A Study of a 2-dose Ebola Vaccine Regimen of Ad26.ZEBOV Followed by MVA-BN-Filo in Healthy Pregnant Women

Healthy Clinical Trial

— INGABO  

Official title:

A Phase 3 Open-label Randomized Clinical Trial to Evaluate the Safety, Reactogenicity and Immunogenicity of a 2-dose Ebola Vaccine Regimen of Ad26.ZEBOV Followed by MVA-BN-Filo in Healthy Pregnant Women

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04556526
• Other study ID #: CR108739
• Secondary ID: VAC52150EBL3010
• Status: Completed
• Phase: Phase 3
• Start date: October 5, 2020
• Est. completion date: March 2, 2023

Study information

• Verified date: May 2023
• Source: Janssen Vaccines & Prevention B.V.
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is: a) to assess adverse maternal/fetal outcomes in pregnant women randomized to receive the 2- dose Ebola vaccine regimen (Ad26.ZEBOV, MVA-BN-Filo [Group A]) and in control women (unvaccinated pregnant women [Group B]); and b) to assess adverse neonatal/infant outcomes in neonates/infants born to women randomized to receive the 2-dose Ebola vaccine regimen (Ad26.ZEBOV, MVA-BN-Filo [Group A]) and in neonates/infants born to control women (unvaccinated during pregnancy [Group B]).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 4031
• Est. completion date: March 2, 2023
• Est. primary completion date: March 2, 2023
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Healthy on the basis of physical examination, medical history, obstetric history, and vital signs performed at screening

• Healthy on the basis of clinical laboratory tests performed at screening

• Confirmed singleton pregnancy by positive urine human chorionic gonadotropin (HCG) and ultrasound at time of screening and informed consent, and reconfirmed pregnancy via ultrasound at Randomization/Day 1

• Residing within catchment area of the study site

• Evidence of normal progress of gestation prior to Randomization (Day 1) based on obstetric evaluation (including obstetric history, obstetric examination and fetal ultrasound)

Exclusion Criteria:

• History of Ebola Virus Disease (EVD) (self-declared or laboratory confirmed)

• Has received any experimental candidate Ad26- or MVA-based vaccine in the past

• Known allergy or history of anaphylaxis or other serious adverse reactions to vaccines or vaccine products (including any of the constituents of the study vaccines [for example, polysorbate 80, ethylenediaminetetraacetic acid (EDTA) or L-histidine for Ad26.ZEBOV vaccine; tris (hydroxymethyl)-amino methane (THAM) for MVA-BN-Filo vaccine]), including known allergy to egg, egg products, chicken proteins and aminoglycosides

• Participant with acute illness (this does not include minor illnesses such as diarrhea or mild upper respiratory tract infection) or body temperature greater than or equal to (>=)38.0ºC on Day 1 will be excluded from enrollment at that time but may be rescheduled for enrollment at a later date

• During the 6 weeks prior to screening, have had any of (a) confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (COVID-19) infection (test positive), OR (b) suspected SARS-CoV-2 infection (clinical features without documented test results), OR (c) close contact with a person with known or suspected SARS-CoV-2 infection

• Obstetric history including: a. >= 2 consecutive spontaneous abortions, b. history of pre-eclampsia or eclampsia, c. rhesus negative multigravida, d. grand multigravida (greater than [>] 5 previous pregnancies, e. previous late still birth (defined as loss of pregnancy at any time after 28 weeks gestation), f. previous low birth weight baby or premature delivery (defined as a delivery before 37 weeks gestation), g. previous neonatal death (defined as death of an infant within the first 28 days of life), h. previous delivery of an infant with a known or suspected genetic or chromosomal abnormality, i. history of other significant pregnancy-related or neonatal complications judged likely to affect the safety of the mother or infant or to significantly compromise the endpoint data collected

Related Conditions & MeSH terms

• Healthy

Intervention

Biological:
• Ad26.ZEBOV
Participants in Group A will receive 0.5 mL IM injection of Ad26.ZEBOV vaccine. Participants in Group B will receive Ad26.ZEBOV 6 weeks after delivery/termination of pregnancy.
• MVA-BN-Filo
Participants in Group A will receive 0.5 mL IM injection of MVA-BN-Filo vaccine. Participants in Group B will receive MVA-BN-Filo 6 weeks after delivery/termination of pregnancy.

