Evidence map›Paper›PMID 33780551›Full record

ReviewEuropean journal of haematology2021

Clinical predictors of SARS-CoV-2 neutralizing antibody titers in COVID-19 convalescents: Implications for convalescent plasma donor recruitment.

Daniele Focosi, Massimo Franchini

Abstract readReview
In one paragraph

Review in European journal of haematology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

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

  1. Pooled it
  2. Trial
  3. COVID-19 therapeutics.Clinical microbiology reviews · 2024
    Review
  4. Article
  5. Assessment of the impact of pathogen reduction technologies on the neutralizing activity of COVID-19 convalescent plasma.Transfusion and apheresis science : official journal of the World Apheresis Association : official journal of the European Society for Haemapheresis · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Correlation between ABO blood group and neutralizing anti-SARS-CoV-2 antibody titers in convalescent plasma donations.Transfusion clinique et biologique : journal de la Societe francaise de transfusion sanguine · 2022
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Patient-blood management for COVID19 convalescent plasma therapy: relevance of affinity and donor-recipient differences in concentration of neutralizing antibodies.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2021
    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

2 authors.

Daniele FocosiNorth-Western Tuscany Blood Bank, Pisa University Hospital, Pisa, Italy.ORCID https://orcid.org/0000-0001-8811-195X
Massimo FranchiniDepartment of Hematology and Transfusion Medicine, Carlo Poma Hospital, Mantua, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

While COVID-19 convalescent plasma (CCP) efficacy is still under investigation in randomized controlled trials (RCT), CCP collections continue worldwide with largely variable criteria. Since it is well known that only a minority of patients develop high-titer neutralizing antibodies (nAb), as assessed by the viral neutralization tests (VNT), strategies to maximize cost-effectiveness of CCP collection are urgently needed. A growing amount of the population is having exposure to the virus and is hence becoming a candidate CCP donor. Laboratory screening with high-throughput serology has good correlations with the VNT titer, but upstream screening using clinical surrogates would be advisable. We review here the existing literature on clinical predictors of high-titer nAb. Older age, male sex, and hospitalization are the main proxies of high VNT and should drive CCP donor recruitment.

Indexed as

ConvalescenceAntibodies, NeutralizingBlood DonorsCOVID-19COVID-19 SerotherapyFemaleHumansImmunization, PassiveMaleNeutralization TestsAntibodies, Neutralizingclinical predictorsconvalescent plasmaCOVID-19neutralizing antibodiesSARS-CoV-2viral neutralization tests

Identifiers

PMID33780551
PMCPMC8250676

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.