Evidence map›Paper›PMID 22508415›Full record

ReviewHuman vaccines & immunotherapeutics2012

Can growth inhibition assays (GIA) predict blood-stage malaria vaccine efficacy?

Christopher J A Duncan, Adrian V S Hill, Ruth D Ellis

Abstract readReview
In one paragraph

Review in Human vaccines & immunotherapeutics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

49 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  7. Article
  8. Review
  9. Article
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  11. Article
  12. Malaria Genomics, Vaccine Development, and Microbiome.Pathogens (Basel, Switzerland) · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Article
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  18. TheF1000Research · 2021
    Article
  19. Article
  20. Immunization with full-lengthNPJ vaccines · 2020
    Article
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

3 authors.

Christopher J A DuncanSir William Dunn School of Pathology, University of Oxford, Oxford, UK. chrisduncan@doctors.net.uk
Adrian V S Hill
Ruth D Ellis

Funding

Malaria Vaccine: AMA1-C1ZIAAI001001 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DUFFY, PATRICK · 2009 to 2012
$5.1M
Intramural NIH HHSWellcome Trust 090532
6 · The paper itself

Abstract

An effective vaccine against P. falciparum malaria remains a global health priority. Blood-stage vaccines are an important component of this effort, with some indications of recent progress. However only a fraction of potential blood-stage antigens have been tested, highlighting a critical need for efficient down-selection strategies. Functional in vitro assays such as the growth/invasion inhibition assays (GIA) are widely used, but it is unclear whether GIA activity correlates with protection or predicts vaccine efficacy. While preliminary data in controlled human malaria infection (CHMI) studies indicate a possible association between in vitro and in vivo parasite growth rates, there have been conflicting results of immunoepidemiology studies, where associations with exposure rather than protection have been observed. In addition, GIA-interfering antibodies in vaccinated individuals from endemic regions may limit assay sensitivity in heavily malaria-exposed populations. More work is needed to establish the utility of GIA for blood-stage vaccine development.

Indexed as

Biological AssayHumansMalaria, FalciparumMalaria VaccinesMalaria Vaccines

Identifiers

PMID22508415
PMCPMC3495712

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.