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Immunogenicity and Safety of a Tetravalent Dengue Vaccine Booster Injection in Subjects Who Previously Completed a 3-dose Schedule

Immunogenicity and Safety of a Tetravalent Dengue Vaccine Given as a Booster Injection in Adolescents and Adults Who Previously Completed the 3-dose Schedule in a Study Conducted in Singapore

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02824198
Enrollment
118
Registered
2016-07-06
Start date
2016-07-01
Completion date
2019-01-18
Last updated
2022-03-24

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

Conditions

Dengue Fever, Dengue Hemorrhagic Fever

Keywords

Dengue Hemorrhagic Fever, Dengue Virus, CYD Dengue Vaccine

Brief summary

The aim of the study was to assess and describe the booster effect of a tetravalent CYD dengue vaccine dose administered about 5 years or more after the completion of a 3-dose vaccination schedule in Singapore. Primary Objective: * To demonstrate the non-inferiority in terms of geometric mean of titer ratios (GMTRs) of a CYD dengue vaccine booster compared to the third CYD dengue vaccine injection in participants from CYD28 trial (participants from Group 1 only). Secondary Objectives: * If the primary objective of non-inferiority achieved: To demonstrate the superiority, in terms of GMTRs, of a CYD dengue vaccine booster compared to the third CYD dengue vaccine injection in participants from CYD28 trial (participants from Group 1 only). * To describe the immune responses elicited by the CYD dengue vaccine booster or placebo injection in participants who received three doses of the CYD dengue vaccine in the CYD28 trial in all participants. * To describe the neutralizing antibody levels of each dengue serotype Post Dose 3 (CYD28 participants) and immediately prior to booster or placebo injection in all participants. * To describe the neutralizing antibody persistence 6 months, 1 year and 2 years post booster or placebo injection in all study participants. * To evaluate the safety of booster vaccination with CYD dengue vaccine in all participants.

Detailed description

Healthy adolescents and adults received 3 doses of the tetravalent dengue vaccine 5-6 years earlier in a previous CYD dengue vaccine trial (CYD28 - NCT00880893) received either a booster injection of CYD dengue vaccine or a placebo on Day 0. They were evaluated for safety and antibody persistence of the booster injection up to 2 years post-vaccination.

Interventions

BIOLOGICALCYD Dengue Vaccine (5 dose formulation)

0.5 mL, Subcutaneous

0.5 mL, Subcutaneous

Sponsors

Sanofi Pasteur, a Sanofi Company
Lead SponsorINDUSTRY

Study design

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

Masking description

An observer-blind procedure was followed for the injection of CYD dengue vaccine or placebo. Neither the blind-observer Investigator nor the participants (and/or participants' parent(s)/legally acceptable representative(s) for participants aged \< 21 years) knew which product was administered.

Eligibility

Sex/Gender
ALL
Age
14 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* Had been identified as a potential participant by the Sponsor, and was included in the list provided to the investigator (i.e., aged 9 to 45 years on the day of first injection of CYD dengue vaccine in CYD28, had received 3 doses of CYD dengue vaccine in the CYD28 trial, and had a post-dose 3 serum sample available). * Participants with good health, based on medical history and physical examination. * Informed consent form (ICF) had been signed and dated by participant (based on local regulations), and ICF had been signed and dated by the parent(s) or another legally acceptable representative (and by an independent witness if required by local regulations). * Participant and parent(s)/legally acceptable representative(s) was able to attend all scheduled visits to comply with all trial procedures.

