Clin Cancer Res
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To compare the in vivo tissue distribution of folate-targeted liposomes (FTLs) injected i.v. in mice bearing folate receptor (FR)-overexpressing tumors (mouse M109 and human KB carcinomas, and mouse J6456 lymphoma) to that of nontargeted liposomes (NTLs) of similar composition. ⋯ Whereas folate targeting does not enhance overall liposome deposition in tumors, the targeting profile of tumor versus other tissues is substantially different and intratumor liposome distribution in ascitic tumors is affected favorably with a selective shift toward liposome association with FR-expressing cells.
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Clinical Trial
Phase I and correlative study of combination bryostatin 1 and vincristine in relapsed B-cell malignancies.
Bryostatin 1 activates protein kinase C (PKC) with short-term exposure and results in depletion of PKC with prolonged exposure. Preclinical in vitro and in vivo studies demonstrate synergistic activity and increased tumor apoptosis in B-cell malignancies when a prolonged infusion of bryostatin 1 is followed by vincristine. ⋯ Given the lack of myelosuppression and early evidence of clinical efficacy, additional exploration of this regimen in non-Hodgkin's lymphoma and multiple myeloma is warranted.
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Induction chemotherapy with carboplatin and paclitaxel followed by concomitant TFHX (paclitaxel, infusional 5-fluorouracil, hydroxyurea, and twice-daily radiation therapy administered every other week) has resulted in 70% 3-year survival in stage IV patients. Locoregional and distant control rates were 94 and 93%, respectively. In an attempt to decrease toxicity without compromising local control, a second cohort of patients was treated with a lower dose of radiation to sites of potential microscopic disease. ⋯ In this second trial, induction chemotherapy with carboplatin and paclitaxel followed by TFHX chemoradiotherapy results in high survival and progression-free survival. The reduction in radiation dose did not compromise survival or disease control compared with our prior study using higher radiation doses. Data continues to support definitive evaluation of this approach.
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This study was conducted to assess the feasibility of administering the oral diarylsulfonylurea (DSU) ILX-295501 on a weekly for 3 weeks every 4-week schedule. The study also sought to determine the maximum tolerated dose (MTD) of ILX-295501 on this schedule, characterize its pharmacokinetic behavior, and seek preliminary evidence of anticancer activity. ⋯ The recommended dose for Phase II studies of the oral DSU ILX-295501 administered weekly for 3 weeks every 4 weeks is 1000 mg/m(2)/day for both minimally pretreated and HP patients. The characteristics of the myelosuppressive effects of ILX-295501, the paucity of severe nonhematological toxicities, and preliminary antitumor activity warrant disease-directed evaluations of ILX-295501.
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The purpose of this study was to establish the maximum tolerated dose (MTD), dose-limiting toxicities (DLTs), and preliminary activity of BMS-188797 administered weekly. ⋯ The MTD and the recommended Phase II dose of weekly BMS-188797 is 50 mg/m(2). The drug demonstrates antitumor activity in taxane-refractory solid tumors and is now being evaluated in combination with carboplatin.