Association for Innovation and Biomedical Research on Light and Image
This is a multicentre retrospective and prospective cohort study with the goal to develop a well-characterised multimodal image database of eyes with intermediate AMD with and without early atrophy. The main objectives are: Develop a collaborative well-characterised database on intermediate AMD with or without early atrophy. Grading of these images to explore imaging markers of progression. Develop predictive models as a secondary analysis of our dataset. This study will recruit around 1.000 eyes in 6 months. All consenting patients who have had at least 3 clinic visits with multimodal imaging done at least at 6 months interval between 2 visits and meet the inclusion and exclusion criteria will be included in the study for retrospective data collection. Those with one visit remaining to complete 2 years, images will be acquired prospectively. In addition to the images, routine demographic data (age and sex) and available visual acuity (VA) (BCVA if possible, VA with Pinhole or VA with patient's glasses) will be collected. Multimodal imaging includes mandated macular OCT with or without enhanced depth imaging and infrared imaging. Fundus autofluorescence (AF) and multicolor imaging are optional. All imaging must be done on Heidelberg Spectralis system.
Age Related Macular Degeneration
Intermediate AMD
Atrophy
Prediction
Collection of both retrospective and prospective data collection in 3 visits.
Age-related macular degeneration (AMD) is the commonest cause of visual impairment in older people in Europe. It is a slowly progressing complex disorder. The clinical progression is best described as early, intermediate, and advanced based on the latest classification system on colour fundus photographs. However, multimodal imaging has enabled visualisation of further changes in the retina on optical coherence tomography (OCT), infrared imaging, and autofluorescence. So, a large database of imaging data of intermediate AMD will facilitate researchers to study the disease progression in detail. This study is a collaborative effort by investigators across many Member Sites in Europe that are members of EVICR.net to pool datasets for secondary analysis. EVICR.net is a network of Ophthalmological Clinical Research Sites, dedicated to performing multinational clinical research in ophthalmology with the highest standards of quality, following the European and International Directives for Clinical Research in order to strengthen the capacity of the European Union to study the determinants of ophthalmic diseases and to develop and optimise the use of diagnostic, prevention and treatment strategies in ophthalmology. EVICR.net Eye Platform is a long-term initiative to establish a platform to gather high quality ophthalmology data generated in Europe and allow the secondary use of data in performing large data analysis and foster clinical research. With this Eye Platform EVICR.net aims to provide technological solutions that allow overcoming privacy and regulation issues associated with the sharing of data from different institutions/countries, in a secure, easy to use manner. With EVICR.net Eye Platform, the Members Sites will have the opportunity to participate in clinical research with secondary use data analysis; Authorship of publications and presentations of Results; the opportunity to propose new analysis to answer key research questions; and increase overall visibility and stature as researchers Background: On colour fundus photographs, drusen size and changes in retinal pigment epithelium are used to classify the severity of AMD into early, intermediate and advanced stages.Early AMD is characterised by medium sized drusen of 63 µm to 124 µm with no RPE changes. Intermediate AMD include large drusen (≥125 µm) or medium-sized drusen with pigmentary changes. These eyes with intermediate AMD have a high risk of progression to advanced AMD, including either geographic atrophy or exudative AMD due to macular neovascularisation (MNV). Visual deterioration is seen in these two advanced stages. Therefore, there is an unmet need to identify those at risk of disease progression to advanced AMD so that preventive options can be evaluated and implemented. However, a significant amount of research is required to better understand the risk of disease progression. With the advent of multimodal imaging, there is growing evidence of new imaging markers of disease progression in eyes with intermediate AMD. For example, on infrared reflectance (IR), optical coherence tomography (OCT) and autofluorescence (AF), subretinal drusenoid deposits (SDD) are seen in some eyes with intermediate AMD and these have been identified as a predictor of fast progression to advanced AMD. Multimodal images have also shown that early atrophic changes may occur in intermediate AMD before the classical diagnosis of atrophy seen as hypoautofluorescence on AF. The Classification of Atrophy Meetings (CAM) group defined a few imaging characteristics as