Evidence map›Paper›PMID 29920563›Full record

ArticlePloS one2018

Effect of genetic background and delivery route on the preclinical properties of a live attenuated RSV vaccine.

Rachel Groppo, Joshua DiNapoli, Kwang Il Jeong, Michael Kishko, Nicholas Jackson, Harold Kleanthous, Simon Delagrave, Linong Zhang, Mark Parrington

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

9 citing papers in PubMed, 10 citations in OpenAlex.

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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

9 authors at 2 institutions in 1 country.

Rachel GroppoResearch and non-clinical safety, Sanofi Pasteur, Cambridge, Massachusetts, United States of America.ORCID 0000-0002-7471-3295
Joshua DiNapoliFluNeXt, Sanofi Pasteur, Cambridge, Massachusetts, United States of America.
Kwang Il JeongResearch and non-clinical safety, Sanofi Pasteur, Cambridge, Massachusetts, United States of America.
Michael KishkoResearch and non-clinical safety, Sanofi Pasteur, Cambridge, Massachusetts, United States of America.
Nicholas JacksonResearch and non-clinical safety, Sanofi Pasteur, Cambridge, Massachusetts, United States of America.
Harold KleanthousFluNeXt, Sanofi Pasteur, Cambridge, Massachusetts, United States of America.
Simon DelagraveResearch and non-clinical safety, Sanofi Pasteur, Cambridge, Massachusetts, United States of America.
Linong ZhangResearch and non-clinical safety, Sanofi Pasteur, Cambridge, Massachusetts, United States of America.
Mark ParringtonExternal R&D, Sanofi Pasteur, Cambridge, Massachusetts, United States of America.
Sanofi (United States) · USAVEO Oncology (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A safe and effective vaccine against RSV remains an important unmet public health need. Intranasally (IN) delivered live-attenuated vaccines represent the most extensively studied approach for immunization of RSV-naïve infants and children, however, achieving an effective balance of attenuation and immunogenicity has proven challenging. Here we report pre-clinical immunogenicity and efficacy data utilizing a live-attenuated vaccine candidate, RGΔM2-2, which was obtained by deleting the M2-2 open reading frame from the genome of the MSA1 clinical isolate. Intramuscular (IM) administration of RGΔM2-2 in cotton rats induced immunity and protective efficacy that was comparable to that induced by intranasal (IN) immunization. In contrast, the protective efficacy of RGΔM2-2 delivered by the IM route to African green monkeys was substantially reduced as compared to the efficacy following IN administration, despite comparable levels of serum neutralizing antibodies. This result suggests that mucosal immunity may play an important role in RSV protection. The RGΔM2-2 vaccine also demonstrated different attenuation profiles when tested in cotton rats, non-human primates, and a human airway epithelial (HAE) cell model. The data suggest RGΔM2-2 is less attenuated than a similarly designed vaccine candidate constructed on the A2 genetic background. These findings have important implications with regard to both the design and the preclinical safety testing of live-attenuated vaccines.

Indexed as

ImmunizationAdministration, IntranasalAnimalsChlorocebus aethiopsEpithelial CellsGenome, ViralHumansInjections, IntramuscularOpen Reading FramesRespiratory Syncytial VirusesRespiratory Syncytial Virus InfectionsRespiratory Syncytial Virus VaccinesSigmodontinaeVaccines, AttenuatedRespiratory Syncytial Virus VaccinesVaccines, Attenuated

Identifiers

PMID29920563
PMCPMC6007926
OpenAlexW2809241303

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.