After prostate cancer comes back, how high the PSA is when you start radiation therapy matters more for your survival than how aggressive the cancer looked when it was first diagnosed.

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Evidence from Studies

Supporting (1)

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Community contributions welcome

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Prostate-Specific Antigen as an Ultrasensitive Biomarker for Patients with Early Recurrent Prostate Cancer: How Low Shall We Go? A Systematic Review

Systematic Review

Human

2024 Apr 8

When prostate cancer comes back after surgery, doctors use a very sensitive blood test to check PSA levels before giving radiation. This study found that the lower the PSA level is at that point, the better the chance the patient will live longer — more than what the original cancer’s features (like PSA before surgery or how aggressive it looked under a microscope) could predict.

Contradicting (0)

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No contradicting evidence found

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Source Study

Prostate-Specific Antigen as an Ultrasensitive Biomarker for Patients with Early Recurrent Prostate Cancer: How Low Shall We Go? A Systematic Review

Score: 40

DOI: 10.3390/biomedicines12040822

Similar Assertions

If radiation therapy brings the PSA level back to undetectable after cancer comes back, the patient is much more likely to live longer—even if the PSA was already high when treatment started.

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Men whose prostate cancer comes back after surgery and get radiation therapy when their PSA is still very low (under 50 ng/L) live longer and are less likely to get cancer spread than those who wait until their PSA is much higher.

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