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CYD dengue vaccine serotypes

Phase 2

Dengue Virus | Monoclonal antibody | Infectious Disease |Sanofi|Last Updated: Apr 5, 2022

Success Probability

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Trial Design

RandomizedDouble-BlindSHAM_CONTROLLED
Total Trials2
Total Enrollment480

FDA Designations

No designations recorded

Clinical trial landscape

CYD dengue vaccine serotypes · 2 trials · 5 indications

Phase 2 2
NCT00875524Study of ChimeriVax™ Tetravalent Dengue Vaccine in Healthy SubjectsDengue Virus
COMPLETED180 Analytics
NCT00788151Study of ChimeriVax™ Tetravalent Dengue Vaccine in Healthy Peruvian Children Aged 2 to 11 YearsDengue Virus
COMPLETED300 Analytics
PHASE2COMPLETED
Study of ChimeriVax™ Tetravalent Dengue Vaccine in Healthy Subjects
Dengue VirusUnlock trial analytics
PHASE2COMPLETED
Study of ChimeriVax™ Tetravalent Dengue Vaccine in Healthy Peruvian Children Aged 2 to 11 Years
Dengue VirusUnlock trial analytics

Study Endpoints

Primary Endpoints

Geometric Mean Titers (GMTs) of Antibodies Against Each Serotype of the Parental Dengue Virus Strain Before and Following Injection (Inj.) With CYD Dengue Tetravalent Vaccine
Pre-Inj. 1, 2, and 3 and 28 days Post-Inj. 1, 2, and 3

Geometric mean titers against each serotype of the parental dengue virus strains were assessed using the dengue Plaque Reduction Neutralization Test (PRNT).

Geometric Mean Titers (GMTs) of Antibodies Against Each Serotype of the Parental Dengue Virus Strain During the Follow-up Period
Year 1, Year 2, Year 3 and Year 4 after the Third Injection

GMT against each serotype of the parental dengue virus strains were assessed using the dengue PRNT.

Percentage of Participants With Antibody Titers >= 10 (1/Dil) Against Each Serotypes of the Parental Dengue Virus Strains Following Inj. With CYD Dengue Tetravalent Vaccine
Pre-Inj. 1, 2, and 3 and 28 days Post-Inj. 1, 2, and 3

Antibody titer levels against each serotype of the parental dengue virus strains were assessed using the PRNT.

Percentage of Participants With Antibody Titers >= 10 (1/Dil) Against Each Serotypes of the Parental Dengue Virus Strains Following Inj. With CYD Dengue Tetravalent Vaccine During the Follow-up Period
Year 1, Year 2, Year 3 and Year 4 after the Third Injection

Antibody titer levels against each serotype of the parental dengue virus strains were assessed using the PRNT.

Percentage of Participants With Solicited Inj. Site Reactions Following Any and Each Inj. With CYD Dengue Tetravalent Vaccine
7 days post-each injection

Solicited Inj. site reactions: Pain, Erythema, and Swelling. Pain:- Grade 1: easily tolerated, Grade 2: sufficiently discomforting to interfere with normal behavior or activities, Grade 3: Incapacitating, unable to perform usual activities. Erythema and Swelling:- Grade 1: \<2.5 cm, Grade 2: \>=2.5 to \<5 cm, Grade 3: \>= 5 cm.

Percentage of Participants With Solicited Systemic Reactions Following Any and Each Inj. With CYD Dengue Tetravalent Vaccine
14 days post-each injection

Solicited systemic reactions: Fever, Headache, Malaise, Myalgia, and Asthenia. Fever:- Grade 1: \>=37.5 degree Celsius (°C) to \<=38.0°C, Grade 2: \>38.0°C to \<=39.0°C, Grade 3: \>39.0°C. Headache, malaise, myalgia and asthenia: Grade 1: noticeable but does not interfere with daily activities, Grade 2: interferes with daily activities, Grade 3: prevents daily activities.

Percentage of Participants (Aged 2 to 11 Years) Reporting Solicited Injection-site and Systemic Reactions Following Each Injection (Inj.) With CYD Dengue Vaccine or Placebo
Day 0 (Post-Injection) up to Day 14 after injection 1, 2 and 3

Solicited injection site reactions: Pain, Erythema, and Swelling. Pain: Grade 3: incapacitating, unable to perform usual activities. Erythema and Swelling: Grade 3: \>= 5 cm. Solicited systemic reactions: Fever, Headache, Malaise, Myalgia, and Asthenia. Fever: Grade 3: \> 39.0°C; Headache, Malaise, Myalgia, and Asthenia: Grade 3: prevents daily activities.

Percentage of Participants (Aged 2 to 5 Years) Reporting Solicited Injection-site and Systemic Reactions Following Each Injection With CYD Dengue Vaccine or Placebo
Day 0 (Post-Injection) up to Day 14 after injection 1, 2 and 3

Solicited injection site reactions: Pain, Erythema, and Swelling. Pain: Grade 3: incapacitating, unable to perform usual activities. Erythema and Swelling: Grade 3: \>= 5 cm. Solicited systemic reactions: Fever, Headache, Malaise, Myalgia, and Asthenia. Fever: Grade 3: \> 39.0°C; Headache, Malaise, Myalgia, and Asthenia: Grade 3: prevents daily activities.

