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Live, attenuated, dengue serotype 1, 2, 3, 4 virus

Phase 3

Dengue | Monoclonal antibody | Infectious Disease |Sanofi|Last Updated: Mar 21, 2022

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment10,275

FDA Designations

No designations recorded

Clinical trial landscape

Live, attenuated, dengue serotype 1, 2, 3, 4 virus · 2 trials · 3 indications

Phase 3 2
NCT01374516Study of a Novel Tetravalent Dengue Vaccine in Healthy Children and Adolescents Aged 9 to 16 Years in Latin AmericaDengue Fever
COMPLETED20,869 Analytics
NCT01373281Study of a Novel Tetravalent Dengue Vaccine in Healthy Children Aged 2 to 14 Years in AsiaDengue
COMPLETED10,275 Analytics
PHASE3COMPLETED
Study of a Novel Tetravalent Dengue Vaccine in Healthy Children and Adolescents Aged 9 to 16 Years in Latin America
Dengue FeverUnlock trial analytics
PHASE3COMPLETED
Study of a Novel Tetravalent Dengue Vaccine in Healthy Children Aged 2 to 14 Years in Asia
DengueUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Symptomatic Virologically Confirmed Dengue (VCD) Cases Due to Any Serotype During the Active Phase Post-dose 3 Following Injection With Either CYD Dengue Vaccine or a Placebo
28 days and up to 13 months post-injection 3

Symptomatic VCD cases were defined as occurrence of acute febrile illness (temperature \>=38°C on at least 2 consecutive days) and confirmation of dengue virus infection by dengue reverse transcriptase polymerase chain reaction (RT-PCR) and/or dengue non-structural (NS) protein 1 antigen enzyme-linked immunosorbent assay (ELISA). Vaccine efficacy was defined as 1 minus the ratio of density incidence due to any serotype after at least 1 dose in the CYD Dengue Vaccine Group over the density incidence of the Placebo Group.

Number of Symptomatic Virologically Confirmed Dengue (VCD) Cases Due to Any Serotype During the Active Phase Post-dose 3 Following Injection (Inj.) With Either CYD Dengue Vaccine or a Placebo
28 days and up to 13 months post-dose 3

Symptomatic VCD cases were defined as occurrence of acute febrile illness (temperature \>=38°C on at least 2 consecutive days) and confirmation of dengue virus infection by dengue reverse transcriptase polymerase chain reaction and/or dengue NS protein 1 antigen enzyme-linked immunosorbent assay. Vaccine efficacy was defined as 1 minus the ratio of density incidence due to any serotype after at least 1 dose in the CYD Dengue Vaccine Group over the density incidence of the Placebo Vaccine Group.

Secondary Endpoints

Number of Symptomatic VCD Cases Due to Any Serotype During the Active Phase Following Injection With Either CYD Dengue Vaccine or a Placebo
Day 0 up to 13 months post-injection 3
Number of Symptomatic VCD Cases Due to Any Serotype Occurring 28 Days Post-dose 1 Following Injection With Either CYD Dengue Vaccine or a Placebo
28 days post-injection 1 and up to 13 months post-injection 3
Number of Symptomatic VCD Cases Due to Any Serotype Post-dose 2 Following Injection With Either CYD Dengue Vaccine or a Placebo
28 days post-injection 2 and up to 13 months post-injection 3
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
CYD Dengue Vaccine GroupEXPERIMENTALParticipants were to receive 3 doses of CYD dengue vaccine; one each at 0, 6, and 12 months.
Placebo GroupPLACEBO_COMPARATORParticipants were to receive a placebo vaccine at 0, 6, and 12 months.
Dengue Vaccine GroupEXPERIMENTALParticipants were to receive CYD dengue vaccine at 0, 6, and 12 months.
Control GroupPLACEBO_COMPARATORParticipants were to receive a placebo vaccine at 0, 6, and 12 months.

Interventions

NameTypeDescription
Live, attenuated, dengue serotype 1, 2, 3, 4 virusBIOLOGICAL0.5 mL, Subcutaneous
Placebo: (NaCl) 0.9% solutionBIOLOGICAL0.5 mL, Subcutaneous
Placebo: Sodium chloride (NaCl) 0.9%BIOLOGICAL0.5 mL, Subcutaneous
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Eligibility Criteria

Age Range9 Years to 16 Years
SexALL
Healthy VolunteersYes
Study Sites22

Inclusion Criteria: * Aged 9 to 16 years on the day of inclusion and resident of the site zone * Participant in good health, based on medical history and physical examination * Assent form or informed consent form has been signed and dated by the participant (based on local regulations), and inform...

Countries:BrazilColombiaHondurasMexicoPuerto RicoIndonesiaMalaysiaPhilippinesThailandVietnam
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Frequently asked questions about Live, attenuated, dengue serotype 1, 2, 3, 4 virus

What is Live, attenuated, dengue serotype 1, 2, 3, 4 virus used for?

Live, attenuated, dengue serotype 1, 2, 3, 4 virus is an investigational vaccine being studied for the prevention of dengue and dengue fever. It is designed to protect against all four dengue virus serotypes. The vaccine is currently in Phase 3 clinical development and is not yet approved by regulatory authorities.

Who makes Live, attenuated, dengue serotype 1, 2, 3, 4 virus?

Live, attenuated, dengue serotype 1, 2, 3, 4 virus is being developed by Sanofi, a multinational pharmaceutical company listed on the stock exchange under the ticker SNY. Sanofi is conducting Phase 3 clinical trials to evaluate the vaccine's safety and efficacy in preventing dengue disease.

What phase is Live, attenuated, dengue serotype 1, 2, 3, 4 virus in?

Live, attenuated, dengue serotype 1, 2, 3, 4 virus is in Phase 3 clinical development. Two large-scale Phase 3 trials have been completed, enrolling a total of over 20,000 healthy children and adolescents in Asia and Latin America. The vaccine remains investigational and has not received regulatory approval.

What clinical trials is Live, attenuated, dengue serotype 1, 2, 3, 4 virus in?

Live, attenuated, dengue serotype 1, 2, 3, 4 virus has been studied in two completed Phase 3 trials: NCT01373281, which enrolled 10,275 children aged 2 to 14 years in five Asian countries, and NCT01374516, which enrolled 20,869 children and adolescents aged 9 to 16 years in Latin America. Both trials were randomized, double-blind, and placebo-controlled.

Is Live, attenuated, dengue serotype 1, 2, 3, 4 virus the same as a dengue vaccine?

Live, attenuated, dengue serotype 1, 2, 3, 4 virus is a tetravalent dengue vaccine candidate that contains live, attenuated versions of dengue virus serotypes 1, 2, 3, and 4. It is designed to provide immunity against all four serotypes of the dengue virus, which cause dengue fever and dengue hemorrhagic fever.