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CompletedNCT05630846Updated Jun 22, 2025Results posted

A Study on the Immune Response and Safety of a Combined Measles, Mumps, Rubella, Chickenpox Vaccine Compared to a Marketed Combined Vaccine, Given to Healthy Children 4 to 6 Years of Age

A Phase 2 interventional study of Investigational MMRV(H)NS vaccine and Investigational MM(H)RVNS vaccine in Measles; Mumps; Rubella; Chickenpox and Measles, sponsored by GlaxoSmithKline. Completed at 47 sites in 5 countries. Open to participants aged 4 Years to 6 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-06-22.

Sponsored by GlaxoSmithKline · Phase 2, Interventional, and Prevention

Phase
Phase 2
Study type
Interventional
Enrollment
801
Allocation
Randomized
Ages
4 Years to 6 Years
Sex
All
01

Study summary

The main purpose of this study is to assess immune response and safety of various potencies of a measles, mumps, rubella, and varicella (MMRVNS) vaccines given to healthy children of 4 to 6 years of age.

Read the detailed description

This study is designed to evaluate the immunogenicity and safety of the investigational measles, mumps, rubella, varicella vaccine (referred to as the MMRVNS vaccine) compared with the licensed measles, mumps, rubella, varicella vaccine, ProQuad (referred to as the MMRV vaccine), when given as a second dose to children 4 to 6 years of age who were previously primed with a first dose of any combination of measles, mumps, rubella, and varicella-containing vaccine(s).

This study will evaluate immunogenicity and safety using 3 MMRVNS formulations which vary for some or all the individual virus potencies. The 3 MMRVNS formulations (designated as MMRV(H)NS vaccine, MM(H)RVNS vaccine and M(L)M(L)R(L)V(L)NS vaccine) will be compared with the MMRV vaccine. To ensure representative data on the comparator, participants enrolled in the MMRV group will be randomized to two different lots (designated as MMRV_Lot 1 and MMRV_Lot 2). Throughout the study, the two lots will be analyzed as a pooled group.

02

Conditions studied

  • Measles; Mumps; Rubella; Chickenpox
  • Measles

Keywords

  • Measles
  • Mumps
  • Rubella
  • Varicella
03

In context

Measles

134 studies on the registry are indexed under Measles; 17 are open to participants now.

This study's enrollment of 801 is close to the median of 852 across 105 interventional studies indexed under Measles.

Browse Measles studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,650 studies on the registry; 118 are open to participants now.

Of its 264 completed or terminated interventional studies of FDA-regulated products, 241 (91%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
4 Years to 6 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Healthy participants as established by medical history and clinical examination before entering into the study.
  • A male or female between, and including, 4 years and 6 years of age (i.e., from 4 year birthday until the day before the 7-year birthday) at the time of study intervention administration, and in accordance with local regulations.
  • Participant who previously received a first dose of varicella-containing vaccine in the second year of life.
  • Participant who previously received a single dose of measles-, mumps-, rubella-containing vaccine in the second year of life.
  • Written obtained from the participants' parent(s)/legally acceptable representative(s) (LAR[s]) prior to performance of any study-specific procedure (participant informed assent will be obtained from participants in line with local rules and regulations).
  • Participants' parent(s)/LAR(s), who, in the opinion of the investigator, can and will comply with the requirements of the protocol (e.g., completion of electronic diaries [eDiaries], return for follow-up visits).

Exclusion criteria

Exclusion Criteria:

Medical Conditions

  • History of any reaction or likely to be exacerbated by any component of the study interventions including hypersensitivity to neomycin or gelatin.
  • Any confirmed or suspected 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.
  • History of measles, mumps, rubella, or varicella disease.
  • Recurrent history of or uncontrolled neurological disorders or seizures.
  • Acute disease at the time of enrollment. Acute disease is defined as the presence of a moderate or severe illness with or without fever. Fever is defined as body temperature >=38.0 degrees Celsius (°C) (100.4 degrees Fahrenheit [°F)] by any age-appropriate route. All study interventions can be administered to participants with a minor illness such as diarrhea, mild upper respiratory infection without fever.
  • Participant with history of coronavirus disease 2019 (COVID-19) who is still symptomatic.
  • 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 and Concomitant Therapy

