A targeted therapy for children with high-risk Hodgkin lymphoma (HL) was shown to significantly reduce relapse rates when tested in a large multicenter clinical trial conducted by the Children's Oncology Group (COG) and led by pediatric oncologists at Roswell Park Comprehensive Cancer Center, Children's Healthcare of Atlanta and Winship Cancer Institute of Emory University. By combining the targeted antibody-drug conjugate (ADC) brentuximab vedotin (BV) with the standard chemotherapy regimen, children were 10% less likely to relapse.