Safety, Efficacy, & Pharmacokinetic Study of Tamibarotene to Treat Patients With Relapsed or Refractory APL

For induction therapy, tamibarotene will be self-administered via tablets on an outpatient basis at a dose of 6 mg/m2 per day, taken orally, in two divided doses approximately one hour after breakfast and dinner. Induction therapy will continue for a maximum of 56 days until either a morphologic leukemia-free state or complete response (CR) has been achieved. For patients who achieve a CR with induction therapy, consolidation therapy will commence 4 to 8 weeks after the end of induction therapy. For patients who have a morphologic leukemia-free state after induction therapy but who fail to achieve a CR, consolidation therapy will commence 8 weeks after the end of induction therapy.