Trial Outcomes & Findings for Evaluation of Immunogenicity and Safety of VARIVAX® Passage Extension 34 (PE34) Process in Children (V210-A03) (NCT NCT03239873)

NCT ID: NCT03239873

Last Updated: 2021-01-27

Results Overview

The varicella zoster virus (VZV) antibody response rate was defined as the percentage of participants with VZV antibody titer ≥5 glycoprotein enzyme-linked immunosorbent assay (gpELISA) units/mL among participants who were seronegative to VZV (titers \<1.25 gpELISA units/mL) at baseline.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

600 participants

Primary outcome timeframe

6 weeks (43 days) after vaccination 1

Results posted on

2021-01-27

Participant Flow

Participant milestones

Participant milestones
Measure
VARIVAX PE34 + M-M-R II
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Overall Study
STARTED
300
300
Overall Study
Vaccination 1
299
300
Overall Study
Vaccination 2
276
282
Overall Study
COMPLETED
268
273
Overall Study
NOT COMPLETED
32
27

Reasons for withdrawal

Reasons for withdrawal
Measure
VARIVAX PE34 + M-M-R II
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Overall Study
Lost to Follow-up
15
16
Overall Study
Physician Decision
1
0
Overall Study
Withdrawal by Parent/Guardian
12
11
Overall Study
Withdrawal by Subject
2
0
Overall Study
Contraindication to study medication
1
0
Overall Study
Protocol Violation
1
0

Baseline Characteristics

Evaluation of Immunogenicity and Safety of VARIVAX® Passage Extension 34 (PE34) Process in Children (V210-A03)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
VARIVAX PE34 + M-M-R II
n=300 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Total
n=600 Participants
Total of all reporting groups
Age, Continuous
13.0 Months
STANDARD_DEVIATION 1.4 • n=5 Participants
13.2 Months
STANDARD_DEVIATION 1.7 • n=7 Participants
13.1 Months
STANDARD_DEVIATION 1.6 • n=5 Participants
Sex: Female, Male
Female
153 Participants
n=5 Participants
127 Participants
n=7 Participants
280 Participants
n=5 Participants
Sex: Female, Male
Male
147 Participants
n=5 Participants
173 Participants
n=7 Participants
320 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
46 Participants
n=5 Participants
60 Participants
n=7 Participants
106 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
254 Participants
n=5 Participants
237 Participants
n=7 Participants
491 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Asian
4 Participants
n=5 Participants
6 Participants
n=7 Participants
10 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
35 Participants
n=5 Participants
23 Participants
n=7 Participants
58 Participants
n=5 Participants
Race (NIH/OMB)
White
237 Participants
n=5 Participants
239 Participants
n=7 Participants
476 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
23 Participants
n=5 Participants
31 Participants
n=7 Participants
54 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 6 weeks (43 days) after vaccination 1

Population: The analysis population included the number of participants with seronegative antibody titer (\<1.25 gpELISA units/mL) at baseline and postvaccination serology.

The varicella zoster virus (VZV) antibody response rate was defined as the percentage of participants with VZV antibody titer ≥5 glycoprotein enzyme-linked immunosorbent assay (gpELISA) units/mL among participants who were seronegative to VZV (titers \<1.25 gpELISA units/mL) at baseline.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=245 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=239 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With Varicella Zoster Virus Antibody Levels ≥5 Glycoprotein Enzyme-linked Immunosorbent Assay (gpELISA) Units/mL
98.4 Percentage of Participants
Interval 95.9 to 99.6
98.3 Percentage of Participants
Interval 95.8 to 99.5

PRIMARY outcome

Timeframe: 6 weeks (43 days) after vaccination 1

Population: The analysis population included the number of participants with seronegative antibody titer (\<1.25 gpELISA units/mL) at baseline and postvaccination serology.

The geometric mean titer (GMT) of VZV antibodies after vaccination 1 was assessed. Antibody titers were measured with gpELISA.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=245 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=239 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Geometric Mean Titer of VZV Antibodies
18.5 gpELISA units/mL
Interval 17.1 to 20.1
19.0 gpELISA units/mL
Interval 17.6 to 20.5

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 1; Up to 42 days after vaccination 2

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with temperature data at the time of assessment.

