Evidence map›Paper›PMID 34768231›Full record

ArticleJournal of clinical virology : the official publication of the Pan American Society for Clinical Virology2021

Prospective evaluation of ID NOW COVID-19 assay used as point-of-care test in an emergency department.

Jean-Claude NguyenVan, Camille Gerlier, Benoît Pilmis, Assaf Mizrahi, Gauthier Péan de Ponfilly, Amir Khaterchi, Vincent Enouf, Olivier Ganansia, Alban Le Monnier

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04785898 (Diagnostic Performance of the ID Now™ COVID-19 Screening Test Versus Simplexa™ COVID-19 Direct Assay in Off-site Biology in Emergency Rooms for COVID-19 Screenin), which is not on this map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 15% 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.

NCT04785898 nacompletednot on this map

Diagnostic Performance of the ID Now™ COVID-19 Screening Test Versus Simplexa™ COVID-19 Direct Assay in Off-site Biology in Emergency Rooms for COVID-19 Screenin

TypeinterventionalSponsorFondation Hôpital Saint-JosephRan2020 to 2022Enrolled1,265ConditionsCovid19ArmsID Now™ COVID-19 Screening Test
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 26 citations in OpenAlex.

  1. Trial
  2. Transformative impact of point-of-care testing in critical care.World journal of critical care medicine · 2025
    Article
  3. Article
  4. Review
  5. Article
  6. Recent progress on rapid diagnosis of COVID-19 by point-of-care testing platforms.Chinese chemical letters = Zhongguo hua xue kuai bao · 2023
    Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Recent advances in PCR-free nucleic acid detection for SARS-COV-2.Frontiers in bioengineering and biotechnology · 2022
    Review
  13. 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

9 authors at 3 institutions in 1 country.

Jean-Claude NguyenVanService de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France. Electronic address: jcnguyen@ghpsj.fr.
Camille GerlierService des Urgences, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
Benoît PilmisEquipe Mobile de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
Assaf MizrahiService de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
Gauthier Péan de PonfillyService de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
Amir KhaterchiService de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
Vincent EnoufCentre National de Référence des Virus Respiratoires, Institut Pasteur, Paris, France.
Olivier GanansiaService des Urgences, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
Alban Le MonnierService de Microbiologie Clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
Hôpital Paris Saint-Joseph · FRInstitut Pasteur · FRUniversité Paris-Saclay · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRapid testing for COVID-19 has been clearly identified as an essential component of the strategy to control the SARS-CoV-2 epidemic, worldwide. The ID NOW COVID-19 assay is a simple, user-friendly, rapid molecular biology test based on nicking and extension amplification reaction (NEAR).

objectivesThe aim of this study was to evaluate the ID NOW COVID-19 assay when used as a point-of-care test (POCT) in our Emergency Department (ED). TYPE OF STUDY: This prospective study enrolled 395 consecutive patients; paired nasopharyngeal swabs were collected from each study participant. The first swab was tested with the ID NOW COVID-19 assay at the point-of-care by ED nurses. The second swab was diluted in viral transport medium (VTM) and sent to the clinical microbiology department for analysis by both the RT-PCR Simplexa test COVID-19 Direct assay as the study reference method, and the ID NOW COVID-19 assay performed in the laboratory.

resultsNasopharyngeal swabs directly tested with the ID NOW COVID-19 assay yielded a sensitivity, specificity, PPV and NPV of 98.0%, 97.5%, 96.2% and 98.7%, respectively, in comparison with the RT-PCR study reference assay. When the ID NOW COVID-19 assay was performed in the laboratory using the VTM samples, the sensitivity decreased to 62.5% and the NPV to 79.7%. Three false negative test results were reported with the ID NOW COVID-19 assay when performed using undiluted swabs directly in the ED; these results were obtained from patients with elevated CT values (> 30).

conclusionWe demonstrated that the ID NOW COVID-19 assay, performed as a point of care test in the ED using dry swabs, provides a rapid and reliable alternative to laboratory-based RT-PCR methods.

Indexed as

COVID-19COVID-19 TestingEmergency Service, HospitalHumansNasopharynxPoint-of-Care TestingProspective StudiesSARS-CoV-2Sensitivity and SpecificityCOVID-19Emergency departmentID NOW COVID-19Isothermal amplificationPoint-of-care testSARS-CoV-2

Identifiers

PMID34768231
PMCPMC8556064
OpenAlexW3210760546

What OpenQuestion holds

Textmetadata
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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.