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Study of Two Formulations of GSK Biologicals' Varicella Vaccine

Study of Two Formulations of GSK Biologicals' Varicella Vaccine Given as a 2-dose Course in the Second Year of Life

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00568334
Enrollment
244
Registered
2007-12-06
Start date
2007-11-01
Completion date
2008-04-29
Last updated
2018-06-08

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

Conditions

Varicella

Keywords

chickenpox, varicella, two-dose schedule, second year of life

Brief summary

The aim of this study is to evaluate a modified formulation of GSK Biologicals' live attenuated varicella vaccine. In vivo pre-clinical data show this change has no negative impact on vaccine safety. This present study is undertaken to rule out any negative impact on the immunogenicity and safety of GSK Biologicals' live attenuated varicella virus vaccine.

Interventions

BIOLOGICALVarilrix (inactivated varicella vaccine)

subcutaneously injection

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

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

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 at the time of the first vaccination. * Written informed consent obtained from the parent or guardian of the subject. * Healthy subjects 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 of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose. * Planned administration/ administration of a vaccine not foreseen by the study protocol within 30 days prior to the first study vaccine dose until 42 days after second study vaccine dose with the exception of oral polio vaccine (OPV) which can be given at any time and routine inactivated vaccines which can be administered up to eight days before each study vaccine dose. * Previous vaccination against varicella. * Known history of clinical varicella. * Known exposure to varicella within 30 days prior to study start. * Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination. * 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. * Acute disease at the time of enrolment. All vaccines can be administered to persons with a minor illness. * Axillary temperature ≥ 37.5°C / Rectal temperature ≥ 38°C. * 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
Antibody Titers Against Varicella Zoster Virus (VZV)At 43-57 days after the first vaccine dose (Week 6)Antibody titers have been assessed by immunofluorescence assay (IFA) and presented as geometric mean titers (GMTs), for initially seronegative subjects \[with anti-VZV titer below (\<) 1:4\].
Antibody Concentrations Against Varicella Zoster Virus (VZV)At 43-57 days after the first vaccine dose (Week 6)Antibody concentrations have been assessed by enzyme-linked immunosorbent assay (ELISA), presented as geometric mean concentrations (GMCs) and expressed in milli-international units per milliliter (mIU/mL), for initially seronegative subjects \[with anti-VZV concentration below (\<) 25 mIU/mL\].

Secondary

MeasureTime frameDescription
Antibody Titers Against Varicella Zoster Virus (VZV)At 86-114 days after the second vaccine dose (Week 12)Antibody titers have been assessed by immunofluorescence assay (IFA) and presented as geometric mean titers (GMTs), for initially seronegative subjects \[with anti-VZV titer below (\<) 1:4\].
Antibody Concentrations Against Varicella Zoster Virus (VZV)At 86-114 days after the second vaccine dose (Week 12)Antibody concentrations have been assessed by enzyme-linked immunosorbent assay (ELISA), presented as geometric mean concentrations (GMCs) and expressed in milli-international units per milliliter (mIU/mL), for initially seronegative subjects \[with anti-VZV concentration below (\<) 25 mIU/mL\].
Number of Subjects With Any and Grade 3 Solicited Local SymptomsDuring the 4-day (Days 0-3) post-vaccination period following each doseAssessed solicited local symptoms were pain, redness and swelling. Any = incidence of a particular 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 Seroconverted Subjects for Varicella AntibodiesAt 43-57 days post-Dose 1 (Week 6) and 86-114 days post-Dose 2 (Week 12)Seroconversion/seroresponse (considering the IFA data) was defined as the appearance of anti-VZV antibodies \[i.e. titer/concentration greater than or equal to (≥) the assay cut-off value of 1:4\] in the sera of subjects who were seronegative before vaccination.
Number of Subjects With Any Unsolicited Adverse Event (AE)Within the 43-day (Days 0-42) post-vaccination period following each 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. Any solicited symptom with onset outside the specified period of follow-up for solicited symptoms was reported as an unsolicited adverse event.
Number of Subjects With Serious Adverse Events (SAEs)From Day 0 up to study end (Day 86-114)Serious adverse events (SAEs) assessed include medical occurrences that results in death, are life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity or is a congenital anomaly/birth defect in the offspring of a study subject.
Number of Subjects With Any, Grade 3 and Related Solicited General SymptomsDuring the 43-day (Days 0-42) post-vaccination period following each doseAssessed solicited general symptoms were fever \[defined as axillary fever ≥ 37.5 degrees Celsius (°C)\] and generalized rash. Any = occurrence of the symptom regardless of intensity grade or relationship to vaccination. Grade 3 fever = temperature above (\>) 39.0°C after vaccination. Grade 3 rash = more than (\>) 150 lesions. Related = considered by the investigator to be causally related to the study vaccination.
Number of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAt 43-57 days post-Dose 1 (Week 6) and 86-114 days post-Dose 2 (Week 12)Anti-VZV antibody concentrations greater than or equal to (≥) the assay cut-off values of: 25 mIU/mL, 50 mIU/mL and 75 mIU/mL have been assesssed by ELISA, in the sera of subjects who were seronegative before vaccination.