The percentage of participants with fever ≥102.2 °F oral equivalent for Day 1 through Day 42 after vaccination 1 and Day 1 through Day 42 after vaccination 2 was reported.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With Fever (≥102.2 °F Oral Equivalent)
Up to 42 days after Vaccination 1
11.8 Percentage of Participants
9.8 Percentage of Participants
Percentage of Participants With Fever (≥102.2 °F Oral Equivalent)
Up to 42 days after Vaccination 2
8.9 Percentage of Participants
6.1 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 1

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants with measles-like, rubella-like, varicella-like, zoster-like rash, and mumps-like symptoms after vaccination 1 was assessed. A specific adverse event was reported only if its incidence was \>0% in one or more vaccination groups after rounding.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With Systemic Measles-like, Rubella-like, Varicella-like, Zoster-like Rash, and Mumps-like Symptoms After Vaccination 1 (Incidence > 0%)
Measles-like rash
0.3 Percentage of Participants
1.7 Percentage of Participants
Percentage of Participants With Systemic Measles-like, Rubella-like, Varicella-like, Zoster-like Rash, and Mumps-like Symptoms After Vaccination 1 (Incidence > 0%)
Rubella-like rash
0.3 Percentage of Participants
0.0 Percentage of Participants
Percentage of Participants With Systemic Measles-like, Rubella-like, Varicella-like, Zoster-like Rash, and Mumps-like Symptoms After Vaccination 1 (Incidence > 0%)
Varicella-like rash
2.7 Percentage of Participants
1.3 Percentage of Participants
Percentage of Participants With Systemic Measles-like, Rubella-like, Varicella-like, Zoster-like Rash, and Mumps-like Symptoms After Vaccination 1 (Incidence > 0%)
Zoster-like rash
0.0 Percentage of Participants
0.3 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 2

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants with measles-like, rubella-like, varicella-like, zoster-like rash, and mumps-like symptoms after vaccination 2 was assessed. A specific adverse event was reported only if its incidence was \>0% in one or more vaccination groups after rounding.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=276 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=282 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With Systemic Measles-like, Rubella-like, Varicella-like, Zoster-like Rash, and Mumps-like Symptoms After Vaccination 2 (Incidence > 0%)
Measles-like rash
1.4 Percentage of Participants
0.4 Percentage of Participants
Percentage of Participants With Systemic Measles-like, Rubella-like, Varicella-like, Zoster-like Rash, and Mumps-like Symptoms After Vaccination 2 (Incidence > 0%)
Varicella-like rash
0.4 Percentage of Participants
0.7 Percentage of Participants
Percentage of Participants With Systemic Measles-like, Rubella-like, Varicella-like, Zoster-like Rash, and Mumps-like Symptoms After Vaccination 2 (Incidence > 0%)
Zoster-like rash
0.4 Percentage of Participants
0.0 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 5 days after vaccination 1

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants with solicited (on a Vaccine Report Card) injection-site erythema, injection-site swelling, or injection-site pain/tenderness was assessed.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With Solicited Injection-site Erythema, Injection-site Swelling, or Injection-site Pain/Tenderness After Vaccination 1
Injection site erythema
9.7 Percentage of Participants
10.7 Percentage of Participants
Percentage of Participants With Solicited Injection-site Erythema, Injection-site Swelling, or Injection-site Pain/Tenderness After Vaccination 1
Injection site pain
13.4 Percentage of Participants
12.7 Percentage of Participants
Percentage of Participants With Solicited Injection-site Erythema, Injection-site Swelling, or Injection-site Pain/Tenderness After Vaccination 1
Injection site swelling
3.0 Percentage of Participants
5.7 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 5 days after vaccination 2

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants with solicited (Vaccine Report Card) injection-site erythema, injection-site swelling, and injection-site pain/tenderness was assessed.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=276 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=282 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With Solicited Injection-site Erythema, Injection-site Swelling, and Injection-site Pain/Tenderness After Vaccination 2
Injection site erythema
19.6 Percentage of Participants
19.9 Percentage of Participants
Percentage of Participants With Solicited Injection-site Erythema, Injection-site Swelling, and Injection-site Pain/Tenderness After Vaccination 2
Injection site pain
8.7 Percentage of Participants
10.3 Percentage of Participants
Percentage of Participants With Solicited Injection-site Erythema, Injection-site Swelling, and Injection-site Pain/Tenderness After Vaccination 2
Injection site swelling
10.1 Percentage of Participants
8.2 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 1 and up to 42 days after vaccination 2

