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GlaxoSmithKline Biologicals' investigational recombinant chimpanzee adenovirus Type 3-vectored Ebola Zaire vaccine

Phase 2

Virus Diseases | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: May 3, 2018

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials2
Total Enrollment3,624

FDA Designations

No designations recorded

Clinical trial landscape

GlaxoSmithKline Biologicals' investigational recombinant chimpanzee adenovirus Type 3-vectored Ebola Zaire vaccine · 2 trials · 1 indication

Phase 2 2
NCT02548078A Study to Evaluate the Safety and Immunogenicity of a Candidate Ebola Vaccine in ChildrenVirus Diseases
COMPLETED600 Analytics
NCT02485301A Study to Evaluate the Safety and Immunogenicity of a Candidate Ebola Vaccine in AdultsVirus Diseases
COMPLETED3,024 Analytics
PHASE2COMPLETED
A Study to Evaluate the Safety and Immunogenicity of a Candidate Ebola Vaccine in Children
Virus DiseasesUnlock trial analytics
PHASE2COMPLETED
A Study to Evaluate the Safety and Immunogenicity of a Candidate Ebola Vaccine in Adults
Virus DiseasesUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Subjects With Solicited Local Symptoms, Overall
During a 7-day follow-up period after each vaccination (i.e. the day of vaccination and 6 subsequent days)

Assessed solicited local symptoms included: pain and swelling at the injections site. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = crying at limb movement/spontaneous pain.Grade 3 swelling = swelling extending on a surface higher than (\>) 30 millimeters (mm). Solicited local symptoms, for this endpoint, were assessed in all subjects, in both groups.

Number of Subjects With Solicited Local Symptoms, by Age Stratum
During a 7-day follow-up period after each vaccination (i.e. the day of vaccination and 6 subsequent days)

Assessed solicited local symptoms included: pain and swelling at the injections site. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = crying at limb movement/spontaneous pain.Grade 3 swelling = swelling extending on a surface higher than (\>) 30 millimeters (mm), for children between 1-5 years old; \> 50 mm for children between 6-12 years old and \>100 mm for children between 13-17 years old.

Number of Subjects With Solicited General Symptoms, Overall
During a 7-day follow-up period after each vaccination (i.e. the day of vaccination and 6 subsequent days)

Solicited general symptoms assessed included: fatigue, fever \[defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], gastrointestinal symptoms \[nausea, vomiting, diarrhoea and/or abdominal pain\], headache, drowsiness, irritability/fussiness and loss of appetite. Any = occurrence of the symptom regardless of intensity grade. Grade 3 fatigue/headache/drowsiness/gastrointestinal symptoms = fatigue/headache/drowsiness/gastrointestinal symptoms that prevented normal activity. Grade 3 fever = temperature \> 39.5°C. Grade 3 irritability/fussiness = crying that couldn't be comforted. Grade 3 loss of appetite = not eating at all. Related = symptom assessed by the investigator as related to the vaccination. Solicited general symptoms, for this endpoint, were assessed in all subjects, in both groups.

Number of Subjects With Solicited General Symptoms, by Age Stratum
During a 7-day follow-up period after each vaccination (i.e. the day of vaccination and 6 subsequent days)

Solicited general symptoms assessed included: fatigue, fever \[defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], gastrointestinal symptoms \[nausea, vomiting, diarrhoea and/or abdominal pain\], headache, drowsiness, irritability/fussiness and loss of appetite. Any = occurrence of the symptom regardless of intensity grade. Grade 3 fatigue/headache/drowsiness/gastrointestinal symptoms = fatigue/headache/drowsiness/gastrointestinal symptoms that prevented normal activity. Grade 3 fever = temperature \> 39.5°C. Grade 3 irritability/fussiness = crying that couldn't be comforted. Grade 3 loss of appetite = not eating at all. Related = symptom assessed by the investigator as related to the vaccination. Solicited general symptoms, for this endpoint, were assessed in subjects aged 1-5 years, 6-12 years and 13-17 years. Symptoms with no values were not assessed for those specific age groups.

Number of Subjects With Unsolicited Adverse Events (AEs), Overall
During the 30-day follow-up period after each vaccination (i.e. the day of vaccination and 29 subsequent days)

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 outside 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. Unsolicited adverse events, for this endpoint, were assessed in all subjects, in both groups.

Number of Subjects With Unsolicited Adverse Events (AEs), by Age Stratum
During the 30-day follow-up period after each vaccination (i.e. the day of vaccination and 29 subsequent days)

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 outside 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. Unsolicited AEs, for this endpoint, were assessed in subjects between 1-5 years of age, 6-12 years of age and 13-17 years of age.

Percentage of Subjects With Haematological Laboratory Abnormalities, Overall
At Screening.

Haematological parameters assessed included: complete blood count (red blood cells \[RBC\], neutrophils, lymphocytes, white blood cells \[WBC\], haemoglobin, as well as differential count and platelet count for all subjects, in both groups. Reference range indicators used were: high, low, normal.

Percentage of Subjects With Haematological Laboratory Abnormalities, by Age Stratum
At Screening

Haematological parameters assessed included: complete blood count (red blood cells \[RBC\], neutrophils, lymphocytes, white blood cells \[WBC\], haemoglobin, as well as differential count and platelet count for subjects aged 1-5 years, 6-12 years and 13-17 years. Reference range indicators used were: high, low, normal.