Countries

Czechia, Hungary

Participant flow

Pre-assignment details

During the screening the following steps occurred: check for inclusion/exclusion criteria, contraindications/precautions, medical history of the subjects and signing informed consent forms.

Participants by arm

ArmCount
Varilrix HSA-Free Group
Healthy male or female children between, and including, 11 and 21 months of age, who received 2 doses of Varilrix™ vaccine produced without human serum albumin (HSA-Free), administered subcutaneously into the deltoid region of the left upper arm, at Day 0 and Day 43-57 (Week 6).
122
Varilrix Group
Healthy male or female children between, and including, 11 and 21 months of age, who received 2 doses of Varilrix™ vaccine, administered subcutaneously into the deltoid region of the left upper arm, at Day 0 and Day 43-57 (Week 6).
122
Total244

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up10
Overall StudyWithdrawal by Subject01

Baseline characteristics

CharacteristicVarilrix HSA-Free GroupVarilrix GroupTotal
Age, Continuous15.6 Months
STANDARD_DEVIATION 3.34
14.8 Months
STANDARD_DEVIATION 3.08
15.20 Months
STANDARD_DEVIATION 3.23
Race/Ethnicity, Customized
White-Caucasian/European heritage
122 Participants122 Participants244 Participants
Sex: Female, Male
Female
59 Participants60 Participants119 Participants
Sex: Female, Male
Male
63 Participants62 Participants125 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1220 / 122
other
Total, other adverse events
103 / 122100 / 122
serious
Total, serious adverse events
2 / 1225 / 122

Outcome results

Primary

Antibody Concentrations Against Varicella Zoster Virus (VZV)

Antibody concentrations have been assessed by enzyme-linked immunosorbent assay (ELISA), presented as geometric mean concentrations (GMCs) and expressed in milli-international units per milliliter (mIU/mL), for initially seronegative subjects \[with anti-VZV concentration below (\<) 25 mIU/mL\].

Time frame: At 43-57 days after the first vaccine dose (Week 6)

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all eligible subjects who were seronegative for varicella antibodies at baseline and for whom pre-vaccination and post-vaccination serology results were available.

ArmMeasureValue (GEOMETRIC_MEAN)
Varilrix HSA-Free GroupAntibody Concentrations Against Varicella Zoster Virus (VZV)123.5 mIU/mL
Varilrix GroupAntibody Concentrations Against Varicella Zoster Virus (VZV)110.7 mIU/mL
Comparison: Non-inferiority of Varilrix™ HSA-Free vaccine as compared to Varilrix™ vaccine in terms of geometric mean concentrations (GMCs) of varicella zoster virus (VZV) antibodies 43-57 days after the first vaccine dose.95% CI: [0.93, 1.33]ANOVA
Primary

Antibody Titers Against Varicella Zoster Virus (VZV)

Antibody titers have been assessed by immunofluorescence assay (IFA) and presented as geometric mean titers (GMTs), for initially seronegative subjects \[with anti-VZV titer below (\<) 1:4\].

Time frame: At 43-57 days after the first vaccine dose (Week 6)

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all eligible subjects who were seronegative for varicella antibodies at baseline and for whom pre-vaccination and post-vaccination serology results were available.

