Calculation Tools

For the purposes of the STAMPEDE trial, a unique threshold PSA value for biochemical failure is calculated for each patient, referred to as the PSA progression value. In the past, research staff have received Progression Letters or contacted the STAMPEDE trial team to obtain this value. However the PSA progression calculator allows research staff to determine the Progression Value themselves, by entering the patient’s PSA results from randomisation to week 24, and printing a copy of the calculation for the patient’s records.

We hope with the launch of this calculator it will be easier for you to track a patient’s PSA record and progression status. Additionally we welcome any feedback or suggestions for improvement!

PSA Progression Value Calculator

PSA Doubling Time Calculator

PSA velocity can be calculated as change from the first PSA reading, standardized as PSA change per month. To assist research staff in calculations of this velocity or doubling time, please take advantage of this online PSA doubling time calculator.