camptothecin/buinneach

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Leathanach 1 ó 121 torthaí

Novel hydrophilic camptothecin derivatives conjugated to branched glycerol trimer suppress tumor growth without causing diarrhea in murine xenograft models of human lung cancer.

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Logáil Isteach / Cláraigh

Camptothecin possesses broad antitumor spectra on various cancers. In spite of its marked tumor suppressing potency, camptothecin is too hydrophobic to be solved in water, and therefore it is not currently in clinical use. CPT-11 (irinotecan) is one of the hydrophilic analogs of camptothecin and

[Study on the mechanisms of diarrhea induced by a new anticancer camptothecin derivative, irinotecan hydrochloride (CPT-11), in rats].

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Logáil Isteach / Cláraigh

We investigated the mechanisms of CPT-11-induced diarrhea. 1) CPT-11 (80 mg/kg, i.v.) induced watery diarrhea within 1 hr after dosing in saline-loaded (10 ml/kg, p.o.) rats. This was partially inhibited by subcutaneous injection of atropine (1 mg/kg) or ondansetron (1 mg/kg) and almost completely

Discovery of novel selective inhibitors of human intestinal carboxylesterase for the amelioration of irinotecan-induced diarrhea: synthesis, quantitative structure-activity relationship analysis, and biological activity.

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Logáil Isteach / Cláraigh

The dose-limiting toxicity of the highly effective anticancer agent 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin (irinotecan; CPT-11) is delayed diarrhea. This is thought to be caused by either bacteria-mediated hydrolysis of the glucuronide conjugate of the active metabolite

A phase I clinical and pharmacokinetic study of the camptothecin glycoconjugate, BAY 38-3441, as a daily infusion in patients with advanced solid tumors.

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Logáil Isteach / Cláraigh

BACKGROUND The aim of this study was to define the maximum tolerated dose (MTD), dose-limiting toxicity (DLT) and pharmacokinetics of the camptothecin glycoconjugate BAY 38-3441, administered as an infusion for 30 min on two separate schedules every 3 weeks. METHODS A total of 81 patients with

Phase I and pharmacokinetic study of the camptothecin analog DX-8951f administered as a 30-minute infusion every 3 weeks in patients with advanced cancer.

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Logáil Isteach / Cláraigh

OBJECTIVE DX-8951f is a totally synthetic derivative of camptothecin with greater cytotoxicity and more potent topoisomerase I inhibition than SN-38, topotecan, and camptothecin in preclinical studies. This phase I study aimed to describe the toxicity and to determine the maximum-tolerated dose

Effects of breast cancer resistance protein inhibitors and pharmaceutical excipients on decreasing gastrointestinal toxicity of camptothecin analogs.

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Logáil Isteach / Cláraigh

OBJECTIVE To investigate the effect of breast cancer resistance protein (BCRP) inhibitors and pharmaceutical excipients on reducing the biliary excretion of camptothecins (CPT), ameliorating delayed-type diarrhea and intestinal mucosa damage induced by CPT. METHODS The cumulative biliary excretion

Phase II study of rubitecan, an oral camptothecin in patients with advanced colorectal cancer who have failed previous 5-fluorouracil based chemotherapy.

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Logáil Isteach / Cláraigh

BACKGROUND Rubitecan (RFS-2000, 9NC, Orathecin) is an orally bioavailable camptothecin analogue, with evidence of preclinical activity in colon cancer cell lines. We evaluated oral rubitecan (5 days on, 2 days rest per week) on a continuous schedule, in patients with advanced colorectal cancer

[A phase II study of CPT-11, a camptothecin derivative, in patients with primary lung cancer. CPT-11 Cooperative Study Group].

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Logáil Isteach / Cláraigh

A Phase II study of CPT-11, a new camptothecin, was performed in patients with primary lung cancer. Patients with previously untreated non-small cell carcinomas (group A), or previously treated non-small cell carcinomas (group B), and with small cell carcinomas (group C), were enrolled in this

Adsorption of irinotecan onto oral adsorbent AST-120 (Kremezin) for preventing delayed diarrhea.

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Logáil Isteach / Cláraigh

OBJECTIVE One of the significant dose-limiting toxicities of irinotecan hydrochloride (CPT-11) is severe diarrhea due to impairment of the intestinal membrane induced by the excreted CPT-11 and its metabolites. AST-120 (Kremezin) is a prominent oral adsorbent that consists of porous spherical

DX-8951f, a hexacyclic camptothecin analog, on a daily-times-five schedule: a phase I and pharmacokinetic study in patients with advanced solid malignancies.

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Logáil Isteach / Cláraigh

OBJECTIVE To assess the feasibility of administering DX-8951f (exatecan mesylate), a water-soluble, camptothecin analog, as a 30-minute intravenous infusion daily for 5 days every 3 weeks, determine the maximum-tolerated dose (MTD) and pharmacokinetic (PK) behavior of DX-8951f, and seek preliminary

Phase I clinical trial of irinotecan (CPT-11), 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin, and cisplatin in combination with fixed dose of vindesine in advanced non-small cell lung cancer.

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Logáil Isteach / Cláraigh

Irinotecan hydrochloride (CPT-11), a semisynthetic derivative of camptothecin, has been demonstrated to be active against solid tumors such as non-small cell lung cancer and colorectal cancer. Two combination phase I trials were undertaken to determine the maximum tolerated dose of CPT-11 in

Prevention of irinotecan (CPT-11)-induced diarrhea by oral alkalization combined with control of defecation in cancer patients.

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Logáil Isteach / Cláraigh

It has been reported that 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin (CPT-11) and its active metabolite, 7-ethyl-10-hydroxy-camptothecin (SN-38), have absorption characteristics of weakly basic drugs, suggesting that alkalization of the intestinal lumen might reduce

Phase I and pharmacological study of a new camptothecin derivative, exatecan mesylate (DX-8951f), infused over 30 minutes every three weeks.

Ní féidir ach le húsáideoirí cláraithe ailt a aistriú

Logáil Isteach / Cláraigh

OBJECTIVE A Phase I study of exatecan, a new water-soluble camptothecin derivative, was conducted to determine the maximum tolerated dose and a recommended dose, according to an internationally standardized core protocol. Pharmacological profiles of lactone and total (lactone + carboxylate) exatecan

Intestinal alkalization as a possible preventive mechanism in irinotecan (CPT-11)-induced diarrhea.

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Logáil Isteach / Cláraigh

The therapeutic efficacy of irinotecan (CPT-11), a DNA topoisomerase inhibitor, is often limited by the induction of severe late-onset diarrhea. This prodrug and its active metabolite, 7-ethyl-10-hydroxy-camptothecin (SN-38), have a labile alpha-hydroxy-lactone ring that undergoes pH-dependent

A phase I and pharmacokinetic study of pegylated camptothecin as a 1-hour infusion every 3 weeks in patients with advanced solid malignancies.

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Logáil Isteach / Cláraigh

OBJECTIVE To assess the feasibility of administering camptothecin (CPT), the prototypic topoisomerase I inhibitor, as polyethylene glycol (PEG)-CPT, a macromolecule consisting of CPT conjugated to chemically modified PEG. The study also sought to determine the maximum-tolerated dose (MTD) of

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