Forty-five children with advanced Hodgkin's disease (stages III and IV) received combination chemotherapy in three schedules: MOPP (mustargen, Oncovin, procarbazine, prednisolone); COPP (cyclophosphamide was substituted for mustargen); and CVPP (cyclophosphamide, vinblastine, procarbazine, prednisone). The results showed the efficacy of all drug combinations (93% complete and partial remissions). However, the superiority of the MOPP program in prolonging the duration of the complete remission rate was demonstrated. Of 29 patients who showed complete response, 24 continued in complete remission from 8 to 53 months (median duration, 21 months). The other five patients relapsed within 2 to 6 months. Thirty-six of the 45 treated patients are still alive after an average period of follow-up of 19 months. The nine patients who died were followed for an average of seven months. The histologic type, prior chemotherapy, and the age of the patients influenced the results of treatment. The role of maintenance therapy is not discussed in this series