The Decipher Prostate RP, a radical prostatectomy postsurgery test from San Diego-based Decipher Biosciences, has been clinically validated to predict overall survival and is believed to be the first known genomic test in localized prostate cancer to accomplish this milestone. The study, an analysis of the NRG Oncology Phase 3 randomized controlled trial RTOG 96-01 that followed patients for a median of 12 years, validated the Decipher RP test as an independent predictor of distant metastases, prostate cancer-specific mortality, and overall survival. 1
“This is very exciting, as the study validates Decipher Prostate as the first independent predictor of overall survival and shows how predicting metastatic risk with the Decipher test can be utilized to better guide treatment decisions in men with a prostate specific antigen (PSA) recurrence,” says Tina S. Nova, PhD, president and chief executive officer of Decipher Biosciences. “We consider this a significant milestone in the development of evidence for Decipher Prostate.”
Additionally, this study demonstrated that Decipher risk results were associated with hormone therapy benefit, with Decipher high-risk men having received greater absolute benefit from hormone therapy than Decipher low-risk men. In the subset of patients who received hormone therapy in addition to early salvage radiotherapy, Decipher high-risk men experienced improvements in distant metastasis, prostate cancer-specific mortality, and overall survival, while Decipher low-risk men had good oncologic outcomes without hormone therapy.
“Identifying which patients with recurrent disease are most likely to benefit from hormonal therapy will improve our ability to extend patient survival, while minimizing unnecessary toxicity for a large group of men with prostate cancer,” says Felix Feng, MD, vice chair of radiation oncology at University of California, San Francisco. “Decipher Prostate RP improves upon clinical and pathological risk stratification methods and informs the use of hormonal therapy, making it a reasonable and recommended component of the prostate cancer standard of care.”
For more information, visit Decipher Biosciences.
Featured image: Prostate cancer of a human, highly detailed segment of panorama. Photomicrograph as seen under the microscope, 10x zoom. (ID 66313345 © Viachaslau Bondarau | Dreamstime.com)
- Feng FY, Huang HC, Spratt DE, et al. Validation of a 22-Gene Genomic Classifier in Patients With Recurrent Prostate Cancer: An Ancillary Study of the NRG/RTOG 9601 Randomized Clinical Trial [published online ahead of print, 2021 Feb 11]. JAMA Oncol. 2021;10.1001/jamaoncol.2020.7671. doi:10.1001/jamaoncol.2020.7671