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S. sonnei 1790GAHB

Phase 1

Shigellosis | Monoclonal antibody | Other |GSK plc|Last Updated: Jan 23, 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 Trials2
Total Enrollment102
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02034500Evaluate a New Shigella Sonnei Vaccine Administered Either by Intradermal, Intranasal or Intramuscular Route in Healthy AdultsPHASE1 COMPLETED 52Mar 1, 2014Apr 1, 2015Jun 21, 20161 United Kingdom
NCT02017899A Phase 1, Dose Escalation Study, to Evaluate a New Shigella Sonnei Vaccine in Healthy Adults.PHASE1 COMPLETED 50Feb 1, 2014Mar 1, 2015Jan 23, 20191 France
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Study Endpoints
Primary Endpoints
Number of subjects with solicited local reaction after any vaccination
During a 7-day (Days 1-7) post vaccination period following any injection

Any erythema/induration/swelling refers to: ≥25 mm in diameter. Grade 3 (severe) refers to erythema/induration/swelling \>100 mm in diameter. Grade 3 (severe) for injection site pain/nasal pain/facial edema/rhinorrhea refers to: prevents daily activity

Number of subjects with solicited systemic reaction after any vaccination
During a 7-day (Days 1 to 7) post vaccination period following any injection

Any= Incidence of any symptom regardless of intensity grade. Grade 3 = symptom that prevented daily activities

Number of subjects with Neutrophils results below and above the normal ranges
At Day 8

Day 8: VISIT 2 (D7 post 1st vac)

Number of subjects with Neutrophils results below and above the normal
At Day 36

Day 36: VISIT 3.1 (D7 post 2nd vac)

Secondary Endpoints
Anti-LPS S. sonnei serum IgG Geometric mean concentration (GMCs)
At baseline, at 28 days after each vaccination and at 168 days after last vaccination
Number of subjects with seroresponse for anti-LPS S. sonnei
At 28 days after each vaccination and 168 days after last vaccination
Number of subjects with high seroresponse for anti-LPS S. sonnei (IgG ELISA ≥121 EU)
At baseline, at 28 days after each vaccination and at 168 days after last vaccination
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
S. sonnei 1790GAHB - 0.1 mcg - IDEXPERIMENTALSubjects enrolled in COHORT A receiving 3 injections of S. sonnei 1790GAHB - 0.1 mcg intradermally (ID)
S. sonnei 1790GAHB - 1 mcg - IDEXPERIMENTALSubjects enrolled in COHORT B receiving 3 injections of S. sonnei 1790GAHB - 1 mcg intradermally (ID)
S. sonnei 1790GAHB - 10 mcg - IDEXPERIMENTALSubjects enrolled in COHORT C receiving 3 injections of S. sonnei 1790GAHB - 10 mcg intradermally (ID)
S. sonnei 1790GAHB - 5 mcg - INEXPERIMENTALSubjects enrolled in COHORT A receiving 3 injections of S. sonnei 1790GAHB - 5 mcg intranasally (IN)
S. sonnei 1790GAHB - 20 mcg - INEXPERIMENTALSubjects enrolled in COHORT B receiving 3 injections of S. sonnei 1790GAHB - 20 mcg intranasally (IN)
S. sonnei 1790GAHB - 80 mcg - INEXPERIMENTALSubjects enrolled in COHORT C receiving 3 injections of S. sonnei 1790GAHB - 80 mcg intranasally (IN)
S. sonnei 1790GAHB - 5 mcg - IMEXPERIMENTALSubjects enrolled in COHORT C receiving 3 injections of S. sonnei 1790GAHB - 5 mcg intramuscularly (IM)
Placebo - IDPLACEBO_COMPARATOR2 subjects enrolled in each COHORT A, B and C receiving 3 injections of Placebo intradermally (ID). These were pooled in one Placebo group in the analyses
Placebo - INPLACEBO_COMPARATOR2 subjects enrolled in each COHORT A, B and C receiving 3 injections of Placebo intranasally (IN). These were pooled in one Placebo group in the analyses
Placebo - IMPLACEBO_COMPARATOR2 subjects enrolled in COHORT C receiving 3 injections of Placebo intramuscularly (IM)
S. sonnei 1790GAHB - 1 mcgEXPERIMENTALSubjects enrolled in COHORT A receiving 3 injections of S. sonnei 1790GAHB - 1 mcg
S. sonnei 1790GAHB - 5 mcgEXPERIMENTALSubjects enrolled in COHORT B receiving 3 injections of S. sonnei 1790GAHB - 5 mcg
S. sonnei 1790GAHB - 25 mcgEXPERIMENTALSubjects enrolled in COHORT C receiving 3 injections of S. sonnei 1790GAHB - 25 mcg
S. sonnei 1790GAHB - 50 mcgEXPERIMENTALSubjects enrolled in COHORT D receiving 3 injections of S. sonnei 1790GAHB - 50 mcg
S. sonnei 1790GAHB - 100 mcgEXPERIMENTALSubjects enrolled in COHORT E receiving 3 injections of S. sonnei 1790GAHB - 100 mcg
PlaceboPLACEBO_COMPARATOR2 subjects enrolled in each COHORT A, B, C, D, E receiving 3 injections of Placebo. These were pooled in one Placebo group in the analyses
Interventions
NameTypeDescription
S. sonnei 1790GAHBBIOLOGICAL -
PlaceboBIOLOGICAL -
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Eligibility Criteria
Age Range18 Years — 45 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. Males and females of age ≥18 years to ≤45 years. 2. Individuals who, after the nature of the study have been explained to them, have given written consent according to local regulatory requirements. 3. Individuals in good health as determined by the outcome of medical history...

Countries:United KingdomFrance
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