Evidence map›Paper›PMID 17327245›Full record

Trial reportClinical trials (London, England)2007

The impact of helminths on the response to immunization and on the incidence of infection and disease in childhood in Uganda: design of a randomized, double-blind, placebo-controlled, factorial trial of deworming interventions delivered in pregnancy and early childhood [ISRCTN32849447].

Alison M Elliott, Moses Kizza, Maria A Quigley, Juliet Ndibazza, Margaret Nampijja, Lawrence Muhangi, Linda Morison, Proscovia B Namujju, Moses Muwanga, Narcis Kabatereine and 1 more

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Clinical trials (London, England), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 4 pooled it
4.5field-weighted citation impact, top 5% 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

74 citing papers in PubMed, 4 syntheses or guidelines pooled it, 138 citations in OpenAlex.

  1. Iron Deficiency Is Associated With Reduced Levels of Plasmodium falciparum-specific Antibodies in African Children.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021
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  7. Effects of treating helminths during pregnancy and early childhood on risk of allergy-related outcomes: Follow-up of a randomized controlled trial.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2017
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  18. A description of congenital anomalies among infants in Entebbe, Uganda.Birth defects research. Part A, Clinical and molecular teratology · 2011
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  19. Anthelminthic treatment during pregnancy is associated with increased risk of infantile eczema: randomised-controlled trial results.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2011
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14 more citing papers are in PubMed but not listed here.

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

11 authors at 5 institutions in 2 countries.

Alison M ElliottUganda Virus Research Institute, Entebbe, Uganda. alison.tom@infocom.co.ug
Moses Kizza
Maria A Quigley
Juliet Ndibazza
Margaret Nampijja
Lawrence Muhangi
Linda Morison
Proscovia B Namujju
Moses Muwanga
Narcis Kabatereine
James A G Whitworth
Uganda Virus Research Institute · UGLondon School of Hygiene & Tropical Medicine · GBMinistry of Agriculture, Animal Industry and Fisheries · UGMinistry of Health · UGUniversity of Oxford · GB

Funding

Wellcome Trust 064693
6 · The paper itself

Abstract

backgroundHelminths have profound effects on the immune response, allowing long-term survival of parasites with minimal damage to the host. Some of these effects "spill-over", altering responses to non-helminth antigens or allergens. It is suggested that this may lead to impaired responses to immunizations and infections, while conferring benefits against inflammatory responses in allergic and autoimmune disease. These effects might develop in utero, through exposure to maternal helminth infections, or through direct exposure in later life. PURPOSE: To determine the effects of helminths and their treatment in pregnancy and in young children on immunological and disease outcomes in childhood.

methodsThe trial has three randomized, double-blind, placebo-controlled interventions at two times, in two people: a pregnant woman and her child. Pregnant women are randomized to albendazole or placebo and praziquantel or placebo. At age 15 months their children are randomized to three-monthly albendazole or placebo, to continue to age five years. The proposed designation for this sequence of interventions is a 2 x 2(x2) factorial design. Children are immunized with BCG and against polio, Diphtheria, tetanus, Pertussis, Haemophilus, hepatitis B and measles. Primary immunological outcomes are responses to BCG antigens and tetanus toxoid in whole blood cytokine assays and antibody assays at one, three and five years of age. Primary disease outcomes are incidence of malaria, pneumonia, diarrhoea, tuberculosis, measles, vertical HIV transmission, and atopic disease episodes, measured at clinic visits and twice-monthly home visits. Effects on anaemia, growth and intellectual development are also assessed.

conclusionThis trial, with a novel design comprising related interventions in pregnant women and their offspring, is the first to examine effects of helminths and their treatment in pregnancy and early childhood on immunological, infectious disease and allergic disease outcomes. The results will enhance understanding of both detrimental and beneficial effects of helminth infection and inform policy.

Indexed as

ImmunizationAlbendazoleAnimalsAntiparasitic AgentsChildDouble-Blind MethodFemaleHelminthiasisHelminthsHumansIncidenceMalePraziquantelPregnancyPregnancy Complications, ParasiticResearch DesignAlbendazoleAntiparasitic AgentsPraziquantel

Identifiers

PMID17327245
PMCPMC2643383
OpenAlexW2054445248

What OpenQuestion holds

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LicenceCC BY
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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.