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A Study of ProQuad in Healthy 4 to 6 Year Old Children (V221-014)

Administration of Frozen Measles, Mumps, Rubella, and Varicella (MMRV) Vaccine to Healthy Children at 4 to 6 Years of Age

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00985166
Enrollment
801
Registered
2009-09-28
Start date
2000-08-31
Completion date
2003-05-31
Last updated
2015-07-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Measles, Mumps, Rubella, Varicella

Brief summary

The study was conducted to determine if ProQuad may be used in place of the second dose of M-M-R II routinely given to children 4 to 6 years old who were previously immunized with M-M-R II and Varivax.

Interventions

BIOLOGICALProQuad (Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live)

A Single 0.5 mL subcutaneous injection at Day 1

A Single 0.5 mL subcutaneous injection at Day 1

A Single 0.5 mL subcutaneous injection at Day 1

BIOLOGICALComparator: Placebo

A Single 0.5 mL subcutaneous placebo injection at Day 1

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
4 Years to 6 Years
Healthy volunteers
Yes

Inclusion criteria

* In good health * Received primary dose of M-M-R II at less than or equal to 12 months of age * Received primary dose of Varivax at less than or equal to 12 months of age * Negative history of varicella, zoster, measles, mumps, and rubella

Exclusion criteria

* history of receiving more than once dose of M-M-R II or Varivax * Any immune impairment or deficiency * Exposure to measles, mumps, rubella, varicella, or zoster in the 4 weeks prior to vaccination * Vaccination with an inactive vaccine with in the past 14 days * Vaccination with a live vaccine within the past 30 days * Receipt of immune globulin, or blood product in the past 5 months

Design outcomes

Primary

MeasureTime frameDescription
Antibody Response to Varicella for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer6 weeks PostvaccinationPostvaccination observed Geometric Mean Titer of antibody to Varicella
Antibody Response to Measles for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer6 weeks PostvaccinationPostvaccination observed Geometric Mean Titer of antibody to Measles
Antibody Response to Mumps for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer6 weeks PostvaccinationPostvaccination observed Geometric Mean Titer of antibody to Mumps
Antibody Response to Rubella for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer6 weeks PostvaccinationPostvaccination observed Geometric Mean Titer of antibody to Rubella

Participant flow

Recruitment details

17 clinical sites in the United States Date of first participant visit: 24-Aug-2000 Date of last participant visit: 06-May-2002

Pre-assignment details

Prior to entering study, all subjects received primary dose of M-M-R II™ and Varivax™ at less than or equal to 12 months of age.

Participants by arm

ArmCount
ProQuad™ + Placebo
ProQuad™ (measles, mumps, rubella, and varicella vaccine) + placebo administered concomitantly at separate injection sites on Day 1.
399
M-M-R™ II + Placebo
M-M-R™ II + placebo administered concomitantly at separate injection sites on Day 1.
205
M-M-R™ II + VARIVAX™
VARIVAX™ + M-M-R™ II administered concomitantly at separate injection sites on Day 1.
195
Total799

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up322
Overall StudyOther101
Overall StudyTest not done204
Overall StudyWithdrawal by Subject320

Baseline characteristics

CharacteristicProQuad™ + PlaceboM-M-R™ II + PlaceboM-M-R™ II + VARIVAX™Total
Age, Continuous4.3 years
STANDARD_DEVIATION 0.5
4.3 years
STANDARD_DEVIATION 0.5
4.3 years
STANDARD_DEVIATION 0.5
4.3 years
STANDARD_DEVIATION 0.5
Race/Ethnicity, Customized
African American
49 participants19 participants25 participants93 participants
Race/Ethnicity, Customized
Asian/Pacific
8 participants5 participants3 participants16 participants
Race/Ethnicity, Customized
Caucasian
313 participants162 participants153 participants628 participants
Race/Ethnicity, Customized
Hispanic
15 participants10 participants7 participants32 participants
Race/Ethnicity, Customized
Other
14 participants9 participants7 participants30 participants
Sex: Female, Male
Female
191 Participants105 Participants77 Participants373 Participants
Sex: Female, Male
Male
208 Participants100 Participants118 Participants426 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
292 / 397150 / 205140 / 193
serious
Total, serious adverse events
1 / 3970 / 2050 / 193

Outcome results

Primary

Antibody Response to Measles for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer

Postvaccination observed Geometric Mean Titer of antibody to Measles

Time frame: 6 weeks Postvaccination

Population: Per-protocol analysis set includes participants who had pre- and postvaccination blood samples within predefined day ranges, received M-M-R™ II + VARIVAX™ prior to entering the study, and followed protocol procedures.

ArmMeasureValue (GEOMETRIC_MEAN)
ProQuad™ + PlaceboAntibody Response to Measles for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer1985.9 mIU/mL
M-M-R™ II + VARIVAX™Antibody Response to Measles for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer2046.9 mIU/mL
M-M-R™ II + VARIVAX™Antibody Response to Measles for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer2084.3 mIU/mL
Primary

Antibody Response to Mumps for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer

Postvaccination observed Geometric Mean Titer of antibody to Mumps

Time frame: 6 weeks Postvaccination

Population: Per-protocol analysis set includes participants who had pre- and postvaccination blood samples within predefined day ranges, received M-M-R™ II + VARIVAX™ prior to entering the study, and followed protocol procedures.

ArmMeasureValue (GEOMETRIC_MEAN)
ProQuad™ + PlaceboAntibody Response to Mumps for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer206.0 ELISA AB units/mL
M-M-R™ II + VARIVAX™Antibody Response to Mumps for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer308.5 ELISA AB units/mL
M-M-R™ II + VARIVAX™Antibody Response to Mumps for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer295.9 ELISA AB units/mL
Primary

Antibody Response to Rubella for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer

Postvaccination observed Geometric Mean Titer of antibody to Rubella

Time frame: 6 weeks Postvaccination

Population: Per-protocol analysis set includes participants who had pre- and postvaccination blood samples within predefined day ranges, received M-M-R™ II + VARIVAX™ prior to entering the study, and followed protocol procedures.

ArmMeasureValue (GEOMETRIC_MEAN)
ProQuad™ + PlaceboAntibody Response to Rubella for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer217.3 IU/mL
M-M-R™ II + VARIVAX™Antibody Response to Rubella for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer174.0 IU/mL
M-M-R™ II + VARIVAX™Antibody Response to Rubella for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer154.1 IU/mL
Primary

Antibody Response to Varicella for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer

Postvaccination observed Geometric Mean Titer of antibody to Varicella

Time frame: 6 weeks Postvaccination

Population: Per-protocol analysis set includes participants who had pre- and postvaccination blood samples within predefined day ranges, received M-M-R™ II + VARIVAX™ prior to entering the study, and followed protocol procedures.

ArmMeasureValue (GEOMETRIC_MEAN)
ProQuad™ + PlaceboAntibody Response to Varicella for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer322.2 gpELISA units/mL
M-M-R™ II + VARIVAX™Antibody Response to Varicella for Subjects Who Had Previously Received M-M-R II + VARIVAX - Geometric Mean Titer209.3 gpELISA units/mL

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026