Evidence map›Paper›PMID 26935065›Full record

Trial reportParasites & vectors2016

Efficacy and reinfection with soil-transmitted helminths 18-weeks post-treatment with albendazole-ivermectin, albendazole-mebendazole, albendazole-oxantel pamoate and mebendazole.

Benjamin Speich, Wendelin Moser, Said M Ali, Shaali M Ame, Marco Albonico, Jan Hattendorf, Jennifer Keiser

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Parasites & vectors, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
6.6field-weighted citation impact, top 3% 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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Anthelmintic drugs for treating ascariasis.The Cochrane database of systematic reviews · 2020
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  17. New global targets for NTDs in the WHO roadmap 2021-2030.PLoS neglected tropical diseases · 2021
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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

7 authors at 3 institutions in 2 countries.

Benjamin SpeichDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland. beni.speich@gmail.com.
Wendelin MoserDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland. wendelin.moser@unibas.ch.
Said M AliLaboratory Division, Public Health Laboratory-Ivo de Carneri, Chake Chake, Tanzania. saidmali2003@yahoo.com.
Shaali M AmeLaboratory Division, Public Health Laboratory-Ivo de Carneri, Chake Chake, Tanzania. shaaliame@yahoo.com.
Marco AlbonicoIvo de Carneri Foundation, Milan, Italy. albonico@tin.it.
Jan HattendorfUniversity of Basel, Basel, Switzerland. jan.hattendorf@unibas.ch.
Jennifer KeiserDepartment of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland. jennifer.keiser@unibas.ch.
University of Basel · CHPublic Health Laboratory Ivo de Carneri · TZSwiss Tropical and Public Health Institute · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreventive chemotherapy with albendazole or mebendazole is the current strategy to control soil-transmitted helminth (STH) infections (i.e. Ascaris lumbricoides, hookworm and Trichuris trichiura). STH reinfections, in particular A. lumbricoides and T. trichiura occur rapidly after treatment with the standard drugs. However, their low efficacy against T. trichiura, made an accurate assessment of reinfection patterns impossible.

methodsIn 2013 a randomised controlled trial was conducted on Pemba Island, Tanzania. School-aged children diagnosed positive for T. trichiura, were randomly allocated to (i) albendazole-ivermectin; (ii) albendazole-mebendazole; (iii) albendazole-oxantel pamoate; or (iv) mebendazole. Here we report the efficacy [cure rates (CR) and egg-reduction rates (ERR)], reinfection rates and new infections determined 18 weeks post-treatment.

resultsFor a total of 405 children complete baseline and follow-up data were available. Similar to the efficacy determined after 3 weeks, 18 weeks after treatment albendazole-oxantel pamoate showed a significantly higher efficacy against T. trichiura (CR: 54.0 %, 95 % CI: 43.7-64.0; ERR: 98.6 %, 95 % CI: 97.8-99.2) compared to the other treatment arms. Children treated with albendazole-oxantel pamoate or albendazole-ivermectin had fewer moderate infections compared to children treated with albendazole. The reinfection rates 18 weeks post-treatment among all treatment arms were 37.2 % for T. trichiura (95 % CI: 28.3-46.8), 34.6 % for A. lumbricoides (95 % CI: 27.3-42.3) and 25.0 % for hookworms (95 % CI: 15.5-36.6).

conclusionThe moderate reinfection rates with STHs 18 weeks post-treatment support the concept of regular anthelminthic treatment in highly endemic settings. Combination chemotherapy might achieve decreased morbidity in children since in the albendazole plus oxantel pamoate and albendazole plus ivermectin treatment arms only few moderate T. trichiura infections remained. Further trials should investigate the long term efficacy of albendazole-oxantel pamoate (i.e. 6 and 12 month post-treatment) and after several rounds of treatment in order to develop recommendations for appropriate control approaches for STH infections.

trial registrationCurrent Controlled Trials ISRCTN80245406.

Indexed as

AdolescentAnthelminticsAscariasisChildDrug CombinationsFemaleHookworm InfectionsHumansMaleParasite Egg CountRecurrenceSecondary PreventionTanzaniaTreatment OutcomeTrichuriasisAnthelminticsDrug Combinations

Identifiers

PMID26935065
PMCPMC4776366
OpenAlexW2290844868

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.