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M-VAC
Abstract: A randomized comparison of cisplatin alone or in combination
with methotrexate, vinblastine, and doxorubicin in patients with metastatic
urothelial carcinoma: a cooperative group study.
PURPOSE: A prospective randomized trial was performed to determine if
the addition of methotrexate, vinblastine, and doxorubicin to cisplatin
(M-VAC) imparted a response rate or a survival advantage over single-agent
cisplatin in patients with advanced urothelial carcinoma. PATIENTS AND METHODS:
From October 1984 through May 1989, 269
patients with advanced urothelial carcinoma were entered onto this international
intergroup trial and randomized to receive intravenous (IV) cisplatin (70
mg/m2) alone or with methotrexate (30 mg/m2 on days 1, 15, 22), vinblastine
(3 mg/m2 on days 2, 15, 22) plus doxorubicin (30 mg/m2 on day 2). Cycles
were repeated every 28 days until tumor progression or a maximum of six
cycles. There were 246 fully assessable patients of whom 126 were randomized
to cisplatin alone and 120 were randomized to the M-VAC regimen. RESULTS:
As expected, the M-VAC regimen was associated with a greater toxicity, especially
leukopenia, mucositis, granulocytopenic fever, and drug-related mortality.
Response rates were superior for the M-VAC regimen compared with single-agent
cisplatin (39% v 12%; P less than .0001).
Similarly, the progression-free survival (10.0
v 4.3 months) and overall survival (12.5
v 8.2 months) were significantly greater for the combined therapy
arm. CONCLUSION: Although a more toxic regimen, we found M-VAC to be superior
to single-agent cisplatin with respect to response rate, duration of remission,
and overall survival in patients with advanced urothelial carcinoma.
References
Loehrer PJ Sr, Einhorn LH, Elson PJ, Crawford ED, Kuebler P, Tannock I,
Raghavan D, Stuart-Harris R, Sarosdy MF, Lowe BA, et al. A randomized comparison
of cisplatin alone or in combination with methotrexate, vinblastine, and
doxorubicin in patients with metastatic urothelial carcinoma: a cooperative
group study. J Clin Oncol 1992;
10:1066 - 1073.

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| Regimen |
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methotrexate.... 30 mg/sqm IV
days 1, 15, 22.
vinblastine..... 3 mg/sqm IV days 2, 15, 22.
adriamycin...... 30 mg/sqm day 2.
cisplatin....... 70 mg/sqm IV day 2 after vigorous hydration.
FREQUENCY....... Repeat cycles every 28 days. |
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Summary |
M-VAC
v single agent cisplatin in metastatic bladder cancer |
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Response Rate |
39% v 12% |
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Progression
Free Survival |
10.0 v 4.3 months |
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Overall Survival |
12.5 v 8.2 months |
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Toxicity |
leukopenia,
mucositis, granulocytopenic fever, and drug-related mortality were greater
in the combination arm. |
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