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- W2053412372 abstract "BackgroundIn this study, we analyzed the usefulness of adjuvant chemotherapy for non-small cell lung cancer based on the histoculture drug response assay (HDRA).MethodsFrom September 2001 to December 2008, 65 patients with pathologic stage II or higher non-small cell lung cancer who underwent surgery received two-cycle HDRA-based adjuvant chemotherapy. Chemosensitivity to cisplatin, carboplatin, paclitaxel, docetaxel, gemcitabine, and irinotecan was examined by the HDRA. All patients were classified according to the number of administered HDRA-positive drugs: the prediction-sensitive group (PSG) (n = 31) comprised patients treated with two HDRA-positive drugs and the prediction-nonsensitive group (PNSG) (n = 34) comprised those treated with a combination of one HDRA-positive and one HDRA-negative drug or two HDRA-negative drugs. The clinical outcomes of the two groups were analyzed.ResultsThe overall 5-year survival rate of the PSG was 82.4%. On the other hand, that of the PNSG was 40.1%. There were significant differences between the two groups (p = 0.03). The 5-year disease-free survival rate was more favorable in the PSG than in the PNSG (PSG: 56.5%, PNSG: 30.1%, p = 0.05). Multivariate analysis showed that chemotherapy based on the HDRA was a significant prognostic factor (p = 0.03).ConclusionsThe prognosis of patients treated with two HDRA-positive drugs was significantly better than that of those treated with one HDRA-positive drug or HDRA-negative drugs. Adjuvant chemotherapy based on the in vitro HDRA may be useful to improve survival in patients who have undergone surgery. In this study, we analyzed the usefulness of adjuvant chemotherapy for non-small cell lung cancer based on the histoculture drug response assay (HDRA). From September 2001 to December 2008, 65 patients with pathologic stage II or higher non-small cell lung cancer who underwent surgery received two-cycle HDRA-based adjuvant chemotherapy. Chemosensitivity to cisplatin, carboplatin, paclitaxel, docetaxel, gemcitabine, and irinotecan was examined by the HDRA. All patients were classified according to the number of administered HDRA-positive drugs: the prediction-sensitive group (PSG) (n = 31) comprised patients treated with two HDRA-positive drugs and the prediction-nonsensitive group (PNSG) (n = 34) comprised those treated with a combination of one HDRA-positive and one HDRA-negative drug or two HDRA-negative drugs. The clinical outcomes of the two groups were analyzed. The overall 5-year survival rate of the PSG was 82.4%. On the other hand, that of the PNSG was 40.1%. There were significant differences between the two groups (p = 0.03). The 5-year disease-free survival rate was more favorable in the PSG than in the PNSG (PSG: 56.5%, PNSG: 30.1%, p = 0.05). Multivariate analysis showed that chemotherapy based on the HDRA was a significant prognostic factor (p = 0.03). The prognosis of patients treated with two HDRA-positive drugs was significantly better than that of those treated with one HDRA-positive drug or HDRA-negative drugs. Adjuvant chemotherapy based on the in vitro HDRA may be useful to improve survival in patients who have undergone surgery." @default.
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- W2053412372 date "2010-09-01" @default.
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- W2053412372 title "Adjuvant Chemotherapy Based on the In Vitro Histoculture Drug Response Assay for Non-small Cell Lung Cancer Improves Survival" @default.
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- W2053412372 doi "https://doi.org/10.1097/jto.0b013e3181e7d035" @default.
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