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  • Title: [Clinical management of adenomatous polyposis in patients with hereditary non-polyposis colorectal cancer and familial adenomatous polyposis].
    Author: Sheng JQ, Li SR, Yang XY, Zhang YH, Su H, Yu DL, Yan W, Geng HG.
    Journal: Zhonghua Yi Xue Za Zhi; 2006 Feb 28; 86(8):526-9. PubMed ID: 16681880.
    Abstract:
    OBJECTIVE: To investigate the validity and safety of different doses of non-steroidal anti-inflammatory drugs (NSAID) in attempting to maintain the regression of colorectal adenomas in patients with familial adenomatous polyposis (FAP) and hereditary nonpolyposis colorectal cancer (HNPCC). METHODS: Twenty-two FAP patients who were willing to receive celecoxib were randomly divided into 2 groups 400 mg/d group (n = 8, taking celecoxib 400 mg/d) and 200 mg/d group (n = 10, taking celecoxib 200 mg/d). Four FAP patients who refused celecoxib and selected aspirin 80 mg/d instead. Six HNPCC patients were given celecoxib 400 mg daily. The treatment lasted for 24 months in all groups. The efficacy was evaluated respectively by the number and grade of polyps by coloscopy every 3 months in the first year and every 6 months in the second year. RESULTS: Either dose of celecoxib could reduce polyps in the FAP patients, with a polyps reduction rate of 86.6% (280/323) in the 400 mg group, significantly higher than that in the 200 mg group [51.81% (129/249) of the aspirin group]. In 5 of the 6 HNPCC patients the polyps completely vanished after 9 months of treatment. Side effects, such as arrhythmia, angina pectoris, and nervous headache, were observed in the celecoxib 400 mg/d group. The side effects could be reversed by decreasing the dose of celecoxib or using aspirin instead. Only one patient in the celecoxib 200 mg/d group showed side effects. CONCLUSION: Celecoxib 400 mg daily is more effective but has more side effects. At first the patients should be treated with celecoxib 200 mg daily for a long time, or 400 mg/d in the first 6 months and then with a daily dose of 200 mg/d to maintain the treatment effects. Soluble aspirin has similar effects.
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