Evidence map›Paper›PMID 32359843›Full record

Trial reportOphthalmology2020

Long-term Visual Outcomes after Release from Protocol in Patients who Participated in the Inhibition of VEGF in Age-related Choroidal Neovascularisation (IVAN) Trial.

Rebecca N Evans, Barnaby C Reeves, Dawn Phillips, Katherine Alyson Muldrew, Chris Rogers, Simon P Harding, Usha Chakravarthy, IVAN Study Group

Open access · hybridAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 27 citations in OpenAlex.

  1. Targeted Fluorescence Imaging of Bevacizumab-800CW in Patients with Neovascular Age-Related Macular Degeneration.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2026
    Trial
  2. Review
  3. Hyperreflective material evolution patterns during long term anti-VEGF therapy in neovascular age-related macular degeneration.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
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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

8 authors at 3 institutions in 1 country.

Rebecca N EvansClinical Trials and Evaluation Unit, Bristol Trials Centre, Bristol Medical School, University of Bristol, Bristol, United Kingdom.
Barnaby C ReevesClinical Trials and Evaluation Unit, Bristol Trials Centre, Bristol Medical School, University of Bristol, Bristol, United Kingdom.
Dawn PhillipsClinical Trials and Evaluation Unit, Bristol Trials Centre, Bristol Medical School, University of Bristol, Bristol, United Kingdom.
Katherine Alyson MuldrewQueen's University of Belfast, Royal Victoria Hospital, Belfast, Ireland.
Chris RogersClinical Trials and Evaluation Unit, Bristol Trials Centre, Bristol Medical School, University of Bristol, Bristol, United Kingdom.
Simon P HardingDepartment of Eye and Vision Science, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom.
Usha ChakravarthyQueen's University of Belfast, Royal Victoria Hospital, Belfast, Ireland. Electronic address: u.chakravarthy@qub.ac.uk.
IVAN Study Group
At Bristol · GBUniversity of Liverpool · GBUniversity of Ulster · GB

Funding

Department of Health 07/36/01
6 · The paper itself

Abstract

purposeTo describe visual outcomes, frequency of treatment and monitoring visits, and anti-vascular endothelial growth factor drugs used in usual care in participants who exited a trial in which treatment for neovascular age-related macular degeneration (nAMD) was initiated with bevacizumab or ranibizumab.

designMulticenter cohort study up to 7 years after trial exit.

participantsPatients enrolled in the Inhibition of VEGF in Age-related choroidal Neovascularisation (IVAN) trial; after excluding participants from 2 sites and who died or withdrew during the trial, 537 were included in this follow-up cohort.

methodsData were collected between May 26, 2016, and August 24, 2017. Distance visual acuity (DVA) (letters read) in both eyes and treatments for nAMD administered to either eye at all usual care visits were extracted from medical records of all participants until the point of data collection (duration of study eye monitoring).

main outcome measuresRate of change of DVA during active surveillance of the study eye (study eye monitoring), estimated using a multivariable linear random effects model. Other outcome measures were visit and treatment frequency and switches in anti-vascular endothelial growth factor (VEGF) drug.

resultsData were obtained for 99% (532/537) of eligible participants. The median duration of study eye monitoring after IVAN exit was 3.3 years (interquartile range [IQR], 1.3-4.7), and median DVA was 58.0 letters (IQR, 34.0-73.0). Study eye DVA deteriorated by 4.3 (95% confidence interval [CI], 3.7-4.9) letters per year. Injection rate did not influence the rate of change in DVA after adjusting for key covariates. After IVAN exit, 174 participants (32%) received no treatment; 332 of 358 (93%) were treated first with ranibizumab, 78 (23%) of whom switched to aflibercept. The DVA was similar among participants who switched or did not switch at the end of study monitoring.

conclusionsApproximately 5 years after the IVAN study finished, with unprecedented completeness of follow-up for such a trial, the trajectory of functional decline in the study eye was shown to be greater than that previously reported for incomplete trial cohorts. Anti-VEGF injection rates and treatment switches were not important factors in determining visual acuity outcomes.

Indexed as

AgedAged, 80 and overAngiogenesis InhibitorsBevacizumabChoroidal NeovascularizationFemaleFollow-Up StudiesHumansIntravitreal InjectionsMaleMiddle AgedPatient ParticipationRanibizumabSickness Impact ProfileSurveys and QuestionnairesTreatment OutcomeAngiogenesis InhibitorsBevacizumabRanibizumabVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID32359843
PMCPMC7471837
OpenAlexW3013512820

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.