Evidence map›Paper›PMID 29728135›Full record

ArticleParasites & vectors2018

Targeting cattle for malaria elimination: marked reduction of Anopheles arabiensis survival for over six months using a slow-release ivermectin implant formulation.

Carlos J Chaccour, Kija Ngha'bi, Gloria Abizanda, Angel Irigoyen Barrio, Azucena Aldaz, Fredros Okumu, Hannah Slater, Jose Luis Del Pozo, Gerry Killeen

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 3 pooled it
7.8field-weighted citation impact, top 2% 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

46 citing papers in PubMed, 3 syntheses or guidelines pooled it, 94 citations in OpenAlex.

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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

9 authors at 6 institutions in 4 countries.

Carlos J ChaccourInstituto de Salud Tropical, Universidad de Navarra, Pamplona, Spain. carlos.chaccour@isglobal.org.ORCID 0000-0001-9812-050X
Kija Ngha'biEnvironmental Health and Ecological Sciences Department, Ifakara Health Institute, Ifakara, United Republic of Tanzania.
Gloria AbizandaCentro de Investigación Médica Aplicada, Pamplona, Spain.
Angel Irigoyen BarrioDrug Development Unit Universidad de Navarra (DDUNAV), Pamplona, Spain.
Azucena AldazDepartment of pharmacy, Clínica Universidad de Navarra, Pamplona, Spain.
Fredros OkumuInstituto de Salud Tropical, Universidad de Navarra, Pamplona, Spain.
Hannah SlaterMRC Centre for Outbreak Analysis & Modelling, Department of Infectious Disease Epidemiology, Imperial College London, London, UK.
Jose Luis Del PozoInstituto de Salud Tropical, Universidad de Navarra, Pamplona, Spain.
Gerry KilleenEnvironmental Health and Ecological Sciences Department, Ifakara Health Institute, Ifakara, United Republic of Tanzania.
Ifakara Health Institute · TZClinica Universidad de Navarra · ESImperial College London · GBInstituto de Salud Pública de Navarra · ESUniversidad de Navarra · ESUniversity of the Witwatersrand · ZA

Funding

Royal Society of Tropical Medicine and Hygiene (GB) GR000543
6 · The paper itself

Abstract

backgroundMosquitoes that feed on animals can survive and mediate residual transmission of malaria even after most humans have been protected with insecticidal bednets or indoor residual sprays. Ivermectin is a widely-used drug for treating parasites of humans and animals that is also insecticidal, killing mosquitoes that feed on treated subjects. Mass administration of ivermectin to livestock could be particularly useful for tackling residual malaria transmission by zoophagic vectors that evade human-centred approaches. Ivermectin comes from a different chemical class to active ingredients currently used to treat bednets or spray houses, so it also has potential for mitigating against emergence of insecticide resistance. However, the duration of insecticidal activity obtained with ivermectin is critical to its effectiveness and affordability.

resultsA slow-release formulation for ivermectin was implanted into cattle, causing 40 weeks of increased mortality among Anopheles arabiensis that fed on them. For this zoophagic vector of residual malaria transmission across much of Africa, the proportion surviving three days after feeding (typical mean duration of a gonotrophic cycle in field populations) was approximately halved for 25 weeks.

conclusionsThis implantable ivermectin formulation delivers stable and sustained insecticidal activity for approximately 6 months. Residual malaria transmission by zoophagic vectors could be suppressed by targeting livestock with this long-lasting formulation, which would be impractical or unacceptable for mass treatment of human populations.

Indexed as

AfricaAnimalsAnophelesCattleDelayed-Action PreparationsDisease EradicationDrug ImplantsHumansInsecticide ResistanceInsecticidesIvermectinMalariaMosquito ControlMosquito VectorsDelayed-Action PreparationsDrug ImplantsInsecticidesIvermectinCattleEndectocidesIvermectinPharmacokineticsResidual transmissionSlow releaseZoophagy

Identifiers

PMID29728135
PMCPMC5935946
OpenAlexW2807187407

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.