Major molecular response Minimal or No Molecular response
It indicates nonquantifiable and nondetectable BCR-ABL gene transcript (BCR-ABL/ABL) ≤ 0.10.*
Check every three months
It indicates quantifiable and detectable BCR-ABL gene transcript (BCR-ABL/ABL)> 0.10.*

Check every three months
*BCR-ABL to control gene ratio according to international scale (IS)
Table 1B: Molecular responses criteria in CML patients.