Locations

Country	Name	City	State
Rwanda	Gihundwe District Hospital	Cuangugu
Rwanda	Gisenyi Hospital	Gysenyi
Rwanda	Center for Family Health Research/Project San Francisco	Kigali

Sponsors (4)

Lead Sponsor	Collaborator
Janssen Vaccines & Prevention B.V.	Center for Family Health Research (CFHR), Coalition for Epidemic Preparedness Innovations, Emory University

Country where clinical trial is conducted

Rwanda, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Percentage of Participants with Maternal Deaths	Percentage of participants with maternal deaths will be reported. Maternal death is the death of a woman while pregnant or within 42 days of termination of pregnancy, irrespective of the duration and site of the pregnancy, from any cause related to or aggravated by the pregnancy or its management but not from accidental or incidental causes.	Up to 6 weeks post-completion/termination of pregnancy
Primary	Percentage of Participants with Spontaneous Abortion	Percentage of participants with spontaneous abortion will be reported. Spontaneous abortion is a pregnancy loss that occurs up to 21 weeks 6 days of gestation.	Up to 6 weeks post-completion/termination of pregnancy
Primary	Percentage of Participants with Stillbirth	Percentage of participants with stillbirth will be reported. Stillbirth is fetal death at or after 21 weeks 6 days of gestation.	Up to 6 weeks post-completion/termination of pregnancy
Primary	Percentage of Participants on the Pathways to Preterm Birth	Percentage of participants on the pathways to preterm birth will be reported. Pathways to preterm birth is a clinical syndrome characterized by any one or some combination of the following four pathways: 1) Premature preterm rupture of membranes, 2) Preterm labor, 3) Insufficient cervix, 4) Provider- initiated preterm birth.	Up to 6 weeks post-completion/termination of pregnancy
Primary	Percentage of Participants with Pre-eclampsia/ eclampsia	Percentage of participants with pre-eclampsia/ eclampsia will be reported. Pre-eclampsia is new-onset or worsening of existing hypertension with new-onset proteinuria after 20 weeks gestation.	Up to 6 weeks post-completion/termination of pregnancy
Primary	Percentage of Participants with Antenatal Bleeding	Percentage of participants with antenatal bleeding will be reported. Antenatal bleeding is vaginal or suspected intrauterine, intraperitoneal, or retroperitoneal bleeding in the second or third trimester of pregnancy.	Up to 6 weeks post-completion/termination of pregnancy
Primary	Percentage of Participants with Postpartum Hemorrhage	Percentage of participants with postpartum hemorrhage will be reported. Postpartum hemorrhage is genital bleeding after delivery estimated at 1000 ml or more, or leading to hypotension or blood transfusion, or leading to severe maternal outcome (maternal death or maternal near miss) as defined by World Health Organization (WHO).	Up to 6 weeks post-completion/termination of pregnancy
Primary	Percentage of Newborns with Major Congenital Malformations born to Participants	Percentage of newborns with major congenital malformations born to participants will be reported. Major congenital malformations are abnormalities of body structure or function that are present at birth and are of prenatal origin. Major congenital malformations include structural changes that have significant medical, social or cosmetic consequences for the affected individual, and typically require medical intervention (for example, cleft lip and spina bifida).	At birth
Primary	Percentage of Newborns Small for Gestational age (SGA) born to Participants	Percentage of newborns small for gestational age (SGA) born to participants will be reported. Small for gestational age (SGA) means newborns that are smaller in size than normal for the gestational age (weight below the tenth percentile for the gestational age using Rwandan standards).	At birth
Primary	Percentage of Newborns with Low Birth Weight born to Participants	Percentage of newborns with low birth weight born to participants will be reported. Low birth weight newborns are babies, weighing less than 2500 grams at birth (regardless of child's sex).	At birth
