- Second-line treatment group 1: Patients receive ifosfamide IV over 22 hours and etoposide IV over 1-2 hours and oral prednisone three times daily on days 1-5 (IEP). Patients then receive doxorubicin hydrochloride IV over 1-6 hours, bleomycin IV, vinblastine IV, and dacarbazine IV over 15-30 minutes on days 22 and 36 (ABVD). Treatment repeats every 50 days for 2 courses in the absence of disease progression or unacceptable toxicity.