CCCG-HD-2018 for Children and Adolescents With Newly Diagnosed Hodgkin Lymphoma

In this study, enrolled patients from age 1 through 18 years with newly diagnosed and biopsy-proven HL are stratified into 3 risk groups according to 3 COG published trials: AHOD0831 (high risk-all Ann Arbor stages III and IV with B symptoms), AHOD0031 (intermediate risk-Ann Arbor stages IB, IAE, IIB, IIAE, IIIA, IVA with or without bulk disease, and IA or IIA with bulk disease) and AHOD0431 (low risk-Ann Arbor stage IA or IIA without bulky disease). Staging was determined with contrast-enhanced CT scanning or MRI, bilateral bone marrow biopsies and FDG-PET. B symptoms included weight loss \> 10%, unexplained recurrent fever \> 38°, or drenching night sweats. Bulk disease included a mediastinal mass with diameter greater than one third of the thoracic diameter on an upright anterior-posterior (AP) chest radiograph or extramediastinal nodal aggregate \> 6 cm in the longest transverse diameter on axial CT. Low risk group: Patients receive 2 cycles of doxorubicin,vincristine, etoposide, cyclophosphamide, and prednisone (AVE-PC) followed by early response (ER) evaluation. Rapid early responders (RERs) receive 2 additional AVE-PC cycles. Slow early responders (SERs) receive 2 additional ABVE-PC cycles followed by involved-field radiotherapy (IFRT). IFRT consists of 21 Gy in 14 fractions of 1.5 Gy per day and is scheduled within 4 weeks after chemotherapy. Intermediate risk group: Patients receive 2 cycles of doxorubicin, bleomycin, vincristine, etoposide, cyclophosphamide, and prednisone (ABVE-PC) followed by ER evaluation. RERs receive 2 additional ABVE-PC cycles. SERs receive 2 additional ABVE-PC cycles followed by IFRT. IFRT consists of 21 Gy in 14 fractions of 1.5 Gy per day and is scheduled within 4 weeks after chemotherapy. High risk group: Patients receive 2 cycles of ABVE-PC followed by ER evaluation. RERs receive 2 additional ABVE-PC cycles followed by IFRT. SERs receive 2 cycles of IFOS/VINO and 2 cycles of ABVE-PC followed by IFRT. IFRT consists of 21 Gy in 14 fractions of 1.5 Gy per day and is scheduled within 4 weeks after chemotherapy. Patients who have disease progression at any time will be removed from this protocol.