Chemoradiotherapy With Targeted Immunotherapy in Pediatric Lymphoma

Inclusion Criteria:

* Newly diagnosed patients with histologically or cytologically proven newly diagnosed MB-NHL or cHL according to WHO Classification who meet the following criteria are eligible:

COHORT I:

Burkitt lymphoma (ICD-O 9687/3) Burkitt-like lymphoma with 11q aberration (ICD-O 9687/3) Diffuse large B-cell lymphoma, NOS (ICD-O 9680/3) High grade B-cell lymphoma (ICD-O 9680/3)

COHORT Ia: stage III with LDH ≥ 2 ULN OR stage IV (5-24% bone marrow lymphoma infiltration) (GROUP B)61

COHORT Ib: any CNS involvement and/or BM involvement (≥ 25% lymphoma cells) (GROUP C)61 OR patients with less than 20% tumor size reduction post chemotherapy with cyclophosphamide, dexamethasone, vincristine (DOC Reduction for Cohort Ia).

COHORT II Classical Hodgkin lymphoma (ICD-O 9650/3, 9663/3, 9651/3, 9652/3, 9653/3)

COHORT IIa: stage I-IIA with bulky ± E, I-IIB no bulky ± E, IIIA ± E (INTERMEDIATE RISK)

COHORT IIb: stage IIB with bulky ± E, IIIA with bulky ± E, IIIB, IV (HIGH RISK)

* Adequate organ function

Exclusion Criteria:

* Primary mediastinal B-cell lymphoma (PMBL)
* T-cell/histiocyte-rich large B-cell lymphoma
* Gray zone lymphoma
* Follicular lymphoma
* Nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL)
* Posttransplant lymphoproliferative lymphoma (PTLD)