A Study on the Immune Response and Safety of an Investigational Chickenpox Vaccine and a Marketed Measles, Mumps and Rubella Vaccine When Administered as Intramuscular Injection to Healthy Children 12 to 15 Months of Age

NCT ID: NCT06855160

Last Updated: 2025-12-04

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

PHASE3

Total Enrollment

900 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-04-17

Study Completion Date

2027-02-02

Brief Summary

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This study aims to assess the immune response and safety of GSK's candidate chickenpox and marketed MMR vaccines when given to children 12 to 15 months of age via a muscle injection. It compares the GSK vaccines to Merck's chickenpox vaccine, administered just under the skin. Additionally, the study will evaluate the immune response and safety of giving the GSK vaccines along with other childhood vaccines through a muscle injection.

Detailed Description

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Conditions

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Chickenpox

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

This is an Open Label study.

Study Groups

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VNS+ MMR Vaccine

Participants receive 1 dose of the candidate varicella vaccine (VNS vaccine), 1 dose of a measles, mumps, and rubella (MMR) vaccine, 1 dose of a hepatitis A virus (HAV vaccine), and 1 dose of PCV (either PCV 13 or Vaxneuvance or PCV 20) on Day 1.

Group Type EXPERIMENTAL

Candidate varicella vaccine

Intervention Type BIOLOGICAL

Investigational varicella vaccine administered intramuscularly.

MMR vaccine

Intervention Type BIOLOGICAL

MMR vaccine administered subcutaneously or intramuscularly.

Hepatitis A vaccine

Intervention Type BIOLOGICAL

Hepatitis A vaccine co-administered intramuscularly.

PCV (pneumococcal conjugate vaccine) 13

Intervention Type BIOLOGICAL

The 13-valent pneumococcal conjugate vaccine co-administered intramuscularly. In some countries PCV will only be administered depending on the availability, country's registration status and national recommendations for pneumococcal vaccination at the time of study conduct.

PCV 20

Intervention Type BIOLOGICAL

The 20-valent pneumococcal conjugate vaccine co-administered intramuscularly. In some countries PCV will only be administered depending on the availability, country's registration status and national recommendations for pneumococcal vaccination at the time of study conduct.

Vaxneuvance

Intervention Type BIOLOGICAL

The Vaxneuvance (15-valent pneumococcal conjugate vaccine) co-administered intramuscularly. In some countries Vaxneuvancewill only be administered depending on the availability, country's registration status and national recommendations for pneumococcal vaccination at the time of study conduct.

VV+MMR Vaccine

Participants receive 1 dose of a Marketed varicella vaccine (VV), 1 dose of a MMR vaccine, 1 dose of a HAV vaccine, and 1 dose of PCV (either PCV 13 or Vaxneuvance or PCV 20) on Day 1.

Group Type ACTIVE_COMPARATOR

Marketed varicella vaccine

Intervention Type BIOLOGICAL

Marketed varicella vaccine administered subcutaneously.

MMR vaccine

Intervention Type BIOLOGICAL

MMR vaccine administered subcutaneously or intramuscularly.

Hepatitis A vaccine

Intervention Type BIOLOGICAL

Hepatitis A vaccine co-administered intramuscularly.

PCV (pneumococcal conjugate vaccine) 13

Intervention Type BIOLOGICAL

The 13-valent pneumococcal conjugate vaccine co-administered intramuscularly. In some countries PCV will only be administered depending on the availability, country's registration status and national recommendations for pneumococcal vaccination at the time of study conduct.

PCV 20

Intervention Type BIOLOGICAL

The 20-valent pneumococcal conjugate vaccine co-administered intramuscularly. In some countries PCV will only be administered depending on the availability, country's registration status and national recommendations for pneumococcal vaccination at the time of study conduct.

Vaxneuvance

Intervention Type BIOLOGICAL

The Vaxneuvance (15-valent pneumococcal conjugate vaccine) co-administered intramuscularly. In some countries Vaxneuvancewill only be administered depending on the availability, country's registration status and national recommendations for pneumococcal vaccination at the time of study conduct.

Interventions

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Candidate varicella vaccine

Investigational varicella vaccine administered intramuscularly.

Intervention Type BIOLOGICAL

Marketed varicella vaccine

Marketed varicella vaccine administered subcutaneously.

Intervention Type BIOLOGICAL

MMR vaccine

MMR vaccine administered subcutaneously or intramuscularly.

Intervention Type BIOLOGICAL

Hepatitis A vaccine

Hepatitis A vaccine co-administered intramuscularly.

Intervention Type BIOLOGICAL

PCV (pneumococcal conjugate vaccine) 13

The 13-valent pneumococcal conjugate vaccine co-administered intramuscularly. In some countries PCV will only be administered depending on the availability, country's registration status and national recommendations for pneumococcal vaccination at the time of study conduct.

Intervention Type BIOLOGICAL

PCV 20

The 20-valent pneumococcal conjugate vaccine co-administered intramuscularly. In some countries PCV will only be administered depending on the availability, country's registration status and national recommendations for pneumococcal vaccination at the time of study conduct.