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

An adverse event (AE) is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol - specified procedure, whether or not considered related to the medicinal product or protocol - specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition that is temporally associated with the use of the Sponsor's product, is also an AE. The percentage of participants with one or more adverse events for Day 1 through Day 42 after vaccination 1 and Day 1 through Day 42 after vaccination 2 was reported.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With One or More Adverse Events
90.0 Percentage of Participants
88.3 Percentage of Participants

SECONDARY outcome

Timeframe: Up to ~180 days after vaccination 2 (Up to ~285 days)

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

A serious adverse event (SAE) is defined as an adverse event that resulted in death, was life threatening, resulted in persistent or significant disability or incapacity, resulted in or prolonged a hospitalization, is a congenital anomaly or birth defect, is a cancer, was an overdose, or was an important medical event based on appropriate medical judgment. The percentage of participants with one or more SAEs \~180 days after vaccination 2 was reported.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With One or More Serious Adverse Events
2.0 Percentage of Participants
2.0 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 1 and up to 42 days after vaccination 2

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants with one or more vaccine-related adverse events for Day 1 through Day 42 after vaccination 1 and Day 1 through Day 42 after vaccination 2 was reported.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With One or More Vaccine-Related Adverse Events
56.2 Percentage of Participants
54.3 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 1

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

All systemic adverse events were recorded on an electronic vaccination report card (eVRC) for Day 1 through Day 42 after vaccination 1. The percentage of participants with one or more systemic adverse events (incidence ≥4 participants in one or more of the vaccination groups) was reported.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With One or More Systemic Adverse Events After Vaccination 1 (Incidence ≥ 4)
76.6 Percentage of Participants
74.3 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 2

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

All systemic adverse events were recorded on an electronic vaccination report card (eVRC) for Day 1 through Day 42 after vaccination 2. The percentage of participants with one or more systemic adverse events was assessed. A specific adverse event was reported only if its incidence was \>0% in one or more vaccination groups after rounding.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=276 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=282 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With One or More Systemic Adverse Events After Vaccination 2 (Incidence > 0)
60.9 Percentage of Participants
59.9 Percentage of Participants

SECONDARY outcome

Timeframe: 6 weeks (~43 days) after vaccination 1

Population: The analysis population consisted of all participants with seropositive antibody titer (≥1.25gpELISA units/mL) at baseline and with available postvaccination serology data.

The percentage of participants with seropositive antibody titer (≥1.25gpELISA units/mL) at baseline and postvaccination serology contributing to the per-protocol analysis was assessed. Confidence interval is calculated if there are at least 5 subjects who are seropositive. Antibody titers were assessed using gpELISA.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=31 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=40 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With Immunogenicity to Varicella Zoster Virus in Participants Initially Seropositive to Varicella Zoster Virus Antibody (≥ 5gpELISA Units/mL)
100.0 Percentage of Participants
Interval 88.8 to 100.0
97.5 Percentage of Participants
Interval 86.8 to 99.9

SECONDARY outcome

Timeframe: Baseline and 6 weeks (~43 days) after vaccination 1

Population: The analysis population consisted of all participants with with seropositive antibody titer (≥1.25gpELISA units/mL) at baseline and with available postvaccination serology data.

Blood samples were taken at pre-vaccination (baseline) and approximately 43 days after vaccination 1 to determine the geometric mean titer (GMT) of VZV antibodies via gpELISA. The geometric mean fold rise (GMFR) was calculated as GMT post vaccination 1/GMT pre-vaccination (baseline). Confidence interval is calculated if there are at least 5 subjects who are seropositive.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=31 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=40 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Geometric Mean Fold Rise From Baseline in Varicella Zoster Virus Antibody Titer in Participants Initially Seropositive to Varicella Zoster Virus Antibody
6.5 Ratio
Interval 5.0 to 8.5
7.2 Ratio
Interval 5.9 to 8.9

SECONDARY outcome

Timeframe: Baseline and 6 weeks (~43 days) after vaccination 1

Population: The analysis population consisted of all participants with seropositive antibody titer (≥1.25gpELISA units/mL) and available postvaccination serology data.