  • Use of any or non-registered product (drug, vaccine, or medical device) other than the study interventions during the period beginning 30 days before the dose of study interventions (Day -29 to Day 1), or their planned use during the study period.
  • Chronic administration (defined as more than 14 days in total) of immunosuppressants or other immune-modifying drugs during the period starting 90 days prior to the study intervention administration. For , this will mean prednisone equivalent >= 0.5 mg/kg/day or 20 mg/day whichever is the maximum dose for pediatric participants. Inhaled and topical steroids are allowed.
  • Administration of immunoglobulins and/or any blood products or plasma derivatives during the period starting 180 days before the dose of study interventions or planned administration during the study period.
  • Administration of long-acting immune-modifying drugs at any time during the study period (e.g., infliximab).
  • Previous vaccination with a second dose of varicella-containing vaccine or measles-, mumps-, rubella-containing vaccine.
  • Administration or planned administration of a vaccine not foreseen by the study protocol in the period starting 30 days before the dose and ending at 43 days after the dose of study interventions administration* (Visit 3), with the exception of:

    • inactivated influenza (flu) vaccine which may be given at any time during the study and administered at a different location than the study interventions and,
    • routinely recommended licensed childhood DTPa-containing vaccines which can preferably be co-administered according to the local immunization practices of the participating country.
  • Any other age-appropriate vaccine may be given starting at Visit 3 and anytime thereafter.

    • In case an emergency mass vaccination for an unforeseen public health threat (e.g., a pandemic) is recommended and/or organized by public health authorities outside the routine immunization program, the time period described above can be reduced if necessary for that vaccine, provided it is used according to the local government recommendations and that GSK/IQVIA is notified accordingly.

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).

Other Exclusions

  • Child in care.
  • Any study personnel's immediate dependents, family, or household members.
  • 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.
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
801 participants (actual)

Study arms

  • Experimental
    MMRV(H)NS Group

    Participants receive a single dose of an investigational measles, mumps, and rubella (MMR) at release potency and varicella at high (V\[H\]NS) potency vaccine on Day 1.

    Biological: Investigational MMRV(H)NS vaccine

  • Experimental
    MM(H)RVNS Group

    Participants receive a single dose of an investigational measles, rubella (MR), and varicella (VNS) at release potency and mumps at high (M\[H\]) potency vaccine on Day 1.

    Biological: Investigational MM(H)RVNS vaccine

  • Experimental
    M(L)M(L)R(L)V(L)NS Group

    Participants receive a single dose of an investigational measles, mumps, rubella (MMR), and varicella (VNS), all at low (L) potency vaccine on Day 1.

    Biological: Investigational M(L)M(L)R(L)V(L)NS vaccine

  • Active comparator
    MMRV_Lot 1 and Lot 2 Pooled Group

    Participants receive a single dose of a marketed measles, mumps, rubella (MMR), and varicella (V) vaccine of Lot 1 or of 1 vaccine dose of a marketed MMRV vaccine of Lot 2 on Day 1.

    Biological: Marketed MMRV_Lot 1 and Lot 2 vaccine

Interventions

  • BiologicalInvestigational MMRV(H)NS vaccine

    1 dose of a measles, mumps, and rubella at release potency and VNS at high (H) potency vaccine administered subcutaneously.

  • BiologicalInvestigational MM(H)RVNS vaccine

    1 dose of a measles, rubella, and varicella at release potency and mumps at high (H) potency vaccine administered subcutaneously.

  • BiologicalInvestigational M(L)M(L)R(L)V(L)NS vaccine

    1 dose of measles, mumps, rubella, and varicella, all at low (L) potency vaccine administered subcutaneously.

  • BiologicalMarketed MMRV_Lot 1 and Lot 2 vaccine

    Drug page: Measles, mumps, rubella, varicella vaccine

    1 dose of a marketed measles, mumps, rubella, and varicella of Lot 1 or 1 dose of a marketed measles, mumps, rubella, and varicella of Lot 2 vaccine administered subcutaneously.

