Prolaris Remains a Long-Standing Fixture in the Guidelines for 10th Year Running

SALT LAKE CITY, Dec. 09, 2024 (GLOBE NEWSWIRE) -- Myriad Genetics, Inc. (NASDAQ: MYGN), a leader in genetic testing and precision medicine, today announced that its Prolaris prostate cancer prognostic test continues to be classified by the National Comprehensive Cancer Network (NCCN) as an 'Advanced Tool' in the fight against prostate cancer1. Like other gene expression-based tests, Prolaris for many years has been included in NCCN guidelines with category 2A level of evidence, meaning its inclusion has support from at least 85% of members on the NCCN prostate panel2.

"The updated NCCN Prostate Cancer Guidelines continue to solidify Prolaris' market position," said Paul J. Diaz, President and CEO, Myriad Genetics. "While there have been certain mischaracterizations regarding the updated guidelines leading to confusion, extensive published evidence shows that Prolaris is a clinically recognized and effective tool in managing patients with prostate cancer. We are confident that our highly engaged clinicians will continue to see the guidelines as an additional reason to incorporate Prolaris in treatment decisions."

"Prolaris is the Only test developed in untreated patients and the Only test with two clinically validated thresholds. With its active surveillance threshold, Prolaris identifies the most appropriate patients for active surveillance across all biomarkers," said George Daneker, Jr. MD, President and Chief Clinical Officer, Oncology, Myriad Genetics. "With its multimodal threshold, Prolaris can identify which patients may consider treatment intensification3."

Myriad has published more than 25 studies demonstrating the value of Prolaris in clinical decision-making for prostate cancer. This year alone, multiple studies have been published and presented as further evidence of the clinical utility of the Prolaris test. In an independent prospective study, investigators validated the Prolaris score's ability to predict both early metastasis within three years and a quicker time to definitive treatment for patients above the active surveillance threshold. Another study demonstrated that Prolaris can accurately predict the benefit of adding androgen deprivation therapy (ADT) to radiation therapy (RT) in men with localized prostate cancer.

About the Prolaris Prostate Cancer Prognostic Test
Prolaris is a molecular diagnostic test that provides personalized information about the aggressiveness of a patient's prostate cancer, helping to identify whether it is safe to forgo treatment, whether to pursue treatment, and how much treatment is needed for the best possible outcome. Prolaris is the only biomarker test to quantify the benefits of adding androgen ADT to RT.

About Myriad Genetics
Myriad Genetics is a leading genetic testing and precision medicine company dedicated to advancing health and well-being for all. Myriad develops and offers genetic tests that help assess the risk of developing disease or disease progression and guide treatment decisions across medical specialties where genetic insights can significantly improve patient care and lower healthcare costs. For more information, visit .

Safe Harbor Statement
This press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, including statements relating to the company's Prolaris test and how with its active surveillance threshold, Prolaris identifies the most appropriate patients for active surveillance across all biomarkers, and that clinicians will continue to see the guidelines as an additional reason to incorporate Prolaris in treatment decisions. These "forward-looking statements" are management's expectations of future events as of the date hereof and are subject to known and unknown risks and uncertainties that could cause actual results, conditions, and events to differ materially and adversely from those anticipated. Such factors include those risks described in the company's filings with the U.S. Securities and Exchange Commission, including the company's Annual Report on Form 10-K filed on February 28, 2024, as well as any updates to those risk factors filed from time to time in the company's Quarterly Reports on Form 10-Q or Current Reports on Form 8-K. Myriad is not under any obligation, and it expressly disclaims any obligation, to update or alter any forward-looking statements, whether as a result of new information, future events or otherwise except as required by law.

1 "Advanced tools that have demonstrated superior prognostic performance beyond standard tools and/or serve as a predictive biomarker that identifies patients who will differentially benefit from a specific treatment." Version 1.2025, 12/04/24 2024 National Comprehensive Cancer Network (NCCN)
2
3 Tward JD, et al. Personalizing localized prostate cancer: Validation of a combined clinical cell-cycle risk (CCR) score threshold for prognosticating benefit from multimodality therapy. Clinical Genitourinary Cancer. 2021. Doi:10.1016/j.clgc.2021.01.003

National Comprehensive Cancer Network. NCCN makes no warranties of any kind whatsoever regarding their content, use or application and disclaims any responsibility for their application or use in any way.

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