Percentage of Participants (Aged 6 to 11 Years) Reporting Solicited Injection-site and Systemic Reactions Following Each Injection With CYD Dengue Vaccine or Placebo
Day 0 (Post-Injection) up to Day 14 after injection 1, 2 and 3

Solicited injection site reactions: Pain, Erythema, and Swelling. Pain: Grade 3: incapacitating, unable to perform usual activities. Erythema and Swelling: Grade 3: \>= 5 cm. Solicited systemic reactions: Fever, Headache, Malaise, Myalgia, and Asthenia. Fever: Grade 3: \> 39.0°C; Headache, Malaise, Myalgia, and Asthenia: Grade 3: prevents daily activities.

Secondary Endpoints

Percentage of Participants (Aged 2 to 11 Years) Seropositive for Dengue Virus Serotypes Before and After Each Vaccination With CYD Dengue Vaccine or Placebo
Pre-Injection 1, 2, 3 and 28 days Post-Injection 1, 2 and 3
Percentage of Participants (Aged 2 to 5 Years) Seropositive for Dengue Virus Serotypes Before and After Each Vaccination With CYD Dengue Vaccine or Placebo
Pre-Injection 1, 2, 3 and 28 days Post-Injection 1, 2 and 3
Percentage of Participants (Aged 6 to 11 Years) Seropositive for Dengue Virus Serotypes Before and After Each Vaccination With CYD Dengue Vaccine or Placebo
Pre-Injection 1, 2, 3 and 28 days Post-Injection 1, 2 and 3
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
CYD Dengue Vaccine GroupEXPERIMENTALParticipants who received CYD dengue vaccine as first (Day 0), second (Day 0 + 6 months), and third (Day 0 + 12 months) injections. Participants were followed for 4 years after the third injection.
Control Vaccine GroupSHAM_COMPARATORParticipants who received the Meningococcal Polysaccharide Vaccine A + C, placebo, and Typhoid Vi polysaccharide vaccine as the first (Day 0), second (Day 0 + 6 months), and third (Day 0 + 12 months) injections, respectively. Participants were followed for 4 years after the third injection.
Control groupPLACEBO_COMPARATORParticipants received two injections of placebo, and one injection of pneumococcal polysaccharide vaccine (Pneumo23®) at 0, 6, and 12 months, respectively. Participants were followed for 6 months after the last vaccination (up to 18 months).

Interventions

NameTypeDescription
CYD dengue vaccine serotypes (1, 2, 3, 4).BIOLOGICAL0.5 mL, Subcutaneous
Meningococcal Polysaccharide A+C; NaCl; Typhoid Vi polysaccharideBIOLOGICALEach at 0.5 mL, Subcutaneous, respectively
CYD Dengue Vaccine Serotypes 1, 2, 3, and 4BIOLOGICAL0.5 mL, Subcutaneous (SC)
Pneumococcal polysaccharide vaccineBIOLOGICAL0.5 mL, SC
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Eligibility Criteria

Age Range2 Years to 45 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria : * Aged 2 to 45 years on the day of inclusion. * Provision of Informed Consent/Assent Form signed by the participant (and/or by the parent or another legally acceptable representative for participants \<18 years). * Participant (and parent/guardian for participants \<18 years) a...

Countries:VietnamPeru
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Frequently asked questions about CYD dengue vaccine serotypes

What is CYD dengue vaccine serotypes used for?

CYD dengue vaccine serotypes is an investigational tetravalent vaccine being developed for the prevention of dengue virus infection, including dengue fever and dengue hemorrhagic fever. It is designed to protect against the four serotypes of the dengue virus. The vaccine is currently in Phase 2 clinical development and has not been approved by regulatory authorities.

Who makes CYD dengue vaccine serotypes?

CYD dengue vaccine serotypes is being developed by Sanofi, a multinational pharmaceutical company traded on the stock exchange under the ticker symbol SNY. Sanofi is conducting clinical trials to evaluate the safety and efficacy of this tetravalent dengue vaccine candidate in pediatric and adult populations.

What phase is CYD dengue vaccine serotypes in?

CYD dengue vaccine serotypes is currently in Phase 2 clinical development. It is an investigational vaccine and has not yet received regulatory approval. Two Phase 2 clinical trials have been completed, involving a total of 480 participants, to assess the vaccine's safety and immunogenicity in healthy individuals.

What clinical trials is CYD dengue vaccine serotypes in?

CYD dengue vaccine serotypes has completed two Phase 2 clinical trials. The first, NCT00788151, enrolled 300 healthy children aged 2 to 11 years in Peru. The second, NCT00875524, enrolled 180 healthy subjects in Vietnam. Both trials were randomized, double-blind, and sham-controlled, and have been completed.

Is CYD dengue vaccine serotypes the same as ChimeriVax tetravalent dengue vaccine?

Yes, CYD dengue vaccine serotypes is also known as ChimeriVax tetravalent dengue vaccine. The clinical trials for this vaccine are titled 'Study of ChimeriVax™ Tetravalent Dengue Vaccine,' indicating that the product is referred to by this alternative name in research settings.