Twenty patients with relapsed Hodgkin's disease have been treated with a weekly regimen of chemotherapy (VAPEC-B) comprising Adriamycin 35 mg/m2 i.v. weeks 1, 3, 5, 7, 9, 11; cyclophosphamide 350 mg/m2 i.v. weeks 1, 5, 9; etoposide 100 mg/m2 p.o. daily for 5 days, weeks 3, 7, 11; vincristine 1.4 mg/m2 i.v. weeks 2, 4, 6, 8, 10; bleomycin 10 mg/m2 i.v. weeks 2, 6, 10 and prednisolone 50 mg p.o. daily weeks 1-5, 25 mg p.o. daily weeks 6-11. All had previously received an Adriamycin containing combination and in nine cases this was for relapse following MVPP. In all but one case relapse occurred less than one year after the completion of previous treatment and in 14 cases, disease recurred within 24 weeks. Thirteen patients had extra-nodal involvement. Following six weeks of treatment 14 patients had responded (6 CR; 4 CR, uncertain; 4 PR), four had stable disease, one had progressed and one had died of sepsis. Fourteen patients proceeded to high dose cyclophosphamide and BCNU with autologous bone marrow rescue and seven of these are progression free between 4 and 156 weeks later. High dose therapy was not possible in five patients, three of whom achieved CR. Of these, two (one with bulky nodal disease and skin infiltration; one with extensive bone marrow involvement) are alive and relapse free without further treatment at 95 and 114 weeks. Overall, the regimen was well tolerated but haematological toxicity was moderate or severe in ten patients and four were admitted to hospital for treatment of suspected or confirmed septicaemia.(ABSTRACT TRUNCATED AT 250 WORDS)