Evidence map›Paper›PMID 32093666›Full record

ArticleBMC ophthalmology2020

A treat and extend protocol with Aflibercept for cystoid macular oedema secondary to central retinal vein occlusion - an 18-month prospective cohort study.

Roderick O'Day, Noha Ali, Lyndell L Lim, Sukhpal Sandhu, Thuy Chau, Sanjeewa Wickremasinghe

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

6 citing papers in PubMed, 12 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

6 authors at 2 institutions in 2 countries.

Roderick O'DayMedical Retina Clinic, Royal Victorian Eye and Ear Hospital, Victoria, Australia.
Noha AliCentre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Victoria, Australia.
Lyndell L LimMedical Retina Clinic, Royal Victorian Eye and Ear Hospital, Victoria, Australia.
Sukhpal SandhuMedical Retina Clinic, Royal Victorian Eye and Ear Hospital, Victoria, Australia.
Thuy ChauCentre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, Victoria, Australia.
Sanjeewa WickremasingheMedical Retina Clinic, Royal Victorian Eye and Ear Hospital, Victoria, Australia. sanj.wickremasinghe@eyeandear.org.au.
Centre for Eye Research Australia · AUThe Royal Victorian Eye & Ear Hospital · AU

Funding

National Health and Medical Research Council GNT 1109330National Health and Medical Research Council GNT 1128343
6 · The paper itself

Abstract

backgroundTo evaluate the safety and efficacy of a treat-and-extend protocol of aflibercept for cystoid macular oedema (CMO) secondary to central retinal vein occlusion (CRVO).

methodsTwenty patients with CMO secondary to CRVO were included in this prospective cohort study. After 3 loading 4-weekly injections, treatment intervals were increased by 2 weeks if there was no clinical activity, to a maximum of 12 weeks. If clinical activity recurred or persisted, the interval between injections was shortened by 2 weeks, to a minimum of 4 weeks. Main outcome measures were change in visual acuity and the proportion of patients gaining 15 or more Early Treatment of Diabetic Retinopathy Study (ETDRS) letters from baseline at 6, 12 and 18 months.

resultsMean BCVA gain from baseline was 19.7 ± 13.8, 22.2 ± 13.9 and 21.9 ± 15.8 ETDRS letters at 6, 12 and 18 months, respectively. Sixty-five percent of patients gained 15 or more ETDRS letters at 6 months, increasing to 70.6% at 12 and 18 months. Patients received 5.0 [4.0 to 6.0], 8.5 [8.0 to 10.3] and 11.0 [9.0 to 12.5] injections by 6, 12 and 18 months, respectively.

conclusionsThe visual outcomes achieved with a treat-and-extend protocol in this study were similar to the pivotal trials of aflibercept for CMO secondary to CRVO, which used monthly and then as-needed protocols.

trial registrationAustralian and New Zealand Clinical Trials Registry, registration number ACTRN12615000417583, 01/05/2015.

Indexed as

AdultAgedAged, 80 and overAngiogenesis InhibitorsFemaleFluorescein AngiographyHumansIntravitreal InjectionsMacular EdemaMaleMiddle AgedProspective StudiesReceptors, Vascular Endothelial Growth FactorRecombinant Fusion ProteinsRetinal Vein OcclusionTomography, Optical CoherenceafliberceptAngiogenesis InhibitorsReceptors, Vascular Endothelial Growth FactorRecombinant Fusion ProteinsVascular Endothelial Growth Factor AVEGFA protein, humanAfliberceptAnti-vascular endothelial growth factor inhibitorsCentral retinal vein occlusionCystoid macular oedemaTreat-and-extend

Identifiers

PMID32093666
PMCPMC7038604
OpenAlexW3012273996

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.