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Immunogenicity & Safety Study of GSK Biologicals' 208136 Vaccine Formulated With New Measles and Rubella Working Seeds

Immunogenicity & Safety Study of GSK Biologicals' 208136 Vaccine Formulated With New Measles and Rubella Working Seeds

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00892775
Enrollment
501
Registered
2009-05-05
Start date
2009-06-03
Completion date
2010-12-13
Last updated
2019-11-15

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

Conditions

Measles, Mumps, Rubella, Varicella

Keywords

Working seed virus, Rubella, Mumps, Varicella, Combined measles-mumps-rubella-varicella vaccine, Pediatric immunization, Measles

Brief summary

This study is undertaken to generate clinical data on GSK Biologicals' combined measles-mumps-rubella-varicella vaccine manufactured with measles and rubella obtained from newly established working seed viruses which are one passage further than the current working seed viruses. The measles-mumps-rubella-varicella vaccine manufactured with the current working seed viruses will serve as comparator. A seed lot system is a system according to which successive batches of a vaccine are derived from the same master seed virus. For routine production, a working seed lot is prepared from the master seed virus.

Interventions

BIOLOGICALPriorix-Tetra (combined measles-mumps-rubella-varicella vaccine)

Vaccine will be administered subcutaneously in the left upper arm (deltoid region)

BIOLOGICALGSK Biologicals' 208136, new formulation

Vaccine will be administered subcutaneously in the left upper arm (deltoid region)

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
11 Months to 21 Months
Healthy volunteers
Yes

Inclusion criteria

* Subjects who the investigator believes that their parents/guardians can and will comply with the requirements of the protocol (e.g. completion of the diary cards, return for follow-up visits) should be enrolled in the study. * A male or female between, and including, 11 and 21 months of age (e.g. from age 11months until the day before age 22 months) at the time of the first vaccination. * Written informed consent obtained from the parent or guardian of the subject after they have been advised on the risks and benefits of the study in a language they clearly understand, and before performance of any study procedure. * Free of obvious healthy problems as established by medical history and clinical examination before entering into the study.

Exclusion criteria

* Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period. * Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose. * Administration of immunoglobulins and/or any blood products during the six months before entering the study or planned administration during the study period. * Planned administration/ administration of a vaccine not foreseen by the study protocol within 30 days prior to until 42 days after each study vaccine dose with the exception of oral polio vaccine (OPV) which can be given at any time and routine inactivated vaccines such as pneumococcal, meningococcal or Haemophilus influenzae type b conjugate vaccines, inactivated influenza or diphtheria/tetanus containing vaccines which can be administered up to eight days before each study vaccine dose. * Previous vaccination against measles, mumps, rubella and/or varicella. * History of measles, mumps, rubella and/or varicella/zoster diseases. * Known exposure to measles, mumps, rubella and/or varicella within 30 days prior to study start. * Any confirmed or suspected immunosuppressive or immunodeficient condition, including human immunodeficiency virus (HIV) infection. * A family history of congenital or hereditary immunodeficiency. * History of allergic disease or reactions likely to be exacerbated by any component of the vaccine(s), including systemic hypersensitivity to neomycin. * Major congenital defects or serious chronic illness. * History of any neurologic disorders or seizures. * Acute disease at the time of enrolment. * Rectal temperature ≥38°C or axillary temperature \>=37.5°C at the time of vaccination. * Residence in the same household as a high risk person e.g.: * New-born infants (0-4 weeks of age) * Pregnant women who have a negative history of chickenpox * Persons with known immunodeficiency

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.At 42-56 days after the first dose of study vaccine (Week 6)Seroconversion was defined as the appearance of antibodies in the serum of subjects seronegative before vaccination. The cut-off values for seroconversion was 150 milli international units per milliliter (mIU/mL), 231 units per milliliter (U/mL), 4 international units per milliliter (IU/mL) and 1:4 dilution for measles, mumps, rubella and varicella, respectively.

