In Vitro Study on Donor Corneas Preservation in IRESTORE Storage Medium. A Post Marketing Interventional Study on Device
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 发起方
- 入组人数
- 15
- 试验地点
- 1
- 主要终点
- cell density
研究概览
简要总结
Donor corneas are harvested and then stored in the Eye Bank to maintain their viability until analysis and subsequent release for transplantation. The storage period of donor corneas is classified in terms of duration and storage temperature: short-intermediate cold (up to two weeks between 2 and 6°C) and long-term warm (up to 4 weeks between 31 and 37°C). Corneal tissues are initially collected and stored cold at 4°C. After evaluation they can be stored in cold storage medium until transplantation or placed in organ culture at 31°C. IRESTORE, a cold storage liquid, has recently become available.
详细描述
The device used in the study is classified as class II A (medium risk) The device iRestore Conservation, sterile liquid for the preservation of corneal grafts in hypothermic conditions up to 14 days. Consists of a 20 ml solution suitable for the temporary preservation of corneal tissues in hypothermia split into a cylindric, optical bottom glass vial, which provides specular microscope examination.
It contains dextran as Osmotic agent; sodium pyruvate, glucose as energy source; salts, aminoacids, vitamins as nutritional sources; gentamycin: 143 µg/mL as preservative system; HEPES, sodium bicarbonate as pH Buffer; Phenol red as pH indicator.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Prospective
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
cell density
时间窗: 7 days
endothelial cell density at day 7
次要结局
- cell density over time(days 1, 3, 7, 10, 14)
研究者
Roberto Ceccuzzi
MD
Fondazione IRCCS Policlinico San Matteo di Pavia