OUTCOMES OF PATIENTS WITH EXUDATIVE AGE-RELATED MACULAR DEGENERATION TREATED WITH ANTIVASCULAR ENDOTHELIAL GROWTH FACTOR THERAPY FOR THREE OR MORE YEARS: A Review of Current Outcomes

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Abstract

Purpose:

To summarize the findings of long-term outcomes of anti-vascular endothelial growth factor (VEGF) therapy (≥36 months) in patients with exudative age-related macular degeneration.

Methods:

Studies reporting long-term outcomes (≥36 months) of anti-VEGF therapy (n = 11) were identified and analyzed for changes in visual acuity (VA), optical coherence tomography, and safety findings.

Results:

Six prospective extension studies of Phase 3 clinical trials and five retrospective evaluation studies were identified. The largest improvements in VA with anti-VEGF treatment were found in Years 1 to 2 after treatment initiation. In five studies, VA ultimately declined below patients' pretreatment initial baseline; in three studies, VA ultimately returned to patients' baseline; in three studies, VA decreased but ultimately remained improved over patients' baseline. There was a trend demonstrating that a higher frequency of intravitreous injections showed a better maintenance in VA. Rates of adverse events were similar to previous registration studies of anti-VEGF drugs.

Conclusion:

The body of evidence to date regarding long-term anti-VEGF treatment indicates a variable course at greater than 36 months follow-up and seems to be dependent on the treatment protocol. Consistent dosing with fluid-free interval is suggested to maintain VA gains in patients with exudative age-related macular degeneration. There is no evidence suggesting that there are additional adverse events from long-term anti-VEGF use.

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