Secondary

MeasureTime frameDescription
Antibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAt 42-56 days after the first and second dose of study vaccine(s).Antibody titers were summarized by geometric mean titers (GMTs) with their 95% confidence intervals.
Number of Subjects Reporting Any and Grade 3 Solicited Local SymptomsWithin 4 days after each vaccination (Days 0-3)Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = cried when limb was moved/ spontaneously painful. Grade 3 redness/ swelling = redness/ swelling spreading beyond 20 millimeters (mm) of injection site.
Number of Subjects Reporting Any and Grade 3 Solicited General SymptomsWithin 43 days (Days 0-42) after each vaccinationAssessed solicited general symptoms were meningism and parotid gland swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 meningism and parotid gland swelling = meningism/ parotid gland swelling which prevented normal everyday activities.
Number of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.At 42-56 days after the second dose of study vaccine (Week 18)Seroconversion was defined as the appearance of antibodies in the serum of subjects seronegative before vaccination. The cut-off values for seroconversion was 150 mIU/mL, 231 U/mL, 4 IU/mL and 1:4 dilution for measles, mumps, rubella and varicella, respectively.
Number of Subjects Reporting Any (Local or General), Grade 3 and Related RashesWithin 43 days (Days 0-42) after each vaccinationRash was defined as: 1) measles/ rubella rashes (macular or maculo-papular rashes): presence of macules, discolored small patches or spots of the skin, neither elevated nor depressed below the skin's surface; 2) varicella rash (maculo-papulo-vesicular): simultaneous presence of macules, papules and vesicles raised above the skin's surface; 3) other types of rash (heat rash, diaper rash etc.). Any rash = occurrence of rash regardless of intensity grade or relationship to vaccination Grade 3 rash ≥ 150 lesions and Related = rash assessed by the investigator as related to the vaccination.
Number of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Within 43 days (Days 0-42) after first vaccination doseAn unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Any was defined as an adverse event (AE) reported in addition to those solicited during the clinical study. Also any 'solicited' symptom with onset outside the specified period of follow-up for solicited symptoms was reported as an unsolicited adverse event. Grade 3 was defined as an event that prevented normal activity and Related was defined as an event assessed by the investigator as causally related to the study vaccination.
Number of Subjects With Serious Adverse Events (SAEs)From first study dose (Day 0) until study end (Week 18)Serious adverse events (SAEs) assessed included medical occurrences that resulted in death, were life threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/ incapacity or is a congenital anomaly/ birth defect in the offspring of a study subject.
Number of Subjects Reporting Any, Grade 3 and Related FeverWithin 43 days (Days 0-42) after each vaccinationAny fever was defined as fever greater than or equal to (≥) 38.0 Celsius degrees (°C) and grade 3 fever greater than (\>) 39.5°C after vaccination. Related fever was defined as fever assessed by the investigator as related to the vaccination.

Countries

Singapore, Taiwan

Participant flow

Pre-assignment details

Out of the 501 enrolled participants, 3 were not administered any vaccine and hence were not considered as having started the study.

Participants by arm

ArmCount
Priorix-Tetra New WS Group
Subjects received 2 doses of Priorix-Tetra vaccine formulated with new measles and rubella working seeds at Day 0 and Week 12.
332
Priorix-Tetra Current WS Group
Subjects received 2 doses of Priorix-Tetra vaccine manufactured with current working seed virus at Day 0 and Week 12.
166
Total498

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDisclaimer/ Withdrawal caused by H1N110
Overall StudyLost to Follow-up10
Overall StudyMigrated/ moved from study area10
Overall StudyProtocol Violation10
Overall StudySubject difficulties with blood drawing10
Overall StudyWithdrawal by Subject01

