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  • Ranibizumab switch...

Ranibizumab switch from aflibercept in nAMD patients linked to deterioration in visual acuity: Study

Written By : Dr. Kamal Kant Kohli Published On 2022-09-22T20:00:54+05:30  |  Updated On 23 Sept 2022 11:56 AM IST
Ranibizumab switch from aflibercept in nAMD patients linked to deterioration in visual acuity: Study
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USA: Switching from aflibercept to ranibizumab resulted in a reduction in visual acuity and worse anatomic results in patients with neovascular age-related macular degeneration (nAMD), states a study published in Graefe's Archive for Clinical and Experimental Ophthalmology.

The most common cause of significant vision loss in people over 50 is age-related macular degeneration (AMD). Since ranibizumab was approved in 2006, VEGF inhibitors have significantly changed the course of treatment and accepted the standard of care for AMD. For the treatment of AMD, ranibizumab, bevacizumab, and aflibercept are now the most used anti-VEGF drugs. Despite the fact that these drugs have significantly and favourably changed how AMD is treated, there are still numerous financial and therapeutic restrictions with the existing treatment plans.

The authors aimed to compare the results of eyes with stable neovascular age-related macular degeneration who moved from aflibercept to ranibizumab to eyes who stayed on aflibercept for the same amount of time.

For this study, a total of 142 eyes were examined, with 71 placed in the switch group and 71 in the aflibercept group. As a result of concerns about intraocular inflammation (IOI) with aflibercept, eyes that switched from aflibercept to ranibizumab were found in this retrospective cohort analysis. Pre-switch, switch, and post-switch visits were used to collect data (P1, P2, P3). Similar information was acquired on eyes that were switch-eligible but remained on aflibercept, with the third visit being the "presumed switch." Outcome assessments included visual acuity (VA) and central foveal thickness (CFT).

Key highlights of the study:

  • The mean CFT increased in the switch group, going from 165.7 m at Sw to 184.7 m at P1 (p = 0.009), 180.9 m at P2 (p = 0.007), and 183.3 m at P3 (p = 0.004).
  • VA changed from logMAR 0.43 (20/54) at Sw to 0.49 (20/61) at P1 (p = 0.02), 0.54 (20/69) at P2 (p = 0.008), and 0.53 (20/68) at P3 (p = 0.04), all with significant p-values.
  • Over the same time span, there was no discernible change in CFT in the aflibercept group.
  • At the "presumed switch," VA changed from logMAR of 0.56 (20/72) to 0.58 (20/76) at P1 (p = 0.085), 0.62 (20/83) at P2 (p = 0.001), and 0.59 (20/77) at P3 (p = 0.14).

The researchers concluded that, when switched from aflibercept to ranibizumab, nAMD eyes that were stable or improving deteriorated, whereas those in a similar group that stayed on aflibercept were largely stable, suggesting a potential efficacy difference between the two medications.

REFERENCE

Salabati, M., Obeid, A., Mahmoudzadeh, R. et al. Outcomes after switching eyes that were stable on aflibercept to ranibizumab versus continuing aflibercept in neovascular age-related macular degeneration. Graefes Arch Clin Exp Ophthalmol 260, 2509–2516 (2022). https://doi.org/10.1007/s00417-022-05601-0

Ranibizumabafliberceptneovascular age-related macular degenerationGraefe
Source : Graefe's Archive for Clinical and Experimental Ophthalmology
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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