    Also known as: ProQuad

06

What researchers measure

Primary outcomes

  1. GMC of Anti-measles Antibodies at Day 43

    Anti-measles antibodies were measured with multiplex luminex based immuno assay and the results were expressed as GMC, in milli international units per milliliter (mIU/mL). Analysis was performed on per protocol set which included all eligible participants who received study intervention as per protocol, were not unblinded, had immunogenicity results pre- and post-dose for at least 1 antigen, complied with blood draw interval between study intervention and post- dose blood sample, without intercurrent medical conditions that may interfere with immunogenicity and without prohibited concomitant medication/vaccination. Only participants with data available at specified timepoint were included in the analysis.

    Time frame: At Day 43

  2. GMC of Anti-mumps Antibodies at Day 43

    Anti-mumps antibodies were measured with multiplex luminex based immuno assay and the results were expressed as GMC, in arbitrary units per milliliter (AU/mL). Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

    Time frame: At Day 43

  3. GMC of Anti-rubella Antibodies at Day 43

    Anti-rubella antibodies were measured with multiplex luminex based immuno assay and the results were expressed as GMC, in international units per milliliter (IU/mL). Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

    Time frame: At Day 43

  4. GMC of Anti-glycoprotein E (gE) Antibodies at Day 43

    Anti-gE antibodies were measured with enzyme linked immunosorbent assay and the results were expressed as GMC, in mIU/mL. Anti-varicella and anti-varicella zoster virus gE were used interchangeably. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

    Time frame: At Day 43

Secondary outcomes

  1. Percentage of Participants With Seroresponse for Measles Antibodies at Day 43

    Seroresponse was defined as the participants of participants for whom the Day 43 measles antibodies concentration was \>=116 mIU/mL. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

    Time frame: At Day 43

  2. Percentage of Participants With Seroresponse for Mumps Antibodies at Day 43

    Seroresponse was defined as the participants of participants for whom the Day 43 mumps antibodies concentration was \>=296 AU/mL. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

    Time frame: At Day 43

  3. Percentage of Participants With Seroresponse for Rubella Antibodies at Day 43

    Seroresponse was defined as the participants of participants for whom the Day 43 rubella antibodies concentration was \>=24 IU/mL. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

    Time frame: At Day 43

  4. Percentage of Participants With Seroresponse for Varicella Antibodies at Day 43

    Seroresponse was defined as the participants of participants for whom the Day 43 varicella antibodies concentration was \>=300 mIU/mL. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

    Time frame: At Day 43

  5. Number of Participants With Solicited Administration Site Adverse Events (AEs) During the 4-day Period After Vaccine Dose Administration

    The solicited administration site events after vaccination included pain, erythema/redness, and swelling. Analysis was performed on exposed set which included all participants who received a study intervention. Only those participants with solicited AEs were included in this analysis.

    Time frame: Day 1 to Day 4

  6. Number of Participants With Solicited Systemic AEs During the 4-day Period After Vaccine Dose Administration

    The solicited systemic events after vaccination included drowsiness and loss of appetite. Analysis was performed on exposed set. Only those participants with solicited AEs were included in this analysis.

    Time frame: Day 1 to Day 4

  7. Number of Participants With Solicited Systemic AEs During the 43-day Period After Vaccine Dose Administration

    The solicited systemic events after vaccination included fever, measles/rubella-like rash, varicella- like rash and other rash (not measles/rubella-like rash or varicella-like rash). Fever was defined as temperature greater than or equal to 38.0 degrees Celsius (100.4 degrees Fahrenheit) by any route (the preferred location for measuring temperature is the axilla). Analysis was performed on exposed set. Only those participants with solicited AEs were included in this analysis.

    Time frame: Day 1 to Day 43

  8. Number of Participants With Unsolicited AEs During the 43-day Period After Vaccine Dose Administration

    An AE was any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study vaccine, which does not necessarily have a causal relationship with study vaccine. An unsolicited AE was an AE that was either not included in the list of solicited events or was included in the list of solicited events but with an onset outside the specified period of follow- up for solicited events. Unsolicited AEs must have been communicated by participant/participant's caregiver(s) who had signed the informed consent. Unsolicited AEs included both serious adverse events (SAEs) and non-serious AEs. Analysis was performed on exposed set.

