Gunter Guetens

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Our objective was to determine the response to gemcitabine plus docetaxel in advanced urothelial transitional cell carcinoma in a phase II trial, and gemcitabine distribution between plasma and erythrocytes, following docetaxel administration. Patients with locally advanced or metastatic transitional cell carcinoma, following a maximum of one prior(More)
The aim of this study was to investigate whether relevant plasma levels of dFdU could be detected during concurrent chemoradiation (CRT) with low doses of dFdC administered in patients with head and neck cancer and to assess the toxicity related to dose. dFdC was administered at doses of 5 mg/m² twice weekly or 10, 50, or 100 mg/m² weekly. Plasma(More)
Many tumors are impervious to anticancer agents. Resistance due to lack of cytotoxic penetration into the tumor is often overlooked but can play a significant role in undermining therapy. Insufficient and irregular vascularization of tumors is a possible barrier to drug delivery, but there are others, e.g., impaired vessel permeability and poor interstitial(More)
We investigated the potential chemosensitizing effect of nicotinamide on CPT-11, and the relationship between nicotinamide and CPT-11, intratumoral drug uptake in syngeneic rhabdomyosarcoma tumors in rats. Pretreatment with nicotinamide, known to improve tumor oxygenation, perfusion and radiotherapy effect, only caused a minor increase in tumor growth(More)
OBJECTIVE The influences of flow, perfusion time, and concentration on melphalan (MN) lung levels in a rat model of isolated lung perfusion (ILuP) were studied. METHODS ILuP was performed in WAG/Rij rats by using a single-pass system with 0.5, 0.05, 0.01, and 0.005 mg of MN. Subsequently ILuP with 0.05 mg MN was performed during 30 min with a flow rate of(More)
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