PMID: 2103842Jan 1, 1990Paper

Response to doxorubicin and cyclophosphamide of a human pleural mesothelioma clinically and as a xenograft in nude rats

In Vivo
C J Lindén

Abstract

The effect of doxorubicin (DOX) and cyclophosphamide (CYC) on human pleural mesothelioma AKG was evaluated clinically and compared to the response of the same tumour as a xenograft in athymic rats. The response of the xenograft to each of the drugs was assessed as reduction of the area under the tumour--volume curve (1-AUC), as reduction of the relative tumour volume (1-RTV) and as specific growth delay (SGD) induced by the drug. Treatment of the xenograft with DOX (7mg/kg i.p.) as a single drug at the maximum tolerated dose (MTD) in athymic rats resulted in 1-AUC, 1-RTV and SGD of 0.54, 0.44 and 0.77, respectively. Likewise, treatment with CYC (100 mg/kg i.p.) at MTD resulted in 1-AUC, 1-RTV and SGD of 0.72, 0.45 and 0.73, respectively. Drugs were denoted as active if 1-AUC greater than 0.85, 1-RTV greater than 0.64 or SGD greater than 2. Consequently, both drugs were classified as inactive against the xenograft, corresponding to the progression of the patient's tumour during treatment with a combination of DOX and CYC at MTD.

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