Baseline characteristics

CharacteristicPriorix-Tetra New WS GroupPriorix-Tetra Current WS GroupTotal
Age, Continuous13 Months
STANDARD_DEVIATION 1.94
12.9 Months
STANDARD_DEVIATION 1.7
12.97 Months
STANDARD_DEVIATION 1.86
Race/Ethnicity, Customized
Asian - East Asian heritage
165 Participants83 Participants248 Participants
Race/Ethnicity, Customized
Asian - South East Asian heritage
162 Participants81 Participants243 Participants
Race/Ethnicity, Customized
Unspecified
2 Participants1 Participants3 Participants
Race/Ethnicity, Customized
White - Caucasian / European heritage
3 Participants1 Participants4 Participants
Sex: Female, Male
Female
166 Participants84 Participants250 Participants
Sex: Female, Male
Male
166 Participants82 Participants248 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 3320 / 166
other
Total, other adverse events
246 / 332117 / 166
serious
Total, serious adverse events
27 / 33212 / 166

Outcome results

Primary

Number of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.

Seroconversion was defined as the appearance of antibodies in the serum of subjects seronegative before vaccination. The cut-off values for seroconversion was 150 milli international units per milliliter (mIU/mL), 231 units per milliliter (U/mL), 4 international units per milliliter (IU/mL) and 1:4 dilution for measles, mumps, rubella and varicella, respectively.

Time frame: At 42-56 days after the first dose of study vaccine (Week 6)

Population: The According-to-protocol (ATP) cohort for immunogenicity included all eligible subjects who were seronegative at baseline to at least one vaccine antigen, who had received vaccine according to their random assignment, who had not received a vaccine forbidden in the protocol and for whom pre/ post-vaccination serology results were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Priorix-Tetra New WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.Anti-measles ≥ 150 mIU/mL312 Participants
Priorix-Tetra New WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.Anti-mumps ≥ 231 U/ML279 Participants
Priorix-Tetra New WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.Anti-rubella ≥ 4 IU/mL313 Participants
Priorix-Tetra New WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.IgG varicella antibodies ≥ 1:4 dilution284 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.IgG varicella antibodies ≥ 1:4 dilution131 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.Anti-measles ≥ 150 mIU/mL157 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.Anti-rubella ≥ 4 IU/mL157 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies Greater Than or Equal to (≥) the Cut-off Value.Anti-mumps ≥ 231 U/ML142 Participants
95% CI: [-2.29, 1.76]
95% CI: [-6.14, 5.58]
95% CI: [-1.78, 2.08]
95% CI: [0.72, 10.34]
Secondary

Antibody Titers Against Measles, Mumps, Rubella and Varicella Viruses

Antibody titers were summarized by geometric mean titers (GMTs) with their 95% confidence intervals.

Time frame: At 42-56 days after the first and second dose of study vaccine(s).

Population: The ATP cohort for immunogenicity included all eligible subjects who were seronegative at baseline to at least one vaccine antigen, who had received the comparator vaccine according to their random assignment, who had not received a vaccine not specified/ forbidden in the protocol and for whom pre/ post-vaccination serology results were available.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Priorix-Tetra New WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Measles (mIU/mL); Dose 13291.2 Titres
Priorix-Tetra New WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Mumps (U/mL); Dose 1924.4 Titres
Priorix-Tetra New WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Rubella (IU/mL); Dose 171.7 Titres
Priorix-Tetra New WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Varicella (1/dil); Dose 1104.8 Titres
Priorix-Tetra New WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Measles (mIU/mL); Dose 24247.6 Titres
Priorix-Tetra New WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Mumps (U/mL); Dose 23379.5 Titres
Priorix-Tetra New WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Rubella (IU/mL); Dose 2125.7 Titres
Priorix-Tetra New WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Varicella (1/dil); Dose 26570.6 Titres
Priorix-Tetra Current WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Varicella (1/dil); Dose 25134.8 Titres
Priorix-Tetra Current WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Measles (mIU/mL); Dose 13460.1 Titres
Priorix-Tetra Current WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Measles (mIU/mL); Dose 24297.1 Titres
Priorix-Tetra Current WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Mumps (U/mL); Dose 1994.4 Titres
Priorix-Tetra Current WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Rubella (IU/mL); Dose 2115.2 Titres
Priorix-Tetra Current WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Rubella (IU/mL); Dose 166.6 Titres
Priorix-Tetra Current WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Mumps (U/mL); Dose 23216.2 Titres
Priorix-Tetra Current WS GroupAntibody Titers Against Measles, Mumps, Rubella and Varicella VirusesAnti-Varicella (1/dil); Dose 169.6 Titres
Secondary

Number of Subjects Reporting Any and Grade 3 Solicited General Symptoms

Assessed solicited general symptoms were meningism and parotid gland swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 meningism and parotid gland swelling = meningism/ parotid gland swelling which prevented normal everyday activities.

