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CHOP - rituximab regimen
Abstract: CHOP chemotherapy plus rituximab compared with CHOP alone
in elderly patients with diffuse large-B-cell lymphoma.
BACKGROUND: The standard treatment for patients with diffuse large-B-cell
lymphoma is cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP).
Rituximab, a chimeric monoclonal antibody against the CD20 B-cell antigen,
has therapeutic activity in diffuse large-B-cell lymphoma. We conducted
a randomized trial to compare CHOP chemotherapy plus rituximab with CHOP
alone in elderly patients with diffuse large-B-cell lymphoma. METHODS: Previously
untreated patients with diffuse large-B-cell lymphoma, 60 to 80 years old,
were randomly assigned to receive either eight cycles of CHOP every three
weeks (197 patients) or eight cycles of CHOP plus rituximab given on day
1 of each cycle (202 patients). RESULTS: The rate of complete response was
significantly higher in the group that received CHOP plus rituximab than
in the group that received CHOP alone (76 percent vs. 63 percent, P=0.005).
With a median follow-up of two years, event-free and overall survival times
were significantly higher in the CHOP-plus-rituximab group (P<0.001 and
P=0.007, respectively). The addition of rituximab to standard CHOP chemotherapy
significantly reduced the risk of treatment failure and death (risk ratios,
0.58 [95 percent confidence interval, 0.44 to 0.77] and 0.64 [0.45 to 0.89],
respectively). Clinically relevant toxicity was not significantly greater
with CHOP plus rituximab. CONCLUSIONS: The addition of rituximab to the
CHOP regimen increases the complete-response rate and prolongs event-free
and overall survival in elderly patients with diffuse large-B-cell lymphoma,
without a clinically significant increase in toxicity.
References
Coiffier B, Lepage E, Briere J, Herbrecht R, Tilly H, Bouabdallah R,
Morel P, Van Den Neste E, Salles G, Gaulard P, Reyes F, Lederlin P, Gisselbrecht
C. CHOP chemotherapy plus rituximab compared with CHOP alone in elderly
patients with diffuse large-B-cell lymphoma. N Engl J Med. 2002 Jan 24;346(4):235-42.

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| Regimen |
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Rituximab....... 375 mg / M2
IV day 1
infusion is started at 50 mg / hr (25 mg / hr in patients with circulating
tumor cells) and slowly increased to a maximum of 400 mg / hr (300 mg
/ hr during initial infusion)
Cyclophosphamide....... 750 mg / M2 IV day 1
Doxorubican....... 50 mg / M2 IV day 1
Vincristine....... 1.4 mg / M2 IV day 1
Prednisone....... 40 mg / M2 PO days 1-5
FREQUENCY every 21 days for 8 cycles. |
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