MACOP-B lymphoma(94,95)
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methotrexate.... 400 mg/sqm IV at weeks 2, 6, and 10: with
100 mg/sqm given IV bolus and with remaining
300 mg/sqm infused over 4 h.
leucovorin...... 15 mg orally every 6 h times 6 started 24 h
after methotrexate bolus.
adriamycin...... 50 mg/sqm IV at weeks 1, 3, 5, 7, 9, and 11.
cytoxan......... 350 mg/sqm IV at weeks 1, 3, 5, 7, 9, and 11.
vincristine..... 1.4 mg/sqm (maximum 2 mg/sqm) IV at weeks: 2,
4, 6, 8, 10, and 12.
prednisone...... 75 mg/day orally, dose tapered over the last 15
days.
bleomycin....... 10 U/sqm IV at weeks: 4, 8, and 12.
FREQUENCY....... Regimen described is a single cycle.
reference...
Klimo P. Connors JM. MACOP-B chemotherapy for the treatment
of diffuse large-cell lymphoma. Annals of Internal Medicine.
102(5):596-602, 1985 May.
abstract...
Between April 1981 and May 1984, 61 patients with advanced
diffuse large-cell lymphoma completed treatment with MACOP-B
(methotrexate with leucovorin rescue, doxorubicin,
cyclophosphamide, vincristine, prednisone, and bleomycin), an
innovative pilot chemotherapy program emphasizing weekly
treatment, antibiotic prophylaxis, daily corticosteroid
treatments, and brief duration (12 weeks). Fifty-one patients
(84%) achieved a complete response and 10 patients (16%) had a
partial response. Over a median follow-up after treatment of
23 months, the actuarial overall survival for the entire group
has been 76%; for complete responders the relapse-free
survival has been 90%. Toxicity was modest with one
treatment-related death and seven episodes of serious
infection. The most frequent toxicity was mucositis. Thus,
MACOP-B is an effective treatment for large-cell lymphoma that
can be delivered in 12 weeks with an acceptable incidence of
toxicity. This regimen can achieve results similar and
possibly superior to those of other presently used regimens of
longer duration.
reference...
Klimo P. Connors JM. Updated clinical experience with
MACOP-B. Seminars in Hematology. 24(2 Suppl 1):26-34, 1987
Apr.
abstract...
This paper summarizes our experience with MACOP-B chemotherapy
(methotrexate, doxorubicin, cyclophosphamide, vincristine,
prednisone, bleomycin) in 125 patients with advanced stage,
diffuse, large cell non-Hodgkin's lymphoma referred to the
Cancer Control Agency of British Columbia between April 1981
and June 1986. Complete response (CR) was achieved in 105
patients (84%), partial response (PR) in 18 patients (14.4%)
and primary treatment failure occurred in two patients (1.6%).
Fifteen of the PRs and both nonresponders succumbed to their
disease. Of the 105 CRs, 23 patients (21%) suffered a relapse;
14 of the relapsers eventually died from their lymphoma, five
are in second CR, three are receiving further therapy, and one
has histologic evidence of asymptomatic, low-grade lymphoma.
Three deaths were unrelated to lymphoma. Overall toxicity was
acceptable, with only six treatment-related deaths (4.8%). The
incidence of nonfatal systemic proven or suspected infections
was 10%. Mucocutaneous side effects remain the most frequent
toxicity of the MACOP-B protocol. More than half of the 125
patients received at least a portion of MACOP-B from community
oncologists. The results of treatment with MACOP-B remain at
least comparable to the best reported in the literature, yet
they have been achieved with less toxicity, over shorter
periods of time, and with diminished socioeconomic impact on
patients. However, improvement on these results is necessary
both in terms of efficacy and toxicity. A new variant of
MACOP-B is now being tested and our preliminary experience has
been encouraging.
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