- The LNH 93-5 study compared the ACVBP regimen to the CHOP in patients aged from 61 to 69 years with aggressive lymphoma and at least one adverse prognostic factor according to the International Prognostic Index. Out of 703 patients included in this study, the results have shown the same complete response rate in the two arms, but a significantly better 3-year event free survival and overall survival in the ACVBP arm than in the CHOP arm. However, the benefit seems to be greater in patients <66 years, due to higher toxicity with the ACVBP regimen in elderly patients.