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rVSVΔG-ZEBOV-GP, V920

Phase 1

Ebola Virus Disease | Monoclonal antibody | Infectious Disease |Merck & Company, Inc.|Last Updated: Apr 20, 2023

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_CONTROLLEDDMC
Total Trials1
Total Enrollment120
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05130398Safety and Immunogenicity of the rVSVΔG-ZEBOV-GP Ebola Virus Vaccine Candidate in Children Living in Lambaréné, GabonPHASE1 COMPLETED 120Apr 9, 2021Aug 9, 2022Apr 20, 20231 Gabon
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Study Endpoints
Primary Endpoints
Concentration of viral vector in blood, saliva and urine in vaccinees
at days 0, 1, 2/3, 7, 14 and 28

Concentration of rVSVΔG-ZEBOV-GP in blood, urine, or saliva as detected by RT-PCR and expressed as copy number in vaccinees

Prevalence and relative risk of sollicited adverse events in vaccinees
until day 14 post vaccination

Proportion (percent) of participants experiencing sollicited adverse events in vaccinees groups

Prevalence and relative risk of unsolicited adverse events and serious adverse events in vaccinees
until day 28 after vaccination

Proportion (percent ) of participant experiencing unsollicited adverse event (AEs) and serious adverse events (SAEs) and relative risk of AEs and SAEs in participant by vaccine groups

Secondary Endpoints
Prevalence and relative risk of serious adverse events
until day 365
Transmission intensity of the viral vector in blood, saliva and urine among the the relatives of the vaccinees
days 0, 1, 3, 14, 28, 56
Titres of ZEBOV-GP-specific binding antibody
days 0, 1, 3, 14, 21, 28, 56, 84, 180, 365
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
the rVSVΔG-ZEBOV-GP vaccineEXPERIMENTALParticipants of the experimental arm will receive a single intramuscular dose of ≥7.8 x 107 pfu of the rVSVΔG-ZEBOV-GP vaccine. In total, 80 participants will receive the experimental vaccine: 40 participants aged 6-12 years and 40 aged 1-5 years.
The Chikenpox or Varicella (Varilix) vaccineACTIVE_COMPARATORThe control arm consists of the chickenpox vaccine. Forty children will receive a single subcutaneous dose of Varilix, the active comparator vaccine, 20 aged 6-12 years and 20 aged 1-5 years
Fibre and equilibrate dietEXPERIMENTALParticipants were assigned to receive two meals daily ( breakfast and lunch) for 21 days. About 30 children are randomly assigned to fibre and equilibrate diet.
Active detection and treatment of pathogens according to standard of careEXPERIMENTALThe following pathogens: P. falciparum, Ascaris lumbricoides, Trichuris trichiura, Necator americanus, intestinal protozoa, BG+, BG- colonies and pathogens, SARS-CoV2 are actively detected and treated according to the standard of care every month. About 30 children are randomly assigned to this arm.
Diet plus Active detection and treatment of pathogens according to standard of careEXPERIMENTALParticipants were assigned to receive two meals daily ( breakfast and lunch) for 21 days and concomitantly assigned to active detection of P. falciparum, Ascaris lumbricoides, Trichuris trichiura, Necator americanus, intestinal protozoa, BG+, BG- colonies and pathogens, SARS-CoV2 every month. About 30 children are assigned to receive combined interventions
No diet and no pathogen detectionPLACEBO_COMPARATORAbout 30 children received no diet and no active detection of pathogens
Interventions
NameTypeDescription
rVSVΔG-ZEBOV-GP, V920BIOLOGICALThe experimental vaccine is the rVSVΔG-ZEBOV-GP, an Ebola vaccine.
Fibre and equilibrate breakfast and lunchDIETARY_SUPPLEMENTParticipants receive fibres and caloric equilibrate diet during breakfast and lunch every day for 21 consecutive days.
Active detection and treatment of pathogensDIAGNOSTIC_TESTMonthly diagnostic and treatment of childhood infections Active detection and treatment of pathogens.
Fibre and equilibrate breakfast and lunch plus Active detection and treatment of pathogensCOMBINATION_PRODUCTParticipants receive fibres and caloric equilibrate diet during breakfast and lunch every day for 21 consecutive days and diagnostic and treatment of childhood infections Active detection and treatment of pathogens every month for 12 months
Chikenpox or Varicella vaccine (VARILRIX)BIOLOGICALThe active comparator vaccine, a Varicella vaccine (VARILRIX®)
PlaceboOTHERAbout 30 children do not receive diet, nor active pathogen detection
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Eligibility Criteria
Age Range1 Year — 12 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy children aged 1 to 12 years (inclusive) at the time of inclusion. * Willingness of parent or legal guardian to provide written informed consent prior to screening procedures. * Willingness of the relatives of the participant to provide written informed consent if they ...

Countries:Gabon
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