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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    FEBS Letters 319 (1993), S. 133-137 
    ISSN: 0014-5793
    Keywords: Drug resistance ; Episome ; KB-V1 cell ; Nuclear matrix ; Plasmid
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Molecular Cell Research 1221 (1994), S. 115-124 
    ISSN: 0167-4889
    Keywords: Cell cycle ; Hypusine ; Mimosine ; Posttranslational modification
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1569-8041
    Keywords: head and neck cancer ; paclitaxel ; cisplatin ; phase II trial
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Paclitaxel as single agent has shown marked activity in several malignancies. The aim of the present phase II trial was to determine the activity of paclitaxel/cisplatin in patients with metastatic or recurrent squamous cell carcinoma of the head and neck. Patients and methods: 200 mg/m2 paclitaxel was administered over three hours followed by cisplatin (100 mg/m2), repeated every 22 days. Twenty-eight patients were entered and received a total of 99 cycles (median 2, range 1–6). All patients were evaluable for toxicity, and 25 for response. Results: Hematologic toxicities included leukopenia CTC grade 3 in 13 patients, and grade 4 in five patients, neutropenia grade 3 in nine patients, and grade 4 in eigth patients, grade 3 anemia and grade 2 thrombocytopenia in one patient each. Non-hematologic toxicities included hypotension grade 2 (six patients), grade 3 (four patients), and grade 4 (two patients). A decline in renal function was observed in 15 courses and 10 patients, leading to a median delay of 2.5 days. Neurosensory and neuromotor toxicity grade 1 were observed in 13 patients (grade 2: 12 patients; grade 3: one patient), myalgia grade 3 in one patient, asthenia grade 3 in two and grade 4 in one patient. Partial responses were observed in 12 patients for an overall response rate of 48% (95% CI: 28%–68%) with a median response duration of 6.5 months (range 1-10 months). Stable disease was observed in seven patients, of who two also had clinical benefit. Conclusions: Paclitaxel 200 mg/m2 administered over three hours combined with cisplatin 100 mg/m2 is an active regimen warranting further evaluation.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1569-8041
    Keywords: chemotherapy ; cisplatin ; docetaxel ; head and neck cancer ; phase II
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Docetaxel and cisplatin are among the most active antitumor agents in head and neck cancer, and phase I studies found the combination of the two drugs to be feasible. The EORTC ECSG performed a multicenter phase II study in patients with locally advanced, recurrent or metastatic squamous cell carcinoma of the head and neck to evaluate the antitumor efficacy and toxicity of this combination. Patients and methods: Eligibility criteria included written informed consent, a WHO performance status 〈2, life expectancy of 〉12 weeks, and adequate bone marrow, liver and renal function. Neoadjuvant pretreatment with cisplatin-based chemotherapy or prior radiotherapy were allowed. Patients were ineligible if pretreated with taxoids, had CNS involvement, concurrent malignancy, peripheral neuropathy, or no measurable disease. Treatment consisted of docetaxel 100 mg/m2 (one-hour i.v. infusion), followed by cisplatin 75 mg/m2 (three-hour i.v. infusion), repeated every three weeks. Supportive care included hydration, 5HT3- antagonists, and corticosteroids. Results: Forty-four patients (median age 55 years, range 35–76) entered the trial; 41 patients were eligible, 164 cycles of treatment were evaluable for toxicity, and 31 patients for response. Fourteen patients had undergone prior surgery, 15 had received radiotherapy, and five had had chemotherapy. A median number of four treatment cycles (range 1–6) was given. Hematologic and non-hematologic toxicities were common, but hypersensitivity reactions and fluid retention were very infrequent due to corticosteroid prophylaxis. Four patients were taken off the study due to toxicity, and one toxic death occurred due to pneumonia. Among 41 eligible patients, objective responses as confirmed by independent review included six complete remissions and 16 partial remissions, resulting in an overall response rate of 53.7% (95% confidence interval: 37.4%–69.3%). Responses occurred in locally advanced, recurrent and metastatic disease, both in pre- and non-pretreated patients. Of 22 evaluable, non-pretreated patients with locally advanced or metastatic disease, five achieved complete responses, and 14 partial responses. Observed among nine evaluable pretreated patients with locally advanced or metastatic head and neck cancer were one complete response and two partial responses. Conclusion: The combination of docetaxel and cisplatin is feasible and active in locally advanced, recurrent, and metastatic squamous cell carcinoma of the head and neck.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1569-8041
