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Страна 1 од 21 резултати
Phase I dose-escalation study of F14512, a polyamine-vectorized topoisomerase II inhibitor, in patients with platinum-refractory or resistant ovarian cancer.
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Purpose To determine the maximum tolerated dose (MTD) of F14512, a topoisomerase II inhibitor designed to target cancer cells through the polyamine transport system, (three-hour daily infusion given for 3 consecutive days every 3 weeks) in platinum-refractory or resistant ovarian cancer. Other
Phase I evaluation of intravenous difluoromethylornithine--a polyamine inhibitor.
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Difluoromethylornithine (DFMO), a non-competitive inhibitor of ornithine decarboxylase (ODC), the rate limiting enzyme of the polyamine synthetic pathway was evaluated in a Phase I trial. Intravenous DFMO was given to twenty patients with refractory leukemia by continuous infusion in doses from 5.5
Sequential inhibition of polyamine synthesis. A phase I trial of DFMO (alpha-difluoromethylornithine) and methyl-GAG [methylglyoxal-bis(guanylhydrazone)].
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Both DFMO and methyl-GAG inhibit sequential enzymatic reactions in the pathway of polyamine biosynthesis. Since polyamines may be important factors in proliferation of cancer cells, we initiated a phase-I study of these agents in patients with advanced cancer. DFMO was given by mouth at a constant
A Phase II study of the polyamine analog N1,N11-diethylnorspermine (DENSpm) daily for five days every 21 days in patients with previously treated metastatic breast cancer.
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OBJECTIVE
Polyamines are ubiquitous intracellular polycationic molecules essential for cell growth and differentiation. Polyamine analogs down-regulate ornithine decarboxylase, induce spermidine/spermine N1-acetyltransferase, deplete natural polyamine pools, inhibit growth, and induce programmed
Phase I trial of the polyamine analog N1,N14-diethylhomospermine (DEHSPM) in patients with advanced solid tumors.
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BACKGROUND
This phase I study was conducted to determine maximal tolerated dose (MTD) and dose-limiting toxicities (DLT) in patients with advanced solid tumors treated with the polyamine analog N1, N14-diethylhomospermine (DEHSPM).
METHODS
Patients were treated with DEHSPM administered as a
Phase I and pharmacokinetic study of the polyamine synthesis inhibitor SAM486A in combination with 5-fluorouracil/leucovorin in metastatic colorectal cancer.
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OBJECTIVE
The purpose of our study was to determine the maximum-tolerated dose, dose-limiting toxicity, safety profile, and pharmacokinetics of the polyamine synthesis inhibitor SAM486A given in combination with 5-fluorouracil/leucovorin (5-FU/LV) in cancer patients.
METHODS
Patients with advanced
Clinical efficacy, tolerability, and safety of SAM486A, a novel polyamine biosynthesis inhibitor, in patients with relapsed or refractory non-Hodgkin's lymphoma: results from a phase II multicenter study.
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OBJECTIVE
SAM486A is a new inhibitor of S-adenosyl-methionine-decarboxylase, a key enzyme for polyamine biosynthesis. It is more potent than the first generation S-adenosyl-methionine-decarboxylase inhibitor methylglyoxal bis-guanylhydrazone. This Phase IIa study reports the findings of SAM486A
A phase I study of a new polyamine biosynthesis inhibitor, SAM486A, in cancer patients with solid tumours.
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Because tumour cell proliferation is highly dependent upon up-regulation of de-novo polyamine synthesis, inhibition of the polyamine synthesis pathway represents a potential target for anticancer therapy. SAM486A (CGP 48664) is a new inhibitor of the polyamine biosynthetic enzyme
A phase I and pharmacokinetic study of SAM486A, a novel polyamine biosynthesis inhibitor, administered on a daily-times-five every-three-week schedule in patients with Advanced solid malignancies.
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OBJECTIVE
SAM486A is a novel inhibitor of the polyamine biosynthetic enzyme S-adenosylmethionine decarboxylase (SAMDC). This study was performed to characterize the toxicity profile and the pharmacological behavior and to determine the maximum tolerated dose (MTD) of SAM486A administered by a 1-h
Unusual central nervous system toxicity in a phase I study of N1N11 diethylnorspermine in patients with advanced malignancy.
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The objectives of this study were to determine the dose limiting toxicity (DLT) and other major toxicities, the maximum tolerated dose (MTD) and the human pharmacokinetics of N1N11 diethylnorspermine (DENSPM), a new polyamine analog which in experimental systems inhibits the biosynthesis of
Phase I--II trial of methyl-GAG in the treatment of patients with metastatic renal adenocarcinoma.
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Methyl-GAG, a polyamine synthesis inhibitor, was prospectively evaluated in the treatment of advanced renal adenocarcinoma. Twenty-five patients with measurable disease received methyl-GAG weekly at a starting dose of 500 mg/m2 iv, with dose escalation by 50 mg/m2/week (maximum dose, 825). All 25
The use of tomato aminoaldehyde dehydrogenase 1 for the detection of aldehydes in fruit distillates.
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Plant NAD(+)-dependent aminoaldehyde dehydrogenases (AMADHs, EC 1.2.1.19) belong to the family 10 of aldehyde dehydrogenases. They participate in the metabolism of polyamines or osmoprotectants. The enzymes are characterized by their broad substrate specificity covering ω-aminoaldehydes, aliphatic
Oral nutritional supplement prevents weight loss and reduces side effects in patients in advanced lung cancer chemotherapy.
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Weight loss in patients with cancer is caused by cancer cachexia and chemotherapy-induced nausea and vomiting. Recent developments in antiemetic drugs have substantially improved nausea and vomiting, but this intervention did not reduce weight loss and other more severe side effects of chemotherapy,
Phase I trial of alpha-difluoromethyl ornithine (DFMO) and methylglyoxal bis (guanylhydrazone) (MGBG) in patients with advanced prostatic cancer.
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Both alpha-difluoromethyl ornithine (DFMO) and methylglyoxal bis (guanylhydrazone) (MGBG) inhibit sequential enzymatic reactions in the pathway of polyamine biosynthesis. Since polyamines may be important factors in proliferation of cancer cells and DFMO combined with MGBG has shown synergistic
Phase II trial of methylglyoxal bis-guanylhydrazone (MGBG) in refractory small cell lung cancer.
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Methylglyoxal bis-guanylhydrazone (MGBG), a potent inhibitor of polyamine synthesis, has demonstrated single agent activity against a number of tumor types including malignant lymphomas and head and neck, esophageal and non-small cell lung cancers. The growth of small cell lung cancer (SCLC) cell
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