[Treatment of aggressive lymphomas].

The age-adjusted International Prognostic Index (IPI) allows the definition of clinically relevant subgroups in younger patients (< or = 60 years) with aggressive lymphomas. Six cycles of cyclophosphamide, doxorubicin, vincristine, and prednisone-21 (CHOP-21) with rituximab (R-CHOP-21) achieved an event free survival after 3 years of > 90% in patients with a very good prognosis (IPI 0, without bulk). In contrast, in patients from the less favourable groups (all IPI 1, IPI 0 with bulk only), the same therapy resulted in an event-free survival at 3 years of less than 80%. This requires improvement. Young patients with a worse risk profile have a survival probability of 60% after 5 years. Dose dense therapeutic regimens and autologous stem cell transplantation are being applied to this patient group in clinical trials. For patients > 60 years, the advantage of combined immunochemotherapy has been clearly documented. For patients > 60 years from all IPI groups, the best results have so far been achieved with six courses of R-CHOP-14 followed by two additional applications of rituximab.