Early detection of neovascular age-related macular degeneration: an economic evaluation based on data from the EDNA study

Rodolfo Hernández, Katie Banister, Beatriz Goulao, Jonathan Cook, Sobha Sivaprasad, Ruth E Hogg, Augusto Azuara-Blanco, Heinrich Heimann, Maria Petrova Dimitrova, Richard Gale, Mia Porteous, Craig Ramsay, Usha Chakravarthy, Graham Scotland* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Background/Aims: To evaluate the cost-effectiveness of non-invasive monitoring tests to detect the onset of neovascular age-related macular degeneration (nAMD) in the unaffected second eye of patients receiving treatment for unilateral nAMD in a UK NHS hospital outpatient setting.
Methods: A patient-level state transition model was constructed to simulate the onset, detection, and treatment of nAMD in the second eye. Five index tests were compared: self-reported change in visual
function, Amsler test, clinic measured change in visual acuity from baseline, fundus assessment by clinical examination or colour photography, and spectral domain optical coherence tomography (SDOCT). Diagnosis of nAMD was confirmed by fundus fluorescein angiography (FFA) before prompt initiation of anti-vascular endothelial growth factor treatment. Quality adjusted life years (QALYs)
and costs of health and social care were modelled over a 25-year time horizon.
Results: SD-OCT generated more QALYs (SD-OCT, 5.830; fundus assessment, 5.787; Amsler grid, 5.736, patient’s subjective assessment, 5.630; and visual acuity, 5.600) and lower health and social care costs (SD-OCT, £19,406; fundus assessment, £19,649; Amsler grid, £19,751; patient’s subjective assessment, £20,198; and visual acuity, £20,444) per patient compared to other individual monitoring tests. Probabilistic sensitivity analysis indicated a high probability (97-99%) of SD-OCT being the preferred test across a range of cost-effectiveness thresholds (£13,000-£30,000) applied in the UK
NHS.
Conclusions: Early treatment of the second eye following FFA confirmation of SD-OCT positive
findings is expected to maintain better visual acuity and health related quality of life and reduce costs of health and social care over the lifetime of patients.
Original languageEnglish
JournalBritish Journal of Ophthalmology
Early online date2 Aug 2021
DOIs
Publication statusE-pub ahead of print - 2 Aug 2021

Keywords

  • age-related macular degeneration
  • cost-effectiveness
  • health economics

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