Early-Onset Colon Cancer Projected to Double by 2030

Early-Onset Colon Cancer Projected to Double by 2030

Jim Kling

May 12, 2022

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Early-onset colorectal cancer (CRC) affecting patients younger than 50 years has risen sharply since 1988 from 7.9 to 12.9 cases in 2015 per 100,000 people. The reason for the increase isn’t well understood.

The findings were highlighted in a recent review article published online in the New England Journal of Medicine. “It’s a national phenomenon and it’s also occurring in other parts of the developed world. We’re used to seeing mostly older people who have this diagnosis. Now we’re seeing a lot of younger people with this disease. It’s rather alarming,” said author Frank Sinicrope, MD, a medical oncologist with Mayo Clinic, Rochester, Minn.

The trend contrasts with a decline in later-onset CRC likely attributable to increases in screening. As a result of the two trends, but especially the increased number of early-onset cases, the median age of diagnosis dropped from 72 in the early 2000s to 66 today.

“Although patients with early-onset colorectal cancer are more likely to have a hereditary syndrome than those who have later-onset disease, most cases are sporadic, with no identifiable cause. Furthermore, somatic mutational profiling of early-onset colorectal cancers has not revealed previously unidentified or actionable alterations to inform our understanding of the pathogenesis of these cancers or to guide treatment,” he wrote in the review.

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