Intervention Type BIOLOGICAL

Vaxneuvance

The Vaxneuvance (15-valent pneumococcal conjugate vaccine) co-administered intramuscularly. In some countries Vaxneuvancewill only be administered depending on the availability, country's registration status and national recommendations for pneumococcal vaccination at the time of study conduct.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Participant's parent(s)/ Legally acceptable representatives (LAR\[s\]), who, in the opinion of the investigator, can and will comply with the requirements of the protocol (e.g., completion of the eDiaries, return for follow-up visits).
* Written or witnessed/thumb printed informed consent obtained from the participant's parent(s)/LAR(s) prior to performance of any study-specific procedure.
* Healthy participants as established by medical history and clinical examination before entering into the study.
* A male or female between, and including, 12 to 15 months of age (i.e., from the day of 1-year birthday until the day before 16 months of age) at the time of the administration of study interventions.
* Only for children in countries where PCV is recommended at 12 to 15 months of age as per national immunization schedule and provided as part of the study interventions:

* Participant who previously received the primary series of PCV in the first year of life with last dose at least 60 days prior to the administration of study intervention.

Exclusion Criteria

* History of any reaction or hypersensitivity likely to be exacerbated by any component of the study interventions including hypersensitivity to neomycin or gelatin.
* Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination (no laboratory testing required).
* Hypersensitivity to latex.
* Major congenital defects, as assessed by the investigator.
* Recurrent history of uncontrolled neurological disorders or seizures.
* History of measles, mumps, rubella, or varicella disease.
* Active untreated tuberculosis.
* Participants with bleeding disorders (e.g., thrombocytopenia or any coagulation disorder).
* Condition that in the judgment of the investigator would make intramuscular injection unsafe.
* Any other clinical condition that, in the opinion of the investigator, might pose additional risk to the participant due to participation in the study.

Prior/Concomitant therapy

* Use of any investigational or non-registered product (drug, vaccine or invasive medical device) other than the study interventions during the period beginning 30 days before the dose of study interventions administration (Day -29 to Day 1), or their planned use during the study period.
* Chronic administration of immune-modifying drugs (defined as more than 14 consecutive days in total) and/or planned use of long-acting immune modifying treatments at any time up to the end of the study.

\- Up to 90 days prior to the study intervention administration:
* For corticosteroids, this will mean prednisone equivalent \>=0.5 mg/kg/day with maximum of 20 mg/day for pediatric participants. Inhaled and topical steroids are allowed.
* Administration of immunoglobulins and/or any blood products or plasma derivatives.

\- Up to 180 days prior to study interventions administration: long acting immune-modifying drugs including among others immunotherapy (e.g., tumor necrosis factor-inhibitors), monoclonal antibodies (except the ones not interfering with the immune response to the study vaccines, e.g., nirsevimab), antitumoral medication.
* Previous vaccination against measles, mumps, and rubella.
* Previous vaccination against varicella virus.
* Previous vaccination against hepatitis A virus.
* Only for children in countries where PCV is recommended at 12 to 15 months of age as per national immunization schedule and provided as part of the study interventions, participant who previously received a booster dose of any PCV.

Prior/Concurrent clinical study experience

• Concurrently participating in another clinical study, at any time during the study period, in which the participant has been or will be exposed to an investigational or a non-investigational intervention (drug/invasive medical device).


* Any study personnel or their immediate dependents, family, or household members.
* Child in care.
* Participants with the following high-risk individuals in their household: • Immunocompromised individuals.
* Pregnant women without documented history of varicella.
* Newborn infants of mothers without documented history of varicella.
* Newborn infants born \<28 weeks of gestation
Minimum Eligible Age

12 Months

Maximum Eligible Age

15 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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GSK Investigational Site

Tucson, Arizona, United States

Site Status RECRUITING

GSK Investigational Site

Huntington Park, California, United States

Site Status RECRUITING

GSK Investigational Site

Sherman Oaks, California, United States

Site Status RECRUITING

GSK Investigational Site

Coral Gables, Florida, United States

Site Status RECRUITING

GSK Investigational Site

Miami Lakes, Florida, United States

Site Status RECRUITING

GSK Investigational Site

Tampa, Florida, United States

Site Status RECRUITING

GSK Investigational Site

Idaho Falls, Idaho, United States

Site Status RECRUITING

GSK Investigational Site

Dayton, Ohio, United States

Site Status RECRUITING

GSK Investigational Site

Houston, Texas, United States

Site Status RECRUITING

GSK Investigational Site

Lewisville, Texas, United States

Site Status RECRUITING

GSK Investigational Site

Pharr, Texas, United States

Site Status RECRUITING

GSK Investigational Site

Alken, , Belgium

Site Status RECRUITING

Countries

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United States Belgium

Central Contacts

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US GSK Clinical Trials Call Center

Role: CONTACT

877-379-3718

EU GSK Clinical Trials Call Center

Role: CONTACT

+44 (0) 20 89904466

Facility Contacts

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US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

Other Identifiers

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2024-518840-18-00

Identifier Type: OTHER

Identifier Source: secondary_id

223105

Identifier Type: -

Identifier Source: org_study_id

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