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Abstract
ABVD (doxorubicin, bleomycin, vinblastine, dacarbazine) is standard upfront chemotherapy for adults diagnosed with Hodgkin lymphoma (HL), but positron emission tomography (PET)-based response data following ABVD is lacking for pediatrics. Among children who received ABVD for HL, we document interim and end of therapy PET-computed tomography (CT) response by Deauville criteria, and survival outcomes following a response-based reduction in involved field radiotherapy (IFRT). Children 18 years of age or below with HL treated with ABVD between 2006 and 2015 who had interim PET/CT scans after 2 cycles of chemotherapy were included. Interim and end of therapy PET/CT scans were retrospectively re-evaluated using Deauville criteria by 3 radiologists. Among 45 children, 32 (71%) met criteria for intermediate risk, 86% achieved rapid early response (RER) and only 4 (9%) received upfront IFRT. Patients achieving RER had superior 5-year event-free survival (EFS) 95%±4% versus 50%±18% (P=0.001) and overall survival (OS) 100% versus 83%±15% (P=0.025). Patients with bulk who achieved RER and received no IFRT achieved 5-year EFS of 92%±6% and OS 100%. Low, intermediate, and high risk patients had 5-year EFS of 100%, 94%±4%, and 50%±18% (P=0.002) and 5-year OS of 100%, 100%, and 75%±15% (P=0.03). RER following 2 cycles of ABVD is predictive of survival outcomes in children and adolescents with HL and may identify a group who may omit IFRT.
View details for DOI 10.1097/MPH.0000000000001534
View details for Web of Science ID 000517240500004
View details for PubMedID 31259825