Time frame: Within 43 days (Days 0-42) after each vaccination

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects,with the symptom sheet filled-in.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsAny Meningism; Dose 12 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsGrade 3 Meningism; Dose 10 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsAny Parotid gland; Dose 10 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsGrade 3 Parotid gland; Dose 10 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsAny Meningism; Dose 22 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsGrade 3 Meningism; Dose 21 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsAny Parotid gland; Dose 20 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsGrade 3 Parotid gland; Dose 20 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsGrade 3 Parotid gland; Dose 20 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsAny Meningism; Dose 11 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsAny Meningism; Dose 20 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsGrade 3 Meningism; Dose 10 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsAny Parotid gland; Dose 20 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsAny Parotid gland; Dose 10 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsGrade 3 Meningism; Dose 20 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited General SymptomsGrade 3 Parotid gland; Dose 10 Participants
Secondary

Number of Subjects Reporting Any and Grade 3 Solicited Local Symptoms

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = cried when limb was moved/ spontaneously painful. Grade 3 redness/ swelling = redness/ swelling spreading beyond 20 millimeters (mm) of injection site.

Time frame: Within 4 days after each vaccination (Days 0-3)

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects, with the symptom sheet filled-in.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Pain; Dose 162 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Pain; Dose 10 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Redness; Dose 192 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Redness; Dose 12 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Swelling; Dose 122 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Swelling; Dose 10 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Pain; Dose 246 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Pain; Dose 20 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Redness; Dose 279 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Redness; Dose 24 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Swelling; Dose 237 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Swelling; Dose 21 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Swelling; Dose 225 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Pain; Dose 128 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Pain; Dose 224 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Pain; Dose 10 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Redness; Dose 25 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Redness; Dose 144 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Pain; Dose 20 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Redness; Dose 13 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Swelling; Dose 20 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Swelling; Dose 111 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsAny Redness; Dose 243 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any and Grade 3 Solicited Local SymptomsGrade 3 Swelling; Dose 10 Participants
Secondary

Number of Subjects Reporting Any, Grade 3 and Related Fever

Any fever was defined as fever greater than or equal to (≥) 38.0 Celsius degrees (°C) and grade 3 fever greater than (\>) 39.5°C after vaccination. Related fever was defined as fever assessed by the investigator as related to the vaccination.

Time frame: Within 43 days (Days 0-42) after each vaccination

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects, with the symptom sheet filled-in.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverGrade 3 temperature; Dose 154 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverAny temperature; Dose 2115 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverAny temperature; Dose 1231 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverGrade 3 temperature; Dose 231 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverRelated temperature; Dose 1160 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverRelated temperature; Dose 229 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverRelated temperature; Dose 170 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverAny temperature; Dose 1104 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverGrade 3 temperature; Dose 123 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverRelated temperature; Dose 228 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverAny temperature; Dose 262 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related FeverGrade 3 temperature; Dose 213 Participants
Secondary

Number of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)

An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Any was defined as an adverse event (AE) reported in addition to those solicited during the clinical study. Also any 'solicited' symptom with onset outside the specified period of follow-up for solicited symptoms was reported as an unsolicited adverse event. Grade 3 was defined as an event that prevented normal activity and Related was defined as an event assessed by the investigator as causally related to the study vaccination.

Time frame: Within 43 days (Days 0-42) after first vaccination dose

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Any AE(s)165 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Grade 3 AE(s)8 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Related AE(s)21 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Any AE(s)73 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Grade 3 AE(s)5 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Related AE(s)8 Participants
Secondary

Number of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)

An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Any was defined as an adverse event (AE) reported in addition to those solicited during the clinical study. Also any 'solicited' symptom with onset outside the specified period of follow-up for solicited symptoms was reported as an unsolicited adverse event. Grade 3 was defined as an event that prevented normal activity and Related was defined as an event assessed by the investigator as causally related to the study vaccination.