Percentage of Subjects With Biochemical Laboratory Abnormalities, Overall
At Screening.

Biochemical parameters assessed included: alanine aminotransferase \[ALT\], creatinine \[CRE\] for all subjects, in both groups. Reference range indicators used were: high, low, normal.

Percentage of Subjects With Biochemical Laboratory Abnormalities, by Age Stratum
At Screening

Biochemical parameters assessed included: alanine aminotransferase \[ALT\], creatinine \[CRE\] for subjects aged 1-5 years, 6-12 years and 13-17 years. Reference range indicators used were: high, low, normal.

Number of Subjects With Adverse Events of Specific Interest (AESI), Overall
During the 7 day follow-up period after vaccination at Day 0 (i.e., Day 0 up to Day 6)

AESI included clinical symptoms of thrombocytopenia for all subjects, in both groups.

Number of Subjects With Adverse Events of Specific Interest (AESI), by Age Stratum
During the 7 day follow-up period after vaccination at Day 0 (i.e. Day 0 up to Day 6)

AESI included clinical symptoms of thrombocytopenia for subjects aged 1-5 years, 6-12 years and 13-17 years.

Number of Subjects With Serious Adverse Events, Overall
During the entire study period: From Screening to Month 12

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. SAEs, for this endpoint, were assessed in all subjects, in both groups.

Number of Subjects With Serious Adverse Events, by Age Stratum
During the entire study period: From Screening to Month 12

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. SAEs, for this endpoint, were assessed in subjects aged 1-5 years, 6-12 years and 13-17 years.

Number of Subjects With Solicited Local Adverse Events
During the 7-Day (Days 0-6) post-vaccination period

Assessed solicited local adverse events were pain, redness and swelling. Any = occurrence of any solicited local adverse event regardless of their intensity grade. Grade 3 Pain = significant pain at rest. Prevented normal every day activities. Grade 3 Redness/Swelling = redness/swelling spreading beyond 100 millimeters (mm) from injection site.

Number of Subjects With Solicited General Adverse Events
During the 7-Day (Days 0-6) post-vaccination period

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

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.

Percentage of Subjects With Haematological Laboratory Abnormalities
At Screening

Haematological parameters assessed included: complete blood count (red blood cells \[RBC\], neutrophils, lymphocytes, white blood cells \[WBC\], haemoglobin), as well as differential count and platelet count. Reference range indicators used were: high, low, normal.

Percentage of Subjects With Biochemical Laboratory Abnormalities
At Screening

Biochemical parameters assessed included: aminotransferase and creatinine. Reference range indicators used were: high, low, normal.

Number of Subjects With Adverse Events of Specific Interest (AESI)
During the 7-Day (Days 0-6) post-vaccination period

AESI included clinical symptoms of thrombocytopenia.

Number of Subjects With Serious Adverse Events (SAEs)
During the entire study period (up to Month 12)

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

Anti-glycoprotein (GP) Ebola Virus Zaire (EBOV) Antibody Titers, Overall
At Day 0, Day 30, Month 6, Month 6 + 30 Days and Month 12.
Anti-GP EBOV Antibody Titers, by Age Stratum
At Day 0, Day 30, Month 6, Month 6 + 30 Days and Month 12
Percentage of Seronegative/Seropositive Subjects for Anti-GP EBOV Antibodies, Overall
At Day 0, Day 30, Month 6 and Month 6 + 30 Days.
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelCROSSOVER
PurposePREVENTION

Treatment Arms

ArmTypeDescription
GSK3390107A+Nimenrix GroupEXPERIMENTALSubjects in the GSK3390107A+Nimenrix Group received the investigational GSK3390107A vaccine at the Day 0 visit and Nimenrix at the Month 6 visit, intramuscularly into the deltoid region, or thigh region for smaller children.
Nimenrix+GSK3390107A GroupEXPERIMENTALSubjects in the Nimenrix +GSK3390107A Group received Nimenrix at the Day 0 visit and the investigational GSK3390107A vaccine at the Month 6 visit, intramuscularly into the deltoid region, or thigh region for smaller children.
Group EBO-ZEXPERIMENTALThe subjects in the Group EBO-Z will receive the vaccine at Day 0 of the study
Group Placebo/ EBO-ZPLACEBO_COMPARATORThe subjects in the Group Placebo/ EBO-Z will receive a placebo at Day 0 (as a control) and will receive the investigational ChAd3-EBO-Z vaccine at Month 6

Interventions

NameTypeDescription
GlaxoSmithKline (GSK) Biologicals' investigational recombinant chimpanzee adenovirus Type 3-vectored Ebola Zaire vaccine (ChAd3-EBO-Z) (GSK3390107A)BIOLOGICALA single dose administered intramuscular
Nimenrix powder and solvent for solution for injection in pre-filled syringe; Meningococcal group A, C, W-135 and Y conjugate vaccineBIOLOGICALA single dose administered intramuscular
PlaceboDRUGA single dose administrated intramuscular
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Eligibility Criteria

Age Range1 Year to 17 Years
SexALL
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: * Subject's parent(s)/ legally acceptable representative(s) (LAR\[s\]) who, in the opinion of the Investigator, can and will comply with the requirements of the protocol (e.g. availability for Diary Card completion, return for follow-up visits, availability for clinical follow-u...

Countries:MaliSenegalCameroonNigeria
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