Exclusion criteria

* Participant who received any other dengue vaccination that was not part of CYD28. * Participant was pregnant, or lactating, or of childbearing potential (considered of non childbearing potential, a female must be pre-menarche or post-menopausal for at least 1 year, surgically sterile, or using an effective method of contraception or abstinence from at least 4 weeks prior to vaccination until at least 4 weeks after vaccination). * Participation at the time of study enrollment (or in the 4 weeks preceding the trial vaccination) or planned participation during the present trial period in another clinical trial investigating a vaccine, drug, medical device, or medical procedure. * Receipt of any vaccine in the 4 weeks preceding the trial vaccination or planned receipt of any vaccine in the 4 weeks following the trial vaccination * Receipt of immune globulins, blood or blood-derived products in the past 3 months. * Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months). * Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccines used in the trial or to a vaccine containing any of the same substances. * Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with trial conduct or completion. * Receipt of blood or blood-derived products in the past 3 months, which might interfere with assessment of the immune response. * Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily. * Current alcohol abuse or drug addiction. * Moderate or severe acute illness/infection (according to investigator judgment) on the day of vaccination or febrile illness (temperature \>= 38.0°C). A prospective participant should not be included in the study until the condition had resolved or the febrile event had subsided. * Identified as an Investigator or employee of the Investigator or study center with direct involvement in the proposed study, or identified as an immediate family member (i.e., parent, spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study.

Design outcomes

Primary

MeasureTime frameDescription
Geometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster Group28 days post-dose 3 in CYD28 and 28 days post-booster injection in CYD63GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) were assessed using the plaque reduction neutralization test (PRNT).

Secondary

MeasureTime frameDescription
GMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboPre-booster injection (Day 0) and 28 days post-booster injectionGMTs of antibodies against each of the 4 dengue virus serotype (parental strains) following booster injection were assessed using PRNT. GMTRs were calculated as the ratio of GMTs post-booster injection and pre-booster injection.
Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboPre-booster injection (Day 0) and 28 days post-booster injectionSeropositivity against each dengue virus serotype were measured using dengue PRNT. Seropositive participants were defined as the participants with neutralizing antibody titers \>=10 (1/dilution).
Percentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or Placebo28 days post-booster injectionSeroconversion rates for each serotypes were defined as the percentages of participants with either a pre-booster titer \< 10 (1/dilution) and a post-booster titer \>= 40 (1/dilution), or a pre-booster titer \>=10 (1/dilution) and a \>= 4-fold increase in post-booster titer as determined by PRNT.
GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD6328 days post-dose 3 in CYD28 and pre-booster injection (Day 0) in CYD 63GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) were assessed using the PRNT.
GMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or Placebo28 days post-dose 3 in CYD28 and pre-booster injection (Day 0) in CYD63GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) were assessed using the PRNT. GMTRs were calculated as the ratio of GMTs post-dose 3 in CYD28 and pre-booster injection in CYD63.
GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboPre-booster injection (Day 0) and 28 days post-booster injectionGMTs of antibodies against each of the 4 dengue virus serotype (parental strains) following booster injection were assessed using PRNT.
GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or Placebo6 months, 12 months, and 24 months post-booster injectionGMTs of antibodies against each of the 4 dengue virus serotype (parental strains) following booster injection were assessed using PRNT.
GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboPre-booster injection (Day 0) and 6 months, 12 months, 24 months post-booster injectionGMTs of antibodies against each of the 4 dengue virus serotype (parental strains) following booster injection were assessed using PRNT. GMTRs were calculated as the ratio of GMTs post-booster injection and pre-booster injection.
Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or Placebo6 months, 12 months, and 24 months post-booster injectionSeropositivity against each dengue virus serotype were measured using dengue PRNT. Seropositive participants were defined as the participants with neutralizing antibody titers \>=10 (1/dilution).
Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboWithin 7 days after booster injectionSolicited injection site reactions: Pain, Erythema, and Swelling. Grade 3 injection site reactions: Pain: significant; prevents daily activity; Erythema and Swelling: \>100 millimeter.
Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboWithin 14 days after booster injectionSolicited systemic reactions: Fever, Headache, Malaise, Myalgia, and Asthenia. Grade 3 reactions: Fever: \>=39 degree Celsius; Headache, Malaise, Myalgia, and Asthenia: significant, prevents daily activity.
Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or Placebo28 days post-dose 3 in CYD28 and 28 days post-booster injection in CYD63Seropositivity against each dengue virus serotype were measured using dengue PRNT. Seropositive participants were defined as the participants with neutralizing antibody titers \>=10 (1/dilution).