    Time frame: Day 1 to Day 43

  9. Number of Participants With SAEs After Vaccine Dose Administration

    An SAE was defined as any untoward medical occurrence that, at any dose, resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, resulted in congenital anomaly or other significant medical events. Analysis was performed on exposed set.

    Time frame: Throughout the study period (Day 1 to Day 181)

07

Results

Posted Jun 22, 2025

Participant flow

Out of the 801 participants enrolled, 796 were included in the Exposed set and started the study.

Participant flow — Overall Study
MilestoneMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Started198200203195
Completed187192197189
Not completed11866
Withdrew: Death1000
Withdrew: Withdrawal by subject3341
Withdrew: Lost to follow-up6525
Withdrew: Other1000

Outcome measures

PrimaryGMC of Anti-measles Antibodies at Day 43

Anti-measles antibodies were measured with multiplex luminex based immuno assay and the results were expressed as GMC, in milli international units per milliliter (mIU/mL). Analysis was performed on per protocol set which included all eligible participants who received study intervention as per protocol, were not unblinded, had immunogenicity results pre- and post-dose for at least 1 antigen, complied with blood draw interval between study intervention and post- dose blood sample, without intercurrent medical conditions that may interfere with immunogenicity and without prohibited concomitant medication/vaccination. Only participants with data available at specified timepoint were included in the analysis.

Time frame:
At Day 43
Reported as:
Geometric mean · mIU/mL
GMC of Anti-measles Antibodies at Day 43
mIU/mLMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
GMC of Anti-measles Antibodies at Day 43801 ± 691788 ± 682728 ± 622682 ± 581
PrimaryGMC of Anti-mumps Antibodies at Day 43

Anti-mumps antibodies were measured with multiplex luminex based immuno assay and the results were expressed as GMC, in arbitrary units per milliliter (AU/mL). Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

Time frame:
At Day 43
Reported as:
Geometric mean · AU/mL
GMC of Anti-mumps Antibodies at Day 43
AU/mLMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
GMC of Anti-mumps Antibodies at Day 433369 ± 29764770 ± 42593114 ± 27713176 ± 2830
PrimaryGMC of Anti-rubella Antibodies at Day 43

Anti-rubella antibodies were measured with multiplex luminex based immuno assay and the results were expressed as GMC, in international units per milliliter (IU/mL). Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

Time frame:
At Day 43
Reported as:
Geometric mean · IU/mL
GMC of Anti-rubella Antibodies at Day 43
IU/mLMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
GMC of Anti-rubella Antibodies at Day 43159 ± 145178 ± 163158 ± 144149 ± 137
PrimaryGMC of Anti-glycoprotein E (gE) Antibodies at Day 43

Anti-gE antibodies were measured with enzyme linked immunosorbent assay and the results were expressed as GMC, in mIU/mL. Anti-varicella and anti-varicella zoster virus gE were used interchangeably. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

Time frame:
At Day 43
Reported as:
Geometric mean · mIU/mL
GMC of Anti-glycoprotein E (gE) Antibodies at Day 43
mIU/mLMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
GMC of Anti-glycoprotein E (gE) Antibodies at Day 434229 ± 37233743 ± 32573369 ± 29344002 ± 3493
SecondaryPercentage of Participants With Seroresponse for Measles Antibodies at Day 43

Seroresponse was defined as the participants of participants for whom the Day 43 measles antibodies concentration was \>=116 mIU/mL. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

Time frame:
At Day 43
Reported as:
Number · Percentage of participants
Percentage of Participants With Seroresponse for Measles Antibodies at Day 43
Percentage of participantsMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Percentage of Participants With Seroresponse for Measles Antibodies at Day 4399.4 ± 96.7198.2 ± 94.9696.3 ± 92.1195.2 ± 90.83
SecondaryPercentage of Participants With Seroresponse for Mumps Antibodies at Day 43

Seroresponse was defined as the participants of participants for whom the Day 43 mumps antibodies concentration was \>=296 AU/mL. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

