Appeal type: Medical necessity
Decision: Upheld

Diagnosis: Cancer. 
Treatment: Cancer Screening. 
The insurer denied Oncotype Dx genetic testing. 
The denial is upheld in whole.

The patient is a male who underwent a prostate biopsy for an elevated prostate-specific antigen (PSA). The biopsy showed Gleason 7 adenocarcinoma in 1 out of 12 cores. The clinical stage was T1c. An Oncotype Dx test was ordered on the biopsy specimens. The subject under review is the medical necessity for the testing.

The health plan's determination is upheld in whole.

The Oncotype Dx Prostate Cancer Assay is a real time polymerase chain reaction (RT-PCR) assay designed for analysis of prostate core needle biopsies. The assay measures the expression of 17 genes to calculate a Genomic Prostate Score (GPS). A lower GPS score indicates a more favorable biology and less aggressive disease. This test may be utilized to counsel men regarding the best course of therapy (active surveillance vs. treatment) in newly diagnosed low or low-intermediate prostate cancer.

Recent studies have suggested that Oncotype Dx can predict adverse pathology and unfavorable outcomes after radical prostatectomy. 

National Comprehensive Cancer Network (NCCN) guidelines for prostate cancer 2020 state, "Several tissue-based molecular assays have been developed in an effort to improve decision-making in newly diagnosed men considering active surveillance and in treated men considering adjuvant therapy or treatment for recurrence. No randomized controlled trials have studied the utility of these tests. These molecular biomarker tests have been developed with extensive industry support, guidance, and involvement, and have been marketed under the less rigorous Food and Drug Administration (FDA) regulatory pathway for biomarkers. Although full assessment of their clinical utility requires prospective randomized clinical trials, which are unlikely to be done, the panel believes that men with low or favorable intermediate disease may consider the use of Decipher, Oncotype Dx Prostate, Prolaris, or ProMark during initial risk stratification."
European Association of Urology (EAU) Guidelines on Prostate cancer, 2019 state the following about Prolaris and Oncotype Dx test, "The results of prospective multicentre studies are awaited before a recommendation can be made regarding their routine application."
American Urological Association (AUA) Guidelines on Clinically Localized Prostate Cancer, 2017 state, "Among most low-risk localized prostate cancer patients, tissue based genomic biomarkers have not shown a clear role in the selection of candidates for active surveillance. Tissue based genomic biomarkers have not shown a clear role in active surveillance for localized prostate cancer and are not necessary for follow up."
American Society for Clinical Oncology Guideline on Molecular Biomarkers in Localized Prostate Cancer, 2019 states "Tissue-based molecular biomarkers (evaluating the sample with the highest volume of the highest Gleason pattern) may improve risk stratification when added to standard clinical parameters, but the expert panel endorses their use only in situations in which the assay results, when considered as a whole with routine clinical factors, are likely to affect a clinical decision."
While Oncotype Dx may eventually have a role in making treatment decision about patients with prostate cancer, there is limited data on clinical outcomes to currently support routine use. Hence, it is not considered a generally acceptable standard of care for management of patients with a diagnosis of prostate cancer.