Evidence map›Paper›PMID 38641845›Full record

ArticleTrials2024

Haem iron versus ferrous iron salts to treat iron deficiency anaemia in Gambian children: protocol for randomised controlled trial {1}.

Mamadou Bah, Hans Verhoef, Emmanuel Okoh, Abdoulie Bah, Andrew M Prentice, Carla Cerami

Open access · goldAbstract readClinical Trial Protocol
In one paragraph

Article in Trials, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 4 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. 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 at 2 institutions in 2 countries.

Mamadou BahMedical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia.
Hans VerhoefDivision of Human Nutrition and Health, Wageningen University, PO Box 17, 6700, AA, Wageningen, The Netherlands.
Emmanuel OkohMedical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia.
Abdoulie BahMedical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia.
Andrew M PrenticeMedical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia.
Carla CeramiMedical Research Council (MRC) Unit The Gambia at London School of Hygiene & Tropical Medicine (LSHTM), PO Box 273, Fajara, Banjul, The Gambia. carla.cerami@lshtm.ac.uk.ORCID http://orcid.org/0000-0002-7634-0955
MRC Unit the Gambia · GMWageningen University & Research · NL

Funding

Medical Research Council MR/R023360/1
6 · The paper itself

Abstract

backgroundThe World Health Organization recommends universal iron supplementation for children aged 6-23 months in countries where anaemia is seen in over 40% of the population. Conventional ferrous salts have low efficacy due to low oral absorption in children with inflammation. Haem iron is more bioavailable, and its absorption may not be decreased by inflammation. This study aims to compare daily supplementation with haem iron versus ferrous sulphate on haemoglobin concentration and serum ferritin concentration after 12 weeks of supplementation.

methodsThis will be a two-arm, randomised controlled trial. Gambian children aged 6-12 months with anaemia will be recruited within a predefined geographical area and recruited by trained field workers. Eligible participants will be individually randomised using a 1:1 ratio within permuted blocks to daily supplementation for 12 weeks with either 10.0 mg of elemental iron as haem or ferrous sulphate. Safety outcomes such as diarrhoea and infection-related adverse events will be assessed daily by the clinical team (see Bah et al. Additional file 4_Adverse event eCRF). Linear regression will be used to analyse continuous outcomes, with log transformation to normalise residuals as needed. Binary outcomes will be analysed by binomial regression or logistic regression, Primary analysis will be by modified intention-to-treat (i.e., those randomised and who ingested at least one supplement dose of iron), with multiple imputations to replace missing data. Effect estimates will be adjusted for baseline covariates (C-reactive protein, alpha-1-acid glycoprotein, haemoglobin, ferritin, soluble transferrin receptor). DISCUSSION: This study will determine if therapeutic supplementation with haem iron is more efficacious than with conventional ferrous sulphate in enhancing haemoglobin and ferritin concentrations in anaemic children aged 6-12 months.

trial registrationPan African Clinical Trial Registry PACTR202210523178727.

Indexed as

AnemiaAnemia, Iron-DeficiencyChildDietary SupplementsFerritinsFerrous CompoundsGambiaHemeHemoglobinsHumansInflammationIronRandomized Controlled Trials as TopicSaltsFerritinsFerrous Compoundsferrous sulfateHemeHemoglobinsIronSaltsAnaemiaGambiaHaem ironHepcidinInfantsIron deficiencyIron statusIron supplementsSafety

Identifiers

PMID38641845
PMCPMC11027386
OpenAlexW4394958920

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.