RecruitingClinical trialA Study of Brentuximab Vedotin in Adults With Hodgkin's LymphomaThe main aim is to check how effective BV is for treating adults with HL. Study medication will be prescribed according to the clinic's standard practice. Participants will visit the study clinic 5 times, once every 12 weeks. When study treatment has completed, a follow-up visit will be scheduled every 3 months during the first year and every 4-6 months during the next year.