Skip to main content
OpenTrials
Active, Not Recruiting

NCT Number: NCT03957252

Validation of ClarityDX Prostate as a Reflex Test to Refine the Prediction of Clinically-significant Prostate Cancer

This ambispective observational cohort study will evaluate the clinical performance of the ClarityDX Prostate blood test in men with a prostate-specific antigen (PSA) level of 3 ng/mL or higher who are undergoing prostate biopsy due to suspicion of prostate cancer. The study will compare ClarityDX Prostate test results with biopsy outcomes to determine the test's ability to identify the presence of clinically significant prostate cancer.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Notify Me

Key information

Age range

40 year–75 year

Sex eligibility

Male

Study type

Observational

Primary location

Prostate Cancer Centre, Calgary, Alberta, Canada

Loading trial locations.

About this study

The main objective of this study is to validate ClarityDX Prostate as a reflex test to PSA to refine the prediction of clinically-significant prostate cancer in a prospective cohort of men to be recruited in North America when they are scheduled for a biopsy as a result of on an elevated PSA or other suspicion of prostate cancer and in retrospective databases from selected sites in the United States of America and the world.

The training and validation analysis sets will consist of up to 2,800 consenting men from Alberta in addition to up to 5,000 men from external institutions, between ages 40-75 (inclusive) years old, without prior diagnosis of prostate cancer, who have been selected to undergo a prostate biopsy to rule out prostate cancer.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Males between 40-75 (inclusive) years of age;
  • With and without family history of prostate cancer;
  • No prior prostate cancer diagnosis and who are referred to have a prostate biopsy;
  • Total PSA results >/= 3ng/mL collected within 6m of enrollment;
  • Willing to permit provincial agencies (e.g. Alberta Health Services, Alberta Health, Netcare, Service Alberta or other based on recruitment jurisdiction) to disclose health-related information to study;
  • Undergoing a diagnostic prostate biopsy; and
  • Provided informed consent to participate in the study.

Exclusion criteria

  • Unwilling to participate in the study;
  • Unavailable for biopsy procedure in recruitment areas;
  • Not undergoing a prostate biopsy;
  • Prior diagnosis of cancer excluding non-melanoma skin cancer; and/or
  • Under the age of 40 years of age or over the age of 75 years of age.

Treatment and study plan

Primary outcomes

  1. Diagnostic Clinical Performance: prediction of clinically significant prostate cancer at biopsy

    Time frame: 3 years

    Training Phase: Processed clinical features of each patient will be analyzed using machine learning to predict clinically significant prostate cancer, with the output being the ClarityDX Prostate Risk Score.

    Validation Phase: The models created during the Training Phase will be locked down and then used to determine the probability of approximately 1,400 patients in the investigational Validation Phase having clinically significant prostate cancer.

  2. Active Surveillance: prediction of Gleason Grade Group on confirmatory/follow-up biopsies for participants on Active Surveillance

    Time frame: 4 years

  3. MRI: prediction of PI-RADS pre-diagnostic biopsy

    Time frame: 4 years

Secondary outcomes

  1. Health economics

    Time frame: 3 years

    Perform health economics and cost-benefit analyss of the test

  2. Medication and co-morbidities

    Time frame: Baseline

    Effect of selected medications and co-morbidities on the predictive value of the test

  3. Analytical validity of the ClarityDX Prostate test

    Time frame: 1 year post enrollment

    Method assessment and analytical validity of the ClarityDX Prostate test.

Sponsors and collaborators

Lead sponsor

Nanostics

Industry

Collaborators

  • Alberta Cancer Foundation
  • Alberta Innovates Health Solutions
  • Alberta Precision Laboratories
  • Alberta Prostate Cancer Research Initiative, APCaRI
  • Kipnes Urology Centre
  • Motorcycle Ride for Dad
  • Prostate Cencer Centre, Calgary
  • University Hospital Foundation - The Kaye Fund Competition

Registry information

Official study title

Clinical Validation of ClarityDX Prostate as a Reflex Test to Prostate Specific Antigen (PSA) to Refine the Prediction of Clinically-significant Prostate Cancer

Acronym: APCaRI-05

Important dates

Study start
2019
Primary completion
2027
Study completion
2027
First posted
May 21, 2019
Registry last updated
Jul 24, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.