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Acta ophthalmologica

Combination treatment of photodynamic therapy with verteporfin and intravitreal ranibizumab in patients with retinal angiomatous proliferation.


PMID 23786546

Abstract

To investigate the efficacy and safety of initial photodynamic therapy (PDT) with a ranibizumab loading dose of three monthly intravitreal injections and a subsequent PRN ranibizumab regimen in the treatment of retinal angiomatous proliferation (RAP). In this 12-month prospective case series, 15 patients underwent PDT followed by 3 intravitreal ranibizumab injections at monthly intervals. At monthly follow-up examinations, further single ranibizumab injections were given in case of any intra- or subretinal fluid on optical coherence tomography (OCT), visual loss ≥5 letters or signs of activity on fluorescein or indocyanine green angiography. Best-corrected visual acuity (BCVA) improved from 58.1 ± 13.2 at baseline by 9.2 letters (SD ± 8.5; p = 0.004) at 6 months and by 8.7 letters (SD ± 11.4; p = 0.017) at 12 months. Neither at 6 nor at 12 months, any patient had lost ≥15 letters. The mean number of injections per patient was 4.8 (SD ± 1.4) in the first year of therapy after PDT. The average time to first retreatment was 3.7 months (range 1-7 months). No serious adverse events, such as endophthalmitis or retinal detachment, were noted. PDT with 3 ranibizumab loading injections and subsequent ranibizumab as needed resulted in a significant gain of 8.7 ± 11.4 letters at month 12. This regimen is safe and efficacious, but even in a population of mostly early stages of RAP, retreatment rates remained high.