Evidence map›Paper›PMID 34713921›Full record

SynthesisBritish journal of clinical pharmacology2022

Efficacy and safety of tocilizumab versus standard care/placebo in patients with COVID-19; a systematic review and meta-analysis of randomized clinical trials.

Driton Vela, Zana Vela-Gaxha, Mjellma Rexhepi, Rozafa Olloni, Violeta Hyseni, Rajmonda Nallbani

Open access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in British journal of clinical pharmacology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
1.8field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Early hyperferritinemia in polytrauma: a biomarker of systemic inflammation and mortality risk in a multicenter cohort study.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Observational
  4. Macrophage activation syndrome in Sepsis: from pathogenesis to clinical management.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2024
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Drugs for COVID-19: An Update.Molecules (Basel, Switzerland) · 2022
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Biologics in COVID-19 So Far: Systematic Review.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. 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

6 authors at 2 institutions in 2 countries.

Driton VelaFaculty of Medicine, University of Prishtina, Prishtina, Kosova.ORCID 0000-0002-3557-8748
Zana Vela-GaxhaFaculty of Medicine, University of Prishtina, Prishtina, Kosova.
Mjellma RexhepiFaculty of Medicine, University of Prishtina, Prishtina, Kosova.
Rozafa OlloniClinic of Endocrinology, University Clinical Centre of Kosova, Prishtina, Kosova.
Violeta HyseniClinic of Cardiology, University Clinical Centre of Kosova, Prishtina, Kosova.
Rajmonda NallbaniFaculty of Medicine, University of Prishtina, Prishtina, Kosova.
University Clinical Center of Kosovo · XKUniversity of Prishtina · XK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTocilizumab has emerged as an important therapy in treating patients with coronavirus disease (COVID-19). Our purpose was to evaluate the efficacy and safety of tocilizumab versus standard care/placebo in patients with COVID-19.

methodsWe searched a variety of sources from 1 January 2020 to 5 May 2021. All randomized controlled trials that reported tocilizumab efficacy as a primary agent in COVID-19 patients were considered. RCTs had to include mortality events, incidence of mechanical ventilation and serious adverse events. Two reviewers were independently responsible for data extraction. Assessment of bias and certainty of evidence was carried out using the Cochrane Risk of Bias Tool and GRADE methodology. RR for mortality events was evaluated using a fixed-effects model.

resultsA total of 6837 patients were included from 10 RCTs, of which nine were peer-reviewed. Pooled risk ratio (RR) for all-cause mortality in patients with tocilizumab administration was RR = 0.88 (95% CI: 0.81-0.95, P = .0009). RR for incidence of mechanical ventilation at 28-30 days was 0.79 (95% CI: 0.71-0.88). Serious adverse events (SAE) with tocilizumab use were associated with lower RR (RR = 0.91, 95% CI: 0.76-1.09) but the certainty of evidence was downgraded to moderate due to serious risk of bias.

conclusionIn COVID-19 patients with moderate to critical COVID-19, use of tocilizumab reduces all-cause mortality and progression to mechanical ventilation. This efficacy was not associated with higher number of serious adverse events.

Indexed as

COVID-19 Drug TreatmentAntibodies, Monoclonal, HumanizedHumansRandomized Controlled Trials as TopicSARS-CoV-2Antibodies, Monoclonal, HumanizedtocilizumabCOVID-19meta-analysisrandomized clinical trialtocilizumab

Identifiers

PMID34713921
PMCPMC8653234
OpenAlexW3210578089

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.