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Coney JM, Zubricky R, Sinha SB, Sonbolian N, Zhou L, Hull TP, Lewis SA, Miller DG, Novak MA, Pendergast SD, Pham H, Platt SM, Rao LJ, Schartman JP, Singerman LJ, Donkor R, Fink M, McCoy J, Karcher H. Switching to brolucizumab: injection intervals and visual, anatomical and safety outcomes at 12 and 18 months in real-world eyes with neovascular age-related macular degeneration. Int J Retina Vitreous 2023; 9:8. [PMID: 36726178 PMCID: PMC9891747 DOI: 10.1186/s40942-023-00445-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 01/22/2023] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND The anti-vascular endothelial growth factor (anti-VEGF) injection interval influences treatment burden and compliance in neovascular age-related macular degeneration (nAMD). This real-world study investigates visual acuity (VA), injection-interval extension, central macular thickness (CMT) and safety in nAMD eyes switched to the anti-VEGF agent brolucizumab and followed for up to 18 months. METHODS This retrospective study included patients with nAMD who were switched from other anti-VEGF agents to brolucizumab only. Patient eyes were grouped into three nested cohorts with the overall cohort receiving ≥ 1 brolucizumab injection, the second receiving ≥ 3 brolucizumab injections with a follow-up period of ≥ 12 months and the third cohort receiving ≥ 3 brolucizumab injections with a follow-up period of ≥ 18 months. Study endpoints included changes from baseline at 12 or 18 months in VA, injection intervals, and CMT. Sub-group analyses were conducted using baseline injection interval length or baseline VA as qualifiers. RESULTS Overall, 482 eyes received ≥ 1 brolucizumab injection; 174 eyes received ≥ 3 brolucizumab injections with ≥ 12 months of follow-up, and 95 eyes received ≥ 3 brolucizumab injections with ≥ 18 months of follow-up. VA (mean [95% confidence intervals]) remained stable relative to baseline after 12 months (- 1.1 [- 3.7, 1.6] letters; p = 0.42) and 18 months (0.0 [- 3.1, 3.1] letters; p = 0.98) of brolucizumab treatment, respectively, and pre-switch injection intervals or baseline VA had no notable effect. Following the switch to brolucizumab, injection intervals were extended from baseline to month 12 by 26.9 (19.7, 34.0) days (p < 0.0001), and eyes with pre-switch injection intervals < 8 weeks were able to have their injection intervals extended by 23.6 days longer than eyes with pre-switch injection intervals ≥ 8 weeks. At 18 months, injection intervals were extended by 36.3 (25.6, 46.9) days (p < 0.0001) compared to baseline. Following switch to brolucizumab, CMT was reduced at both 12 and 18 months (12 months: - 35.2 (- 51.7, - 18.8) µm, p < 0.0001; 18 months: - 38.9 (- 54.3, - 22.0) µm, p < 0.0001). Intraocular inflammation-related adverse events were reported in 4.6% of brolucizumab-treated eyes. CONCLUSIONS This real-world study demonstrates that injection intervals may be significantly extended with maintained vision and reduced CMT in nAMD eyes switching to brolucizumab therapy from other anti-VEGFs.
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Affiliation(s)
- Joseph M. Coney
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | | | | | - Nina Sonbolian
- grid.419481.10000 0001 1515 9979Novartis AG, Basel, Switzerland
| | | | - Thomas P. Hull
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Shawn A. Lewis
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - David G. Miller
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Michael A. Novak
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Scott D. Pendergast
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Hang Pham
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Sean M. Platt
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Llewelyn J. Rao
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Jerome P. Schartman
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | | | - Richard Donkor
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Margaret Fink
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Jasmyne McCoy
- Retina Associates of Cleveland Inc, 24075 Commerce Park, Beachwood, OH 44122 USA
| | - Helene Karcher
- grid.419481.10000 0001 1515 9979Novartis AG, Basel, Switzerland
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