The m-BACOD combination chemotherapy regimen in large-cell lymphoma: analysis of the completed trial and comparison with the M-BACOD regimen.
One hundred thirty-four assessable patients with stage II-IV large-cell lymphoma (LCL) were treated with the combination chemotherapy regimen methotrexate with leucovorin, bleomycin, doxorubicin, cyclophosphamide, vincristine, and dexamethasone (m-BACOD) between July 1981 and May 1986. The m-BACOD regimen substituted moderate-dose methotrexate (200 mg/m2 x 2) for the high-dose methotrexate used in the preceding M-BACOD regimen; all other drugs were administered as with m-BACOD. Eighty-two patients (61%) in the completed m-BACOD trial achieved a complete response (CR). With a median follow-up of 3.6 years, 62 patients (76%) continue in CR. Predicted survivals of 1, 3, and 5 years for the entire m-BACOD group are 80%, 63%, and 60%, respectively, with a 5-year disease-free survival (DFS) of 74% for the patients who achieve CR. The results obtained with m-BACOD are comparable with those obtained in the preceding M-BACOD trial, which now has a median follow-up of 8.0 years. The reduction in methotrexate dosage in m-BACOD patients was not associated with an increased incidence of CNS relapse. Long-term follow-up of the 215 M/m-BACOD patients indicates that the regimens are not associated with an increased incidence of secondary malignancy. Prolonged follow-up also indicates that advanced-stage patients have a persistent rate of late relapse of about 7.0% per year for years 2 to 5 of their follow-up and that stage II patients have an approximate 2.1% per year rate of late relapse. Application of the previously described prognostic factor model to the 215 M/m-BACOD patients from the completed trials identifies a high-risk group of patients with a CR rate and predicted 5-year survival (38% and 24%, respectively) that are significantly worse than those of the group as a whole (65% and 57%, respectively).
Shipp
M A
MA
Division of Clinical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115.
Yeap
B Y
BY
Harrington
D P
DP
Klatt
M M
MM
Pinkus
G S
GS
Jochelson
M S
MS
Rosenthal
D S
DS
Skarin
A T
AT
Canellos
G P
GP
D000971:Antineoplastic Combined Chemotherapy Protocols / Q000009:adverse effects / Q000627:therapeutic use*; D001761:Bleomycin / Q000008:administration & dosage / Q000009:adverse effects; D002493:Central Nervous System Diseases / Q000453:epidemiology; D002986:Clinical Trials as Topic; D003520:Cyclophosphamide / Q000008:administration & dosage / Q000009:adverse effects; D003907:Dexamethasone / Q000008:administration & dosage / Q000009:adverse effects; D004305:Dose-Response Relationship, Drug; D004317:Doxorubicin / Q000008:administration & dosage / Q000009:adverse effects; D005500:Follow-Up Studies; D006801:Humans; D002955:Leucovorin / Q000008:administration & dosage / Q000009:adverse effects; D016403:Lymphoma, Large B-Cell, Diffuse / Q000188:drug therapy* / Q000401:mortality; D008228:Lymphoma, Non-Hodgkin / Q000188:drug therapy* / Q000401:mortality; D008727:Methotrexate / Q000008:administration & dosage / Q000009:adverse effects; D009364:Neoplasm Recurrence, Local / Q000453:epidemiology; D011379:Prognosis; D012074:Remission Induction; D016019:Survival Analysis; D013997:Time Factors; D014750:Vincristine / Q000008:administration & dosage / Q000009:adverse effects
D001761:Bleomycin; D014750:Vincristine; D003907:Dexamethasone; D004317:Doxorubicin; D003520:Cyclophosphamide; D002955:Leucovorin; D008727:Methotrexate