Evidence map›Paper›PMID 35725488›Full record

ArticleTrials2022

Safety, reactogenicity, and immunogenicity of a 2-dose Ebola vaccine regimen of Ad26.ZEBOV followed by MVA-BN-Filo in healthy adult pregnant women: study protocol for a phase 3 open-label randomized controlled trial.

Etienne Karita, Julien Nyombayire, Rosine Ingabire, Amelia Mazzei, Tyronza Sharkey, Jeannine Mukamuyango, Susan Allen, Amanda Tichacek, Rachel Parker, Frances Priddy and 8 more

Registry-linked trialOpen access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in Trials, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04556526 (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), which is not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.5field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04556526 phase3completednot on this map

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

TypeinterventionalSponsorJanssen Vaccines & Prevention B.V.Ran2020 to 2023Enrolled4,031ConditionsHealthyArmsAd26.ZEBOV, MVA-BN-Filo
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 15 citations in OpenAlex.

  1. Trial
  2. Article
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  4. Developing the next-generation of adenoviral vector vaccines.Human vaccines & immunotherapeutics · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

18 authors at 6 institutions in 3 countries.

Etienne KaritaRwanda Zambia Health Research Group, Center for Family Health Research/Projet San Francisco, Kigali, Rwanda.
Julien NyombayireRwanda Zambia Health Research Group, Center for Family Health Research/Projet San Francisco, Kigali, Rwanda.
Rosine IngabireRwanda Zambia Health Research Group, Center for Family Health Research/Projet San Francisco, Kigali, Rwanda.
Amelia MazzeiRwanda Zambia Health Research Group, Center for Family Health Research/Projet San Francisco, Kigali, Rwanda.
Tyronza SharkeyRwanda Zambia Health Research Group, Center for Family Health Research/Projet San Francisco, Kigali, Rwanda.
Jeannine MukamuyangoRwanda Zambia Health Research Group, Center for Family Health Research/Projet San Francisco, Kigali, Rwanda.
Susan AllenRwanda Zambia Health Research Group, Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA.
Amanda TichacekRwanda Zambia Health Research Group, Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA.
Rachel ParkerRwanda Zambia Health Research Group, Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA.
Frances Priddy, Madison, USA.
Felix SayinzogaRwanda Biomedical Center, Kigali, Rwanda.
Sabin NsanzimanaRwanda Biomedical Center, Kigali, Rwanda.
Cynthia RobinsonJanssen Vaccines and Prevention, Leiden, the Netherlands.
Michael KatwereJanssen Vaccines and Prevention, Leiden, the Netherlands.
Dickson AnumendemJanssen Vaccines and Prevention, Leiden, the Netherlands.
Maarten LeyssenJanssen Vaccines and Prevention, Leiden, the Netherlands.
Malinda SchaeferDepartment of Obstetrics, Gynecology and Reproductive Sciences, Division of Maternal Fetal Medicine, University of Pittsburgh Magee-Women's Hospital, Pittsburgh, PA, USA.
Kristin M WallRwanda Zambia Health Research Group, Department of Pathology & Laboratory Medicine, School of Medicine, Emory University, Atlanta, GA, USA. kmwall@emory.edu.
Rwanda Zambia HIV Research Group · RWJanssen (Netherlands) · NLEmory University · USRwanda Biomedical Center · RWMadison Group (United States) · USMagee-Womens Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRisks to mother and fetus following Ebola virus infection are very high. Evaluation of safety and immunogenicity of non-replicating Ebola vaccine candidates is a priority for use in pregnant women. This is the protocol for a randomized, open-label, single-center phase 3 clinical trial of the safety, reactogenicity, and immunogenicity of the 2-dose Ebola vaccine regimen in healthy adult pregnant women. This 2-dose regimen has been shown to be safe, judged effective, and approved in non-pregnant populations.

methodsA total of 2000 adult (≥ 18 years of age) pregnant women will be enrolled from antenatal care facilities in Western Rwanda and randomized (1:1) to receive the 2-dose Ebola vaccine regimen (Ad26.ZEBOV, MVA-BN-Filo (group A)) or control (unvaccinated pregnant women (group B)). The primary objectives are to (1) assess adverse maternal/fetal outcomes in randomized pregnant women up to 1.5 months after delivery and (2) assess adverse neonatal/infant outcomes in neonates/infants born to randomized women up to 3.5 months after birth. The frequency and relatedness of all serious adverse events in women and newborns from randomization or birth, respectively, until study end will be reported. The reactogenicity and unsolicited adverse events of the 2-dose Ebola vaccine regimen in all vaccinated pregnant women (group A) will be reported. We will also assess the immunogenicity of the 2-dose Ebola vaccine regimen in 150 pregnant women who are anticipated to receive both vaccine doses within the course of their pregnancy (a subset of the 1000 pregnant vaccinated women from group A) compared to 150 non-pregnant women vaccinated after delivery (a subset of group B). The persistence of maternal antibodies in 75 infants born to women from the group A subset will be assessed. Exploratory analyses include assessment of acceptability of the 2-dose Ebola vaccine regimen among group A and assessment of maternal antibodies in breast milk in 50 women from group A and 10 controls (women from group B prior to vaccination). DISCUSSION: This study is intended to support a label variation to relax restrictions on use in pregnant women, a vulnerable population with high medical need.

trial registrationClinicaltrials.gov NCT04556526 . September 21, 2020.

Indexed as

Ebola VaccinesHemorrhagic Fever, EbolaAdultClinical Trials, Phase III as TopicFemaleHumansInfant, NewbornPregnancyPregnant PeopleRandomized Controlled Trials as TopicVaccinationEbola VaccinesEbola virusImmunogenicityPregnancyReactogenicityVaccine safety

Identifiers

PMID35725488
PMCPMC9207821
OpenAlexW4283168042

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.