PURPOSE The purpose is to determine the plasma pharmacokinetics, the maximum-tolerable dose and to preliminary evaluate the antitumor activity of irinotecan administered as a 7-day continuous infusion every 21 days in metastatic colorectal cancer patients pretreated with 5-fluorouracil or raltitrexed. EXPERIMENTAL DESIGN A total of 13 patients entered the study. Three received irinotecan at 2...

A molecularly imprinted polymer (MIP) was synthesized by non-covalent imprinting polymerization using irinotecan as template. Methacrylic acid and 4-vinylpyridine were selected as functional monomers. An optimized procedure coupled to LC-PDA analysis was developed for the selective solid-phase extraction of irinotecan from various organic media. A specific capacity of 0.65 µmol•g-1 for the MIP ...

Over the past decade, irinotecan has become one of the first-line chemotherapeutic agents used in the treatment of metastatic colorectal cancer. Recently, irinotecan has been administered transarterially in order to perform chemoembolization in the liver. In the limited number of reports available to date using this approach, serious adverse effects have not yet been reported. In this paper, we...

PURPOSE Although patients with newly diagnosed WHO grade 3 malignant glioma have a more favorable prognosis than those with WHO grade 4 malignant glioma, salvage therapies following recurrence offer essentially palliative benefit. We did a phase II trial of bevacizumab, a monoclonal antibody to vascular endothelial growth factor, in combination with irinotecan for patients with recurrent grade ...

185 Background: The FOLFIRI regimen (5-fluorouracil, leucovorin and irinotecan) is a predominant treatment for metastatic colorectal cancer. To optimize the benefit patients, it would be desirable to increase efficacy of irinotecan by increasing exposure SN-38 (the active metabolite cancer cells, while maintaining good safety profile. oral drug SCO-101, that currently being developed Scandion O...

BACKGROUND Outcomes for children with relapsed and refractory neuroblastoma are dismal. The combination of irinotecan and temozolomide has activity in these patients, and its acceptable toxicity profile makes it an excellent backbone for study of new agents. We aimed to test the addition of temsirolimus or dinutuximab to irinotecan-temozolomide in patients with relapsed or refractory neuroblast...

PURPOSE The ATP-binding cassette transporter ABCG2 (breast cancer resistance protein) is an efflux protein that plays a role in host detoxification of various xenobiotic substrates, including the irinotecan metabolite 7- ethyl-10-hydroxycamptothecin (SN-38). The ABCG2 421C>A polymorphism has been associated with reduced protein expression and altered function in vitro. The aim of this study was...

BACKGROUND Serine hydrolases (SHs) are among the largest classes of enzymes in humans and play crucial role in many pathophysiological processes of cancer. We have undertaken a comprehensive proteomic analysis to assess the differential expression and cellular localization of SHs, which uncovered distinctive expression of Carboxylesterase 2 (CES2), the most efficient carboxyl esterase in activa...

UNLABELLED The purpose of this study was to determine therapy-induced changes in 18F-FDG incorporation at the colorectal tumor cell level in response to conventional and novel chemotherapy agents and examine how these changes relate to factors involved in 18F-FDG incorporation. METHODS SW620 cells were treated with inhibitory concentration of 50% (IC50) doses (determined by MTT) of 5-fluorour...

PURPOSE To compare response rates for two schedules of irinotecan with vincristine in patients with rhabdomyosarcoma at first relapse or disease progression. PATIENTS AND METHODS Patients with first relapse or progression of rhabdomyosarcoma and an unfavorable prognosis were randomly assigned to one of two treatment schedules of irinotecan with vincristine: regimen 1A included irinotecan 20 m...