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Cancer. 2008 Mar 15;112(6):1197-205. doi: 10.1002/cncr.23302.

Dose-intensive chemotherapy with growth factor or autologous bone marrow/stem cell transplant support in first-line treatment of advanced or metastatic adult soft tissue sarcoma: a systematic review.

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1
Ottawa Hospital, Ottawa, Ontario, Canada.

Abstract

A systematic review was performed to determine whether first-line dose-intensive chemotherapy supported by growth factor or autologous bone marrow/stem cell transplantation improves response rate, time-to-disease progression, or survival compared with standard-dose chemotherapy in patients with inoperable, locally advanced, or metastatic soft tissue sarcoma. The MEDLINE, EMBASE, and Cochrane Library databases were searched. Three randomized trials (2 phase 3, 1 phase 2), 12 phase 2, and 5 phase 1 dose-escalation trials were located. One randomized trial (N=314) did not detect significant differences in response rate (P=.65) or survival (log-rank P=.98) between high-dose doxorubicin plus ifosfamide with granulocyte macrophage colony-stimulating factor and doxorubicin plus ifosfamide at standard doses. Progression-free survival, however, was significantly longer in the high-dose arm (log-rank P=.03). Higher rates of thrombocytopenia, infection, grade 3 of 4 asthenia, and stomatitis were observed with high-dose compared with standard-dose chemotherapy. Preliminary results from a second randomized trial (N=162) indicated no benefit with respect to tumor response for an intensified mesna, doxorubicin (Adriamycin), ifosfamide, and dacarbazine regimen with granulocyte colony-stimulating factor support compared with standard doxorubicin, ifosfamide, and dacarbazine. Grade 4 thrombocytopenia was significantly higher with the high-dose regimen. Four phase 2 trials of high-dose regimens observed tumor response rates greater than 50%. Phase 1 trials reported dose-limiting toxicity for dose-intensive chemotherapy regimens. On the basis of the available evidence, high-dose chemotherapy with growth factor or autologous bone marrow/stem cell transplantation should not be used in the routine treatment of patients with inoperable, locally advanced, or metastatic soft tissue sarcoma.

PMID:
18224666
DOI:
10.1002/cncr.23302
[Indexed for MEDLINE]
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