ArmMeasureValue (GEOMETRIC_MEAN)
Varilrix HSA-Free GroupAntibody Titers Against Varicella Zoster Virus (VZV)172.6 Titers
Varilrix GroupAntibody Titers Against Varicella Zoster Virus (VZV)154.3 Titers
Comparison: Non-inferiority of Varilrix™ HSA-Free vaccine as compared to Varilrix™ vaccine in terms of geometric mean titers (GMTs) of varicella zoster virus (VZV) antibodies 43-57 days after the first vaccine dose.95% CI: [0.86, 1.46]ANOVA
Secondary

Antibody Concentrations Against Varicella Zoster Virus (VZV)

Antibody concentrations have been assessed by enzyme-linked immunosorbent assay (ELISA), presented as geometric mean concentrations (GMCs) and expressed in milli-international units per milliliter (mIU/mL), for initially seronegative subjects \[with anti-VZV concentration below (\<) 25 mIU/mL\].

Time frame: At 86-114 days after the second vaccine dose (Week 12)

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all eligible subjects who were seronegative for varicella antibodies at baseline and for whom pre-vaccination and post-vaccination serology results were available.

ArmMeasureValue (GEOMETRIC_MEAN)
Varilrix HSA-Free GroupAntibody Concentrations Against Varicella Zoster Virus (VZV)1013.6 mIU/mL
Varilrix GroupAntibody Concentrations Against Varicella Zoster Virus (VZV)999.2 mIU/mL
Secondary

Antibody Titers Against Varicella Zoster Virus (VZV)

Antibody titers have been assessed by immunofluorescence assay (IFA) and presented as geometric mean titers (GMTs), for initially seronegative subjects \[with anti-VZV titer below (\<) 1:4\].

Time frame: At 86-114 days after the second vaccine dose (Week 12)

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all eligible subjects who were seronegative for varicella antibodies at baseline and for whom pre-vaccination and post-vaccination serology results were available.

ArmMeasureValue (GEOMETRIC_MEAN)
Varilrix HSA-Free GroupAntibody Titers Against Varicella Zoster Virus (VZV)1452.5 Titers
Varilrix GroupAntibody Titers Against Varicella Zoster Virus (VZV)1395.4 Titers
Secondary

Number of Seroconverted Subjects for Varicella Antibodies

Seroconversion/seroresponse (considering the IFA data) was defined as the appearance of anti-VZV antibodies \[i.e. titer/concentration greater than or equal to (≥) the assay cut-off value of 1:4\] in the sera of subjects who were seronegative before vaccination.

Time frame: At 43-57 days post-Dose 1 (Week 6) and 86-114 days post-Dose 2 (Week 12)

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all eligible subjects who were seronegative for varicella antibodies at baseline and for whom pre-vaccination and post-vaccination serology results were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Varilrix HSA-Free GroupNumber of Seroconverted Subjects for Varicella AntibodiesAnti-VZV, Week 6114 Participants
Varilrix HSA-Free GroupNumber of Seroconverted Subjects for Varicella AntibodiesAnti-VZV, Week 12115 Participants
Varilrix GroupNumber of Seroconverted Subjects for Varicella AntibodiesAnti-VZV, Week 6114 Participants
Varilrix GroupNumber of Seroconverted Subjects for Varicella AntibodiesAnti-VZV, Week 12112 Participants
Secondary

Number of Subjects With Anti-VZV Antibody Concentrations Above Cut-off Values

Anti-VZV antibody concentrations greater than or equal to (≥) the assay cut-off values of: 25 mIU/mL, 50 mIU/mL and 75 mIU/mL have been assesssed by ELISA, in the sera of subjects who were seronegative before vaccination.

Time frame: At 43-57 days post-Dose 1 (Week 6) and 86-114 days post-Dose 2 (Week 12)

Population: The analysis was performed on the According-to-Protocol (ATP) cohort for immunogenicity, which included all eligible subjects who were seronegative for varicella antibodies at baseline and for whom pre-vaccination and post-vaccination serology results were available.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Varilrix HSA-Free GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 50 mIU/mL, Week 12116 Participants
Varilrix HSA-Free GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 25 mIU/mL, Week 12116 Participants
Varilrix HSA-Free GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 75 mIU/mL, Week 689 Participants
Varilrix HSA-Free GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 50 mIU/mL, Week 6105 Participants
Varilrix HSA-Free GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 75 mIU/mL, Week 12116 Participants
Varilrix HSA-Free GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 25 mIU/mL, Week 6114 Participants
Varilrix GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 75 mIU/mL, Week 12114 Participants
Varilrix GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 25 mIU/mL, Week 12114 Participants
Varilrix GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 50 mIU/mL, Week 6103 Participants
Varilrix GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 50 mIU/mL, Week 12114 Participants
Varilrix GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 75 mIU/mL, Week 689 Participants
Varilrix GroupNumber of Subjects With Anti-VZV Antibody Concentrations Above Cut-off ValuesAnti-VZV ≥ 25 mIU/mL, Week 6113 Participants
Secondary

