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  • 1995-1999  (9)
  • Medizin  (9)
  • XA 52760  (9)
Medientyp
Sprache
Erscheinungszeitraum
  • 1995-1999  (9)
Jahr
Fachgebiete(RVK)
  • Medizin  (9)
RVK
  • 1
    Online-Ressource
    Online-Ressource
    American Society of Clinical Oncology (ASCO) ; 1997
    In:  Journal of Clinical Oncology Vol. 15, No. 5 ( 1997-05), p. 1811-1813
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 15, No. 5 ( 1997-05), p. 1811-1813
    Kurzfassung: To assess the utility of surveillance neuroimaging in detecting recurrent disease in patients treated for medulloblastoma. PATIENTS AND METHODS Records and scans of 59 consecutive patients treated for medulloblastoma between 1984 and 1993 in one institution were retrospectively reviewed. RESULTS Nineteen of 59 patients had recurrence of tumor, of which 17 were available for this study. Eleven of the 17 recurrent patients were asymptomatic at the time of detection. The median time to recurrence was 13 months (range, 3 to 90). CONCLUSION Surveillance scanning detected a majority of recurrences before onset of symptoms. Although the outcome of those with recurrent disease remains poor, early detection with minimum disease provides the best setting in which to test newer therapies. Patients and their parents also were more likely to elect pursuing further treatment when relapse was detected asymptomatically.
    Materialart: Online-Ressource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: American Society of Clinical Oncology (ASCO)
    Publikationsdatum: 1997
    ZDB Id: 2005181-5
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Online-Ressource
    Online-Ressource
    American Society of Clinical Oncology (ASCO) ; 1996
    In:  Journal of Clinical Oncology Vol. 14, No. 11 ( 1996-11), p. 2923-2932
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 14, No. 11 ( 1996-11), p. 2923-2932
    Kurzfassung: The current study evaluates the extent and reversibility of late sequelae after chemotherapy in longterm survivors of testicular cancer. The influence of therapy and patient characteristics and the relationship between different toxicities are assessed. PATIENTS AND METHODS Ninety patients with a median age of 28 years (range, 19 to 53) and a median followup time of 58 months (range, 15 to 159) participated in the clinical examinations, a personal interview, and technical investigations. Overall health and the impact of late toxicity were assessed by the patients. All patients were in complete remission (CR) for at least 1 year. Chemotherapy had consisted of cisplatin (P), bleomycin (B), and vinblastine (V) in 30 patients (33%); P, B, and etoposide (E) in 26 patients (29%); P, B, E, and a vinca alkaloid in 22 patients (24%); and other P-based combination regimens in 12 patients (13%). RESULTS Alterations of gonadotropin levels (follicle-stimulating hormone [FSH] luteinizing hormone [LH] ) in up to 68% of patients and Leydig cell insufficiency in one third of patients were the most frequently detected abnormalities. Approximately 20% of patients had low serum magnesium [Mg] or phosphate levels, or elevated creatinine levels. Cardiovascular risk factors were identifi ed in one third of patients with elevated serum cholesterol levels with or without obesity; 15% had developed arterial hypertension after chemotherapy. The most frequent symptomatic toxicities were Raynaud's phenomenon (RP) in 30% of patients, ototoxicity in 21%, and peripheral neuropathy in 17%. Major risk factors for the development of toxicity were cumulative dose of P (P 〈 .0001 for ototoxicity and neurotoxicity; P 〈 .01 for overall toxicity, gonadal toxicity, and dehydroepiandrosteron elevation; P 〈 .05 for hypertension and Mg depletion) and type of chemotherapy (57% of PVB-treated patients v25% of PEB +/- vincristine-treated patients with RP; P 〈 .01). CONCLUSION The cumulative dose of P was a major predictor for toxicity. Patients and treatment characteristics such as noise exposure, age, history of smoking, and mode of B application were less important. Further clinical trials should evaluate the sequelae of chemotherapy treatment for testicular cancer prospectively.
