- Regimen A: Patients receive mechlorethamine IV on weeks 1, 5, and 9; doxorubicin and vinblastine IV on weeks 1, 3, 5, 7, 9, and 11; vincristine and bleomycin IV on weeks 2, 4, 6, 8, 10, and 12; etoposide IV over 30-45 minutes for 2 consecutive days on weeks 3, 7, and 11; and prednisone orally every other day on days 1-84. Treatment continues for 8-12 weeks, depending on response, in the absence of disease progression or unacceptable toxicity.