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Author Spotlight: Overcoming Anti-VEGF Resistance Through Advanced Vascular Morphology Assessment in Choroidal Neovascularization
Published on: August 11, 2023
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Characteristics of Patients Who Drop Out From Ranibizumab Therapy.
Lindsay A McGrath1, Lawrence R Lee
1From the *City Eye Centre, †University of Queensland, and ‡Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.
Summary
High dropout rates (34.5%) were observed in ranibizumab therapy for age-related macular degeneration. Patients living farther from the clinic and those with no other systemic diseases were more likely to discontinue treatment.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Pharmacotherapy
Background:
- Anti-vascular endothelial growth factor (VEGF) therapy is a standard first-line treatment for age-related macular degeneration (AMD).
- Frequent clinic visits and intravitreal injections associated with anti-VEGF therapy can pose a significant burden on patients.
- Understanding factors influencing treatment adherence is crucial for managing chronic eye conditions like AMD.
Purpose of the Study:
- To estimate the dropout rate of ranibizumab therapy in a real-world clinical setting.
- To identify patient characteristics associated with discontinuation of anti-VEGF treatment for AMD.
Main Methods:
- A retrospective case-control study was conducted.
- Data from 250 eyes treated with anti-VEGF therapy for choroidal neovascular membranes were analyzed.
- Patient demographics, distance from clinic, and presence of systemic diseases were compared between patients who dropped out and those who continued treatment.
Main Results:
- The overall dropout rate from ranibizumab therapy was 34.5%.
- Patients living more than 100 km from the clinic had a significantly higher dropout rate (50.0%) compared to those living within 100 km (28.0%).
- Patients with no other systemic diseases exhibited a higher dropout rate (48.7%) than those with comorbidities.
Conclusions:
- Geographical distance from the clinic and lack of comorbidities are significant factors associated with higher dropout rates in ranibizumab therapy for AMD.
- The findings highlight the need for targeted interventions to improve patient follow-up and treatment adherence.
- Addressing patient-related barriers is essential for optimizing outcomes in the management of blinding eye diseases.

