The use of high-dose cyclophosphamide, carmustine, and etoposide (CBV) with autologous bone marrow transplantation (ABMT) results in long-term disease-free survival of about 30% in patients with relapsed Hodgkin's disease. Laboratory and clinical data show that cisplatin is synergistic with etoposide and carmustine, with non-overlapping extramedullary toxicity. Twenty-one patients with relapsed Hodgkin's disease that had progressed after both MOPP-like and ABVD-like regimens were treated with CBV plus cisplatin (90 mg/m2) and ABMT. The CR rate was 55%; the three-year disease-free and overall survival were 29% and 38% respectively; these results are comparable to prior experience with CBV. Performance status was strongly correlated with achievement of CR, survival, and time to treatment failure. Nephrotoxicity was seen in 3 patients, and ototoxicity in 1 patient. Although cisplatin could be added to CBV with minimal additional toxicity, the results obtained in this small patient population were not better than those of the earlier regimen. A larger trial in patients not previously exposed to cisplatin may better define the role of its addition to CBV.