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ALVAC-HIV vCP1521 + AIDSVAX

Phase 3

HIV Infection | Monoclonal antibody | Infectious Disease |United Therapeutics Corporation|Last Updated: Apr 24, 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
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment16,402
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00223080HIV Vaccine Trial in Thai AdultsPHASE3 COMPLETED 16,402Oct 1, 2003Jun 1, 2009Apr 24, 20198 Thailand
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Study Endpoints
Primary Endpoints
Kaplan-Meier Estimate of HIV-1 Infection Rate in Intent to Treat Population
42 Months

HIV-1 infection rate. Detection of HIV-1 infection was defined according to the HIV diagnostic algorithm utilizing serologic and nucleic acid technologies. Incidence of HIV infection was compared in the vaccine and placebo-recipient groups.

Vaccine Efficacy as Determined by Acquisition of Infection in the Per-protocol Population
42 Months

Cumulative Number of HIV Infections. Detection of HIV-1 infection was defined according to the HIV diagnostic algorithm utilizing serologic and nucleic acid technologies. Incidence of HIV infection was compared in the vaccine and placebo-recipient groups.

Changes in HIV-1 Viral Load in Volunteers Developing HIV Infection During the Trial for the MITT Population
42 months

Log10 HIV-1 viral loads for diagnostic specimens for subjects with post-HIV infection. The trial quantitated HIV plasma viral load at the time of diagnosis and through the remainder of the follow-up period. Peri infection results were compared in vaccine and placebo recipients who became HIV-infected during the trial.

Changes in HIV-1 Viral Load in Volunteers Developing HIV Infection During the Trial for the Per Protocol Population
42 months

Log10 HIV-1 viral loads for diagnostic specimens for subjects with post-HIV infection. The trial quantitated HIV plasma viral load at the time of diagnosis and through the remainder of the follow-up period. Peri infection results were compared in vaccine and placebo recipients who became HIV-infected during the trial.

Secondary Endpoints
Changes in CD4 T Cell Count in Volunteers Who Developed HIV Infection During the Trial for MITT Population
42 weeks
Safety Assessment (SAE's and AEs)
Dose Interval 1: week 0, Dose Interval 2: Week 4, Dose Interval 3: Week 12, and Dose Interval 4: Week 24; every 6 months during 3 year f/u period
Change in HIV Risk Behaviors Associated With Participation in the Vaccine Trial (MITT)
Week 182
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
VaccineACTIVE_COMPARATORALVAC-HIV vCP1521 + AIDSVAX will both be administered by the intramuscular route (preferably in the deltoid region) on weeks 0, 4, 12, and 24.
PlaceboPLACEBO_COMPARATORALVAC Placebo + AIDSVAX Placebo will be administered at week 12 and 24. ALVAC Placebo only was additionally administered at week 0 and 4.
Interventions
NameTypeDescription
ALVAC-HIV vCP1521 + AIDSVAXBIOLOGICALCombined dose of 600 μg (300 μg of each antigen), co-formulated and administered in alumi-um hydroxide gel at a dose of 600 μg/mL
ALVAC Placebo + AIDSVAX PlaceboOTHERALVAC carrier, supplied as a lyophilized product, without virus and Aluminum hydroxide adjuvant, 1.2 mL per vial, given as a 1 mL injection
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Eligibility Criteria
Age Range18 Years — 30 Years
SexALL
Healthy VolunteersYes
Study Sites8

Inclusion Criteria: * Possession of the 13-digit Thai National ID card * 18-30 years of age (inclusive), male or female * For women, a negative urine pregnancy test on the day of enrollment, as well as assurance that adequate birth control measures would be applied during the course of the injectio...

Countries:Thailand
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