    Keywords: camptothecin analogue ; phase II ; second-line treatment ; small-cell lung cancer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background:GI147211, a 10,11-ethylenedioxy substituted analogueof camptothecin (CPT), was brought into clinical development because of itshigher water solubility and greater potency as compared to topotecan (TPT).The antitumor activity of GI147211 as second-line therapy in small-cell lungcancer (SCLC) was assessed after stratification of patients in refractory (noresponse to initial treatment or relapse within three months from last cycle)and chemosensitive (relapse more than three months from last cycle). Patients and methods:Sixty-seven patients were entered in thestudy and sixty-two were evaluable for response, twenty-eight in therefractory and thirty-four in the chemosensitive group. All patients hadreceived 1 line of chemotherapy; radiation had also been given in 29 cases,6 in the refractory and 23 in the chemosensitive group. GI147211 wasadministered at 1.2 mg/m2/day as 30-min infusion for fiveconsecutive days every three weeks. Results:The overall response rate was 16.6% (11 of 66patients; 95% confidence interval (95% CI):8.5%–27.5%), 10.3% (3 of 29 patients; 95%CI: 2.2%–27%) in the refractory and 21.1% (8 of 37patients; 95% CI: 9.5%–37%) in the chemosensitivegroup. Only partial responses (PR) were observed with a median duration of PRof 4.8 months (5.7 months in the refractory and 5.2 in the chemosensitivegroup). Hematological toxicity consisted mainly of neutropenia (grades3–4 in 25% of cycles) and thrombocytopenia (grades 3–4 in23% of cycles); non-hematological toxicity was mild to moderate andconsisted of nausea (22% of cycles), vomiting (11%), malaise(34%). Conclusions:At the dose and schedule tested GI147211 is an activenew agent for second-line treatment of SCLC; the antitumor activity andtoxicity profile are comparable to those observed with TPT which remains theleading CPT analogue for salvage treatment. Interest has been renewed in theclinical development of GI147211 by preclinical data with the liposomalformulation showing an increased therapeutic index.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0843
    Keywords: Key words Podophyllotoxin derivative ; Pharmacokinetics ; Pharmacodynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  NK 611 is a new podophyllotoxin derivative in which a dimethyl amino group replaces a hydroxyl group at the sugar moiety of etoposide. This results in profound physico-chemical differences: NK 611 is much less hydrophobic than etoposide. Preclinical studies have shown that NK 611 is advantageous in terms of bioavailability and of the potency of its anticancer activity. A clinical phase I study was performed in cancer patients within the framework of the AIO. Additionally, its pharmacokinetics and pharmacodynamics were investigated. NK 611 was given to 26 patients at doses ranging from 60 to 140 mg/m2 [maximum tolerated dose (MTD) 120 mg/m2] in a 30-min infusion. Plasma and urine samples were collected from 25 patients and analyzed using a validated high-performance liquid chromatography (HPLC) assay procedure. The concentration versus time curve of total NK 611 in plasma samples was best described by a three-compartment model. The overall median pharmacokinetic values were as follows (ranges are given in parantheses): mean residence time (MRT) 16.5 (5.4– 42.3)h, terminal half-life 14.0 (8.2–30.5)h, volume of distribution at steady state (Vss) 11.4 (7.9–18.1) l/m2, and plasma clearance (Clp) 15.1 (3.6–36.4) ml min-1 m -2. The total systemic drug exposure, represented by the area under the curve (AUC), varied between 53.4 and 532.0 μg ml-1 h. The mean AUC (±SD) increased with the dose from 78.7±3.7 μg ml-1 h at 60 mg/m2 up to 202.8±157.2 μg ml-1 h at 120 mg/m2. The mean urinary excretion (UE) fraction of unchanged drug at 48 h after the end of the infusion varied between 3.0% and 25.8% of the total dose delivered. Analysis of ultrafiltrate samples showed a protein binding of approx. 