    Materialart: Online-Ressource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: American Society of Clinical Oncology (ASCO)
    Publikationsdatum: 1996
    ZDB Id: 2005181-5
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Online-Ressource
    Online-Ressource
    American Society of Clinical Oncology (ASCO) ; 1996
    In:  Journal of Clinical Oncology Vol. 14, No. 10 ( 1996-10), p. 2696-2701
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 14, No. 10 ( 1996-10), p. 2696-2701
    Kurzfassung: To determine whether p53 protein expression is similar within primary colorectal cancer (CRC) and synchronous regional and distant metastases and to assess whether p53 nuclear protein expression could predict outcome in patients with synchronous unresectable liver metastases treated by hepatic artery infusional (HAI) chemotherapy. MATERIALS AND METHODS Paraffin sections from tumor and corresponding normal mucosa representative of 50 consecutive advanced CRC cases were examined for p53 nuclear protein expression by immunohistochemistry using the monoclonal antibody PAb 1801. Patterns of p53 nuclear expression were correlated with standard clinicopathologic variables and outcome, including response to HAI and survival. In a subset analysis, the pattern of nuclear p53 immunoreactivity was compared between primary CRC and lymph node and liver metastases. RESULTS Positive nuclear immunoreactivity for p53 protein was found in 72% of cases. The pattern of p53 protein expression in lymph node and liver metastases was identical to that of the primary tumor. The median survival time was 21.0 months in patients with p53-positive tumors and 53.2 months in patients with p53-negative tumors (Wilcoxon test P = .038). Two-year survival rates were 41.7% and 78.6%, respectively (P 〈 .01). No significant difference was found in the response rates to HAI chemotherapy between the two groups. By multivariate analysis, p53 protein status was the single best predictor of survival, with a relative risk of 6.312. CONCLUSION Our results indicate that nuclear p53 protein status in primary CRC is similar to that in metastatic sites and may be the dominant predictor of survival in patients with advanced hepatic metastases.
    Materialart: Online-Ressource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: American Society of Clinical Oncology (ASCO)
    Publikationsdatum: 1996
    ZDB Id: 2005181-5
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 16, No. 12 ( 1998-12), p. 3788-3795
    Kurzfassung: Burkitt-like lymphoma (BLL) is a tumor with morphologic features intermediate between Burkitt's lymphoma (BL) and large-cell lymphoma, but its relationship with these lymphomas is currently unclear. We have therefore analyzed its characteristics within a large series of human immunodeficiency virus (HIV)-associated lymphomas. MATERIALS AND METHODS Clinical, histologic, immunophenotypic, and molecular analyses were performed on 103 patients with AIDS lymphomas. RESULTS Nineteen cases (18.4%) were identified as BLL. They were monoclonal B-cell proliferations, as evaluated by immunoglobulin (Ig) gene rearrangement analyses, and had rearrangement of the c-myc oncogene in 68% of cases but not the bcl-2 gene, in contrast to a previous study on non-HIV-associated BLL. This molecular pattern was therefore identical to that of typical BL, suggesting that they represented tumors of similar origin. However, some features could clearly differentiate BLL from BL and were similar to those seen in the diffuse large-cell immunoblastic lymphomas (DLC-IBL) group. These included a greater frequency of Epstein-Barr Virus (EBV) infection (79% v 48%, P = .04), an upregulation of CD39 (50% v 0%, P = .0007) and CD70 (75% v 15%, P = .003) activation antigens and of the CD11a/LFA-1 adhesion molecule (83% v30%, P = .05), and, finally, a lower CD4 count (mean, 119/microL v 270/microL, P = .04). CONCLUSION BLL is a frequent entity among AIDS lymphomas and should be considered as a morphologic variant of BL in the context of severe immunodepression that occurs in HIV-infected patients.
