Evidence map›Paper›PMID 33077475›Full record

ArticleBMJ open diabetes research & care2020

Efficacy of intravitreal AFlibercept injection For Improvement of retinal Nonperfusion In diabeTic retinopathY (AFFINITY study).

Yoon Jeon Kim, Joon Hyung Yeo, Gisung Son, Hyojoo Kang, Yu Sub Sung, Joo Yong Lee, June-Gone Kim, Young Hee Yoon

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in BMJ open diabetes research & care, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03006081 (The Efficacy of Intravitreal Aflibercept Injection in Improvement of Retinal Nonperfusion in Patients With Diabetic Retinopathy), which is not on this map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.4field-weighted citation impact, top 17% 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.

NCT03006081 phase2completednot on this map

The Efficacy of Intravitreal Aflibercept Injection in Improvement of Retinal Nonperfusion in Patients With Diabetic Retinopathy

TypeinterventionalSponsorAsan Medical CenterRan2016 to 2018Enrolled38ConditionsDiabetic RetinopathyArmsIntravitreal Aflibercept injection
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 15 citations in OpenAlex.

  1. MAGIC: Study Design and Rationale for the Phase 2 Clinical Trial of Faricimab for Non-Proliferative Diabetic Retinopathy.Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde · 2026
    Trial
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  5. Association of predominant peripheral lesions with retinal microvasculature and risk of vitreous hemorrhage in proliferative diabetic retinopathy.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 4 institutions in 1 country.

Yoon Jeon KimDepartment of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.ORCID 0000-0003-4293-9641
Joon Hyung YeoDepartment of Ophthalmology, College of Medicine, Chung-Ang University, Seoul, Korea.
Gisung SonDepartment of Retina Service, Hangil Eye Hospital, Incheon, Korea.
Hyojoo KangDiabetic Retinopathy Clinic, Asan Medical Center, Seoul, Korea.
Yu Sub SungDepartment of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.ORCID 0000-0002-9215-735X
Joo Yong LeeDepartment of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
June-Gone KimDepartment of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Young Hee YoonDepartment of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea yhyoon@amc.seoul.kr.
Ulsan College · KRAsan Medical Center · KRChung-Ang University · KRNune Eye Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTo evaluate the effects of intravitreal aflibercept injection on retinal nonperfusion in patients with diabetic retinopathy (DR) using ultrawide field (UWF) fluorescein angiography (FA). RESEARCH DESIGN AND

methodsThirty-eight eyes of 38 consecutive patients with DR and substantial retinal nonperfusion (nonperfusion index (NPI): nonperfused/total gradable area >0.2) without macular edema were included in this prospective case series. Monthly injections of 2 mg aflibercept were given for 6 months. UWF-fundus photography and UWF-FA images were acquired at baseline, 6 months, and 12 months and evaluated by 2 masked, independent graders for the extent of retinal nonperfusion and vascular leakage. Twenty untreated fellow eyes were analyzed as controls.

resultsInter-grader agreement was strong (r=0.875) for NPI measurements. NPI was 0.46±0.10 at baseline; NPI was decreased to 0.43±0.08 (p=0.015) after 6 monthly injections of aflibercept and then slightly increased to 0.44±0.09 (p=0.123) after 6 months of observation. Vascular leakage also significantly decreased by 21.0% at 6 months (p=0.010). Untreated fellow eyes did not show significant changes in NPI and vascular leakage during follow-up. Reduction in retinal nonperfusion was associated with severe nonproliferative diabetic retinopathy (NPDR) (vs PDR, OR 19.119, p=0.025) and higher leakage index (per 0.1, OR 15.152, p=0.020).

conclusionsIntensive aflibercept treatment was effective in reducing retinal capillary nonperfusion in patients with DR without macular edema. Severe NPDR and profound vascular leakage were significantly associated with retinal reperfusion after aflibercept treatment. TRIAL REGISTRATION NUMBER: NCT03006081.

Indexed as

Diabetes MellitusDiabetic RetinopathyHumansProspective StudiesReceptors, Vascular Endothelial Growth FactorRecombinant Fusion ProteinsafliberceptReceptors, Vascular Endothelial Growth FactorRecombinant Fusion Proteinsdiabetes complicationsdiabetic retinopathy

Identifiers

PMID33077475
PMCPMC7574886
OpenAlexW3093243107

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.