Safety, Tolerability and Immunogenicity Study of 3 Prime-boost Regimens for Ebola Vaccines Ad26.ZEBOV/MVA-BN-Filo in Healthy Adults, Children and Human Immunodeficiency Virus Positive (HIV+) Adults
Hemorrhagic Fever, Ebola
About this trial
This is an interventional prevention trial for Hemorrhagic Fever, Ebola focused on measuring Healthy, Vaccine, Ebola viruses, Ebola virus disease (EVD), Filoviruses, Hemorrhagic fever, Monovalent vaccine, Human adenovirus serotype 26 (Ad26) expressing the Ebola virus Mayinga variant glycoprotein (Ad26.ZEBOV), Modified Vaccinia Virus Ankara - Bavarian Nordic (MVA-BN) Filo-vector, Safety, Immunogenicity, Inserm, Centre Muraz
Eligibility Criteria
Inclusion Criteria:
Criteria for healthy adults and elderly participants:
- Participant must be healthy in the investigator's clinical judgment on the basis of clinical laboratory tests, medical history, ECG, physical examination and vital signs performed at screening. Participants with hemoglobin values outside the local laboratory reference ranges may be included if the hemoglobin is above the age/gender specific limits
- Female participants of childbearing potential must use adequate birth control measures, must have a negative pregnancy test at screening and immediately prior to each study vaccination
- A man who is sexually active with a woman of childbearing potential must be willing to use condoms for sexual intercourse beginning prior to enrollment, unless a vasectomy was performed more than 1 year prior to screening
- Participant must pass the test of understanding (TOU)
- Participant must be available and willing to participate for the duration of the study visits and follow-up, provide verifiable identification, and have a means to be contacted Additional Inclusion Criteria HIV-infected Participants
- Participant must be between 18 to 50 years of age and must have a documented HIV-infection for at least 6 months prior to screening
- Participant must be on a stable 3 drug regimen of Highly Active Antiretroviral Therapy for at least 4 weeks prior to screening and having a CD4 positive cell count of >350 cells/microliter. Also participant must be in an otherwise reasonable good medical condition Additional Inclusion Criteria Children Participants
- Parent/legal guardian must pass the TOU before signing the inform consent form. Informed assent must be obtained from adolescents and older children, depending on local regulations and practice
- Pediatric participant's age on the day of randomization must be within one of the 2 age strata: 12-17 years or 4-11 years (all ages inclusive)
- Pediatric participants must have received all routine immunizations appropriate for his or her age as reported by the parent(s)/legal guardian, according to local routine vaccination schedules
Exclusion criteria:
- Diagnosed with Ebola virus disease or previously exposed to Ebola virus including travel to epidemic Ebola areas less than 1 month prior to screening
- Having received any candidate Ebola vaccine or any experimental candidate Ad26- or MVA-based vaccine in the past
- Having HIV type 1 or type 2 infection (for healthy adults/elderly/children)
- Pediatric participants with weight-per-height below 10th percentile according to the Centers for Disease Control and Prevention (CDC) growth charts (4- to 11-year-olds)
- A woman who is pregnant, breast-feeding or planning to become pregnant while enrolled in the study or within at least 3 months after the prime vaccination or up to 1 month after the boost vaccination (whichever takes longer) or within at least 3 months after the third vaccination
- For HIV+ adults, no AIDS-defining illnesses
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Experimental
Group 1
Group 2
Group 3
Participants will receive Ad26.ZEBOV, MVA-BN-Filo (Day 1/Day 29) or placebo (Day 1/Day 29) followed by a subset of participants who received Ad26.ZEBOV and MVA-BN-Filo (at selected sites) will receive Ad26.ZEBOV as third vaccination and who received placebo will receive placebo as third vaccination (at least 1 year post prime vaccination).
Participants will receive Ad26.ZEBOV, MVA-BN-Filo (Day 1/Day 57) or placebo (Day 1/Day 57) followed by a subset of participants who received Ad26.ZEBOV and MVA-BN-Filo (at selected sites) will receive Ad26.ZEBOV as third vaccination and who received placebo will receive placebo as third vaccination (at least 1 year post prime vaccination).
Participants will receive Ad26.ZEBOV, MVA-BN-Filo (Day 1/Day 85) or placebo (Day 1/Day 85)