    Materialart: Online-Ressource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: American Society of Clinical Oncology (ASCO)
    Publikationsdatum: 1998
    ZDB Id: 2005181-5
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    American Society of Clinical Oncology (ASCO) ; 1997
    In:  Journal of Clinical Oncology Vol. 15, No. 4 ( 1997-04), p. 1587-1594
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 15, No. 4 ( 1997-04), p. 1587-1594
    Kurzfassung: To assess the incidence of lymphoma transformation in the natural history of follicular lymphoma (FL) patients and the factors that are predictive of this event. PATIENTS AND METHODS Two hundred twenty patients with FL treated in our institution between 1975 and 1990, with a median follow-up duration of 9 years, were included in this retrospective analysis. RESULTS Transformation was proven by histology in 34 patients or by cytology in 13 patients and was considered as highly probable on clinical arguments in five patients for an overall incidence of 24%. The probability of transformation was 22% at 5 years and 31% at 10 years and tended to plateau after 6 years. Predictive factors for transformation were nonachievement of complete remission (CR) after initial therapy (P 〈 10(-4), low serum albumin level ( 〈 35 g/L) (P = .001), and beta 2-microglobulin level greater than 3 mg/L (P = .02) at diagnosis. In a multiparametric analysis, only beta 2-microglobulin level retained prognostic significance for freedom-from-transformation (FFT) survival (P = .04). Transformation accounted for 44% of deaths and was associated with a poor outcome, with a median survival time of 7 months. CONCLUSION Transformation is an early event in the course of the disease and is mainly observed in patients with known adverse prognostic factors or those who do not achieve CR after initial treatment. These findings may be useful to select follicular lymphoma patients for intensive therapeutic approaches.
    Materialart: Online-Ressource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: American Society of Clinical Oncology (ASCO)
    Publikationsdatum: 1997
    ZDB Id: 2005181-5
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 17, No. 3 ( 1999-03), p. 984-984
    Kurzfassung: PURPOSE: To determine the response rate, time to treatment failure, and toxicity of phenylacetate in patients with recurrent malignant glioma and to identify plasma concentrations achieved during repeated continuous infusion of this agent. PATIENTS AND METHODS: Adult patients with recurrent malignant glioma were treated with phenylacetate. The schedule consisted of a 2-week continuous, intravenous infusion followed by a 2-week rest period (14 days on, 14 days off). A starting dose of 400 mg/kg total body weight per day of phenylacetate was initially used and subsequently changed to 400 mg/kg/d based on ideal body weight. Intrapatient dose escalations were allowed to a maximum of 450 mg/kg ideal body weight/d. Tumor response was assessed every 8 weeks. The National Cancer Institute common toxicity criteria were used to assess toxicity. Plasma concentrations achieved during the patients' first two 14-day infusions were assessed. RESULTS: Forty-three patients were enrolled between December 1994 and December 1996. Of these, 40 patients were assessable for toxicity and response to therapy. Reversible symptoms of fatigue and somnolence were the primary toxicities, with only mild hematologic toxicity. Thirty (75%) of the 40 patients failed treatment within 2 months, seven (17.5%) had stable disease, and three (7.5%) had a response defined as more than 50% reduction in the tumor. Median time to treatment failure was 2 months. Thirty-five patients have died, with a median survival of 8 months. Pharmacokinetic data for this dose schedule showed no difference in the mean plasma concentrations of phenylacetate between weeks 1 and 2 or between weeks 5 and 6. CONCLUSION: Phenylacetate has little activity at this dose schedule in patients with recurrent malignant glioma. Further studies with this drug would necessitate an evaluation of a different dose schedule.
    Materialart: Online-Ressource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: American Society of Clinical Oncology (ASCO)
    Publikationsdatum: 1999
    ZDB Id: 2005181-5
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    Online-Ressource
    Online-Ressource
    American Society of Clinical Oncology (ASCO) ; 1996
    In:  Journal of Clinical Oncology Vol. 14, No. 8 ( 1996-08), p. 2316-2321
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 14, No. 8 ( 1996-08), p. 2316-2321
    Kurzfassung: To assess the efficacy and toxicity of paclitaxel administered as a 3-hour infusion to patients with recurrent malignant glioma. PATIENTS AND METHODS Adult patients with recurrent malignant glioma following radiation therapy, who had received no more than one prior chemotherapy regimen and who had a Karnofsky performance status (KPS) 〉 or = 60, were treated with a 3-hour infusion of paclitaxel every 3 weeks. The initial dose was 210 mg/m2; dose escalation to 240 mg/m2 was allowed. Tumor response was assessed at 6-week intervals using radiographic and clinical criteria. Treatment was continued until documented tumor progression or a total of 12 paclitaxel infusions. RESULTS Of 41 eligible patients, all were assessable for treatment toxicity and 40 (98%) were assessable for response. The response rate (disease stabilization or better) was 35%. Twenty-nine patients (71%) underwent dose escalation to 240 mg/m2 without the use of growth factors. Toxicities included alopecia (98%), nausea (22%), arthralgias (32%), CNS toxicity (24%), peripheral neuropathy (15%), cardiac toxicity (7%), and myelosuppression (10% grade 3 or 4 hematologic toxicity). No patient developed febrile neutropenia. There was one allergic reaction (2%). CONCLUSION Paclitaxel is well tolerated at this dose schedule in patients with recurrent malignant glioma, and affords a modest response rate. Because minimal myelotoxicity was encountered in our patients, a dose-escalating phase I/II study of paclitaxel is planned to determine the maximal-tolerated dose (MTD).
