Evidence map›Paper›PMID 28893761›Full record

ArticleThe British journal of ophthalmology2018

Effectiveness of expanding annual mass azithromycin distribution treatment coverage for trachoma in Niger: a cluster randomised trial.

Abdou Amza, Boubacar Kadri, Beido Nassirou, Sun Y Cotter, Nicole E Stoller, Sheila K West, Robin L Bailey, Travis C Porco, Bruce D Gaynor, Jeremy D Keenan and 2 more

Registry-linked trialAbstract read
In one paragraph

Article in The British journal of ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00792922 (Research to Programs for Trachoma Elimination), which is not on this map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
–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.

NCT00792922 phase4completednot on this map

Research to Programs for Trachoma Elimination: Antibiotic Trial

TypeinterventionalSponsorJohns Hopkins UniversityRan2008 to 2014Enrolled128ConditionsTrachomaArmsAzithromycin
3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Antibiotics for trachoma.The Cochrane database of systematic reviews · 2019
    Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Trachoma.Nature reviews. Disease primers · 2022
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Toward the Elimination of Disease: the 2019 Weisenfeld Award Lecture.Investigative ophthalmology & visual science · 2019
    Article
  15. Review
  16. 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

12 authors.

Abdou AmzaProgramme FSS/Université Abdou Moumouni de Niamey, Programme National de Santé Oculaire, Niamey, Niger.
Boubacar KadriProgramme FSS/Université Abdou Moumouni de Niamey, Programme National de Santé Oculaire, Niamey, Niger.
Beido NassirouProgramme FSS/Université Abdou Moumouni de Niamey, Programme National de Santé Oculaire, Niamey, Niger.
Sun Y CotterF.I. Proctor Foundation, University of California San Francisco, San Francisco, California, USA.
Nicole E StollerF.I. Proctor Foundation, University of California San Francisco, San Francisco, California, USA.
Sheila K WestDana Center for Preventive Ophthalmology, Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland, USA.
Robin L BaileyClinical Research Unit, Department of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK.
Travis C PorcoF.I. Proctor Foundation, University of California San Francisco, San Francisco, California, USA.
Bruce D GaynorF.I. Proctor Foundation, University of California San Francisco, San Francisco, California, USA.
Jeremy D KeenanF.I. Proctor Foundation, University of California San Francisco, San Francisco, California, USA.
Thomas M LietmanF.I. Proctor Foundation, University of California San Francisco, San Francisco, California, USA.
Catherine E OldenburgF.I. Proctor Foundation, University of California San Francisco, San Francisco, California, USA.

Funding

The Brown Initiative in HIV and AIDS Clinical Research for Minority CommunitiesR25MH083620 · NIMH · MIRIAM HOSPITAL · PI NUNN, AMY STEWART · 2008 to 2025
$3.7M
NEI NIH HHS L40 EY028421NIMH NIH HHS R25 MH083620
6 · The paper itself

Abstract

BACKGROUND/

aimsThe WHO recommends 3-5 years of annual mass azithromycin distribution with at least 80% treatment coverage to districts with active trachoma prevalence over 10% among children. Here, we assess the efficacy of expanding the coverage target to at least 90% for trachoma control in a mesoendemic region of Niger.

methodsTwenty-four communities were randomised to a single day of azithromycin distribution with a coverage target of 80% of the community or up to 4 days of treatment, aiming for greater than 90% coverage. Distributions were annual and individuals above 6 months of age were treated. Children under 5 years of age were monitored for ocular chlamydia infection and active trachoma.

resultsAt baseline, ocular chlamydia prevalence was 20.5% (95% CI 9.8% to 31.2%) in the standard coverage arm and 21.9% (95% CI 11.3% to 32.5%) in the enhanced coverage arm, which reduced to 4.6% (95% CI 0% to 9.5%, p=0.008) and 7.1% (95% CI 2.7% to 11.4%, p<0.001) at 36 months, respectively. There was no significant difference in 36-month ocular chlamydia prevalence between the two arms (p=0.21). There was no difference in the rate of decline in ocular chlamydia between the two arms in a repeated measures model (p=0.80).

conclusionsFor annual mass azithromycin distribution programme to an entire community, there may be no additional benefit of increasing antibiotic coverage above the WHO's 80% target. TRIAL REGISTRATION NUMBER: NCT00792922, post-results.

Indexed as

Anti-Bacterial AgentsAntibiotic ProphylaxisAzithromycinChild, PreschoolDelivery of Health CareFemaleHumansInfantMaleNigerPrevalenceTrachomaAnti-Bacterial AgentsAzithromycinChild Health (paediatrics)Clinical TrialConjunctivaInfectionPublic Health

Identifiers

PMID28893761
PMCPMC5845832

What OpenQuestion holds

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Registered trials

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.