Time frame:
At Day 43
Reported as:
Number · Percentage of participants
Percentage of Participants With Seroresponse for Mumps Antibodies at Day 43
Percentage of participantsMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Percentage of Participants With Seroresponse for Mumps Antibodies at Day 4398.8 ± 95.74100.0 ± 97.87100.0 ± 97.7599.4 ± 96.73
SecondaryPercentage of Participants With Seroresponse for Rubella Antibodies at Day 43

Seroresponse was defined as the participants of participants for whom the Day 43 rubella antibodies concentration was \>=24 IU/mL. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

Time frame:
At Day 43
Reported as:
Number · Percentage of participants
Percentage of Participants With Seroresponse for Rubella Antibodies at Day 43
Percentage of participantsMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Percentage of Participants With Seroresponse for Rubella Antibodies at Day 43100.0 ± 97.82100.0 ± 97.87100.0 ± 97.75100.0 ± 97.83
SecondaryPercentage of Participants With Seroresponse for Varicella Antibodies at Day 43

Seroresponse was defined as the participants of participants for whom the Day 43 varicella antibodies concentration was \>=300 mIU/mL. Analysis was performed on per protocol set. Only participants with data available at specified timepoint were included in the analysis.

Time frame:
At Day 43
Reported as:
Number · Percentage of participants
Percentage of Participants With Seroresponse for Varicella Antibodies at Day 43
Percentage of participantsMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Percentage of Participants With Seroresponse for Varicella Antibodies at Day 43100.0 ± 97.85100.0 ± 97.88100.0 ± 97.79100.0 ± 97.84
SecondaryNumber of Participants With Solicited Administration Site Adverse Events (AEs) During the 4-day Period After Vaccine Dose Administration

The solicited administration site events after vaccination included pain, erythema/redness, and swelling. Analysis was performed on exposed set which included all participants who received a study intervention. Only those participants with solicited AEs were included in this analysis.

Time frame:
Day 1 to Day 4
Reported as:
Count of participants · Participants
Number of Participants With Solicited Administration Site Adverse Events (AEs) During the 4-day Period After Vaccine Dose Administration
ParticipantsMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Injection site pain76586476
Redness at injection site41342642
Swelling at injection site24211420
SecondaryNumber of Participants With Solicited Systemic AEs During the 4-day Period After Vaccine Dose Administration

The solicited systemic events after vaccination included drowsiness and loss of appetite. Analysis was performed on exposed set. Only those participants with solicited AEs were included in this analysis.

Time frame:
Day 1 to Day 4
Reported as:
Count of participants · Participants
Number of Participants With Solicited Systemic AEs During the 4-day Period After Vaccine Dose Administration
ParticipantsMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Any drowsiness27183231
Any loss of appetite20142226
SecondaryNumber of Participants With Solicited Systemic AEs During the 43-day Period After Vaccine Dose Administration

The solicited systemic events after vaccination included fever, measles/rubella-like rash, varicella- like rash and other rash (not measles/rubella-like rash or varicella-like rash). Fever was defined as temperature greater than or equal to 38.0 degrees Celsius (100.4 degrees Fahrenheit) by any route (the preferred location for measuring temperature is the axilla). Analysis was performed on exposed set. Only those participants with solicited AEs were included in this analysis.

Time frame:
Day 1 to Day 43
Reported as:
Count of participants · Participants
Number of Participants With Solicited Systemic AEs During the 43-day Period After Vaccine Dose Administration
ParticipantsMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Fever27252527
Any measles/rubella-like rash138125
Any varicella-like rash (including injection site)5666
Any other rash16181914
SecondaryNumber of Participants With Unsolicited AEs During the 43-day Period After Vaccine Dose Administration

An AE was any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study vaccine, which does not necessarily have a causal relationship with study vaccine. An unsolicited AE was an AE that was either not included in the list of solicited events or was included in the list of solicited events but with an onset outside the specified period of follow- up for solicited events. Unsolicited AEs must have been communicated by participant/participant's caregiver(s) who had signed the informed consent. Unsolicited AEs included both serious adverse events (SAEs) and non-serious AEs. Analysis was performed on exposed set.

