Phase I pharmacological study of intra-arterially infused fotemustine for colorectal liver metastases.
Fotemustine was investigated in 17 patients with progressive hepatic metastases from colorectal carcinoma to define the maximally tolerated dose for a daily hepatic intra-arterial infusion (HAI) schedule. Haematotoxicity was delayed, dose-dependent and related to pretreatment, with thrombo- and leucocytopenia being dose-limiting. Local side-effects at the liver were mild. Infection (WHO grade III) occurred in 1 patient due to neutropenia. Other side-effects, particularly renal, pulmonal, neurological or cardiac toxicity, mucositis and diarrhoea, hair loss or allergic reactions did not occur. Pharmacokinetic analysis indicated a short plasma half-life (t1/2 = 25.8 +/- 11.5 min) and a high body clearance (CL = 2193 +/- 870 ml/min) with large inter- and intra-individual variations. Of 15 evaluable patients, one complete and three partial responses were observed (ORR = 27%; CI95% [4.5-49.5%]). All tumour remissions appeared at higher dose levels in previously untreated patients. Considering the absence of mucosal side-effects, such as mucositis/diarrhoea and of hepatic toxicity, this agent was well tolerated. The recommended intra-arterial dose for consecutive phase II trials is 125 mg/m2/day1-3.[1]References
- Phase I pharmacological study of intra-arterially infused fotemustine for colorectal liver metastases. Hartmann, J.T., Schmoll, E., Bokemeyer, C., Fety, R., Lucas, C., Giroux, B., Schmoll, H.J. Eur. J. Cancer (1998) [Pubmed]
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