Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-26 @ 10:58 AM
Ignite Modification Date:
2025-12-26 @ 10:58 AM
NCT ID:
NCT00523406
Brief Summary:
To assess the CNV treatment effect of PDT with verteporfin in combination with IVTA using reduced fluence compared to the standard fluence.
Detailed Description:
Age-related macular degeneration (AMD) is by far the most common disorder in the group of irreversible causes of visual disability. AMD leads to dysfunction and loss of photoreceptors in the central retina. Neovascular AMD affects visual function early in the disease process and severely compromises the highly developed functions of the macula, such as perception of details, central fixation, color vision, and reading ability. AMD-related visual impairment is associated with a loss of autonomy and quality of life. Currently, laser photocoagulation, photodynamic therapy (PDT) with verteporfin usually combined with intravitreal triamcinolone acetonide (IVTA) are the only proved treatments for subfoveal choroidal neovascularisation (CNV). Laser photocoagulation is limited to selected cases. Photodynamic therapy using verteporfin provides very promising data regarding improvement of visual acuity and absence of fluorescein leakage. PDT was recently successfully combined with an intravitreal injection of the corticosteroid triamcinolone acetonide. Yet, PDT also leads to damage to surrounding normal choroidal vessels. A pilot trial comparing low fluence (300 mW/cm²) with standard fluence (600 mW/cm²) demonstrated a trend for improved outcomes using the low fluence regimen (VIM study). However, vascular mechanisms and choroidal damage were not examined, and the study group was too small to evaluate vision outcome parameters. Combined with the IVTA, the low fluence effects of PDT may be sufficient for CNV occlusion and the physiological choroids should be spared from any collateral damage. The aim of this study was to compare reduced fluence with standard fluence PDT using verteporfin and IVTA for CNV secondary to AMD.
Study:
NCT00523406
Study Brief:
Protocol Section:
NCT00523406