Laboratory and Clinical Evidence of Synergistic Cytotoxicity of Sequential Treament With Gemcitabine Followed by Docetaxel in the Treatment of Sarcoma
2004
Purpose A recent report of the combination of gemcitabine and docetaxel described favorable results in patients with uterine leiomyosarcoma. The objective of this report is to describe experience with this combination in a variety of histologic subtypes of sarcoma. Additionally, cell-culture studies were performed to assess the effect of the sequence of drug administration on colony formation. Patients and Methods A medical record review of 35 patients receiving the gemcitabine/docetaxel combination was undertaken. Gemcitabine 675 mg/m2 intravenously was administered over 90 minutes on days 1 and 8, and docetaxel 100 mg/m2 intravenously was administered over 60 minutes on day 8 of a 21-day cycle. Cell culture studies using the SAOS-2 osteosarcoma cell line and MCF-7 breast cancer cell line were also performed. Gemcitabine and docetaxel were added to cells either simultaneously for 24 hours, gemcitabine for 24 hours followed by docetaxel for 24 hours, or the reverse sequence. Results Thirty-five patients w...
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