Evidence map›Paper›PMID 33476807›Full record

SynthesisClinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases2021

Prophylaxis for COVID-19: a systematic review.

Mikaela Smit, Annalisa Marinosci, Thomas Agoritsas, Alexandra Calmy

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 4 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

15 citing papers in PubMed, 4 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Use of hydroxychloroquine to prevent SARS-CoV-2 infection and treat mild COVID-19: a systematic review and meta-analysis.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2021
    Pooled it
  5. Article
  6. Article
  7. Article
  8. Molecular design of a pathogen activated, self-assembling mechanopharmaceutical device.Journal of controlled release : official journal of the Controlled Release Society · 2022
    Review
  9. Maoto, a traditional herbal medicine, for post-exposure prophylaxis for Japanese healthcare workers exposed to COVID-19: A single center study.Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy · 2022
    Article
  10. Article
  11. Article
  12. Article
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  15. 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

4 authors at 1 institution in 2 countries.

Mikaela SmitHIV/AIDS Unit, Department of Infectious Diseases, Geneva, Switzerland; Faculty of Medicine, University of Geneva, Geneva, Switzerland. Electronic address: mikaela.smit@hcuge.ch.
Annalisa MarinosciHIV/AIDS Unit, Department of Infectious Diseases, Geneva, Switzerland.
Thomas AgoritsasDepartment of Medicine, Geneva University Hospitals, Geneva, Switzerland; Faculty of Medicine, University of Geneva, Geneva, Switzerland; Department of Health Research Methods, Evidence and Impact, Hamilton, Ontario, Canada.
Alexandra CalmyHIV/AIDS Unit, Department of Infectious Diseases, Geneva, Switzerland; Faculty of Medicine, University of Geneva, Geneva, Switzerland.
University of Geneva · CH

Funding

Medical Research Council MC_PC_19012Medical Research Council MR/R015600/1World Health Organization 001
6 · The paper itself

Abstract

backgroundWhile the landscape of vaccine and treatment candidates against the novel coronavirus disease 2019 (COVID-19) has been reviewed systematically, prophylactic candidates remain unexplored.

objectivesTo map pre- and postexposure prophylactic (PrEP and PEP) candidate for COVID-19. DATA SOURCES: PubMed/Medline, Embase, International Committee of Medical Journal Editors and International Clinical Trials Registry Platform clinical trial registries and medRxiv. STUDY ELIGIBILITY CRITERIA AND

participantsAll studies in humans or animals and randomized controlled trials (RCTs) in humans reporting primary data on prophylactic candidates against COVID-19, excluding studies focused on key populations.

interventionsPrEP and PEP candidate for COVID-19.

methodsSystematic review and qualitative synthesis of COVID-19 PrEP and PEP studies and RCTs complemented by search of medRxiv and PubMed and Embase for studies reporting RCT outcomes since systematic review search completion.

resultsWe identified 13 studies (from 2119 database records) and 117 RCTs (from 5565 RCTs listed in the registries) that met the inclusion criteria. Non-RCT studies reported on cross-sectional studies using hydroxychloroquine (HCQ) in humans (n = 2) or reported on animal studies (n = 7), most of which used antibodies. All five completed RCTs focused on the use of HCQ as either PrEP or PEP, and these and the cross-sectional studies reported no prophylactic effect. The majority of ongoing RCTs evaluated HCQ or other existing candidates including non-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccines, anti(retro)virals or use of vitamins and supplements.

conclusionsThe key message from completed studies and RCTs seems to be that HCQ does not work. There is little evidence regarding other compounds, with all RCTs using candidates other than HCQ still ongoing. It remains to be seen if the portfolio of existing molecules being evaluated in RCTs will identify successful prophylaxis against COVID-19 or if there is a need for the development of new candidates.

Indexed as

Post-Exposure ProphylaxisPre-Exposure ProphylaxisAnimalsAntibodies, MonoclonalAntibodies, NeutralizingAntibodies, ViralAntimalarialsAntiviral AgentsCOVID-19HumansHydroxychloroquineRandomized Controlled Trials as TopicSARS-CoV-2VaccinesAntibodies, MonoclonalAntibodies, NeutralizingAntibodies, ViralAntimalarialsAntiviral AgentsHydroxychloroquineVaccinesCOVID-19ProphylaxisRandomized control trialsSARS-CoV-2Systematic review

Identifiers

PMID33476807
PMCPMC7813508
OpenAlexW3123641158

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.