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51.
  • Bernhard, Juerg, et al. (författare)
  • Clinical Benefit Response in Pancreatic Cancer Trials Revisited
  • 2014
  • Ingår i: Oncology Research and Treatment. - 2296-5270. ; 37:1-2, s. 42-48
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: Clinical benefit response (CBR), based on changes in pain, Karnofsky performance status, and weight, is an established palliative endpoint in trials for advanced gastrointestinal cancer. We investigated whether CBR is associated with survival, and whether CBR reflects a wide-enough range of domains to adequately capture patients' perception. Methods: CBR was prospectively evaluated in an international phase III chemotherapy trial in patients with advanced pancreatic cancer (n = 311) in parallel with patient-reported outcomes (PROs). Results: The median time to treatment failure was 3.4 months (range: 0-6). The majority of the CBRs (n = 39) were noted in patients who received chemotherapy for at least 5 months. Patients with CBR (n = 62) had longer survival than non-responders (n = 182) (hazard ratio = 0.69; 95% confidence interval: 0.51-0.94; p = 0.013). CBR was predicted with a sensitivity and specificity of 77-80% by various combinations of 3 mainly physical PROs. A comparison between the duration of CBR (n = 62, median = 8 months, range = 4-31) and clinically meaningful improvements in the PROs (n = 100-116; medians = 9-11 months, range = 4-24) showed similar intervals. Conclusion: CBR is associated with survival and mainly reflects physical domains. Within phase III chemotherapy trials for advanced gastrointestinal cancer, CBR can be replaced by a PRO evaluation, without losing substantial information but gaining complementary information.
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52.
  • Bernhard, J., et al. (författare)
  • Estimating prognosis and palliation based on tumour marker CA 19-9 and quality of life indicators in patients with advanced pancreatic cancer receiving chemotherapy
  • 2010
  • Ingår i: British Journal of Cancer. - 0007-0920 .- 1532-1827. ; 103:9, s. 1318-1324
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: To investigate the prognostic value of quality of life (QOL) relative to tumour marker carbohydrate antigen (CA) 19-9, and the role of CA 19-9 in estimating palliation in patients with advanced pancreatic cancer receiving chemotherapy. METHODS: CA 19-9 serum concentration was measured at baseline and every 3 weeks in a phase III trial (SAKK 44/00-CECOG/PAN.1.3.001). Patients scored QOL indicators at baseline, and before each administration of chemotherapy (weekly or bi-weekly) for 24 weeks or until progression. Prognostic factors were investigated by Cox models, QOL during chemotherapy by mixed-effect models. RESULTS: Patient-rated pain (P<0.02) and tiredness (P<0.03) were independent predictors for survival, although less prognostic than CA 19-9 (P<0.001). Baseline CA 19-9 did not predict QOL during chemotherapy, except for a marginal effect on pain (P<0.05). Mean changes in physical domains across the whole observation period were marginally correlated with the maximum CA 19-9 decrease. Patients in a better health status reported the most improvement in QOL within 20 days before maximum CA 19-9 decrease. They indicated substantially less pain and better physical well-being, already, early on during chemotherapy with a maximum CA 19-9 decrease of >= 50% vs <50%. CONCLUSION: In advanced pancreatic cancer, pain and tiredness are independent prognostic factors for survival, although less prognostic than CA 19-9. Quality of life improves before best CA 19-9 response but the maximum CA 19-9 decrease has no impact on subsequent QOL. To estimate palliation by chemotherapy, patient's perception needs to be taken into account.
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53.
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54.
  • Biggar, Robert J., et al. (författare)
  • Immunoglobulin subclass levels in patients with non-Hodgkin lymphoma
  • 2009
  • Ingår i: International Journal of Cancer. - 0020-7136 .- 1097-0215. ; 124:11, s. 2616-20
  • Tidskriftsartikel (refereegranskat)abstract
    • Allergy/atopy has been suggested to protect against non-Hodgkin lymphoma (NHL) and specific IgE levels are decreased in patients with NHL. We speculated that all immunoglobulin subclass levels might be downregulated in NHL and examined levels of IgM, IgD, IgA, IgE, IgG and IgG(4) in 200 NHL patients and 200 age- and sex-matched controls. Patients with B-cell NHL of many types had consistently lower median immunoglobulin subclass levels than controls. In every subclass except IgD, about 10-15% of B-cell NHL patients had absolute levels below the 2.5 percentile of controls. Subclass levels correlated with each other and many patients had more than one significantly low level. Levels were lowest for IgG(4) and IgE. Patients with chronic lymphocytic leukemia/small lymphocytic lymphoma had especially low total IgE levels. In other B-cell NHL types, total IgE levels were decreased to a similar extent as other immunoglobulin subclasses. In conclusion, low IgE levels are only part of a more generalized loss of immunoglobulins of all subtypes in a wide variety of B-cell NHL types. Low immunoglobulin levels appear to be a consequence of B-cell NHL presence, and we speculate about molecular mechanisms that could reduce all immunoglobulin subclasses in B-cell NHL.
