Evidence map›Paper›PMID 33784412›Full record

Trial reportTransfusion2021

Convalescent plasma treatment of critically ill intensive care COVID-19 patients.

Monika Lindemann, Veronika Lenz, Dietmar Knop, Hannes Klump, Mira Alt, Ulrich W Aufderhorst, Leonie Schipper, Sina Schwarzkopf, Lara Meller, Nina Steckel and 13 more

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in Transfusion, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 19% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 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

23 authors at 6 institutions in 2 countries.

Monika LindemannInstitute for Transfusion Medicine, University Hospital Essen, Essen, Germany.ORCID 0000-0001-6708-4390
Veronika LenzInstitute for Transfusion Medicine, University Hospital Essen, Essen, Germany.
Dietmar KnopInstitute for Transfusion Medicine, University Hospital Essen, Essen, Germany.
Hannes KlumpInstitute for Transfusion Medicine, University Hospital Essen, Essen, Germany.
Mira AltDepartment of Infectious Diseases, West German Centre of Infectious Diseases, Universitätsmedizin Essen, University Duisburg-Essen, Essen, Germany.
Ulrich W AufderhorstDepartment of Infectious Diseases, West German Centre of Infectious Diseases, Universitätsmedizin Essen, University Duisburg-Essen, Essen, Germany.
Leonie SchipperDepartment of Infectious Diseases, West German Centre of Infectious Diseases, Universitätsmedizin Essen, University Duisburg-Essen, Essen, Germany.
Sina SchwarzkopfInstitute for Transfusion Medicine, University Hospital Essen, Essen, Germany.
Lara MellerInstitute for Transfusion Medicine, University Hospital Essen, Essen, Germany.
Nina SteckelDepartment of Bone Marrow Transplantation, West German Cancer Center, University Hospital Essen, Essen, Germany.
Michael KoldehoffDepartment of Bone Marrow Transplantation, West German Cancer Center, University Hospital Essen, Essen, Germany.
Andreas HeinoldInstitute for Transfusion Medicine, University Hospital Essen, Essen, Germany.
Falko M HeinemannInstitute for Transfusion Medicine, University Hospital Essen, Essen, Germany.
Johannes FischerInstitute for Transplant Diagnostics and Cell Therapeutics, Heinrich Heine University, Düsseldorf, Germany.
Gabriele HutschenreuterInstitute for Transfusion Medicine, University Hospital Aachen, Aachen, Germany.
Cornelius KnabbeInstitute for Laboratory and Transfusion Medicine, Heart and Diabetes Center NRW, Ruhr University Bochum, Bochum, Germany.
Sebastian DolffDepartment of Infectious Diseases, West German Centre of Infectious Diseases, Universitätsmedizin Essen, University Duisburg-Essen, Essen, Germany.ORCID 0000-0001-5549-1706
Thorsten BrennerDepartment of Anesthesiology and Intensive Care Medicine, University Hospital Essen, Essen, Germany.
Ulf DittmerInstitute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
Oliver WitzkeDepartment of Infectious Diseases, West German Centre of Infectious Diseases, Universitätsmedizin Essen, University Duisburg-Essen, Essen, Germany.
Frank HerbstreitDepartment of Anesthesiology and Intensive Care Medicine, University Hospital Essen, Essen, Germany.
Peter A HornInstitute for Transfusion Medicine, University Hospital Essen, Essen, Germany.
Adalbert KrawczykDepartment of Infectious Diseases, West German Centre of Infectious Diseases, Universitätsmedizin Essen, University Duisburg-Essen, Essen, Germany.ORCID 0000-0001-9502-9903
Institute for Transfusion Medicine · USUniversity of Duisburg-Essen · DEEssen University Hospital · DEHeart and Diabetes Center North Rhine-Westphalia · DEHeinrich Heine University Düsseldorf · DEUniversitätsklinikum Aachen · DE

Funding

Rudolf Ackermann StiftungStiftung Universitätsmedizin Essen
6 · The paper itself

Abstract

backgroundInfection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may be life-threatening, and specific antiviral drugs are currently not available. However, first studies indicated that convalescent plasma treatment might improve the clinical outcome of coronavirus disease 2019 (COVID-19) patients. STUDY DESIGN AND

methodsIn the current study, we investigated the efficacy of convalescent plasma treatment in eight COVID-19 patients. All the patients were critically ill, and seven of them were SARS-CoV-2 RNA-positive when starting treatment. SARS-CoV-2-specific antibodies were determined by an enzyme-linked immunosorbent assay detecting immunoglobulin G (IgG) antibodies against the S1 protein (Euroimmun), and the neutralizing titers were determined with a cell-culture-based neutralization assay. Plasma treatment started between 4 and 23 days after the onset of symptoms. The patients were usually treated by three plasma units, each containing 200-280 ml, which was applied at day 1, 3, and 5.

resultsDonor sera had on average lower IgG antibody ratios and neutralizing titers than the COVID-19 patients before the onset of treatment (median ratio of 5.8 and neutralizing titer of 1:320 vs. 7.5 and 1:640, respectively). Nevertheless, we observed an increase of antibody ratios in seven and of neutralizing titers in five patients after treatment; which did, however, not correlate with patient survival. Plasma treatment was effective in three patients, but five deceased despite treatment. Patients who deceased had a later treatment onset than survivors and finally died from multiple organ failure.

conclusionOur data indicate that the efficacy of convalescent plasma treatment of critically ill COVID-19 patients who already had developed strong antiviral immune responses and organ complications is limited.

Indexed as

Blood DonorsAdultAgedAnimalsAntibodies, NeutralizingAntibodies, ViralChlorocebus aethiopsCOVID-19COVID-19 SerotherapyCritical IllnessFemaleHumansImmunization, PassiveImmunoglobulin GMaleMiddle AgedAntibodies, NeutralizingAntibodies, ViralImmunoglobulin GFFP transfusioninfectious disease testingintravenous immunoglobulin

Identifiers

PMID33784412
PMCPMC8251157
OpenAlexW3147231428

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.