Number of Subjects With Any and Grade 3 Solicited Local Symptoms

Assessed solicited local symptoms were pain, redness and swelling. Any = incidence of a particular 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: During the 4-day (Days 0-3) post-vaccination period following each dose

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects who had the symptoms sheet filled in.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Pain, Dose 113 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Pain, Dose 10 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Redness, Dose 133 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Redness, Dose 10 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Swelling, Dose 15 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Swelling, Dose 10 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Pain, Dose 223 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Pain, Dose 20 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Redness, Dose 244 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Redness, Dose 26 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Swelling, Dose 218 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Swelling, Dose 22 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Swelling, Dose 214 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Pain, Dose 115 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Pain, Dose 218 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Pain, Dose 10 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Redness, Dose 23 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Redness, Dose 134 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Pain, Dose 20 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Redness, Dose 10 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Swelling, Dose 22 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Swelling, Dose 17 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsAny Redness, Dose 246 Participants
Varilrix GroupNumber of Subjects With Any and Grade 3 Solicited Local SymptomsGrade 3 Swelling, Dose 10 Participants
Secondary

Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms

Assessed solicited general symptoms were fever \[defined as axillary fever ≥ 37.5 degrees Celsius (°C)\] and generalized rash. Any = occurrence of the symptom regardless of intensity grade or relationship to vaccination. Grade 3 fever = temperature above (\>) 39.0°C after vaccination. Grade 3 rash = more than (\>) 150 lesions. Related = considered by the investigator to be causally related to the study vaccination.

Time frame: During the 43-day (Days 0-42) post-vaccination period following each dose

Population: The analysis was performed on the Total Vaccinated Cohort, which included all vaccinated subjects who had the symptoms sheet filled in.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsAny Temperature, Dose 164 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsGrade 3 Temperature, Dose 113 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsRelated Temperature, Dose 12 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsAny Rash, Dose 11 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsGrade 3 Rash, Dose 154 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsRelated Rash, Dose 16 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsAny Temperature, Dose 23 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsGrade 3 Temperature, Dose 21 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsRelated Temperature, Dose 231 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsAny Rash, Dose 20 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsGrade 3 Rash, Dose 231 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsRelated Rash, Dose 21 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsGrade 3 Rash, Dose 223 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsAny Temperature, Dose 152 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsAny Temperature, Dose 23 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsGrade 3 Temperature, Dose 111 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsAny Rash, Dose 20 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsRelated Temperature, Dose 12 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsGrade 3 Temperature, Dose 20 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsAny Rash, Dose 10 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsRelated Rash, Dose 20 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsGrade 3 Rash, Dose 153 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsRelated Temperature, Dose 218 Participants
Varilrix GroupNumber of Subjects With Any, Grade 3 and Related Solicited General SymptomsRelated Rash, Dose 112 Participants
Secondary

Number of Subjects With Any Unsolicited Adverse Event (AE)

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. Any solicited symptom with onset outside the specified period of follow-up for solicited symptoms was reported as an unsolicited adverse event.

Time frame: Within the 43-day (Days 0-42) post-vaccination period following each dose

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

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Varilrix HSA-Free GroupNumber of Subjects With Any Unsolicited Adverse Event (AE)Any AE(s), Dose 156 Participants
Varilrix HSA-Free GroupNumber of Subjects With Any Unsolicited Adverse Event (AE)Any AE(s), Dose 235 Participants
Varilrix GroupNumber of Subjects With Any Unsolicited Adverse Event (AE)Any AE(s), Dose 145 Participants
Varilrix GroupNumber of Subjects With Any Unsolicited Adverse Event (AE)Any AE(s), Dose 242 Participants
Secondary

Number of Subjects With Serious Adverse Events (SAEs)

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

Time frame: From Day 0 up to study end (Day 86-114)

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Varilrix HSA-Free GroupNumber of Subjects With Serious Adverse Events (SAEs)2 Participants
Varilrix GroupNumber of Subjects With Serious Adverse Events (SAEs)5 Participants

Source: ClinicalTrials.gov · Data processed: Mar 14, 2026