FDA APPROVED FOR COLON
CANCER SCREENING

Shield In the News

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Close the Gap: Disparities in Cancer Screening Threaten Lives

February marks National Cancer Prevention Month, an initiative to bring awareness to ways Americans can reduce their risk for cancer

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Development of a Highly-Sensitive Targeted Cell-Free DNA Epigenomic Assay for Early-Stage Multi-Cancer Screening

A blood-based cancer screening test should exhibit performance metrics optimized for the cancer of interest

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Guardant Health Announces Shield™ Blood Test Available in US to Detect Early Signs of Colorectal Cancer in Average-Risk Adults

Highly sensitive Shield test offers convenient screening method that can be completed with simple blood draw

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Validation of a multimodal blood-based test for the detection of colorectal cancer with sub single molecule sensitivity

Blood-based colorectal cancer (CRC) screening tests can improve adherence to screening guidelines

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Guardant Health announces positive results from pivotal ECLIPSE study evaluating a blood test for the detection of colorectal cancer

Study demonstrates 83% sensitivity for detection of colorectal cancer with specificity of 90%

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Guardant Health ECLIPSE Study Data Demonstrating Efficacy of Shield Blood-based Test for Colorectal Cancer Screening Published in The New England Journal of Medicine

ECLIPSE validates Shield as an accurate screening method for CRC

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Guardant Health’s Shield™ Blood Test Approved by FDA as a Primary Screening Option, Clearing Path for Medicare Reimbursement and a New Era of Colorectal Cancer Screening

Blood test offers easy, convenient and pleasant screening option with potential for improving colorectal cancer screening rates

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Guardant Health’s Shield™ Blood Test Named to TIME’s List of the Best Inventions of 2024

TIME’s annual list of the Best Inventions features 200 extraordinary innovations changing lives

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The 50 greatest innovations of 2024

Shield™ announced as Popular Science's 2024 Health category winner

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Shield™ featured on Health Uncensored with Dr. Drew

Guardant VP of Clinical Development Sam Asgarian discusses the vital importance of early detection

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Guardant Health Wins Fast Company’s 2025 World Changing Ideas Award for Shield Blood Test for Colorectal Cancer Screening

Guardant Health's Shield blood test for colorectal cancer (CRC) screening has been named a winner of Fast Company’s 2025 World Changing Ideas Awards

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Important Product Information

Intended Use

The Shield™ Blood Test is a qualitative, in vitro diagnostic test intended to detect colorectal cancer derived alterations in cell-free DNA from blood collected in the Guardant Shield Blood Collection Kit.
Shield is intended for colorectal cancer screening in individuals at average risk for the disease, age 45 years or older. Patients with a positive result should be followed by colonoscopy. Shield is not a replacement for diagnostic colonoscopy or for surveillance colonoscopy in high-risk individuals. This test is performed at Guardant Health, Inc.

Precaution: Based on data from clinical studies, Shield has limited detection (55%-65%) of Stage I colorectal cancer and does not detect 87% of precancerous lesions. One out of 10 patients with a negative Shield result may have a precancer that would have been detected by a screening colonoscopy. Shield demonstrated high detection of Stages II, III, and IV colorectal cancer.

Limitations and Other Important Information: The Shield test is not indicated for patients that have personal history of colorectal cancer, adenomas, or other related cancers; or those who had a positive result on another colorectal cancer screening method within the last six months, have been diagnosed with a condition associated with high risk for colorectal cancer such as Inflammatory Bowel Disease (IBD), chronic ulcerative colitis (CUC), Crohn’s disease; or who have a family history of colorectal cancer, or certain hereditary syndromes. Providers should discuss the most appropriate screening test to use with patients depending on their medical history and individual circumstances. Shield may produce a false negative or false positive result. A false negative result may occur when the Shield test does not detect a colorectal tumor signal while a colonoscopy identifies a colorectal cancer. A negative result does not guarantee the absence of colorectal cancer or advanced adenoma, and patients should continue participating in colorectal cancer screening programs at the appropriate guideline-recommended intervals. A false positive result may occur when the Shield test generates a positive result while a colonoscopy will not find colorectal cancer or advanced adenoma.

Please read our Provider Brochure for complete product information about the Shield test including full safety information.