Evidence map›Paper›PMID 31362695›Full record

ArticleBMC immunology2019

Identification of adjuvants for clinical trials performed with Plasmodium falciparum AMA1 in rabbits.

Sumera Younis, Bart W Faber, Clemens H M Kocken, Edmond J Remarque

Open access · goldAbstract read
In one paragraph

Article in BMC immunology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.7field-weighted citation impact, top 26% 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.

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

2 citing papers in PubMed, 6 citations in OpenAlex.

  1. A new candidate epitope-based vaccine against PspA PhtD ofFrontiers in cellular and infection microbiology · 2023
    Article
  2. Review
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

4 authors at 1 institution in 1 country.

Sumera YounisBiomedical Primate Research Centre, Department of Parasitology, Rijswijk, The Netherlands.
Bart W FaberBiomedical Primate Research Centre, Department of Parasitology, Rijswijk, The Netherlands.
Clemens H M KockenBiomedical Primate Research Centre, Department of Parasitology, Rijswijk, The Netherlands.
Edmond J RemarqueBiomedical Primate Research Centre, Department of Parasitology, Rijswijk, The Netherlands. ed.remarque@gmail.com.
Biomedical Primate Research Centre · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn this study, seven adjuvants were compared for use with Plasmodium falciparum DiCo-Apical Membrane Antigen 1 (Pf-DiCo-AMA1), with the aim to identify an ideal adjuvant which yields high antibody titres and potentially broadens the responses in clinical trials. The following adjuvant formulations were evaluated: SE, SE-GLA, Liposomes, Liposomes-GLA, CoVaccine HT™, ImSaVac-P and ImSaVac-P o/w. The study was performed in rabbits, which were immunized with FVO-AMA1 in combination with one of the seven adjuvants. Antibody levels (humoral responses) and functional activity of the antibodies induced against malaria vaccine candidate AMA1 were evaluated. Thus, in this study the ideal adjuvant is expected to induce high functional antibody levels, a long-lived response, and a broad cross-strain activity.

resultsAMA1 formulated in all adjuvants was immunogenic. However, the magnitude of the immune responses differed between the seven adjuvants. The highest IgG levels were observed for the CoVaccine HT™ group, this was statistically significant for all four AMA1 variants versus all other adjuvant groups. No differences were observed in the breadth of the humoral response, i.e., increased recognition of AMA1 variants. Also, Growth Inhibition Activity (GIA) for both Plasmodium falciparum strains (FCR3 - homologous to FVO AMA1 protein and NF54 - heterologous to FVO AMA1 protein) were significantly higher in the CoVaccine HT™ group as compared to the other adjuvant groups.

conclusionsIn brief, all seven vaccine - adjuvant formulations were immunogenic. The magnitude of the immune responses differed between the seven adjuvants. No statistically significant differences were observed in the breadth of the humoral response, nor in longevity of the response. Nevertheless, AMA1 formulated in CoVaccine HT™ appeared as the best adjuvant for use in clinical trials.

Indexed as

Adjuvants, ImmunologicAnimalsAntibodies, ProtozoanAntibody FormationAntigens, ProtozoanDisease Models, AnimalImmunizationImmunoglobulin GMalaria, FalciparumMalaria VaccinesMembrane ProteinsPlasmodium falciparumProtozoan ProteinsRabbitsAdjuvants, ImmunologicAntibodies, ProtozoanAntigens, Protozoanapical membrane antigen I, PlasmodiumImmunoglobulin GMalaria VaccinesMembrane ProteinsProtozoan ProteinsAdjuvantsAMA1CoVaccine HT™ImSaVac-PLiposomesLiposomes-GLAPlasmodium falciparumRabbitsSESE-GLA

Identifiers

PMID31362695
PMCPMC6664700
OpenAlexW2965943355

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.