Evidence map›Paper›PMID 39965016›Full record

Trial reportPLoS neglected tropical diseases2025

Performance of real-time polymerase chain reaction and Kato-Katz for diagnosing soil-transmitted helminth infections and evaluating treatment efficacy of emodepside in randomized controlled trials.

Christian N Lotz, Emmanuel C Mrimi, Pierre H H Schneeberger, Said M Ali, Jan Hattendorf, Jennifer Keiser

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in PLoS neglected tropical diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. 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.

Christian N LotzSwiss Tropical and Public Health Institute, Allschwil, Switzerland.
Emmanuel C MrimiSwiss Tropical and Public Health Institute, Allschwil, Switzerland.
Pierre H H SchneebergerSwiss Tropical and Public Health Institute, Allschwil, Switzerland.
Said M AliPublic Health Laboratory-Ivo de Carneri, Chake Chake, Pemba, Tanzania.
Jan HattendorfSwiss Tropical and Public Health Institute, Allschwil, Switzerland.
Jennifer KeiserSwiss Tropical and Public Health Institute, Allschwil, Switzerland.ORCID 0000-0003-0290-3521

Funding

European Research Council
6 · The paper itself

Abstract

backgroundThe World Health Organization recommends the use of the microscopy-based Kato-Katz thick smear for diagnosing soil-transmitted helminth (STH) infections. Despite its simplicity and cost-effectiveness, the Kato-Katz method faces challenges, including reader subjectivity and reduced sensitivity. Real-time polymerase chain reaction (qPCR) technology offers standardized readouts and higher sensitivity, making it suitable for STH diagnosis and monitoring the treatment efficacy of emodepside within the framework of randomized controlled trials. METHODOLOGY/PRINCIPAL

findingsWe evaluated the performance of Kato-Katz versus qPCR for assessing treatment efficacy in terms of cure rates, of single doses of 5, 10, 15, 20, 25 and 30 mg of emodepside compared to 400 mg albendazole. Spearman's rank correlation coefficient examined the correlation between STH eggs per gram in stool samples and qPCR Ct values. Diagnostic sensitivity of qPCR was calculated using a Bayesian latent class modelling approach with data from Ascaris lumbricoides infections. Agreement between Kato-Katz and qPCR at baseline was 93.57% for Trichuris trichiura, and 73.49% for both hookworm and A. lumbricoides. For the latter helminth qPCR demonstrated higher sensitivity (85.00% vs. 47.70%) and slightly lower specificity (93.40% vs. 99.40%) compared to Kato-Katz. We observed a fair to moderate agreement with negative correlation between Ct values and Kato-Katz egg counts. Treatment efficacy, as assessed by qPCR, was lower for all doses of emodepside and albendazole compared to Kato-Katz. Nonetheless, emodepside demonstrated higher cure rates against T. trichiura and A. lumbricoides infections compared to albendazole. CONCLUSION/ SIGNIFICANCE: Our study confirmed that qPCR is a sensitive diagnostic method for diagnosing STH infections compared to Kato-Katz and serves as a valuable tool for determining treatment efficacy in clinical trials. Furthermore, qPCR confirmed the better treatment efficacy of emodepside compared to albendazole, despite indicating lower cure rates than Kato-Katz.

Indexed as

AnthelminticsDepsipeptidesHelminthiasisReal-Time Polymerase Chain ReactionSoilAdolescentAdultAlbendazoleAnimalsAscaris lumbricoidesChildChild, PreschoolFecesFemaleHumansMaleAlbendazoleAnthelminticsDepsipeptidesemodepsideSoil

Identifiers

PMID39965016
PMCPMC11835329

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Registered trials

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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.