from the paper,
We confirm that Imatinib can be safely and prospectively discontinued in pts with DMR of at least 2 years duration in patients only treated with imatinib. To stop treatment it may not require the complete eradication of residual leukemic stem cells since positive fluctuation PCR results do not lead to CML relapse or progression. These intriguing results, even for imatinib treated patients since disease onset (already observed after IFN therapy), are comparable to those reported with the more sensitive PCR on DNA in the TWISTER study and are under investigations in our laboratory. "
Something to think about - eh?
You're both cured and I envy both of you (and Chris C too!).