Evidence map›Paper›PMID 33452828›Full record

ArticleTransfusion2021

Presence and short-term persistence of SARS-CoV-2 neutralizing antibodies in COVID-19 convalescent plasma donors.

Kyle Annen, Thomas E Morrison, Melkon G DomBourian, Mary K McCarthy, Leah Huey, Patricia A Merkel, Gillian Andersen, Eileen Schwartz, Vijaya Knight

Open access · bronzeAbstract read
In one paragraph

Article in Transfusion, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.7field-weighted citation impact, top 27% 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

10 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
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  4. A quantitative assay for detection of SARS-CoV-2 neutralizing antibodies.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2022
    Article
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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.

Kyle AnnenDepartment of Pathology and Laboratory Medicine, University of Colorado School of Medicine and Children's Hospital, Aurora, Colorado, USA.ORCID 0000-0002-7192-5057
Thomas E MorrisonDepartment of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Melkon G DomBourianDepartment of Pathology and Laboratory Medicine, University of Colorado School of Medicine and Children's Hospital, Aurora, Colorado, USA.
Mary K McCarthyDepartment of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado, USA.
Leah HueyDepartment of Pediatrics, Section of Allergy and Immunology, University of Colorado School of Medicine and Children's Hospital, Aurora, Colorado, USA.
Patricia A MerkelDepartment of Pediatrics, Section of Allergy and Immunology, University of Colorado School of Medicine and Children's Hospital, Aurora, Colorado, USA.
Gillian AndersenDepartment of Pathology and Laboratory Medicine, University of Colorado School of Medicine and Children's Hospital, Aurora, Colorado, USA.
Eileen SchwartzDepartment of Pathology and Laboratory Medicine, University of Colorado School of Medicine and Children's Hospital, Aurora, Colorado, USA.
Vijaya KnightDepartment of Pediatrics, Section of Allergy and Immunology, University of Colorado School of Medicine and Children's Hospital, Aurora, Colorado, USA.
University of Colorado Hospital · USUniversity of Colorado Denver · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn March 2020, the Food and Drug Administration (FDA) approved use of COVID-19 convalescent plasma (CCP) as an investigational new drug for treatment of COVID-19. Since then, collection of CCP from COVID-19-recovered patients has been implemented in donor centers nationwide. Children's Hospital Colorado rapidly put into practice a CCP collection protocol, necessitating development and implementation of assays to evaluate SARS-CoV-2 antibodies in CCP units. STUDY DESIGN AND

methodsWe evaluated 87 units of CCP collected from 36 donors over two to four sequential donations using both antigen-binding assays for SARS-CoV-2 nucleoprotein and spike antigens and a live virus focus reduction neutralization test (FRNT

resultsOur data show that the majority of donors (83%) had a FRNT

conclusionThe correlation of neutralizing activity and antigen-binding assays is necessary to qualify CCP for therapeutic use. Since SARS-CoV-2 antibody levels decline in a percentage of donors, and such a decline is not detectable by current qualitative assays implemented in many laboratories, robust, quantitative assays are necessary to evaluate CCP units best suited for therapeutic infusion in COVID-19 patients.

Indexed as

Blood DonorsConvalescenceAnimalsAntibodies, NeutralizingAntibodies, ViralChlorocebus aethiopsCOVID-19FemaleHumansMaleSARS-CoV-2Time FactorsVero CellsAntibodies, NeutralizingAntibodies, Viralblood component preparationsFFP transfusionRegulatory and QA

Identifiers

PMID33452828
PMCPMC8014809
OpenAlexW3123972627

What OpenQuestion holds

Textmetadata
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.