PASCUAL (Prostate Assay Specific Clinical Utility at Launch) Study

The results of the study will reveal the clinical utility of this test by analyzing the
physicians' use of negative or positive assays compared to patients managed using SOC methods
without assay findings. The repeat biopsy rate at 12 months from study entry will be used for
the primary endpoint analysis. All patients will be followed for 24 months from the date of
the previous negative biopsy to evaluate an extended period of observation to track repeat
biopsies and cancer detection.

The primary objective of this study is to demonstrate a lower repeat biopsy rate by using the
negative results of ConfirmMDx for Prostate Cancer in practice rather than current SOC. All
patients will have the tissue from their previous negative biopsy tested with the assay. Only
data from Cases (informed of ConfirmMDx assay results) and Controls (blinded of the
ConfirmMDx assay result) patients with negative test results will be used for the primary
objective.

Inclusion Criteria:

- Males aged 40 to 75 years old* that underwent a previous cancer-negative prostate
biopsy within 15 months and being considered for a repeat biopsy due to persistent or
elevated cancer-risk factors

- The previous negative prostate biopsy must have collected a minimum of 8 tissue cores
and remaining FFPE tissue from all cores should be available for testing

- Minimum tissue volume criteria of 20 microns of prostate biopsy core tissue should be
available (40 microns preferable)

- The presence of HGPIN (high-grade prostatic intraepithelial neoplasia), PIA
(proliferative inflammatory atrophy), or glandular inflammation reported in the first
biopsy histopathology report is acceptable for entry.

Exclusion Criteria:

- Prior diagnosis of prostate cancer or cellular atypia suspicious for cancer (ASAP) in
a previous biopsy histology report.

- Patients being managed by Active Surveillance for low stage prostate cancer

- Men greater than 75 years old (generally not considered for repeat biopsy)

- Most recent biopsy was a saturation biopsy (> 24 tissue cores).

- Tissue extracted using transurethral resection of the prostate (TURP) procedures
rather than standard patterned biopsy core extraction.

- Subjects who had been previously tested with ConfirmMDx.