[Treatment strategy for newly diagnosed Hodgkin lymphoma: current evidence].

Interim positron emission tomography (PET) -guided therapy and brentuximab vedotin (BV) combined systemic chemotherapy have been developed for newly diagnosed classical Hodgkin's lymphoma (cHL). A majority of recent trials using interim PET response-adapted approaches have assessed the treatment strategies for cHL and reported that the initial treatment could be suitably altered to intensive treatment in an early phase, thereby enhancing the efficacy in interim PET-positive patients, whereas the simplified treatment regimen, such as omitting drugs or radiation, could minimize the risk of toxicity in interim PET-negative patients. This review includes the current evidence primarily focusing on randomized clinical trials including patients with newly diagnosed cHL to investigate the efficacy and safety of interim PET-guided therapy or BV combined regimen and also mentions that issues.