Cord Blood Transplantation in Children and Young Adults With Blood Cancer

Inclusion criteria

• ✓. Patients in CR (bone marrow blasts \<5% by morphology) who had prior allogeneic transplant and disease recurrence. The second transplant will take place at least 4 months after the first.
• ✓. Patients with relapsed/refractory disease at either first or second allogeneic transplant, with up to 30% bone marrow blasts by multiparameter flow cytometry or morphology. ° Relapse after previous transplant with \< 30% blasts by bone marrow morphology, or with cytogenetic, flow cytometric, or molecular abnormalities in \< 30% of bone marrow cells, after induction therapy.