TRACE · Therapy Retention And Cohort Estimator

Input

NBRx (new patients) and TRx, one row per month from launch

Upload CSV or Excel

Paste from Excel, drop a file onto this box, or upload. Oldest month first, starting at launch. At least 6 months; 12 or more is better.

Max lag (months)

Months forward

Future new patients

Max lag is how many months of past cohorts count toward each month's TRx. More in Help.

ActualFittedProjection

Share still on therapy

The Excel file has four sheets: Inputs_Clean, Fit_Params, Retention_S(t) and TRx_Fit_Forecast.