NCT00280332已完成不适用
A Follow-up Colonoscopy Examination in Patients Who Had Previously Undergone Screening Colonoscopy
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 560
- 试验地点
- 1
- 主要终点
- The prevalence of advanced colonic adenoma in the re-screening population
研究概览
简要总结
- To determine the prevalence of colonic neoplasm in patients who had previously undergone screening colonoscopy
- To determine the optimal time interval for re-screening in average risk individuals
- To determine potential baseline characteristics that predicts adenoma recurrence
详细描述
Colorectal cancer (CRC) is the second commonest cancer in Hong Kong, and tends to be increasing. Screening for colorectal cancer can reduce the cancer incidence and mortality by detecting early lesions. However, the best interval for a follow up colonoscopy, particularly for those with normal baseline colonoscopy, remains largely unknown.
This study aim to determine the prevalence of colonic neoplasm in average-risk patients who had previously undergone screening colonoscopy and the optimal time interval for re-screening.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 50 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Subjects who are previously participated in one of our two screening colonoscopy studies [Sung, Gastroenterol 2003; Leung, AJG 2004]
- •Asymptomatic on first screening colonoscopy
- •Age>50and <75
- •No family history of CRC
- •No other colonoscopy except the baseline screening colonoscopy
排除标准
- •Subjects who refused consent
- •Subjects who are not warrant follow up colonoscopy
结局指标
主要结局
The prevalence of advanced colonic adenoma in the re-screening population
时间窗: 5 year from index colonoscopy
次要结局
- The time to adenoma adenoma development according to different baseline characteristics of patients and colonoscopy findings(5 years from index colonoscopy)
研究者
研究点 (1)
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