Prostate Cancer Tool
PSA Kinetics Tracker
Plot PSA readings after radiotherapy against a halving schedule set by the pre-treatment PSA.
PSA over time
Expected schedule
Readings against expected
The expected PSA halves at months 3, 9, 15 and 21, then stays flat. The line is straight between those points. With ADT, the expected PSA is 0 until ADT stops, then rises in a straight line to rejoin that curve 6 months later. Nothing you enter is saved or sent anywhere. This chart is a tracking aid and does not replace your care team’s review.
How does the PSA tracker work?
Enter your pre-treatment PSA, the date of radiotherapy, and your post-treatment PSA results. The tracker plots each reading by months since radiotherapy, next to an expected curve built from your pre-treatment PSA. You can enter results below the lab’s limit of detection as a value such as <0.1.
What is the expected curve?
The expected PSA halves at months 3, 9, 15, and 21, then stays flat, with a straight line between those points. The tracker shows the schedule in a table and lists how far each of your readings is above or below it.
How does ADT change the expected curve?
If you enter months of androgen deprivation therapy (ADT), the expected PSA is 0 until ADT stops. It then rises in a straight line to rejoin the curve 6 months later.
Is my information saved?
No. The tracker runs in your browser, and nothing you enter is saved or sent anywhere.
Related resources
PSA Doubling Time Calculator
Enter dated PSA results to estimate how quickly PSA is doubling or halving, with a chart of your results.
More… TreatmentThe Radiation Therapy Process
We've decided to pursue radiation therapy. What are the next steps? When do I come back?
More… First VisitQuestions to Ask Your Care Team
A starter list of questions worth bringing to your consultation and follow-up visits.
More…Questions about your PSA?
Bring your results to your next visit, or contact our office.