Colon cancer screenings: what to know about newly approved blood test

COLUMBUS, Ohio (WCMH) - A blood test has been approved by the U.S. Food and Drug Administration to help screen for colorectal cancer.

In July, the FDA approved the blood test called Shield, from Guardant Health. The test does not replace a colonoscopy but gives patients another choice to get screened for the disease, while improving screening rates.

According to the company, the blood test is for adults 45 and older who are at average risk for the disease. The Shield tests are available for eligible patients by prescription through a doctor or healthcare provider.

The company statement said the test is expected to be covered for eligible Medicare beneficiaries, along with increased coverage by private and government insurance.

Electra Paskett, who's a deputy director for population sciences and community outreach of Ohio State's Comprehensive Cancer Center, noted it's part of a research study with the Shield test. Paskett said the study is looking to see if those in minority or underserved populations would accept the blood test for colon cancer screening.

"We go to community fairs, we go out and ask people who are 45 and older if they need a colon screening test and if they would like to participate in this research study where they can get their Guardant Shield test for free for participating in the study," said Paskett. "The study is going well."

While new tests provide options for screenings, colon cancer cases are still rising in younger patients who are 45 and younger. Paskett noted that screening guidelines start for those who are 45 years older for all of the tests, but anyone who notices a change in their bowel habits or stool should see a doctor.

Paskett, whose father died from colon cancer, is also an advocate for early detection and advises anyone who has symptoms like bleeding should get a colonoscopy.

"I'm very passionate about people going in and getting tests, so that they can find a polyp, remove the polyp, kick cancer in the rear and prevent the cancer," said Paskett. "Get it tested early and survive."