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55.
  • Biggar, Robert J., et al. (författare)
  • Serum YKL-40 and interleukin 6 levels in Hodgkin lymphoma
  • 2008
  • Ingår i: Clinical Cancer Research. - 1078-0432 .- 1557-3265. ; 14:21, s. 6974-8
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: Serum levels of the inflammatory markers YKL-40 and interleukin 6 (IL-6) are increased in many conditions, including cancers. We examined serum YKL-40 and IL-6 levels in patients with Hodgkin lymphoma, a tumor with strong immunologic reaction to relatively few tumor cells, especially in nodular sclerosis Hodgkin lymphoma. EXPERIMENTAL DESIGN: We analyzed Danish and Swedish patients with incident Hodgkin lymphoma (N=470) and population controls from Denmark (n=245 for YKL-40; n=348 for IL-6). Serum YKL-40 and IL-6 levels were determined by ELISA, and log-transformed data were analyzed by linear regression, adjusting for age and sex. RESULTS: Serum levels of YKL-40 and IL-6 increased in Hodgkin lymphoma patients compared with controls (YKL-40, 3.6-fold; IL-6, 8.3-fold; both, P<0.0001). In pretreatment samples from pretreatment Hodgkin lymphoma patients (n=176), levels were correlated with more advanced stages (P(trend), 0.0001 for YKL-40 and 0.013 for IL-6) and in those with B symptoms; however, levels were similar in nodular sclerosis and mixed cellularity subtypes, by EBV status, and in younger (<45 years old) and older patients. Patients tested soon after treatment onset had significantly lower levels than pretreatment patients; however, even >or=6 months after treatment onset, serum YKL-40 and IL-6 levels remained significantly increased compared with controls. In patients who died (n=12), pretreatment levels for YKL-40 and IL-6 were higher than in survivors, although not statistically significantly. CONCLUSIONS: Serum YKL-40 and IL-6 levels were increased in untreated Hodgkin lymphoma patients and those with more advanced stages but did not differ significantly by Hodgkin lymphoma histology. Following treatment, serum levels were significantly lower.
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56.
  • Birgegård, Gunnar, 1944-, et al. (författare)
  • Evaluation of beta globin mRNA as an early marker of haemoglobin response to epoetin treatment
  • 2007
  • Ingår i: Medical Oncology. - 1357-0560 .- 1559-131X. ; 24:3, s. 318-322
  • Tidskriftsartikel (refereegranskat)abstract
    • Approximately 60% of anaemic cancer patients respond to epoetin treatment. An early marker of response would be valuable in order to avoid ineffective treatment. We have previously shown that beta globin mRNA increases rapidly after epoetin beta treatment of healthy controls. In the present study we have evaluated whether a change of this marker during the first 2 weeks of epoetin treatment could predict later Hb response in anaemic cancer patients. Twenty cancer patients with Hb <11 g/dl received epoetin beta (NeoRecormon®) 10,000 IU three times weekly during 6 weeks. Hb, reticulocytes and β-globin mRNA were followed. The latter was measured quantitatively using PCR via the 5′ nuclease assay. Eleven patients responded with a Hb increase of >1 g/dl, nine were nonresponders. All responders increased in β-globin mRNA within 2 weeks, mean 7.7× base-line. With a cut-off of an increase of 3× base-line value, we obtained a specificity of 45% and a sensitivity of 91% for the prediction of a later increase of Hb >1 g/dl. With a cut-off of 4× base-line, the specificity increased to 66%, but the sensitivity decreased to 82%. Beta globin mRNA increases before Hb in all responding patients. However, some non-responding patients also show an increase, and there is a trade-off between specificity and sensitivity as the cut-off level is set at different levels. Compared to reticulocyte count, β-globin mRNA is more reliable in the individual patient, but the clinical usefulness of the assay needs to be evaluated in further studies. 
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57.
  • Birgisson, Helgi, et al. (författare)
  • Adverse effects of preoperative radiation therapy for rectal cancer : long-term follow-up of the Swedish Rectal Cancer Trial.
