FIGURE 1.
Probability of progression-free survival in the International Randomized Study of Interferon (IFN) and STI571 (IRIS) trial among imatinib-treated patients without a complete cytogenetic response (CCyR) at 12 months or patients who achieved a CCyR with or without a concurrent major molecular response (MMR) (BCR-ABL reduction of at least 3 log). P was <.001 for the overall comparison, .013 for the comparison of patients without a CCyR with those with a CCyR plus MMR, and .007 for the comparison of patients with a CCyR with or without a MMR.29