99%. The percentage reduction in white blood cells (WBC) and neutrophils (ANC) correlated with the dose, AUC, and AUCfree. The best relationship between the percentage of reduction in ANC and a pharmacokinetic parameter (AUC) took a nonlinear Hill-type form. The laboratory parameter for kidney or liver function did not correlate with the AUC. The variation of pharmacokinetic parameters within each dose level was profound. The reason for this pharmacological behavior remains unclear and should be investigated in further studies.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Der Onkologe 3 (1997), S. 350-353 
    ISSN: 1433-0415
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Definiert ist das CUP-Syndrom durch das Vorliegen eines histologisch oder zytologisch gesicherten malignen Tumors, dessen Primärherd mittels üblicher Tumordiagnostik nicht gefunden wird. Das Patientenkollektiv ist sehr heterogen hinsichtlich Histologie und klinischem Präsentationsmuster. Bei Diagnosestellung liegt häufig bereits ein fortgeschrittenes Krankheitsstadium vor.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1434-0879
    Keywords: Cisplatin ; Doxorubicin ; Granulocyte colony stimulating factor (G-CSF) ; Granulocyte-macrophage colony stimulating factor (GM-CSF) ; Human transitional carcinoma cell lines Interleukin-3 (LL-3) ; In vitro growth modulating effects ; Methotrexate ; Vinblastine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In five of eight human transitional carcinoma cell (TCC) lines a proliferative response has been reported during exposure to interleukin-3 (IL-3), granulocyte-macrophage colony stimulating factor (GM-CSF) and granulocyte colony stimulating factor (GM-CSF). To elucidate possible growth-modulating effects of these factors combined with clinically relevant antineoplastic agents, cells of the human TCC lines EJ28 and T24 were exposed to methotrexate (MTX), vinblastine (VBL), doxorubicin (DXR) and cisplating (CDDP) with and without single or continuous exposure to IL-3, GM-CSF and G-CSF at concentrations of 1–100 ng/ml. Compared with cells exposed only to chemotherapy, significant inhibitory effects occurred as a result of continuous exposure to IL-3 or GM-CSF at the highest activities with CDDP and MTX in the T24 and EJ28 lines; continuous G-CSF administration (100 ng/ml) in combination with MTX led to significant growth inhibition in the EJ28 line. In contrast, no significant growth modulation was found on combined administration of DXR or VBL with any one of the three colony stimulating factors tested.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-0584
    Keywords: lymphoma, Non-Hodgkin's ; Leukemia, B-cell, chronic ; Prednimustine ; Mitoxantrone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Thirty-five patients with a mean age of 60.6 years (44–78 years, 22 male, 13 female) with advanced low-grade non-Hodgkin's lymphoma (NHL), chronic lymphocytic leukemia (CLL), or prolymphocytic leukemia (PLL) were treated every 4 weeks with prednimustine 100 mg/m2 p.o. d 1-d 5 and mitoxantrone 8 mg/m2 i.v. d 1 and d 2. Seven patients had CLL, one lymphocytic NHL, two PLL, 13 immunocytoma, nine centroblastic/ centrocytic NHL, and three centrocytic NHL. Twentyfive patients were pretreated. The subjective toxicity of the treatment was mild, with no WHO grade-3 alopecia, polyneuropathy, cardiotoxicity, mucositis, nausea, or vomiting. Hematologic side effects with WHO grade-4 granulopenia and thrombopenia were experienced by 26% and 23% of the patients, respectively. The overall response rate (CR + PR) was 72% for lymphoma patients and 37% for CLL patients, with a median remission duration of 14.6 months. The maximum response was achieved after a median of two treatment courses. Prednimustine with mitoxantrone is a subjectively well tolerated treatment for low-grade malignant NHL, to be further evaluated in phase-III studies. The regimen may shorten the duration of treatment, saving time-consuming outpatient visits and costs.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Investigational new drugs 11 (1993), S. 95-97 
    ISSN: 1573-0646
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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