Change in BCR-ABL1 value from the individual patient baseline value according to the halving time at 3 months for patients with >10% BCR-ABL1. (A) Twenty-one patients had a halving time >76 days and (B) 74 patients had a halving time ≤76 days. The lines represent the change in BCR-ABL1 value from baseline to the day of collection of the 3-month sample. The box plots represent the median and interquartile range of the baseline and 3-month measurements. The response outcome probabilities were inferior for patients with little or no change.