

Management Path (1, 2)
Prostate Cancer
Genetic Test
For Physicians
1
Introduction
Which Men Should Consider Biopsy
When PSA is Moderately-Elevated
or
PSA is Abnormal but No Lesion Detected on MRI (15-20% False Negative)
When integrated with clinical factors - such as age, PSA values, and DRE findings - genetic risk stratification may support decision-making regarding MRI referral and biopsy necessity (1, 2)
For male patients with elevated PSA levels, our genetic test offers screening for rare pathogenic variants associated with increased prostate cancer risk and aggressiveness, and a Polygenic Risk Score (PRS).
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Certain rare germline mutations are associated not only with an increased risk of developing prostate cancer, but also with a predisposition to more aggressive - metastatic prostate cancer (3).
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Polygenic Risk Scores (PRS) for prostate cancer quantify an individual’s genetic risk based on the combined effect of up to a million of common genetic variants.
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Recent large cohort studies have shown that PRS can stratify men by lifetime risk of developing prostate cancer, independent of family history or PSA levels (1, 2).
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Clinically, PRS and monogenic testing, when combined with test results like PSA levels, helps doctors decide which men might need a prostate biopsy sooner by identifying those with higher lifetime genetic risk, while also helping to avoid unnecessary or delay biopsies in men with lower risk (1-6).
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These germline variants are stable over a patient's lifetime and are not influenced by modifiable risk factors such as diet or lifestyle.
2
Clinical Utilities
A positive report for patients with moderately-elevated PSA may inform biopsy necessity or MRI screening versus additional PSA testing:
a. Pathogenic Variant Finding in High-Risk Genes (e.g., BRCA1/2, PALB2) or Genes Associated with Metastatic Cancer (e.g. BRCA2, ATM, and NBN)
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Consider:
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Biopsy necessity or MRI screening
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PRS not required to make decision
b. No Pathogenic Variant, or Only a VUS was Detected
Add Galatea StrataRisk™ PRS
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If result is "HIGH Polygenic Risk"
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Consider:
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Biopsy necessity or MRI screening
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If result is "NOT HIGH Polygenic Risk", no pathogenic variant detected and no suspicious DRE
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Consider:
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Continue PSA surveillance, or shared decision-making based on other clinical risks and family history.
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3
Indications for Genetic Testing
a. Clinical Indications* for testing, with results that may inform biopsy or MRI necessity
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Age<59, PSA>2.5 ng/mL, with or without findings suggestive of malignancy on digital rectal examination (DRE)
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Age 60 and older, PSA>3.5 ng/mL, with or without suspicious DRE
b. Personal or family cancer history**
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Personal history of metastatic prostate cancer
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Personal history of prostate cancer and with at least one first- or second-degree relative with a BRCA-associated cancer (e.g., breast, ovarian, pancreatic, or prostate cancer)
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No personal history of prostate cancer, and with one first- or second-degree relative with a history of metastatic prostate cancer; triple-negative breast cancer; breast cancer diagnosed at age 50 or younger; ovarian cancer or pancreatic cancer
* Clinical Indications alone without a personal or family history are unlikely to be eligible for insurance coverage.
** Personal or family cancer history are likely to be insurance-covered indications for testing.
Contact us for more information on indications that may qualify for insurance coverage
4
Test Description
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Methods
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Multi-Gene Hereditary Cancer Panel
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Whole genome sequencing
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Supplemental Polygenic Risk Score Analysis
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Sample Requirements
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Buccal Swab, Saliva or 3mL whole blood in EDTA tube
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Sampling can be completed at patient's home.
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Laboratory
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Test is performed at Galatea's U.S. CLIA-certified and CAP-accredited clinical laboratory
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5
Clinical Report
a. Pathogenic variants associated with elevated prostate cancer risk
b. Additional findings supported by emerging evidence:
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Pathogenic variants associated with metastatic prostate cancer risk
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Ancestry-adjusted, prostate cancer polygenic risk score specific to Whites, Hispanics, Blacks, Asians and other mix-raced individuals.
c. Friendly and Reassuring
Patients who consent will receive a personalized ancestry report.
6
Physician and Insurance Support
Clinical interpretation of results and clinical reports are provided by Galatea’s certified laboratory.
Physician support is offered in partnership with Nova, which includes:
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Assistance correlating symptoms and family history with variant findings
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Help understanding test results and reports
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Support in communicating findings with families
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Next steps for follow-up or genetic counseling
Genetic Counseling Support is provided by Galatea-affiliated, licensed genetic counselors
Insurance Support is available to assist physicians and families with pre-authorization and billing.

