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Live attenuated tetravalent dengue vaccine

Phase 2

Dengue | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: Feb 19, 2019

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedPLACEBO_CONTROLLED
Total Trials1
Total Enrollment86
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00239577A Trial of a Walter Reed Army Institute of Research (WRAIR) Live Attenuated Virus Tetravalent Dengue Vaccine in Healthy US AdultsPHASE2 COMPLETED 86Apr 5, 2006Jun 19, 2007Feb 19, 20191 United States
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Study Endpoints
Primary Endpoints
Number of Subjects With Any and Grade 3 Solicited Local Symptoms
During the 21-day (Days 0-20) follow-up after Dose 1 of the study vaccine

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms
During the 21-day (Days 0-20) follow-up after Dose 1 of the study vaccine

Assessed solicited general symptoms were abdominal pain, arthralgia, fatigue, fever \[defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], headache, muscle aches, nausea, pain behind the eyes, photophobia, pruritus, rash and vomiting. Any = occurrence of the symptom regardless of intensity grade or relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever \> 39.0 °C. Related = symptom assessed by the investigator as causally related to the study vaccination.

Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4
At 30 days (Month 7) after Dose 2 of the study vaccine

Titers for DEN-1, DEN-2, DEN-3 and DEN-4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum.

Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4 Based on Priming Status
At 5 to 12 months post-Dose 2 of the study vaccine

Titers for DEN-1, DEN-2, DEN-3 and DEN-4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum. Not primed = Not primed by MN50; Primed = Primed by MN50. Primed subject is a subject with neutralizing antibody titer ≥ 10 ED50 at pre-vaccination for at least one DEN type. Not primed subject is a subject with neutralizing antibody titer \<10 ED50 for any DEN type at pre-vaccination.

Secondary Endpoints
Number of Subjects With Any and Grade 3 Solicited Local Symptoms
During the 21-day (Days 0-20) follow-up after Dose 2 of the study vaccine
Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms
During the 21-day (Days 0-20) follow-up after Dose 2 of the study vaccine
Number of Subjects With Unsolicited Adverse Events (AEs)
During the 31-day (Days 0-30) follow-up after any study vaccine dose
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Study Design & Arms
AllocationRANDOMIZED
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
DENGUE FORMULATION 17A GROUPEXPERIMENTALHealthy male or female subjects, between and including 18-45 years of age, who received two doses of Dengue vaccine Formulation 17a, administered subcutaneously into the upper-outer triceps/deltoid area of the non-dominant arm, at Months 0 and 6.
DENGUE FORMULATION 17B GROUPEXPERIMENTALHealthy male or female subjects, between and including 18-45 years of age, who received two primary doses of Dengue vaccine Formulation 17b, administered subcutaneously into the upper-outer triceps/deltoid area of the non-dominant arm, at Months 0 and 6, and one booster dose approximately 5-12 months after the second dose.
DENGUE FORMULATION 19 GROUPEXPERIMENTALHealthy male or female subjects, between and including 18-45 years of age, who received two primary doses of Dengue vaccine Formulation 19, administered subcutaneously into the upper-outer triceps/deltoid area of the non-dominant arm, at Months 0 and 6 and one booster dose approximately 5-12 months after the second dose.
PLACEBO GROUPPLACEBO_COMPARATORHealthy male or female subjects, between and including 18-45 years of age, who received two doses of Placebo, administered subcutaneously into the upper-outer triceps/deltoid area of the non-dominant arm, at Months 0 and 6.
Interventions
NameTypeDescription
Live attenuated tetravalent dengue vaccineBIOLOGICALLive attenuated tetravalent dengue vaccine
PlaceboBIOLOGICALPlacebo
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Eligibility Criteria
Age Range18 Years — 45 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion: * Healthy male or female adult 18-45 years at the time of vaccination * Free of obvious health problems as established by medical history and physical examination before entering into the study * Written informed consent obtained from the subject * Able to read the Subject Information Sh...

Countries:United States
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