The percentage of participants with a geometric mean ≥4-fold rise from baseline of ≥1.25gpELISA units/mL in VZV antibody titer at approximately 43 days after vaccination 1 was assessed.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=31 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=40 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With a ≥4-fold Rise From Baseline in Varicella Zoster Virus Antibody Titers in Participants Initially Seropositive to Varicella Zoster Virus Antibody
80.6 Percentage of Participants
Interval 62.5 to 92.5
82.5 Percentage of Participants
Interval 67.2 to 92.7

SECONDARY outcome

Timeframe: Up to ~180 days after vaccination 2

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants with one or more vaccine-related serious adverse events up to \~180 days after vaccination 2 was reported. The study investigator determines whether the serious adverse event is related to the vaccine.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With One or More Vaccine-Related Serious Adverse Events
0.0 Percentage of Participants
0.0 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 1 and up to 42 days after vaccination 2

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants discontinued from the study due to an adverse event for Day 1 through Day 42 after vaccination 1 and Day 1 through Day 42 after vaccination 2 was reported.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants Who Discontinued From the Study Due to an Adverse Event
0.0 Percentage of Participants
0.0 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 1

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants with unsolicited injection-site adverse events (or AEs not superficially listed on eVRC) for Day 1 through Day 42 after vaccination 1 was assessed. A specific adverse event was reported only if its incidence was \>0% in one or more vaccination groups after rounding.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=299 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With One or More Unsolicited Injection-Site Adverse Events After Vaccination 1 (Incidence > 0%)
8.0 Percentage of Participants
9.3 Percentage of Participants

SECONDARY outcome

Timeframe: Up to 42 days after vaccination 2

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants with unsolicited injection-site adverse events (or AEs not superficially listed on eVRC) for Day 1 through Day 42 after vaccination 2 was assessed. A specific adverse event was reported only if its incidence was \>0% in one or more vaccination groups after rounding.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=276 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=282 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With One or More Unsolicited Injection-Site Adverse Events After Vaccination 2 (Incidence > 0%)
1.4 Percentage of Participants
2.1 Percentage of Participants

SECONDARY outcome

Timeframe: Up to ~180 days after vaccination 2 (Up to ~285 days)

Population: The analysis population consisted of all randomized/allocated participants who received at least 1 vaccination of study treatment with data at the time of assessment.

The percentage of participants with medically-attended AEs up to \~180 days after vaccination 2 that did not meet the definition of serious adverse event (incidence ≥5% in one or more vaccination groups) was reported.

Outcome measures

Outcome measures
Measure
VARIVAX PE34 + M-M-R II
n=275 Participants
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=282 Participants
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Percentage of Participants With Medically-Attended Adverse Events (Incidence ≥5%)
29.5 Percentge of Participants
26.6 Percentge of Participants

Adverse Events

VARIVAX PE34 + M-M-R II

Serious events: 6 serious events
Other events: 255 other events
Deaths: 0 deaths

VARIVAX (2016 CP) + M-M-R II

Serious events: 6 serious events
Other events: 240 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
VARIVAX PE34 + M-M-R II
n=299 participants at risk
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 participants at risk
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Infections and infestations
Adenovirus infection
0.33%
1/299 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.00%
0/300 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Croup infectious
0.33%
1/299 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.00%
0/300 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Gastroenteritis
0.33%
1/299 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.33%
1/300 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Respiratory syncytial virus bronchiolitis
0.67%
2/299 • Number of events 2 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.00%
0/300 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Reproductive system and breast disorders
Balanoposthitis
0.33%
1/299 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.00%
0/300 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Arthritis bacterial
0.00%
0/299 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.33%
1/300 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Bronchiolitis
0.00%
0/299 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.33%
1/300 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Cellulitis
0.00%
0/299 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.33%
1/300 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Enterovirus infection
0.00%
0/299 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.33%
1/300 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Osteomyelitis
0.33%
1/299 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.00%
0/300 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Pharyngeal abscess
0.33%
1/299 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.00%
0/300 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Pneumonia
0.00%
0/299 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.33%
1/300 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Nervous system disorders
Febrile convulsion
0.00%
0/299 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
0.33%
1/300 • Number of events 1 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.