Countries

Singapore

Participant flow

Recruitment details

Study participants were enrolled from 01 July 2016 to 18 February 2017 at 3 sites in Singapore.

Pre-assignment details

A total of 118 participants who received 3 doses of CYD dengue vaccine in study CYD28 (NCT00880893) were enrolled and randomized in this study (CYD63).

Participants by arm

ArmCount
CYD Dengue Vaccine Booster Group
Participants who received 3 doses of the tetravalent dengue vaccine in a previous CYD dengue vaccine study (CYD28), received a booster injection of CYD dengue vaccine at Day 0 in this study (CYD63).
89
Placebo Group
Participants who received 3 doses of the tetravalent dengue vaccine in a previous CYD dengue vaccine study (CYD28), received an injection of a placebo at Day 0 in this study (CYD63).
29
Total118

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up52
Overall StudyNon-compliance with the protocol51
Overall StudyWithdrawal by Subject50

Baseline characteristics

CharacteristicCYD Dengue Vaccine Booster GroupPlacebo GroupTotal
Age, Categorical
<=18 years
11 Participants0 Participants11 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
78 Participants29 Participants107 Participants
Age, Continuous28.1 years
STANDARD_DEVIATION 11.18
28.2 years
STANDARD_DEVIATION 9.18
28.2 years
STANDARD_DEVIATION 10.69
Race and Ethnicity Not Collected0 Participants
Sex: Female, Male
Female
43 Participants15 Participants58 Participants
Sex: Female, Male
Male
46 Participants14 Participants60 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 890 / 29
other
Total, other adverse events
47 / 8910 / 29
serious
Total, serious adverse events
5 / 890 / 29

Outcome results

Primary

Geometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster Group

GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) were assessed using the plaque reduction neutralization test (PRNT).

Time frame: 28 days post-dose 3 in CYD28 and 28 days post-booster injection in CYD63

Population: Analysis was performed on Per-Protocol Analysis Set which included all participants who had no protocol deviations from the present study (CYD63). Here, 'number analyzed' = participants with available data for each specified category.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Geometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster GroupDengue Virus Serotype 120.3 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Geometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster GroupDengue Virus Serotype 285.6 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Geometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster GroupDengue Virus Serotype 3102 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Geometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster GroupDengue Virus Serotype 492.8 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGeometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster GroupDengue Virus Serotype 4123 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGeometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster GroupDengue Virus Serotype 137.7 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGeometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster GroupDengue Virus Serotype 3105 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGeometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster GroupDengue Virus Serotype 256.2 titers (1/dilution)
Comparison: Dengue Virus Serotype 195% CI: [0.998, 1.79]
Comparison: Dengue Virus Serotype 295% CI: [0.439, 0.829]
Comparison: Dengue Virus Serotype 395% CI: [0.746, 1.28]
Comparison: Dengue Virus Serotype 495% CI: [0.918, 1.75]
Secondary

GMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or Placebo

GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) following booster injection were assessed using PRNT. GMTRs were calculated as the ratio of GMTs post-booster injection and pre-booster injection.

Time frame: Pre-booster injection (Day 0) and 28 days post-booster injection

Population: Analysis was performed on Per-Protocol Analysis Set.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 11.74 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 22.04 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 33.52 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 43.58 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 40.822 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 10.676 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 30.669 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 20.624 ratio
Secondary

GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or Placebo

GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) following booster injection were assessed using PRNT. GMTRs were calculated as the ratio of GMTs post-booster injection and pre-booster injection.

