CCCG-ALL2025 LR-B-ALL plan is designed based on the CCCG-ALL2020 plan. This is a clinical trial using 14 days of blinatumomab (Blina-14) as early intensification after induction therapy and 2nd Blina-14 in consolidation therapy in all newly diagnosed provisional low-risk (LR) pediatric acute lymphoblastic leukemia (ALL) patients, regardless of measurable residual diseases (MRD) status. We will compare the efficacy of chemotherapy combined with Blina-14, comparing to CAT+ intensification or historical regimens. Patients with early remission in depth will receive chemo-light late intensification and maintenance therapy afterwards. Early complete remission in depth and maintenance reduction will be determined by next-generation sequencing (Ig-NGS MRD).
Age older than 1 year and younger than 18 years.
Diagnosis of acute lymphoblastic leukemia by bone marrow morphology.
Diagnosis of B-ALL by immunophenotyping.
Low risk group
T-ALL
I/HR B-ALL group
sIgM+
Acute leukemias of ambiguous lineage diagnosed according to WHO or EGIL criteria.