Time frame: Within 43 days (Days 86-128) after second vaccination dose

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Any AE(s)146 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Grade 3 AE(s)6 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Related AE(s)10 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Grade 3 AE(s)6 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Any AE(s)76 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any, Grade 3 and Related Unsolicited Adverse Event (AEs)Related AE(s)6 Participants
Secondary

Number of Subjects Reporting Any (Local or General), Grade 3 and Related Rashes

Rash was defined as: 1) measles/ rubella rashes (macular or maculo-papular rashes): presence of macules, discolored small patches or spots of the skin, neither elevated nor depressed below the skin's surface; 2) varicella rash (maculo-papulo-vesicular): simultaneous presence of macules, papules and vesicles raised above the skin's surface; 3) other types of rash (heat rash, diaper rash etc.). Any rash = occurrence of rash regardless of intensity grade or relationship to vaccination Grade 3 rash ≥ 150 lesions and Related = rash assessed by the investigator as related to the vaccination.

Time frame: Within 43 days (Days 0-42) after each vaccination

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects, with the symptom sheet filled-in.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesAny, rash type; Dose 188 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesGrade 3 rash type; Dose 19 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesRelated rash type; Dose 137 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesAny, rash type; Dose 240 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesGrade 3 rash type; Dose 26 Participants
Priorix-Tetra New WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesRelated rash type; Dose 212 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesGrade 3 rash type; Dose 21 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesAny, rash type; Dose 142 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesAny, rash type; Dose 217 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesGrade 3 rash type; Dose 16 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesRelated rash type; Dose 27 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Reporting Any (Local or General), Grade 3 and Related RashesRelated rash type; Dose 123 Participants
Secondary

Number of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.

Seroconversion was defined as the appearance of antibodies in the serum of subjects seronegative before vaccination. The cut-off values for seroconversion was 150 mIU/mL, 231 U/mL, 4 IU/mL and 1:4 dilution for measles, mumps, rubella and varicella, respectively.

Time frame: At 42-56 days after the second dose of study vaccine (Week 18)

Population: The ATP cohort for immunogenicity included all eligible subjects who were seronegative at baseline to at least one vaccine antigen, who had received the comparator vaccine according to their random assignment, who had not received a vaccine not specified/ forbidden in the protocol and for whom pre/ post-vaccination serology results were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Priorix-Tetra New WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.Anti-measles ≥ 150 mIU/mL308 Participants
Priorix-Tetra New WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.Anti-mumps ≥ 231 U/ML307 Participants
Priorix-Tetra New WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.Anti-rubella ≥ 4 IU/mL308 Participants
Priorix-Tetra New WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.IgG varicella antibodies ≥ 1:4 dilution286 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.IgG varicella antibodies ≥ 1:4 dilution138 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.Anti-measles ≥ 150 mIU/mL156 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.Anti-rubella ≥ 4 IU/mL156 Participants
Priorix-Tetra Current WS GroupNumber of Subjects Seroconverted for Measles, Mumps, Rubella and Varicella Antibodies ≥ the Cut-off Value.Anti-mumps ≥ 231 U/ML155 Participants
Secondary

Number of Subjects With Serious Adverse Events (SAEs)

Serious adverse events (SAEs) assessed included medical occurrences that resulted in death, were life threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/ incapacity or is a congenital anomaly/ birth defect in the offspring of a study subject.

Time frame: From first study dose (Day 0) until study end (Week 18)

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Priorix-Tetra New WS GroupNumber of Subjects With Serious Adverse Events (SAEs)27 Participants
Priorix-Tetra Current WS GroupNumber of Subjects With Serious Adverse Events (SAEs)12 Participants

Source: ClinicalTrials.gov · Data processed: Mar 24, 2026