Time frame: Pre-booster injection (Day 0) and 6 months, 12 months, 24 months post-booster injection

Population: Analysis was performed on Per-Protocol Analysis Set. Here, 'number analyzed' = participants with available data for each specified category.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 6 months/Day 01.19 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 12 months/Day 00.983 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 24 months/Day 00.658 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 6 months/Day 01.60 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 12 months/Day 01.42 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 24 months/Day 01.43 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 6 months/Day 02.14 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 12 months/Day 01.76 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 24 months/Day 01.11 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 6 months/Day 02.17 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 12 months/Day 01.70 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 24 months/Day 01.35 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 12 months/Day 00.710 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 6 months/Day 00.646 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 6 months/Day 00.797 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 12 months/Day 00.660 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 6 months/Day 00.743 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 24 months/Day 00.594 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 12 months/Day 00.614 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 6 months/Day 00.634 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 24 months/Day 00.529 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 12 months/Day 00.687 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 24 months/Day 00.479 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 24 months/Day 00.646 ratio
Secondary

GMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or Placebo

GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) were assessed using the PRNT. GMTRs were calculated as the ratio of GMTs post-dose 3 in CYD28 and pre-booster injection in CYD63.

Time frame: 28 days post-dose 3 in CYD28 and pre-booster injection (Day 0) in CYD63

Population: Analysis was performed on Per-Protocol Analysis Set. Here, 'number analyzed'=participants with available data for each specified category.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 10.487 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 20.199 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 30.207 ratio
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 40.291 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 40.474 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 10.441 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 30.267 ratio
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTRs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28 And Before Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 20.313 ratio
Secondary

GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or Placebo

GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) following booster injection were assessed using PRNT.

Time frame: Pre-booster injection (Day 0) and 28 days post-booster injection

Population: Analysis was performed on Per-Protocol Analysis Set.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: Pre-booster Inj.13.5 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 28 days Post-booster Inj.37.7 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: Pre-booster Inj.18.4 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 28 days Post-booster Inj.56.2 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: Pre-booster Inj.22.4 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 28 days Post-booster Inj.105 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: Pre-booster Inj.28.0 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 28 days Post-booster Inj.123 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 28 days Post-booster Inj.39.8 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: Pre-booster Inj.16.7 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: Pre-booster Inj.27.4 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 28 days Post-booster Inj.18.1 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: Pre-booster Inj.44.9 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: Pre-booster Inj.23.2 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 28 days Post-booster Inj.24.1 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 28 days Post-booster Inj.21.5 titers (1/dilution)
Secondary

GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or Placebo

GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) following booster injection were assessed using PRNT.

Time frame: 6 months, 12 months, and 24 months post-booster injection

Population: Analysis was performed on Per-Protocol Analysis Set. Here, 'number analyzed' = participants with available data for each specified category.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3:6 months Post-booster Inj.65.1 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2:6 months Post-booster Inj.44.3 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype3:12 months Post-booster Inj.54.8 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype1:12 months Post-booster Inj.20.9 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype3:24 months Post-booster Inj.36.5 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype2:12 months Post-booster Inj.39.3 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4:6 months Post-booster Inj.75.6 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1:6 months Post-booster Inj.25.1 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype4:12 months Post-booster Inj.61.9 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype2:24 months Post-booster Inj.41.6 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype4:24 months Post-booster Inj.50.1 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype1:24 months Post-booster Inj.14.4 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype4:24 months Post-booster Inj.24.5 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1:6 months Post-booster Inj.14.3 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype1:12 months Post-booster Inj.14.6 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2:6 months Post-booster Inj.20.4 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype2:12 months Post-booster Inj.22.1 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype2:24 months Post-booster Inj.21.7 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3:6 months Post-booster Inj.26.7 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype3:12 months Post-booster Inj.20.6 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype3:24 months Post-booster Inj.16.8 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4:6 months Post-booster Inj.34.6 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype4:12 months Post-booster Inj.33.1 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype1:24 months Post-booster Inj.13.6 titers (1/dilution)
Secondary

GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63

GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) were assessed using the PRNT.