References
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Assessment of a Polygenic Risk Score in Screening for Prostate Cancer. N Engl J Med 2025;392:1406-1417
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"Real-world data indicate that up to 25% of men with no lesion detected on MRI may have clinically significant prostate cancer on biopsy."
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"We identified clinically significant prostate cancer in participants without MRI-detected lesions, which suggests that for those with a polygenic risk score in at least the 90th percentile, prostate biopsy warrants consideration regardless of MRI outcome. "
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A Polygenic Risk Score in Practice. N Engl J Med 2025;392:1444-1446.
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Germline Sequencing Analysis to Inform Clinical Gene Panel Testing for Aggressive Prostate Cancer. JAMA Oncol. 2023 Nov 1;9(11):1514-1524.
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"The findings of this study provide further support for DNA repair and cancer susceptibility genes to better inform disease management in men with PCa and for extending testing to men with nonaggressive disease, as men carrying deleterious alleles in these genes are likely to develop more advanced disease."
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Polygenic Risk Score and Upgrading in Patients With Prostate Cancer Receiving Active Surveillance. JAMA Oncol. 2025;11(2):168-171.
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How Well do Polygenic Risk Scores Identify Men at High Risk for Prostate Cancer? Systematic Review and Meta-Analysis. Clinical Genitourinary Cancer, Vol. 21, No. 2, 316.e1–316.e11 © 2022.
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Prostate cancer risk stratification improvement across multiple ancestries with new polygenic hazard score. Prostate Cancer and Prostatic Diseases (2022) 25:755–761.
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Polygenic risk and rare variant gene clustering enhance cancer risk stratification for breast and prostate cancers. Communications Biology volume 7, Article number: 1289 (2024).
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Predictive value of polygenic risk score for prostate cancer incidence and prognosis in the Han Chinese. Sci Rep 14, 20453 (2024).
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Polygenic Risk Score Modifies Prostate Cancer Risk of Pathogenic Variants in Men of African Ancestry. Cancer Res Commun. 2023 Dec 14;3(12):2544-2550
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Evidence of Novel Susceptibility Variants for Prostate Cancer and a Multiancestry Polygenic Risk Score Associated with Aggressive Disease in Men of African Ancestry. Eur Urol. 2023 Jul;84(1):13-21.


Why the Galatea Test is Different?
Provide genetic risk associated with metastatic prostate cancer
We report pathogenic variant in >11 genes supported by recent studies, that are associated with the following aggressive forms of prostate cancer:
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Category T4, or both T3 and Gleason score ≥ 8 tumors
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Metastatic PCa or PCa death
Polygenic Risk Interpretation Informs Biopsy Necessity
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For patients without a pathogenic rare variant finding, a high polygenic risk score alone may inform biopsy necessity.
What are the key differences between urine-based mRNA biomarker testing (SelectMDx, etc.) and germline polygenic risk score testing
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Both tests inform biopsy necessity when PSA is elevated or borderline, but PRS testing can be performed for individuals with no abnormal PSA levels, especially for men with a family history or early concern.
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mRNA biomarker testing predicts likelihood of high-grade cancer (Gleason ≥7)
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PRS testing stratifies long-term risk: helps guide screening frequency, MRI, biopsy decisions
Ancestry-Adjusted PRS
Applicable to your patient populations
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Our polygenic risk score is calibrated specifically for each ethnic group - including White, Hispanic, Black, Asian, and mixed-race individuals, to provide more accurate risk assessment across diverse populations.
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Our PRS may be more accurate compared to those derived from studies focusing mainly on individuals of European ancestry.
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Friendly and Reassuring
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With consent, the patients get a personalized ancestry report.
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Genome-Wide PRS
More accurate polygenic risk assessment
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Up to a million genetic markers (SNPs) are used in our scoring process for prostate cancer risk.
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Our PRS provides a more accurate and personalized risk estimate than methods that rely only on high-impact SNPs based on a small number of studies.
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Studies have shown that PRS derived from genome wide SNP analysis may be more accurate than those using only a small number of high risk SNPs.

Why is Nova Physician and Patient Support Different?
Physician Burden Reduction
Nova Patient-Friendly Report
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The supplemental report accompanying the prostate cancer genetic test clinical report provides a clear explanation of findings in everyday language, designed to help patients better understand their results and associated risks.
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This patient-facing summary is intended to support effective communication between clinicians and individuals undergoing testing, making the entire process smoother and more supportive.