Evidence map›Paper›PMID 22275401›Full record

ArticleThe Journal of infectious diseases2012

Clinical assessment of a recombinant simian adenovirus ChAd63: a potent new vaccine vector.

Geraldine A O'Hara, Christopher J A Duncan, Katie J Ewer, Katharine A Collins, Sean C Elias, Fenella D Halstead, Anna L Goodman, Nick J Edwards, Arturo Reyes-Sandoval, Prudence Bird and 16 more

3 registry-linked trialsOpen access · greenAbstract readClinical Trial, Phase I
In one paragraph

Article in The Journal of infectious diseases, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 138 papers.

0numbers the graph read from it
0cells of the map it votes in
138citing papers in PubMed
19.9field-weighted citation impact, top 1% 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.

NCT00890019 phase1completednot on this map

A Phase I Study to Assess the Safety and Immunogenicity of New Malaria Vaccine Candidate AdCh63 ME-TRAP, Alone and With MVA ME-TRAP, Using a Prime-boost Delivery Schedule

TypeinterventionalSponsorUniversity of OxfordRan2007 to 2011Enrolled54ConditionsMalariaArmsAdCh63 ME-TRAP, AdCh63 ME-TRAP, MVA ME-TRAP
NCT02485912 phase1completednot on this mapstarted 2015, after this paper: background citation

A Phase Ib Safety and Immunogenicity Clinical Trial of Heterologous Prime-boost Immunisation With ChAd3-EBO Z and MVA-EBO Z in Healthy Senegalese Adult Volunteers Aged 18-50 Years.

TypeinterventionalSponsorUniversity of OxfordRan2015 to 2016Enrolled40ConditionsEbola Virus DiseaseArmsChAd3-EBO Z, MVA-EBO Z
NCT02925403 phase1 / phase2completednot on this mapstarted 2016, after this paper: background citation

A Phase Ib Randomised, Controlled, Single-blind Study to Assess the Safety, Immunogenicity of the Malaria Vaccine Candidate R21 With Matrix-M1 Adjuvant in West African Adult Volunteers

TypeinterventionalSponsorUniversity of OxfordRan2016 to 2017Enrolled13ConditionsMalariaArmsR21/Matrix-M1, Saline
3 · Its place in the literature

Who cites it

138 citing papers in PubMed, 218 citations in OpenAlex.

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  3. Safety and immunogenicity of ChAd63-KH vaccine in post-kala-azar dermal leishmaniasis patients in Sudan.Molecular therapy : the journal of the American Society of Gene Therapy · 2021
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  19. Developing the next-generation of adenoviral vector vaccines.Human vaccines & immunotherapeutics · 2025
    Review
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78 more citing papers are in PubMed but not listed here.

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

26 authors at 2 institutions in 1 country.

Geraldine A O'HaraCentre for Clinical Vaccinology and Tropical Medicine and the Jenner Institute Laboratories, University of Oxford, UK. geraldine.ohara@ndm.ox.ac.uk
Christopher J A Duncan
Katie J Ewer
Katharine A Collins
Sean C Elias
Fenella D Halstead
Anna L Goodman
Nick J Edwards
Arturo Reyes-Sandoval
Prudence Bird
Rosalind Rowland
Susanne H Sheehy
Ian D Poulton
Claire Hutchings
Stephen Todryk
Laura Andrews
Antonella Folgori
Eleanor Berrie
Sarah Moyle
Alfredo Nicosia
Stefano Colloca
Riccardo Cortese
Loredana Siani
Alison M Lawrie
Sarah C Gilbert
Adrian V S Hill
Jenner Institute · GBUniversity of Oxford · GB

Funding

Medical Research Council G0502018Wellcome Trust 090532Wellcome Trust 095540
6 · The paper itself

Abstract

backgroundVaccine development in human Plasmodium falciparum malaria has been hampered by the exceptionally high levels of CD8(+) T cells required for efficacy. Use of potently immunogenic human adenoviruses as vaccine vectors could overcome this problem, but these are limited by preexisting immunity to human adenoviruses.

methodsFrom 2007 to 2010, we undertook a phase I dose and route finding study of a new malaria vaccine, a replication-incompetent chimpanzee adenovirus 63 (ChAd63) encoding the preerythrocytic insert multiple epitope thrombospondin-related adhesion protein (ME-TRAP; n = 54 vaccinees) administered alone (n = 28) or with a modified vaccinia virus Ankara (MVA) ME-TRAP booster immunization 8 weeks later (n = 26). We observed an excellent safety profile. High levels of TRAP antigen-specific CD8(+) and CD4(+) T cells, as detected by interferon γ enzyme-linked immunospot assay and flow cytometry, were induced by intramuscular ChAd63 ME-TRAP immunization at doses of 5 × 10(10) viral particles and above. Subsequent administration of MVA ME-TRAP boosted responses to exceptionally high levels, and responses were maintained for up to 30 months postvaccination.

conclusionsThe ChAd63 chimpanzee adenovirus vector appears safe and highly immunogenic, providing a viable alternative to human adenoviruses as vaccine vectors for human use. CLINICAL TRIALS REGISTRATION: NCT00890019.

Indexed as

Adenoviruses, SimianAnimalsAntibodies, NeutralizingCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesEpitopesFlow CytometryHumansInterferon-gammaInterleukin-2Malaria, FalciparumMalaria VaccinesProtozoan ProteinsTumor Necrosis Factor-alphaVaccines, DNAAntibodies, NeutralizingEpitopesInterferon-gammaInterleukin-2Malaria VaccinesProtozoan Proteinsthrombospondin-related adhesive protein, protozoanTumor Necrosis Factor-alphaVaccines, DNA

Identifiers

PMID22275401
PMCPMC3274376
OpenAlexW2105595963

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.