Effectiveness and Safety of Intravitreal Injection of Conbercept as an Initial Treatment for Exudative Circumscribed Choroidal Hemangioma

Ophthalmologica. 2020;243(6):436-443. doi: 10.1159/000505753. Epub 2020 Jan 7.

Abstract

Objective: To investigate the effectiveness and safety of intravitreal injection of conbercept (IVC) as the initial treatment for exudative circumscribed choroidal hemangioma (CCH).

Methods: Forty-two eyes of 42 patients received 3 monthly IVC (0.5 mg/0.05 mL) as the initial treatment. Three months later, the patients were assessed for further treatment including observation, reinjection of conbercept, laser photocoagulation (if the lesion was 3,000 μm away from the macular fovea), or photodynamic therapy (PDT; if the lesion was under the macular fovea). Anatomical and functional responses including best corrected visual acuity (BCVA), central foveal thickness (CFT), and tumor size were analyzed.

Results: Twenty-three patients (54.76%) were sensitive to the monotherapy of IVC. Fourteen patients (33.33%) were insensitive to IVC and underwent rescue laser photocoagulation, and 5 patients (11.90%) underwent rescue PDT due to insensitivity to IVC treatment at 3 months. For subgroup analysis, although no statistical difference was found for BCVA at any follow-up time point compared to baseline, an increasing tendency of BCVA was found in the IVC group (p> 0.05). The mean CFT decreased significantly from 427.13 ± 214.74 μm at baseline to 259.83 ± 61.68 μm at 6 months in the IVC group (p< 0.05). No influence on tumor size was found in the IVC group.

Conclusion: IVC as the initial treatment might be an option for exudative CCH.

Keywords: Circumscribed choroidal hemangioma; Conbercept; Laser photocoagulation; Photodynamic therapy.

MeSH terms

  • Choroid Neoplasms* / drug therapy
  • Hemangioma* / drug therapy
  • Humans
  • Intravitreal Injections
  • Recombinant Fusion Proteins* / administration & dosage
  • Retrospective Studies
  • Treatment Outcome
  • Visual Acuity

Substances

  • Recombinant Fusion Proteins
  • KH902 fusion protein