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GSK3389245A_LD GROUP

Phase 1

Respiratory Synctial Virus Infections | Monoclonal antibody | Other |GSK plc|Last Updated: Aug 20, 2018

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_CONTROLLEDBiomarker
Total Trials1
Total Enrollment73
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02491463A Study to Assess the Safety, Reactogenicity and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' RSV Investigational Vaccine (ChAd155-RSV) (GSK3389245A) in Healthy AdultsPHASE1 COMPLETED 73Jul 23, 2015Jan 26, 2017Aug 20, 20181 United Kingdom
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Study Endpoints
Primary Endpoints
Number of Subjects With Solicited Local Symptoms
During the 7-day (Days 0-6) post-vaccination period following each dose and across doses

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 100 millimeters (mm) of injection site. All solicited local symptoms are considered as related to the vaccination.

Number of Subjects With Solicited General Symptoms
During the 7-day (Days 0-6) post-vaccination period following each dose and across doses

Assessed solicited general symptoms were fatigue, fever \[defined as oral temperature equal to or above (≥) 37.5 degrees Celsius (°C)\] gastrointestinal symptoms (gastro) \[nausea, vomiting, diarrhoea and/or abdominal pain\] and headache. Any = occurrence of the symptom regardless of intensity grade and relationship to the vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever \> 39.5 °C. Related = symptom assessed by the investigator as related to the vaccination.

Number of Subjects With Haematological and Biochemical Laboratory Abnormalities
At Day 1

Haematological/Biochemical parameters assessed were haemoglobin level \[HgL\], red blood cells \[RBC\], white blood cell \[WBC\], lymphocyte \[LYM\], neutrophil \[NEU\], eosinophil \[EOS\], reticulocyte \[RET\], platelet count \[PLC\], haptoglobin \[Hpg\], prothrombin time \[PT\] and partial thromboplastin time \[PTT\]. alanine aminotransferase \[ALT\], aspartate aminotransferase \[AST\], creatinine \[CRE\], lactate dehydrogenase \[LDH\] and bilirubin direct or total \[BLD/BLT\].Values were: unknown at baseline and below at Day 1 (U-B), unknown at baseline and within at Day 1 (U-W), unknown at baseline and above at Day 1 (U-A), below at baseline and below at Day 1 (B-B), below at baseline and within at Day 1 (B-W), below at baseline and above at Day 1(B-A), within at baseline and below at Day 1 (W-B), within at baseline and within at Day 1(W-W), within at baseline and above at Day 1(W-A), above at baseline and below at Day 1(A-B), above at baseline and within at Day 1 (A-W), above at baseline and above at Day 1(A-A)

Number of Subjects With Haematological and Biochemical Results by Maximum Grade
From Day 1 to Day 60

Parameters analysed were ALT, activated partial thromboplastin time \[APTT\], AST, total bilirubin \[TB\], CRE, EOS, haemoglobin decrease \[HgD\], LYM, NEU, platelets \[PLA\], PT, white blood cells decrease \[WBCD\] and white blood cells increase \[WBCI\]. Assessed grades were: Unknown \[UG\], grade 0 \[G0\] = no grade, 1 \[G1\] = mild grade, 2 \[G2\] = moderate grade, 3 \[G3\] = severe grade, 4 \[G4\] = potentially life threatening and overall grading \[GTotal\]. Parameter grade combinations expressed were: parameter plus UG/G0/1/2/3/4/Total at baseline versus grading G0/1/2/3/4/Total from Day 1 up to Day 60, for the same parameter, e.g. ALT G0-G2.

Number of Subjects With Unsolicited Adverse Events (AEs)
During the 30-day (Days 0-29) post-vaccination period

An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset out-side the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.

Number of Subjects With Serious Adverse Events (SAEs)
From Day 0 to Day 360

Serious adverse events (SAEs) assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

Secondary Endpoints
Number of Subjects With Haematological and Biochemical Results by Maximum Grade
From Day 1 up to Day 360
Anti-respiratory Syncytial Virus (RSV) Neutralizing Antibodies Titers
At pre-vaccination (Day 0), post-Dose 1 (Day 30) and post-Dose 2 (Day 60)
Number of Subjects With Anti-RSV Neutralizing Antibodies Above the Cut-off Value
At pre-vaccination (Day 0), post-Dose 1 (Day 30) and post-Dose 2 (Day 60)
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
GSK3389245A_LD GROUPEXPERIMENTALSubjects in this group will receive 2 doses, one month apart of the GSK3389245A vaccine low dose
GSK3389245A_HD GROUPEXPERIMENTALSubjects in this group will receive 2 doses, one month apart, of the GSK3389245A vaccine high dose
Bexsero GroupACTIVE_COMPARATORSubjects in this group will receive 2 doses, one month apart, of Bexsero
Placebo GroupPLACEBO_COMPARATORSubjects in this group will receive 2 doses, one month apart, of placebo
Interventions
NameTypeDescription
GSK3389245A_LD GROUPBIOLOGICAL2 doses administered intramuscularly at Day 0 and Day 30 in the deltoid region of the non-dominant arm
GSK3389245A_HD GROUPBIOLOGICAL2 doses administered intramuscularly at Day 0 and Day 30 in the deltoid region of the non-dominant arm
BexseroBIOLOGICAL2 doses administered intramuscularly at Day 0 and Day 30 in the deltoid region of the non-dominant arm
PlaceboDRUG2 doses administered intramuscularly at Day 0 and Day 30 in the deltoid region of the non-dominant arm
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Eligibility Criteria
Age Range18 Years — 45 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Subjects who, in the opinion of the investigator, can and will comply with the requirements of the protocol * Written informed consent obtained from the subject prior to performing any study specific procedure * A male or female between, and including, 18 and 45 years of age a...

Countries:United Kingdom
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