Time frame: 28 days post-dose 3 in CYD28 and pre-booster injection (Day 0) in CYD 63

Population: Analysis was performed on Per-Protocol Analysis Set. Here, 'number analyzed' = participants with available data for each specified category.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 1: 28 days Post-dose 320.3 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 1: Pre-booster Inj.13.5 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 2: 28 days Post-dose 385.6 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 2: Pre-booster Inj.18.4 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 3: 28 days Post-dose 3102 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 3: Pre-booster Inj.22.4 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 4: 28 days Post-dose 392.8 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 4: Pre-booster Inj.28.0 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 4: Pre-booster Inj.44.9 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 1: 28 days Post-dose 326.8 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 3: 28 days Post-dose 3107 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 1: Pre-booster Inj.16.7 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 4: 28 days Post-dose 386.5 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 2: 28 days Post-dose 365.4 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 3: Pre-booster Inj.27.4 titers (1/dilution)
CYD Dengue Vaccine Booster Group: Post Booster DoseGMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63Dengue Virus Serotype 2: Pre-booster Inj.23.2 titers (1/dilution)
Secondary

Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or Placebo

Solicited injection site reactions: Pain, Erythema, and Swelling. Grade 3 injection site reactions: Pain: significant; prevents daily activity; Erythema and Swelling: \>100 millimeter.

Time frame: Within 7 days after booster injection

Population: Analysis was performed on Safety Analysis Set which included all participants who received either CYD dengue vaccine or placebo. Here, 'number analyzed' = participants with available data for specified category.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Pain: Any29 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Pain: Grade 31 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Erythema: Any1 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Erythema: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Swelling: Any0 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Swelling: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Swelling: Any0 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Pain: Any7 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Erythema: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Pain: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Swelling: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Injection Site Reactions (Pain, Erythema, Swelling) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboInjection-site Erythema: Any0 Participants
Secondary

Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or Placebo

Solicited systemic reactions: Fever, Headache, Malaise, Myalgia, and Asthenia. Grade 3 reactions: Fever: \>=39 degree Celsius; Headache, Malaise, Myalgia, and Asthenia: significant, prevents daily activity.

Time frame: Within 14 days after booster injection

Population: Analysis was performed on Safety Analysis Set. Here, 'number analyzed' = participants with available data for specified category.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboFever: Any Grade2 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboFever: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboHeadache: Any Grade23 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboHeadache: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboMalaise: Any Grade11 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboMalaise: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboMyalgia: Any Grade21 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboMyalgia: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboAsthenia: Any Grade15 Participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Number of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboAsthenia: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboMyalgia: Grade 31 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboFever: Any Grade0 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboMalaise: Grade 31 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboFever: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboAsthenia: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboHeadache: Any Grade3 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboMyalgia: Any Grade7 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboHeadache: Grade 30 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboAsthenia: Any Grade4 Participants
CYD Dengue Vaccine Booster Group: Post Booster DoseNumber of Participants Reporting Solicited Systemic Reactions (Fever, Headache, Malaise, Myalgia, Asthenia) Following Booster Injection With Either CYD Dengue Vaccine or PlaceboMalaise: Any Grade3 Participants
Secondary

Percentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or Placebo

Seroconversion rates for each serotypes were defined as the percentages of participants with either a pre-booster titer \< 10 (1/dilution) and a post-booster titer \>= 40 (1/dilution), or a pre-booster titer \>=10 (1/dilution) and a \>= 4-fold increase in post-booster titer as determined by PRNT.

Time frame: 28 days post-booster injection

Population: Analysis was performed on Per-Protocol Analysis Set.

ArmMeasureGroupValue (NUMBER)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 129.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 229.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 344.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 438.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 40.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 13.6 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 30.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 20.0 percentage of participants
Secondary

Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or Placebo

Seropositivity against each dengue virus serotype were measured using dengue PRNT. Seropositive participants were defined as the participants with neutralizing antibody titers \>=10 (1/dilution).