precursors of geographic atrophy and designated them together as incomplete retinal pigment epithelium and outer retinal atrophy (iRORA). A region of signal hypertransmission into the choroid of <250um, a corresponding zone of attenuation or disruption of the RPE, with or without the persistence of basal laminar deposits (BLamD) and evidence of overlying photoreceptor degeneration, i.e., subsidence of the inner nuclear layer (INL) and outer plexiform (OPL), presence of a hyporeflective wedge in the Henle fiber layer (HFL), thinning of the outer nuclear layer (ONL), disruption of the external limiting membrane (ELM), or disintegrity of the ellipsoid zone (EZ), and when these criteria do not meet the definition of complete retinal pigment epithelium and outer retinal atrophy (cRORA) that defines geographic atrophy on colour photographs. cRORA is defined as zone of hyper transmission of ≥250 µm, zone of attenuation or disruption of RPE band of ≥250 µm with evidence of overlying photoreceptor degeneration characterised by features that include outer nuclear layer (ONL) thinning, external limiting membrane (ELM) loss, and ellipsoid zone (EZ) or interdigitating zone (IZ) loss. Multimodal imaging also showed that drusen sizes on OCT are indeed larger than visualised on colour photographs. On en-face OCT, large drusen is defined as drusen diameter ≥145 µm, medium drusen diameters 100 µm to 144 µm, and small drusen diameters <100 µm. So, these markers and other novel imaging characteristics may better predict disease progression from intermediate AMD.However, a large multimodal image resource is required to develop such prediction models. The Heidelberg Spectralis device enables multimodal imaging, and the OCT scans can be segmented by in-built automated Heidelberg software and manually corrected where necessary. So, a large database of Heidelberg imaging data of intermediate AMD will facilitate researchers to study the disease progression in detail.}}
Study Type : | Observational |
Estimated Enrollment : | 1000 participants |
Official Title : | A Collaborative Resource of Heidelberg Multimodal Imaging of Intermediate and Early Atrophic AMD Cases to Study Prediction of Disease Progression: (INTERCEPT-AMD) |
Actual Study Start Date : | May 4, 2023 |
Estimated Primary Completion Date : | February 22, 2024 |
Estimated Study Completion Date : | April 30, 2025 |
Information not available for Arms and Intervention/treatment
Ages Eligible for Study: | |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Want to participate in this study, select a site at your convenience, send yourself email to get contact details and prescreening steps.
Not yet recruiting
Department of Ophthalmology, University Hospital, Nantes
Nantes, France,
Not yet recruiting
Department of Ophthalmology University of Bonn
Bonn, Germany,
Not yet recruiting
Department of Ophthalmology University of Freiburg
Freiburg, Germany,
Not yet recruiting
Department of Ophthalmology Justus/Liebig/University/Giessen
Giesen, Germany,
Not yet recruiting
Department of Ophthalmology St. Franziskus/Hospital Münster
Münster, Germany,
Not yet recruiting
Department of Ophthalmology University of Muenster Medical Center
Münster, Germany,
Not yet recruiting
Eye Clinic Sulzbach, Knappschaft Hospital Saar
Sulzbach, Germany,
Not yet recruiting
Royal Victoria Eye and Ear Research Foundation
Dublin, Ireland,
Not yet recruiting
Medical Retina Service, Operative Unit Ophthalmology / MultiMedica Spa (IRCCSMM)
Milan, Italy,
Not yet recruiting
Eye Unit, University Hospital Maggiore della Carità
Novara, Italy,
Not yet recruiting
Department of Ophthalmology University of Udine
Udine, Italy,
Not yet recruiting
Department of Ophthalmology Radboud University Medical Centre Nijmegen
Nijmegen, Netherlands,
Not yet recruiting
AIBILI-CEC (AIBILI- Clinical Trials Centre)
Coimbra, Portugal,
Not yet recruiting
Coimbra Medical Space
Coimbra, Portugal,
Not yet recruiting
Institute of Ophthalmology Dr. Gama Pinto
Lisboa, Portugal,
Not yet recruiting
Department of Ophthalmology Porto Medical School / Hospital S. João
Porto, Portugal,
Not yet recruiting
Catalan Retina Institute (ICR), Clinical Trial Unit
Barcelona, Spain,
Not yet recruiting
Instituto de la Mácula Centro Médico Teknon
Barcelona, Spain,
Not yet recruiting
Valles Ophthalmology Research, S.L.
Barcelona, Spain,
Not yet recruiting
AIKEN Ophthalmological Clinic / Aiken Foundation of the Valencian Community
Valencia, Spain,
Not yet recruiting
University Hospital Basel, University Eye Clinic, Basel
Basel, Switzerland,
Not yet recruiting
Swiss Visio Retina Research Center, Swiss Visio Montchoisi
Lausanne, Switzerland,
Not yet recruiting
Clinical Trial Unit, Dep. Ophth., Gloucestershire Hospitals NHS Foundation Trust
Cheltenham, United Kingdom,
Not yet recruiting
Clinical Eye Research Centre - St. Paul's Eye Unit, Royal Liverpool University Hospital
Liverpool, United Kingdom,
Not yet recruiting
NIHR Moorfields Clinical Research Facility, Moorfields Eye Hospital, NHS Foundation Trust
London, United Kingdom,