Table 2.
Comparison of vision and macular thickness at different time points between the innovator and biosimilar ranibizumab
| Variable | Innovator RBZ (n = 264) | Biosimilar RBZ (n = 69) | p value |
|---|---|---|---|
| BCVA comparisons (logMAR) | |||
| Baseline | 0.64 ± 0.39 | 0.71 ± 0.42 | 0.18 |
| 1 month | 0.48 ± 0.29** | 0.55 ± 0.30** | 0.32 |
| 3 months | 0.49 ± 0.39 | 0.49 ± 0.25 | 0.72 |
| 6 months | 0.47 ± 0.31 | 0.50 ± 0.29 | 0.61 |
| 9 months | 0.37 ± 0.32 (n = 134) | 0.47 ± 0.27 (n = 41) | 0.17 |
| 12 months | 0.38 ± 0.32 (n = 123) | 0.44 ± 0.26 (n = 35) | 0.25 |
| Final visual acuity* | 0.40 ± 0.36 | 0.44 ± 0.26 | 0.39 |
| BCVA | 0.24 ± 0.40 | 0.26 ± 0.34 | 0.71 |
| % 3 line loss | 18 (7%) | 1 (1.5%) | 0.14 |
| % 3 line gain | 114 (43%) | 32 (46%) | 0.63 |
| CMT comparisons (μm) | |||
| Baseline | 457 ± 172 | 434 ± 153 | 0.40 |
| 1 month | 364 ± 152** | 343 ± 126** | 0.88 |
| 3 months | 334 ± 147** | 306 ± 97** | 0.51 |
| 6 months | 346 ± 162 | 326 ± 159 | 0.62 |
| 9 months | 342 ± 161 (n = 134) | 316 ± 150 (n = 41) | 0.45 |
| 12 months | 341 ± 161 (n = 134) | 318 ± 150 (n = 41) | 0.58 |
| CMT final* | 337 ± 160 | 328 ± 137 | 0.83 |
| CMT | 120 ± 196 | 105 ± 187 | 0.69 |
* Any time period
** p < 0.05 compared to previous time point
RBZ ranibizumab, CMT central macular thickness