Definitions of response.
| Level of Response . | Definition . |
|---|---|
| *Based on the analysis of at least 20 metaphases. | |
| Complete hematologic response (CHR) | Normal full blood count and white cell differential count, no evidence of extramedullary disease |
| Minimal cytogenetic response | 66%–95% Ph-positive metaphases* |
| Minor cytogenetic response | 36%–65% Ph-positive metaphases* |
| Partial cytogenetic response | 1%–35% Ph-positive metaphases* |
| Complete cytogenetic response (CCR) | 0% Ph-positive metaphases* |
| Major cytogenetic response (MCR) | 0%–35% Ph-positive metaphases* |
| Major molecular response (MMR) | ≥ 3-log reduction of BCR-ABL mRNA |
| Complete molecular response (CMR) | Negativity by RT-PCR |
| Level of Response . | Definition . |
|---|---|
| *Based on the analysis of at least 20 metaphases. | |
| Complete hematologic response (CHR) | Normal full blood count and white cell differential count, no evidence of extramedullary disease |
| Minimal cytogenetic response | 66%–95% Ph-positive metaphases* |
| Minor cytogenetic response | 36%–65% Ph-positive metaphases* |
| Partial cytogenetic response | 1%–35% Ph-positive metaphases* |
| Complete cytogenetic response (CCR) | 0% Ph-positive metaphases* |
| Major cytogenetic response (MCR) | 0%–35% Ph-positive metaphases* |
| Major molecular response (MMR) | ≥ 3-log reduction of BCR-ABL mRNA |
| Complete molecular response (CMR) | Negativity by RT-PCR |