LC50 by MTT as described in Pieters and Kaspers et al1,2. Classification based on LC50-values previously associated with treatment outcome, as described in den Boer et al3.
| Drug | Sensistive | Resistant |
| Prednisolone | ≤ 0.100μg/ml | ≥ 150μg/ml |
| Vincristine | ≤ 0.391μg/ml | ≥ 1.758μg/ml |
| Asparaginase | ≤ 0.033IU/ml | ≥ 0.912IU/ml |
| Daunorubicin | ≤ 0.075μg/ml | ≥ 0.114μg/ml |