

* Has a history of invasive pneumococcal disease (IPD)
* Has a known hypersensitivity to any component of V118C or PCV20 including diphtheria toxoid
Minimum Eligible Age

2 Months

Maximum Eligible Age

15 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Merck Sharp & Dohme LLC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Medical Director

Role: STUDY_DIRECTOR

Merck Sharp & Dohme LLC

Locations

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Madera Family Medical Group ( Site 1004)

Madera, California, United States

Site Status RECRUITING

Cotton O'Neil Research Center ( Site 1039)

Topeka, Kansas, United States

Site Status RECRUITING

University of Louisville, Norton Children's Research Institute ( Site 1005)

Louisville, Kentucky, United States

Site Status RECRUITING

Tribe Clinical Research, LLC-Pediatrics ( Site 1008)

Greenville, South Carolina, United States

Site Status RECRUITING

Tribe Clinical Research, LLC-Pediatrics ( Site 1001)

Spartanburg, South Carolina, United States

Site Status RECRUITING

Epic Medical Research - Carrollton ( Site 1038)

Carrollton, Texas, United States

Site Status RECRUITING

University of Texas Medical Branch ( Site 1020)

League City, Texas, United States

Site Status RECRUITING

Pediatric Research of Charlottesville, LLC ( Site 1012)

Charlottesville, Virginia, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Toll Free Number

Role: CONTACT

1-888-577-8839

Facility Contacts

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Study Coordinator

Role: primary

559-673-3000

Study Coordinator

Role: primary

785-354-6000

Study Coordinator

Role: primary

502-629-5820

Study Coordinator

Role: primary

864-334-0141

Study Coordinator

Role: primary

864-334-0141

Study Coordinator

Role: primary

972-777-6956

Study Coordinator

Role: primary

832-340-2313

Study Coordinator

Role: primary

434-872-9384

Related Links

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https://www.merckclinicaltrials.com

Merck Clinical Trials Information

Other Identifiers

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V118C-002

Identifier Type: -

Identifier Source: org_study_id

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