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Sökning: WFRF:(Kohne CH)

  • Resultat 1-9 av 9
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1.
  • Aartsen, M. G., et al. (författare)
  • Flavor Ratio of Astrophysical Neutrinos above 35 TeV in IceCube
  • 2015
  • Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 114:17
  • Tidskriftsartikel (refereegranskat)abstract
    • A diffuse flux of astrophysical neutrinos above 100 TeV has been observed at the IceCube Neutrino Observatory. Here we extend this analysis to probe the astrophysical flux down to 35 TeV and analyze its flavor composition by classifying events as showers or tracks. Taking advantage of lower atmospheric backgrounds for showerlike events, we obtain a shower-biased sample containing 129 showers and 8 tracks collected in three years from 2010 to 2013. We demonstrate consistency with the (f(e) : f(mu) : f(tau))(circle plus) approximate to (1 : 1 : 1)(circle plus) flavor ratio at Earth commonly expected from the averaged oscillations of neutrinos produced by pion decay in distant astrophysical sources. Limits are placed on nonstandard flavor compositions that cannot be produced by averaged neutrino oscillations but could arise in exotic physics scenarios. A maximally tracklike composition of (0 : 1 : 0)(circle plus) is excluded at 3.3 sigma, and a purely showerlike composition of (1 : 0 : 0)(circle plus) is excluded at 2.3 sigma.
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  • Herrmann, Richard, et al. (författare)
  • Gemcitabine plus capecitabine compared with gemcitabine alone in advanced pancreatic cancer : a randomized, multicenter, phase III trial of the Swiss Group for Clinical Cancer Research and the Central European Cooperative Oncology Group
  • 2007
  • Ingår i: Journal of Clinical Oncology. - 0732-183X .- 1527-7755. ; 25:16, s. 2212-2217
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose: This phase III trial compared the efficacy and safety of gemcitabine (Gem) plus capecitabine (GemCap) versus single-agent Gem in advanced/metastatic pancreatic cancer. Patients and Methods: Patients were randomly assigned to receive GemCap (oral capecitabine 650 mg/m2 twice daily on days 1 to 14 plus Gem 1,000 mg/m2 by 30-minute infusion on days 1 and 8 every 3 weeks) or Gem (1,000 mg/m2 by 30-minute infusion weekly for 7 weeks, followed by a 1-week break, and then weekly for 3 weeks every 4 weeks). Patients were stratified according to center, Kamofsky performance score (KPS), presence of pain, and disease extent. Results: A total of 319 patients were enrolled between June 2001 and June 2004. Median overall survival (OS) time, the primary end point, was 8.4 and 7.2 months in the GemCap and Gem arms, respectively (P = .234). Post hoc analysis in patients with good KPS (score of 90 to 100) showed a significant prolongation of median OS time in the GemCap arm compared with the Gem arm (10.1 v 7.4 months, respectively; P = .014). The overall frequency of grade 3 or 4 adverse events was similar in each arm. Neutropenia was the most frequent grade 3 or 4 adverse event in both arms. Conclusion: GemCap failed to improve OS at a statistically significant level compared with standard Gem treatment. The safety of GemCap and Gem was similar. In the subgroup of patients with good performance status, median OS was improved significantly. GemCap is a practical regimen that may be considered as an alternative to single-agent Gem for the treatment of advanced/metastatic pancreatic cancer patients with a good performance status.
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  • Papamichael, D., et al. (författare)
  • Treatment of the elderly colorectal cancer patient : SIOG expert recommendations
  • 2009
  • Ingår i: Annals of Oncology. - 0923-7534 .- 1569-8041. ; 20:1, s. 5-16
  • Forskningsöversikt (refereegranskat)abstract
    • Colorectal cancer (CRC) is one of the commonest malignancies of Western countries, with approximately half the incidence occurring in patients > 70 years of age. Elderly CRC patients, however, are understaged, undertreated and underrepresented in clinical trials. The International Society of Geriatric Oncology created a task force with a view to assessing the potential for developing guidelines for the treatment of elderly (geriatric) CRC patients. A review of the evidence presented by the task force members confirmed the paucity of clinical trial data in elderly people and the lack of evidence-based guidelines. However, recommendations have been proposed on the basis of the available data and on the emerging evidence that treatment outcomes for fit, elderly CRC patients can be similar to those of younger patients. It is hoped that these will pave the way for formal treatment guidelines based upon solid scientific evidence in the future.
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  • Schmoll, H. J., et al. (författare)
  • ESMO Consensus Guidelines for management of patients with colon and rectal cancer. A personalized approach to clinical decision making
  • 2012
  • Ingår i: Annals of Oncology. - 0923-7534 .- 1569-8041. ; 23:10, s. 2479-2516
  • Tidskriftsartikel (refereegranskat)abstract
    • Colorectal cancer (CRC) is the most common tumour type in both sexes combined in Western countries. Although screening programmes including the implementation of faecal occult blood test and colonoscopy might be able to reduce mortality by removing precursor lesions and by making diagnosis at an earlier stage, the burden of disease and mortality is still high. Improvement of diagnostic and treatment options increased staging accuracy, functional outcome for early stages as well as survival. Although high quality surgery is still the mainstay of curative treatment, the management of CRC must be a multi-modal approach performed by an experienced multi-disciplinary expert team. Optimal choice of the individual treatment modality according to disease localization and extent, tumour biology and patient factors is able to maintain quality of life, enables long-term survival and even cure in selected patients by a combination of chemotherapy and surgery. Treatment decisions must be based on the available evidence, which has been the basis for this consensus conference-based guideline delivering a clear proposal for diagnostic and treatment measures in each stage of rectal and colon cancer and the individual clinical situations. This ESMO guideline is recommended to be used as the basis for treatment and management decisions.
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  • Sorbye, H., et al. (författare)
  • Patient characteristics and stratification in medical treatment studies for metastatic colorectal cancer : a proposal for standardization of patient characteristic reporting and stratification
  • 2007
  • Ingår i: Annals of Oncology. - 0923-7534 .- 1569-8041. ; 18:10, s. 1666-1672
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Prognostic factors have the potential to determine the survival of patients to a greater extent than current antineoplastic agents. Despite this knowledge, there is no consensus on, first, what patient characteristics to report and, second, what stratification factors to use in metastatic colorectal cancer trials. Patients and methods: Seven leading oncology and medical journals were reviewed for phase II and III publications reporting on medical treatment of metastatic colorectal cancer patients during 2001–2005. One hundred and forty-three studies with 21 214 patients were identified. The reporting of patient characteristics and use of stratification was noted. Results: Age, gender, performance status, metastases location, sites and adjuvant chemotherapy were often reported (99–63%). Laboratory values as alkaline phosphatase, lactate dehydrogenase and white blood cell count, repeatedly found to be of prognostic relevance, were rarely reported (5–9%). Stratification was used in all phase III trials; however, only study centre was used with any consistency. Conclusion: There is considerable inconsistency in the reporting of patient characteristics and use of stratification factors in metastatic colorectal cancer trials. We propose a standardization of patient characteristics reporting and stratification factors. A common set of characteristics and strata will aid in trial reporting, interpretation and future meta-analyses.
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