Abstract
Summary: Using LYmphoma Study Association clinical trials combining 438 first‐line large B‐cell lymphomas (LBCL) patients >80 years old, we defined SENIOR‐IPI, an easily applicable prognostic index for this elderly population treated with an anti‐CD20‐miniCHOP (cyclophosphamide, doxorubicin, vincristine and prednisone)‐based regimen. SENIOR‐International Prognostic Index (SENIOR‐IPI) takes into account accessible variables (number of aaIPI predictors, lactate dehydrogenase > 3x Upper Limit of Normal (LDH >3× ULN), albumin 80 years old fit for age‐adapted immunochemotherapy than IPI, aaIPI and NCCN‐IPI.

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