Nov 26, 2002 - 12:45 pm
If these tumor markers are going to be validated, then there should be more data collection. I'm worried about changing meds that might be working just because of tumor markers, unless they are truly valid markers of tumor growth. We need careful collection of data. For example, does anyone stay on Tamoxifen for five years and remain cancer free in spite of rising tumor markers? Or is this just never done? WHERE'S THE DATA?