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Guardant Health and Quest Diagnostics Announce Strategic Collaboration to Broaden Access to Guardant’s Shield™ Blood-based Screening Test in the United States

Collaboration to enable streamlined and accelerated access to Shield blood-based colorectal cancer screening test across Quest’s vast network PALO ALTO,

articleGuardant Health, Inc.September 24, 20253/company/guardant-health-inc/news/guardant-health-and-quest-diagnostics-announce-strategic-collaboration-broaden-access
Guardant Health and Quest Diagnostics Announce Strategic Collaboration to Broaden Access to Guardant’s Shield™ Blood-based Screening Test in the United States

About this update from Guardant Health, Inc.

[{"type":"text","content":"\nCollaboration to enable streamlined and accelerated access to Shield blood-based colorectal cancer screening test across Quest’s vast network\n\n\n PALO ALTO, Calif. & SECAUCUS, N.J.--(BUSINESS WIRE)--\nGuardant Health, Inc. (Nasdaq: GH), a leading precision oncology company, and Quest Diagnostics (NYSE: DGX), a leader in diagnostic information services, today announced a broad strategic collaboration to make Guardant’s Shield™ blood-based screening test available to physicians and patients served by Quest in the United States.\n\n\nShield is the first and only blood test to receive full FDA approval as a primary screening option for colorectal cancer in average-risk adults aged 45 and older. Through a multi-year agreement, Quest’s provider clients that order lab testing from Quest will be able to directly order Shield through their existing Quest account and electronic health record (EHR). Quest provided healthcare connectivity solutions to approximately 650,000 clinician and hospital accounts last year. Quest’s provider clients will also be able to refer patients to Quest’s 2,000 patient service centers and 6,000 in-office phlebotomists for blood draws in the United States. In addition, Quest’s national commercial sales team will proactively educate primary care physicians and obstetricians and gynecologists about the test, accelerating awareness among Quest’s ordering providers. Shield is expected to be available for physician order through Quest in the first quarter of 2026.\n\n\n“Shield makes cancer screening pleasant and convenient, through just a simple blood draw. Our strategic collaboration with Quest represents a pivotal step in accelerating access to this groundbreaking technology, enabling primary care physicians across the country to offer their patients the lifesaving benefits of early detection,” said AmirAli Talasaz, Guardant Health co-CEO. “By rapidly scaling Shield’s lifesaving innovation through Quest’s nationwide network, we will strengthen our ability to fundamentally change the trajectory of the disease.\"\n\n\n“This collaboration reinforces our commitment to expanding our oncology offering to include cutting-edge screening technology for diseases, like colorectal cancer, that can often be prevented when caught early,” Jim Davis, Chairman, CEO and President, Quest Diagnostics, said. “A blood-based test fo...

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