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Purpose: Hyperthermic intraperitoneal chemotherapy is continuously under evaluation in ovarian cancer. The purpose of the present study was to evaluate the effect of chemotherapy, drug concentration and temperature. Materials and Methods: A human ovarian carcinoma cell line was used. The effect of hyperthermia combined with chemotherapy was analyzed. Results: When hyperthermia was combined with chemotherapy, the 50% lethal dose (LD₅₀) decreased with the duration of exposure. The effect of temperature was similar between 39 and 43°C for a 30-min exposure. For a 60- to 90-min exposure, the LD₅₀ was equivalent between 38 and 43°C. Beyond 40°C, an increase in platinum salt concentration was necessary to obtain similar results according to the duration of exposure. Conclusions: The cytotoxic effect of the combination seemed to be potentiated and limited at 40°C.

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Purpose: Hyperthermic intraperitoneal chemotherapy (HIPEC) is under continuous evaluation as a potential treatment for ovarian cancer. The purpose of this study was to evaluate the effect of chemotherapy, drug concentration and temperature. Materials and Methods: We examined the combined effects of hyperthermia and taxane chemotherapy on the clonogenic survival of the human ovarian carcinoma SHIN-3 cell line in vitro. Results: When hyperthermia was combined with chemotherapy, the median lethal dose (LD50) was equivalent regardless of the duration of exposure, and was independent of the exposure temperature. Taxanes showed a similar LD50 over the temperature range tested. Conclusions: In our study, hyperthermia does not increase the cytotoxic effects of taxanes, at least for the concentrations and durations tested.