Guardant360® CDx Liquid Biopsy CE-Marked for Comprehensive Tumor Mutation Profiling Across All Solid Cancers

The Guardant360 CDx test offers patients and clinicians a simple, faster blood test to help inform personalized treatment options. The Guardant360 CDx received U.S. FDA approval in August 2020.

“Gaining the CE-mark for our Guardant360 CDx test is an important step to making our test more widely accessible to patients around the world. We are committed to helping cancer patients be comprehensively tested to see if they are appropriate for potentially life-changing personalized treatments,” said Helmy Eltoukhy, Guardant Health CEO.

The World Health Organization estimates over 10 million cancer deaths in 2020,¹ many of whom may have benefitted from CGP to guide a more personalized treatment plan based on a growing list of effective CGP-informed targeted therapies. Clinical studies show that patients receiving targeted therapies have improved progression-free survival and higher overall response rates relative to chemotherapy or immunotherapy.^2-8 Clinical adoption of targeted therapies lags behind medical guidelines due to several factors, including insufficient tissue for biopsy, which is the case for as many as 30 percent of solid cancer patients.^9-11

Since the company’s inception, Guardant Health has been dedicated to unlocking the potential of liquid biopsy to transform cancer by enabling precision oncology at all stages of the disease. The FDA approval and CE-marking of Guardant360 CDx for tumor mutation profiling and as a companion diagnostic for Tagrisso (osimertinib) represents a critical milestone in the company’s mission to conquer cancer with data. The Guardant360 CDx is also being developed as a companion diagnostic for investigational products in development by other collaborators, including Amgen, Janssen Biotech, Inc., and Radius Health, Inc.

About Guardant Health

Guardant Health is a leading precision oncology company focused on helping conquer cancer globally through use of its proprietary blood tests, vast data sets and advanced analytics. The Guardant Health oncology platform leverages capabilities to drive commercial adoption, improve patient clinical outcomes and lower healthcare costs across all stages of the cancer care continuum. Guardant Health has commercially launched liquid biopsy-based Guardant360^®, Guardant360 CDx, and GuardantOMNI^® tests for advanced stage cancer patients, and Guardant Reveal^™ for early-stage cancer patients. These tests fuel development of its LUNAR screening program, which aims to address the needs of asymptomatic individuals eligible for cancer screening and individuals at a higher risk for developing cancer with early detection.

Forward-looking Statements

This press release contains forward-looking statements within the meaning of federal securities laws, including statements regarding the potential utilities, values, benefits and advantages of the Guardant360 CDx, which involve risks and uncertainties that could cause the actual results to differ materially from the anticipated results and expectations expressed in these forward-looking statements. These statements are based on current expectations, forecasts and assumptions, and actual outcomes and results could differ materially from these statements due to a number of factors. These and additional risks and uncertainties that could affect Guardant Health’s financial and operating results and cause actual results to differ materially from those indicated by the forward-looking statements made in this press release include those discussed under the captions “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operation” and elsewhere in its Annual Report on Form 10-K for the year ended December 31, 2020, in its other reports filed with the Securities and Exchange Commission, including when filed, its Quarterly Report on Form 10-K for the period ended March 31, 2021. The forward-looking statements in this press release are based on information available to Guardant Health as of the date hereof, and Guardant Health disclaims any obligation to update any forward-looking statements provided to reflect any change in its expectations or any change in events, conditions, or circumstances on which any such statement is based, except as required by law. These forward-looking statements should not be relied upon as representing Guardant Health’s views as of any date subsequent to the date of this press release.

REFERENCES

1. International Agency for Research on Cancer (IARC). World Health Organization. https://lims.ghdna.io/ghlims/logon.jsp. Accessed March 1, 2021.
2. Shaw AT, Riely GJ, Bang Y-J, et al. Crizotinib in ROS1-rearranged advanced non-small-cell lung cancer (NSCLC): updated results, including overall survival, from PROFILE 1001. Ann Oncol. 2019;30(7):1121-1126.
3. Ramalingam SS, Gray JE, Ohe Y, et al. Osimertinib vs comparator EGFR-TKI as first-line treatment for EGFRm advanced NSCLC (FLAURA): Final overall survival analysis. Ann Oncol. 2019;30(5): v851-v934.
4. Garon EB, Hellmann MD, Costa EC, et al. Five-year long-term overall survival for patients with advanced NSCLC treated with pembrolizumab: Results from KEYNOTE-001. J Clin Oncol. 2019;37(28):2518-2527.
5. Camidge DR, Dziadziuszko R, Peters S, et al. Updated Efficacy and Safety Data and Impact of the EML4-ALK Fusion Variant on the Efficacy of Alectinib in Untreated ALK-Positive Advanced Non–Small Cell Lung Cancer in the Global Phase III ALEX Study. J Thorac Oncol. 2019;14(7):1233-1243.
6. https://www.hcp.novartis.com/products/tafinlar-mekinist/metastatic-nsclc/efficacy/. Accessed March 1, 2021.
7. Gadgeel SM, Garassino MC, Esteban E, et al. KEYNOTE-189: Updated OS and progression after the next line of therapy (PFS2) with pembrolizumab (pembro) plus chemo with pemetrexed and platinum vs placebo plus chemo for metastatic nonsquamous NSCLC. J Clin Oncol. 2019;37(suppl; abstr 9013).
8. Sandler A, Gray R, Perry MC, et al. Paclitaxel-carboplatin alone or with bevacizumab for non-small-cell lung cancer. N Engl J Med. 2006;14;355(24):2542-2550.
9. Hagemann IS, Devarakonda S, Lockwood CM, et al. Clinical Next-Generation Sequencing in Patients with Non–Small Cell Lung Cancer. Cancer. 2015;121:631-639.
10. Parsons HA, Beaver JA, Cimino-Mathews A, et al. Individualized Molecular Analyses Guide Efforts (IMAGE): A Prospective Study of Molecular Profiling of Tissue and Blood in Metastatic Triple-Negative Breast Cancer. Cancer Res. 2017;23(2); 379–386.
11. Wyatt AW, Annala M, Aggarwal R, et al. Concordance of Circulating Tumor DNA and Matched Metastatic Tissue Biopsy in Prostate Cancer. J Natl Cancer Inst. 2018;110(1):djx118

Source: Guardant Health, Inc.

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