Fig. 4.
Time to achieve molecular remission in patients who were positive for PML/RARα and had HCR.
Among the patients with HCR treated for residual leukemia and maintenance, 44 patients positive for PML-RARα transcript at baseline had serial follow-up assessments, and 35 of them (79.5%) had become negative for PML-RARα mRNA after As4S4treatment in a median time of 114 days (range, 22-622 days).