Time frame:
Day 1 to Day 43
Reported as:
Count of participants · Participants
Number of Participants With Unsolicited AEs During the 43-day Period After Vaccine Dose Administration
ParticipantsMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Number of Participants With Unsolicited AEs During the 43-day Period After Vaccine Dose Administration44374853
SecondaryNumber of Participants With SAEs After Vaccine Dose Administration

An SAE was defined as any untoward medical occurrence that, at any dose, resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, resulted in congenital anomaly or other significant medical events. Analysis was performed on exposed set.

Time frame:
Throughout the study period (Day 1 to Day 181)
Reported as:
Count of participants · Participants
Number of Participants With SAEs After Vaccine Dose Administration
ParticipantsMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Number of Participants With SAEs After Vaccine Dose Administration1111

Adverse events

Collected over Solicited administration site and systemic events (drowsiness, loss of appetite): Day 1 to 4; solicited systemic events (fever, measles/rubella like rash, varicella-like rash and other rash); and unsolicited AEs: Day 1 to 43; SAEs: Day 1 to 181. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
MMRV(H)NS Vaccine1/198 (0.5%)1/198 (0.5%)127/198 (64.1%)
MM(H)RVNS Vaccine0/200 (0%)1/200 (0.5%)114/200 (57%)
(MMRV)(L)NS Vaccine0/203 (0%)1/203 (0.5%)126/203 (62.1%)
MMRV_Lot 1 and Lot 2 Pooled Group0/195 (0%)1/195 (0.5%)132/195 (67.7%)
Most frequent serious events
Most frequent serious events
EventMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
GastroenteritisInfections and infestations0/1980/2000/2031/195
HomicideSocial circumstances1/1980/2000/2030/195
PneumoniaInfections and infestations0/1981/2001/2030/195
Most frequent other events
Showing 10 of 110
Most frequent other events
EventMMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled Group
Administration site painGeneral disorders76/19858/20064/20376/195
Administration site erythemaGeneral disorders41/19834/20026/20342/195
SomnolenceNervous system disorders27/19818/20032/20332/195
PyrexiaGeneral disorders27/19825/20025/20327/195
Decreased appetiteMetabolism and nutrition disorders20/19814/20022/20326/195
Rashes, eruptions and exanthems NECSkin and subcutaneous tissue disorders24/19823/20027/20317/195
Administration site swellingGeneral disorders24/19821/20014/20320/195
Upper respiratory tract infectionInfections and infestations9/1987/2007/20310/195
NasopharyngitisInfections and infestations2/1982/2005/2035/195
CoughRespiratory, thoracic and mediastinal disorders3/1982/2001/2035/195

Baseline characteristics

Age, Continuous
Age, Continuous(years)MMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled GroupTotal
Mean4.2 ± 0.44.2 ± 0.54.2 ± 0.54.2 ± 0.54.2 ± 0.5
Sex: Female, Male
Sex: Female, Male(Participants)MMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled GroupTotal
Female738510599362
Male1251159896434
Race (NIH/OMB)
Race (NIH/OMB)(Participants)MMRV(H)NS VaccineMM(H)RVNS Vaccine(MMRV)(L)NS VaccineMMRV_Lot 1 and Lot 2 Pooled GroupTotal
American Indian or Alaska Native00000
Asian34333333133
Native Hawaiian or Other Pacific Islander00000
Black or African American25363337131
White123113115109460
More than one race1517191566
Unknown or Not Reported11316
08

