A phase I (tumour site-specific) study of carboplatin and temozolomide in patients with advanced melanoma

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Abstract

Temozolomide is an oral alkylating agent that readily crosses the blood-brain barrier and has activity in patients with advanced melanoma. Carboplatin is a convenient outpatient treatment that also has activity in patients with melanoma. The purpose of this study was to assess the safety of a combination of temozolomide and carboplatin, and provide preliminary evidence of efficacy. In all, 30 patients were treated in two stages. In stage I, patients received temozolomide 750 mg m−2, with escalating doses of carboplatin AUC 3-6. In stage 2, patients received temozolomide 1000 mg m −2, with increasing doses of carboplatin until dose-limiting toxicity (DLT) was experienced. In stage 1, 12 patients received 33 cycles of treatment. No grade 3/4 haematological toxicity was experienced up to carboplatin AUC 6. In stage 2, 18 patients received 55 cycles of treatment. The DLT was haematological with grade 4 myelosuppression seen with carboplatin AUC 5. In all, 11 patients were treated with carboplatin AUC 4 to gain further information on toxicity. Myelosuppression remained significant and common with grade 4 thrombocytopenia experienced in 50% of cycles. Two of 28 patients (7%) assessable for efficacy achieved a partial response. None of the 11 patients with brain metastases responded to treatment. The addition of carboplatin to temozolomide 1000 mg m−2 significantly adds to toxicity with frequent grade 3/4 myelosuppression. Preliminary information on efficacy demonstrates that it is unlikely that the combination can be given in doses sufficient to improve on the efficacy of temozolomide alone, © 2003 Cancer Research UK.

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APA

Strauss, S. J., Marples, M., Napier, M. P., Meyer, T., Boxall, J., & Rustin, G. J. S. (2003). A phase I (tumour site-specific) study of carboplatin and temozolomide in patients with advanced melanoma. British Journal of Cancer, 89(10), 1901–1905. https://doi.org/10.1038/sj.bjc.6601414

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