    Materialart: Online-Ressource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: American Society of Clinical Oncology (ASCO)
    Publikationsdatum: 1996
    ZDB Id: 2005181-5
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 8
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 16, No. 6 ( 1998-06), p. 2188-2194
    Kurzfassung: To determine the maximum-tolerated dose (MTD) of paclitaxel administered as a 3-hour infusion in patients with recurrent malignant glioma. PATIENTS AND METHODS Patients were stratified by starting dose of paclitaxel and concurrent anticonvulsant (AC) use and were treated in cohorts of three patients. The starting dose was 240 mg/m2 administered intravenously with escalations of 30 mg/m2 until the MTD was established. Pharmacokinetic data were obtained for each patient for the first infusion. Tumor response was assessed at 6-week intervals and treatment was continued until documented tumor progression, unacceptable toxicity, or a total of 12 paclitaxel infusions. RESULTS From April 1995 to December 1996, 34 patients were treated; 27 patients in the AC group and seven patients in the non-AC group. The MTD for patients who received ACs was established at 360 mg/m2 and the dose-limiting toxicity (DLT) was central neurotoxicity, characterized as transient encephalopathy and seizures. In contrast, the MTD for patients who did not receive ACs was 240 mg/m2, and myelosuppression, gastrointestinal toxicity, and fatigue were the DLTs. Pharmacokinetic data confirmed that the plasma drug levels and clearance rates were similar for patients in both groups at the respective dose levels that produced DLTs. CONCLUSION The pharmacokinetics of paclitaxel are altered by ACs, and significantly larger doses of the drug can be administered to patients with brain tumors on AC therapy. The toxicity profile is different for patients on AC therapy treated at these higher doses. A phase II study has been initiated that uses a dose of 330 mg/m2 for patients on AC therapy and 210 mg/m2 for patients not on AC therapy.
    Materialart: Online-Ressource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: American Society of Clinical Oncology (ASCO)
    Publikationsdatum: 1998
    ZDB Id: 2005181-5
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 9
    Online-Ressource
    Online-Ressource
    American Society of Clinical Oncology (ASCO) ; 1997
    In:  Journal of Clinical Oncology Vol. 15, No. 4 ( 1997-04), p. 1624-1630
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 15, No. 4 ( 1997-04), p. 1624-1630
    Kurzfassung: Characteristics and outcome of 108 patients with mucosa-associated lymphoid tissue (MALT) lymphoma were analyzed according to initial location of the lymphoma, within or outside of the gastrointestinal (GI) tract. PATIENTS AND METHODS One hundred eight patients with MALT lymphoma were studied. Fifty-five patients (51%) had GI involvement and 53 patients (49%) had another involved extranodal site: 13 orbit; 11 lung; 10 skin; seven parotid; six thyroid; three Waldeyer's ring; two breast; and one pancreas involvement. At diagnosis, 47 patients (44%) had stage IE, 26 (24%) had stage IIE, and 35 (32%) had disseminated disease. No significant difference in the clinical or biologic characteristics was observed between GI and non-GI patients. RESULTS Complete response after the first treatment was reached in 76% of the patients, with no difference between the two subgroups. With a median follow-up of 52 months, median survival was not reached and was identical in the two subgroups, but GI MALT patients had a longer time to progression (8.9 years compared with 4.9 years in non-GI patients; P = .01). The different non-GI locations seemed to have a similar outcome. CONCLUSION MALT lymphoma is an indolent disease that usually presents as localized extranodal tumor without accompanying adverse prognostic factor, and these patients have a good outcome. However, non-GI patients seem to progress more often than GI patients.
    Materialart: Online-Ressource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Sprache: Englisch
    Verlag: American Society of Clinical Oncology (ASCO)
    Publikationsdatum: 1997
    ZDB Id: 2005181-5
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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