Evidence map›Paper›PMID 33730095›Full record

SynthesisPLoS neglected tropical diseases2021

Efficacy of praziquantel has been maintained over four decades (from 1977 to 2018): A systematic review and meta-analysis of factors influence its efficacy.

Mizuho Fukushige, Margo Chase-Topping, Mark E J Woolhouse, Francisca Mutapi

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PLoS neglected tropical diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 3 pooled it
8.2field-weighted citation impact, top 1% 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

44 citing papers in PubMed, 3 syntheses or guidelines pooled it, 67 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Direct measurement ofbioRxiv : the preprint server for biology · 2026
    Article
  7. Article
  8. Article
  9. Plant-Derived Terpenes as Emerging Therapeutics Against Schistosomiasis.International journal of molecular sciences · 2026
    Review
  10. Article
  11. TRPtracker: a community database for monitoring praziquantel sensitivity at TRPMInternational journal for parasitology. Drugs and drug resistance · 2026
    Article
  12. Challenges in the diagnostic of bilharziasis: a case report.International journal of surgery case reports · 2026
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Enhancing schistosomiasis drug discovery approaches with optimized proteasome substrates.Protein science : a publication of the Protein Society · 2025
    Article
  19. Article
  20. 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

4 authors at 4 institutions in 2 countries.

Mizuho FukushigeInstitute of Immunology and Infection Research, Centre for Immunity, Infection & Evolution, Edinburgh Medical School: Biomedical Sciences, University of Edinburgh, Edinburgh, United Kingdom.ORCID 0000-0003-3910-5574
Margo Chase-ToppingRoslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom.ORCID 0000-0003-4668-333X
Mark E J WoolhouseUsher Institute, University of Edinburgh, Edinburgh, United Kingdom.ORCID 0000-0003-3765-8167
Francisca MutapiInstitute of Immunology and Infection Research, Centre for Immunity, Infection & Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom.
Centre for Immunity, Infection and Evolution · GBRoslin Institute · GBUniversity of Edinburgh · GBUniversity of Tsukuba · JP

Funding

Department of Health 16/136/33Wellcome Trust WT082028MAWellcome Trust WT095831
6 · The paper itself

Abstract

backgroundThe antihelminthic drug praziquantel has been used as the drug of choice for treating schistosome infection for more than 40 years. Although some epidemiological studies have reported low praziquantel efficacy in cure rate (CR) and/or egg reduction rate (ERR), there is no consistent robust evidence of the development of schistosome resistance to praziquantel (PZQ). There is need to determine factors that lead to variable treatment CR and/or ERR. Therefore, we conducted a systematic review and meta-analysis to review CR and ERR as well as identify their predictors. METHODOLOGY/PRINCIPAL

findingsIn this systematic review and meta-analysis, a literature review was conducted using Biosis Citation Index, Data Citation Index, MEDLINE, and Web of Science Core Collection all of which were provided through Web of Science. Alongside these, EMBASE, and CAB abstracts were searched to identify relevant articles. Random effect meta-regression models were used to identify the factors that influence CR and/or ERR by considering differences in host characteristics and drug dose. In total, 12,127 potential articles were screened and 146 eligible articles (published from 1979 to 2020) were identified and included for the meta-analysis. We found that there has been no significant reduction in CR or ERR over the study period. The results showed more variability in CR, compared with ERR which was more consistent and remained high. The results showed a positive effect of "PZQ treatment dose" with the current recommended dose of 40 mg/kg body weight achieving 57% to 88% CR depending on schistosome species, age of participants, and number of parasitological samples used for diagnosis, and ERR of 95%. CONCLUSIONS/SIGNIFICANCE: Based on a review of over 40 years of research there is no evidence to support concerns about schistosomes developing resistance to PZQ. These results indicate that PZQ remains effective in treating schistosomiasis.

Indexed as

AnimalsAnthelminticsHumansParasite Egg CountPraziquantelSchistosomaSchistosomiasisTreatment OutcomeAnthelminticsPraziquantel

Identifiers

PMID33730095
PMCPMC7968639
OpenAlexW3138196229

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.