Study locations

47 sites
  • GSK Investigational Site
    Birmingham, Alabama 35235, United States
  • GSK Investigational Site
    Jonesboro, Arkansas 72401, United States
  • GSK Investigational Site
    Bellflower, California 90706, United States
  • GSK Investigational Site
    Huntington Park, California 90255, United States
  • GSK Investigational Site
    Oakland, California 94611, United States
  • GSK Investigational Site
    Roseville, California 95661, United States
  • GSK Investigational Site
    Sacramento, California 95815, United States
  • GSK Investigational Site
    Sacramento, California 95823, United States
  • GSK Investigational Site
    San Jose, California 95119, United States
  • GSK Investigational Site
    Santa Clara, California 95051, United States
  • GSK Investigational Site
    West Covina, California 91790, United States
  • GSK Investigational Site
    Miami Lakes, Florida 33014, United States
  • GSK Investigational Site
    Tampa, Florida 33613, United States
  • GSK Investigational Site
    Ammon, Idaho 83406, United States
  • GSK Investigational Site
    Idaho Falls, Idaho 83404, United States
  • GSK Investigational Site
    Louisville, Kentucky 40291, United States
  • GSK Investigational Site
    Lafayette, Louisiana 70508, United States
  • GSK Investigational Site
    Boston, Massachusetts 02118, United States
  • GSK Investigational Site
    Bingham Farms, Michigan 48025, United States
  • GSK Investigational Site
    Detroit, Michigan 48201, United States
  • GSK Investigational Site
    Lincoln, Nebraska 68505, United States
  • GSK Investigational Site
    Lincoln, Nebraska 68522, United States
  • GSK Investigational Site
    Omaha, Nebraska 68114, United States
  • GSK Investigational Site
    Syracuse, New York 13210, United States
  • GSK Investigational Site
    Cleveland, Ohio 44121, United States
  • GSK Investigational Site
    Dayton, Ohio 45414, United States
  • GSK Investigational Site
    Simpsonville, South Carolina 29681, United States
  • GSK Investigational Site
    Tullahoma, Tennessee 37388, United States
  • GSK Investigational Site
    Dickinson, Texas 77539, United States
  • GSK Investigational Site
    McAllen, Texas 78504, United States
  • GSK Investigational Site
    Richmond, Texas 77469, United States
  • GSK Investigational Site
    Layton, Utah 84041, United States
  • GSK Investigational Site
    Provo, Utah 84604, United States
  • GSK Investigational Site
    Roy, Utah 84067, United States
  • GSK Investigational Site
    South Jordan, Utah 84095, United States
  • GSK Investigational Site
    Barranquilla, 080020, Colombia
  • GSK Investigational Site
    Barranquilla, 760002, Colombia
  • GSK Investigational Site
    Bogota, 38007, Colombia
  • GSK Investigational Site
    Riga, LV1002, Latvia
  • GSK Investigational Site
    San Juan, 00907, Puerto Rico
  • GSK Investigational Site
    San Juan, 00918, Puerto Rico
  • GSK Investigational Site
    San Juan, 909, Puerto Rico
  • GSK Investigational Site
    Taichung, 40447, Taiwan
  • GSK Investigational Site
    Taichung, 407, Taiwan
  • GSK Investigational Site
    Taipei, 10002, Taiwan
  • GSK Investigational Site
    Taipei, 10449, Taiwan
  • GSK Investigational Site
    Taoyuan, 333, Taiwan
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — GSK will assess requests from qualified researchers for anonymized individual patient-level data and related study documents. Data sharing is subject to certain criteria, conditions, and exceptions. For further information, refer to https://www.gsk-studyregister.com/About_GSK_Patient_Level_Data_Sharing_Final_13July2023.pdf.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report

Time frame: IPD will be made available within 6 months of publishing the results of the primary endpoints, a key secondary endpoints and safety data of the study.

Access criteria: Access is provided after a research proposal is submitted and has received approval from the Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months but an extension can be granted, when justified, for up to another 12 months.

Data sharing details ↗ · www.gsk-studyregister.com

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Dec 2022 to primary completion in Jun 2024, 17 months.

Results were first posted in Jun 2025, 1 year after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 24, 2022
First posted
Nov 30, 2022
StartActual
Dec 14, 2022
Primary completionActual
Jun 7, 2024
CompletionActual
Oct 14, 2024
Results first posted
Jun 22, 2025
Last update
Jun 22, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 22, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05630846
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Nov 30, 2022
Start date
Dec 14, 2022
Primary completion
Jun 7, 2024
Completion
Oct 14, 2024
Results posted
Jun 22, 2025
Last update
Jun 22, 2025

Study contacts

GSK Clinical Trials
study director · GlaxoSmithKline

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.

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