Primary	Percentage of Newborns with Preterm Birth born to Participants	Percentage of newborns with preterm birth born to participants will be reported. Preterm birth means neonates born at less than 37 weeks' gestation.	At birth
Primary	Percentage of Neonatal Deaths in Neonates Born to Participants	Percentage of neonatal deaths in neonates born to participants will be reported. Neonatal deaths mean neonate dying in the first 28 days of life.	Up to 28 days
Primary	Percentage of Infants (of Participants) who Fail to Thrive	Percentage of infants (of participants) who fail to thrive will be reported. Failure to thrive means weight for age deceleration through at least 2 centile spaces on growth chart of infants or as defined according to Rwandan standards.	From birth up to 14 weeks of age
Secondary	Percentage of Participants (Pregnant Women) with Serious Adverse Events (SAEs) for Group A and B	A SAE is any adverse event (AE) that results in: death, persistent or significant disability/incapacity, requires inpatient hospitalization or prolongation of existing hospitalization, is life-threatening experience, is a congenital anomaly/birth defect and may jeopardize participant and/or may require medical or surgical intervention to prevent one of the outcomes listed above.	Up to 6 weeks post-partum or post-pregnancy termination, whichever occurs earlier
Secondary	Percentage of Participants (Pregnant Women) with SAEs for Subset of Group A and B	A SAE is any AE that results in: death, persistent or significant disability/incapacity, requires inpatient hospitalization or prolongation of existing hospitalization, is life-threatening experience, is a congenital anomaly/birth defect and may jeopardize participant and/or may require medical or surgical intervention to prevent one of the outcomes listed above	Up to 365 days or 1 year post dose
Secondary	Percentage of Newborns (Born to Participants) with SAEs	A SAE is any adverse event (AE) that results in: death, persistent or significant disability/incapacity, requires inpatient hospitalization or prolongation of existing hospitalization, is life-threatening experience, is a congenital anomaly/birth defect and may jeopardize participant and/or may require medical or surgical intervention to prevent one of the outcomes listed above.	From birth up to 14 weeks of age
Secondary	Percentage of Participants with Solicited Local and Systemic Adverse Events (AEs)	Solicited local AEs: pain/tenderness, erythema, and induration/swelling. Solicited systemic AEs: headache, fatigue, myalgia, arthralgia, chills and fever.	7 Days after each vaccination (up to Day 64)
Secondary	Percentage of Participants with Unsolicited AEs	Unsolicited AEs will include all AEs for which the participant is not specifically questioned in the participant diary.	28 Days after each vaccination (up to Day 85)
Secondary	Percentage of Participants with Normal Delivery	Percentage of participants with normal delivery will be reported.	Up to 6 weeks post-completion/termination of pregnancy
Secondary	Percentage of Participants with Caesarian Section	Percentage of participants with caesarian section will be reported.	Up to 6 weeks post-completion/termination of pregnancy
Secondary	Percentage of Participants with Anti-Ebola virus (EBOV) Glycoprotein (GP) Binding Antibodies	Blood samples will be collected for analysis of binding antibodies against EBOV GP using Filovirus Animal Non-Clinical Group (FANG) enzyme-linked immunosorbent assay (ELISA).	Day 1 (pre-dose 1), Day 78 (21 days post-dose 2), at delivery (Group A subset only), and 1 year post-dose 1 (Day 365)
Secondary	Percentage of Infants (Born to Participants) with Anti-Ebola virus (EBOV) Glycoprotein (GP) Binding Antibodies	Blood samples will be collected from infants at 14 weeks of age for analysis of binding antibodies against EBOV GP using Filovirus Animal Non-Clinical Group (FANG) enzyme-linked immunosorbent assay (ELISA).	From birth up to 14 weeks of age