How does aspirin affect the prognosis of colon cancer?

Updated: Apr 15, 2020
  • Author: Tomislav Dragovich, MD, PhD; Chief Editor: N Joseph Espat, MD, MS, FACS  more...
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A review of eight trials by Rothwell et al found that allocation to aspirin reduced death caused by cancer. Benefit was apparent after 5 years of follow-up. The 20-year risk of cancer death was also lower in the aspirin group for all solid cancers. A latent period of 5 years was observed before risk of death was decreased for esophageal, pancreatic, brain, and lung cancers. A more delayed latent period was observed for stomach, colorectal, and prostate cancer. The overall effect on 20-year risk of cancer death was greatest for adenocarcinomas. [41]

A study by Burn et al found that 600 mg of aspirin per day for a mean of 25 months reduced cancer incidence after 55.7 months among known carriers of hereditary colorectal cancer. However, further studies are needed to determine the optimum dose and duration of treatment. [42]

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