  • 2005
  • Ingår i: J Clin Oncol. - 0732-183X. ; 23:34, s. 8697-705
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: To analyze the occurrence of subacute and late adverse effects in patients treated with preoperative irradiation for rectal cancer.PATIENTS AND METHODS: The study population included 1,147 patients randomly assigned to preoperative radiation therapy or surgery alone in the Swedish Rectal Cancer Trial conducted 1987 through 1990. Patient data were matched against the Swedish Hospital Discharge Register to identify patients admitted to hospital after the primary treatment of the rectal cancer. Patients with known residual disease were excluded, and patients with a recurrence were censored 3 months before the date of recurrence. Relative risks (RR) with 95% CIs were calculated.RESULTS: Irradiated patients were at increased risk of admissions during the first 6 months from the primary treatment (RR = 1.64; 95% CI, 1.21 to 2.22); these were mainly for gastrointestinal diagnoses. Overall, the two groups showed no difference in the risk of admissions more than 6 months from the primary treatment (RR = 0.95; 95% CI, 0.80 to 1.12). Regarding specific diagnoses, however, RRs were increased for admissions later than 6 months from the primary treatment in irradiated patients for unspecified infections, bowel obstruction, abdominal pain, and nausea.CONCLUSION: Gastrointestinal disorders, resulting in hospital admissions, seem to be the most common adverse effect of short-course preoperative radiation therapy in patients with rectal cancer. Bowel obstruction was the diagnosis of potentially greatest importance, which was more frequent in irradiated than in nonirradiated patients.
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58.
  • Birgisson, Helgi, et al. (författare)
  • Improved survival in cancer of the colon and rectum in Sweden.
  • 2005
  • Ingår i: European Journal of Surgical Oncology. - 0748-7983. ; 31:8, s. 845-53
  • Tidskriftsartikel (refereegranskat)abstract
    • AIMS: To analyse time-trends in survival of patients with colon and rectal cancer in Sweden.PATIENTS AND METHODS: Data including all patients diagnosed with adenocarcinoma of the colon and rectum between 1960 and 1999, from the Swedish Cancer Registry, were analysed. The observed and relative survival rates were calculated according to the Hakulinen cohort method.RESULTS: Five-year relative survival rate for cancer of the colon improved significantly from 39.6% in 1960--1964 to 57.2% in 1995--1999 and for rectal cancer from 36.1 to 57.6%, respectively. Corresponding observed survival improved from 31.2 to 44.3% for colon cancer and from 28.4 to 45.4% for rectal cancer. The largest improvement of survival were seen during the later part of the period observed.CONCLUSION: The survival of patients with colon and rectal cancer in Sweden continues to improve, especially in rectal cancer, which now has a 5-year observed and relative survival rate comparable to that for colon cancer. The survival improvement in rectal cancer is probably a result of the implementation of total mesorectal excision and pre-operative radiotherapy.
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59.
  • Birgisson, Helgi, et al. (författare)
  • Late adverse effects of radiation therapy for rectal cancer : a systematic overview
  • 2007
  • Ingår i: Acta Oncologica. - 0284-186X .- 1651-226X. ; 46:4, s. 504-516
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: The use of radiation therapy (RT) together with improvement in the surgical treatment of rectal cancer improves survival and reduces the risk for local recurrences. Despite these benefits, the adverse effects of radiation therapy limit its use. The aim of this review was to present a comprehensive overview of published studies on late adverse effects related to the RT for rectal cancer. METHODS: Meta-analyses, reviews, randomised clinical trials, cohort studies and case-control studies on late adverse effects, due to pre- or postoperative radiation therapy and chemo-radiotherapy for rectal cancer, were systematically searched. Most information was obtained from the randomised trials, especially those comparing preoperative short-course 5 x 5 Gy radiation therapy with surgery alone. RESULTS: The late adverse effects due to RT were bowel obstructions; bowel dysfunction presented as faecal incontinence to gas, loose or solid stools, evacuation problems or urgency; and sexual dysfunction. However, fewer late adverse effects were reported in recent studies, which generally used smaller irradiated volumes and better irradiation techniques; although, one study revealed an increased risk for secondary cancers in irradiated patients. CONCLUSIONS: These results stress the importance of careful patient selection for RT for rectal cancer. Improvements in the radiation technique should further be developed and the long-term follow-up of the randomised trials is the most important source of information on late adverse effects and should therefore be continued.
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60.
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