Time frame: Pre-booster injection (Day 0) and 28 days post-booster injection

Population: Analysis was performed on Per-Protocol Analysis Set.

ArmMeasureGroupValue (NUMBER)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: Pre-booster Inj.32.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 28 days Post-booster Inj.74.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: Pre-booster Inj.41.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 28 days Post-booster Inj.81.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: Pre-booster Inj.58.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 28 days Post-booster Inj.96.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: Pre-booster Inj.70.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 28 days Post-booster Inj.97.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 28 days Post-booster Inj.82.1 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: Pre-booster Inj.32.1 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: Pre-booster Inj.60.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 28 days Post-booster Inj.35.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: Pre-booster Inj.89.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: Pre-booster Inj.42.9 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 28 days Post-booster Inj.67.9 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 28 days Post-booster Inj.42.9 percentage of participants
Secondary

Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or Placebo

Seropositivity against each dengue virus serotype were measured using dengue PRNT. Seropositive participants were defined as the participants with neutralizing antibody titers \>=10 (1/dilution).

Time frame: 6 months, 12 months, and 24 months post-booster injection

Population: Analysis was performed on Per-Protocol Analysis Set. Here, 'number analyzed' = participants with available data for each specified category.

ArmMeasureGroupValue (NUMBER)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1:6 months Post-booster Inj.59.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype1:12 months Post-booster Inj.49.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype1:24 months Post-booster Inj.37.9 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2:6 months Post-booster Inj.72.2 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype2:12 months Post-booster Inj.66.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype2:24 months Post-booster Inj.65.2 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3:6 months Post-booster Inj.88.9 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype3:12 months Post-booster Inj.89.9 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype3:24 months Post-booster Inj.76.9 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4:6 months Post-booster Inj.95.8 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype4:12 months Post-booster Inj.91.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype4:24 months Post-booster Inj.89.4 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype4:12 months Post-booster Inj.85.2 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1:6 months Post-booster Inj.33.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3:6 months Post-booster Inj.70.4 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype1:12 months Post-booster Inj.33.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4:6 months Post-booster Inj.77.8 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype1:24 months Post-booster Inj.34.6 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype3:12 months Post-booster Inj.63.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2:6 months Post-booster Inj.40.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype4:24 months Post-booster Inj.65.4 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype2:12 months Post-booster Inj.44.4 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype3:24 months Post-booster Inj.50.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype2:24 months Post-booster Inj.42.3 percentage of participants
Secondary

Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or Placebo

Seropositivity against each dengue virus serotype were measured using dengue PRNT. Seropositive participants were defined as the participants with neutralizing antibody titers \>=10 (1/dilution).

Time frame: 28 days post-dose 3 in CYD28 and 28 days post-booster injection in CYD63

Population: Analysis was performed on Per-Protocol Analysis Set. Here, 'number analyzed' = participants with available data for each specified category.

ArmMeasureGroupValue (NUMBER)
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 28 days Post-dose 352.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 28 days Post-booster Inj.74.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 28 days Post-dose 389.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 28 days Post-booster Inj.81.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 28 days Post-dose 397.2 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 28 days Post-booster Inj.96.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 28 days Post-dose 395.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Dose 3 in CYD28Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 28 days Post-booster Inj.97.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 28 days Post-booster Inj.82.1 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 28 days Post-dose 350.0 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 28 days Post-dose 396.3 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 1: 28 days Post-booster Inj.35.7 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 4: 28 days Post-dose 388.5 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 28 days Post-dose 374.1 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 3: 28 days Post-booster Inj.67.9 percentage of participants
CYD Dengue Vaccine Booster Group: Post Booster DosePercentage of Participants With Seropositivity Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received in Study CYD28, and Following Booster Injection With Either CYD Dengue Vaccine or PlaceboDengue Virus Serotype 2: 28 days Post-booster Inj.42.9 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026