Plasma and urine biomarker algorithm versus systematic biopsy for prostate cancer detection in elderly men: a randomised trial with early termination for futility

Authors

DOI:

https://doi.org/10.2340/sju.v61.45464

Keywords:

Prostate cancer, biomarkers, prostate biopsy

Abstract

Objective: This study aimed to compare test sensitivity for detecting aggressive prostate cancer and test specificity (measured by reduction in prostate biopsies) between algorithm-triage and standard systematic biopsy in elderly men with suspected prostate cancer.

Methods: This randomised controlled trial enrolled men ≥ 70 years old suspected of prostate cancer and randomised them 1:1 to algorithm-triage or standard systematic biopsies. The algorithm arm used a 10-gene mRNA panel from urine and plasma samples, integrated with clinical characteristics and PSA measurements to predict prostate cancer with International Society of Urological Pathology grade group ≥ 2. Patient-reported outcomes measures were collected using the Functional Assessment of Cancer Therapy-Prostate (FACT-P) scores or subdomains throughout a 24-month follow-up. ClinicalTrials.gov: NCT04079699.

Results: A total of 202 men were included between October 2019 and September 2021. The study was terminated early due to algorithm underperformance. The algorithm-triage arm detected fewer indolent cancers (7.9% vs. 19%, absolute difference −10.9 percentage points, 95% confidence interval [CI]: −21.0 to −1.0 pp, P = 0.039) but also fewer clinically significant cancers (26% vs. 40%, absolute difference −13.9 percentage points, 95% CI: −27.6 to −0.1 pp, P = 0.051) compared to systematic biopsy. Patient-reported outcomes showed no significant between-group differences in FACT-P scores or subdomains throughout 24-month follow-up (differences 0.1–2.2 points, all P > 0.05), indicating comparable quality of life.

Conclusion: The biomarker-based algorithm-triage reduced biopsy numbers but also detected fewer ­clinically significant prostate cancers. Quality of life was comparable between approaches.

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References

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Published

2026-03-04

How to Cite

Pedersen, T. B., Poulsen, C. A., Lund, M., Albitar, M., Østergaard, L. D., Feddersen, S., … Poulsen, M. H. (2026). Plasma and urine biomarker algorithm versus systematic biopsy for prostate cancer detection in elderly men: a randomised trial with early termination for futility. Scandinavian Journal of Urology, 61(1), 31–37. https://doi.org/10.2340/sju.v61.45464

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