What Is MyProstateScore 2.0?

What is MyProstateScore 2.0?

MyProstateScore 2.0 (MPS2) is a urine-based biomarker test developed here at the University of Michigan that helps answer the key question after an elevated PSA: do I actually need a biopsy?

You provide a urine sample — no prostate exam needed, collectible at home — and the test analyzes 18 genes linked to high-grade prostate cancer. The goal is to find the cancers that matter (Grade Group 2 and above) while sparing men with slow-growing disease an unnecessary biopsy. In validation studies, MPS2 cut unnecessary biopsies by up to 41%, versus about 11% for PSA alone.

It improves on the original MyProstateScore test by expanding from 3 markers to 18 genes

When would I use MPS2?

I use MPS2 in the gray zone — PSA is elevated, the exam is normal, and the next step isn't obvious. It helps before a first biopsy, when we want more information first, and before a repeat biopsy, when a prior biopsy was negative but the PSA stays up.

The question is always the same: is aggressive cancer likely, or can we watch? A low score meaningfully lowers the probability — often enough to choose monitoring. A high score pushes toward biopsy.

What do the results mean?

MPS2 gives a probability, not a yes-or-no: the likelihood a biopsy would find high-grade cancer.

A low score means monitoring is usually the right call — it doesn't guarantee no cancer, but it shifts the odds enough to comfortably skip the biopsy and keep watching the PSA. A high score means the risk justifies looking directly.

Instead of "your PSA is up, let's biopsy just in case," we get "your risk is X percent" — and decide together from there.

Where does MPS2 fit in?

Think of it like asking two witnesses about the same event. PSA is the first witness — it saw something, but can't say exactly what. MPS2 is a second witness with a different vantage point, reading the genes instead of the protein. Neither sees the whole picture alone, but when two independent witnesses agree, your suspicion that significant cancer is really there goes up.

From there, the next step is to check directly with a biopsy — or to get even more information with an MRI first.

By Chad Ellimoottil, MD — urologist at Michigan Medicine specializing in prostate cancer detection.

Disclaimer: This information is for general educational purposes only and is not medical advice. Please consult a qualified healthcare professional about any medical condition, diagnosis, or treatment decision.