Combined modality in Hodgkin's disease: Comparison of six versus three courses of MOPP with clinical and surgical restaging

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Abstract
Between 1972 and 1979, 121 patients with Hodgkin's disease (clinical Stages IInA, IB, IIB, and III) were treated by two different, successive, therapeutic protocols. The first group received six MOPP (mechlorethamine, vincristine, procarbazine, prednisone) cycles before radiotherapy, whereas the second group received only three MOPP cycles before irradiation. A total of 118 patients underwent surgical restaging with splenectomy before irradiation. Clinical criteria used in defining complete remission were verified by surgical restaging. Three MOPPs were just as effective as six MOPPs when combined with radiotherapy in achieving complete remission and in treating occult splenic disesae. Following extended‐field irradiation, complete remission rates were 96% for three MOPPs versus 94% for six MOPPs. The actuarial survival rates, 4 years after therapy completion, were 89% for three MOPPs and 94% for six MOPPs, with a relapse‐free survival rate of 88% and 96.6%, respectively.