Dexamethasone Intravitreal Implant as Adjunctive Therapy to Ranibizumab in Neovascular Age-Related Macular Degeneration: A Multicenter Randomized Controlled Trial

Ophthalmologica. 2015;234(1):40-54. doi: 10.1159/000381865. Epub 2015 Jun 18.

Abstract

Purpose: To evaluate the efficacy and safety of dexamethasone intravitreal implant 0.7 mg (DEX) as adjunctive therapy to ranibizumab in neovascular age-related macular degeneration (nvAMD).

Procedures: This was a 6-month, single-masked, multicenter study. Patients were randomized to DEX implant (n = 123) or sham procedure (n = 120) and received 2 protocol-mandated intravitreal ranibizumab injections. The main outcome measure was injection-free interval to first as-needed ranibizumab injection.

Results: DEX increased the injection-free interval versus sham (50th percentile, 34 vs. 29 days; 75th percentile, 85 vs. 56 days; p = 0.016). 8.3% of DEX versus 2.5% of sham-treated patients did not require rescue ranibizumab (p = 0.048). Visual acuity and retinal thickness outcomes were similar in DEX and sham-treated patients. Only reports of conjunctival hemorrhage (18.2 vs. 8.5%) and intraocular pressure elevation (13.2 vs. 4.2%) were significantly different in the DEX versus the sham treatment groups.

Conclusion: DEX reduced the need for adjunctive ranibizumab treatment and showed acceptable tolerability in nvAMD patients.

Publication types

  • Multicenter Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged, 80 and over
  • Angiogenesis Inhibitors / administration & dosage
  • Female
  • Fluorescein Angiography
  • Follow-Up Studies
  • Fundus Oculi
  • Humans
  • Intravitreal Injections
  • Male
  • Ranibizumab / administration & dosage*
  • Retrospective Studies
  • Time Factors
  • Tomography, Optical Coherence
  • Treatment Outcome
  • Visual Acuity*
  • Wet Macular Degeneration / diagnosis
  • Wet Macular Degeneration / drug therapy*

Substances

  • Angiogenesis Inhibitors
  • Ranibizumab