Other adverse events

Other adverse events
Measure
VARIVAX PE34 + M-M-R II
n=299 participants at risk
VARIVAX® Passage Extension 34 (PE34) Process 0.5 mL administered in the left arm or thigh and M-M-R®II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
VARIVAX (2016 CP) + M-M-R II
n=300 participants at risk
2016 Commercial Process vaccine 0.5 mL administered in the left arm or thigh and M-M-R® II vaccine 0.5 mL administered in the right arm or thigh by subcutaneous injection on Day 1 and Day 91.
Respiratory, thoracic and mediastinal disorders
Nasal congestion
8.7%
26/299 • Number of events 33 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
6.7%
20/300 • Number of events 30 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Gastrointestinal disorders
Teething
9.0%
27/299 • Number of events 34 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
16.7%
50/300 • Number of events 63 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Gastrointestinal disorders
Vomiting
12.0%
36/299 • Number of events 40 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
14.0%
42/300 • Number of events 47 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
General disorders
Injection site bruising
4.0%
12/299 • Number of events 14 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
5.3%
16/300 • Number of events 19 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
General disorders
Injection site erythema
28.4%
85/299 • Number of events 158 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
29.0%
87/300 • Number of events 157 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
General disorders
Injection site pain
18.4%
55/299 • Number of events 129 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
19.7%
59/300 • Number of events 125 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
General disorders
Injection site swelling
15.7%
47/299 • Number of events 66 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
14.3%
43/300 • Number of events 64 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
General disorders
Pyrexia
32.4%
97/299 • Number of events 134 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
25.0%
75/300 • Number of events 111 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Hand-foot-and-mouth disease
5.7%
17/299 • Number of events 18 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
3.3%
10/300 • Number of events 10 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Nasopharyngitis
11.0%
33/299 • Number of events 38 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
14.7%
44/300 • Number of events 49 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Otitis media
11.7%
35/299 • Number of events 41 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
8.7%
26/300 • Number of events 29 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Otitis media acute
8.0%
24/299 • Number of events 24 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
9.0%
27/300 • Number of events 29 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Infections and infestations
Upper respiratory tract infection
12.4%
37/299 • Number of events 41 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
16.3%
49/300 • Number of events 58 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Psychiatric disorders
Irritability
16.7%
50/299 • Number of events 74 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
17.0%
51/300 • Number of events 70 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Respiratory, thoracic and mediastinal disorders
Cough
17.7%
53/299 • Number of events 66 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
18.7%
56/300 • Number of events 68 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
16.1%
48/299 • Number of events 76 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
14.7%
44/300 • Number of events 50 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Skin and subcutaneous tissue disorders
Dermatitis diaper
13.0%
39/299 • Number of events 46 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
11.0%
33/300 • Number of events 44 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Skin and subcutaneous tissue disorders
Rash
8.4%
25/299 • Number of events 38 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
9.0%
27/300 • Number of events 37 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
Gastrointestinal disorders
Diarrhoea
11.7%
35/299 • Number of events 40 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.
21.7%
65/300 • Number of events 78 • Up to 42 days after vaccination 1 and up to 42 days after vaccination 2 for all non-serious adverse events; Up to 180 days after vaccination 2 for all serious adverse events.
The analysis population consisted of all randomized/allocated participants who received at least 1 dose of trial treatment.

Additional Information

Senior Vice President, Global Clinical Development

Merck Sharp & Dohme Corp.

Phone: 1-800-672-6372

Results disclosure agreements

  • Principal investigator is a sponsor employee The Sponsor must have the opportunity to review all proposed abstracts, manuscripts or presentations regarding this trial 45 days prior to submission for publication/presentation. Any information identified by the Sponsor as confidential must be deleted prior to submission; this confidentiality does not include efficacy and safety results. Sponsor review can be expedited to meet publication timelines.
  • Publication restrictions are in place

Restriction type: OTHER