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Sökning: WFRF:(Tammela Teuvo L J)

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11.
  • Teerlink, Craig C., et al. (författare)
  • Association analysis of 9,560 prostate cancer cases from the International Consortium of Prostate Cancer Genetics confirms the role of reported prostate cancer associated SNPs for familial disease
  • 2014
  • Ingår i: Human Genetics. - : Springer. - 0340-6717 .- 1432-1203. ; 133:3, s. 347-356
  • Tidskriftsartikel (refereegranskat)abstract
    • Previous GWAS studies have reported significant associations between various common SNPs and prostate cancer risk using cases unselected for family history. How these variants influence risk in familial prostate cancer is not well studied. Here, we analyzed 25 previously reported SNPs across 14 loci from prior prostate cancer GWAS. The International Consortium for Prostate Cancer Genetics (ICPCG) previously validated some of these using a family-based association method (FBAT). However, this approach suffered reduced power due to the conditional statistics implemented in FBAT. Here, we use a case-control design with an empirical analysis strategy to analyze the ICPCG resource for association between these 25 SNPs and familial prostate cancer risk. Fourteen sites contributed 12,506 samples (9,560 prostate cancer cases, 3,368 with aggressive disease, and 2,946 controls from 2,283 pedigrees). We performed association analysis with Genie software which accounts for relationships. We analyzed all familial prostate cancer cases and the subset of aggressive cases. For the familial prostate cancer phenotype, 20 of the 25 SNPs were at least nominally associated with prostate cancer and 16 remained significant after multiple testing correction (p a parts per thousand currency sign 1E (-3)) occurring on chromosomal bands 6q25, 7p15, 8q24, 10q11, 11q13, 17q12, 17q24, and Xp11. For aggressive disease, 16 of the SNPs had at least nominal evidence and 8 were statistically significant including 2p15. The results indicate that the majority of common, low-risk alleles identified in GWAS studies for all prostate cancer also contribute risk for familial prostate cancer, and that some may contribute risk to aggressive disease.
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12.
  • Andriole, Gerald L, et al. (författare)
  • Effect of dutasteride on the risk of prostate cancer.
  • 2010
  • Ingår i: The New England journal of medicine. - 1533-4406. ; 362:13, s. 1192-202
  • Tidskriftsartikel (refereegranskat)abstract
    • We conducted a study to determine whether dutasteride reduces the risk of incident prostate cancer, as detected on biopsy, among men who are at increased risk for the disease.
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13.
  • Roobol, Monique J., et al. (författare)
  • Prostate Cancer Mortality Reduction by Prostate-Specific Antigen-Based Screening Adjusted for Nonattendance and Contamination in the European Randomised Study of Screening for Prostate Cancer (ERSPC)
  • 2009
  • Ingår i: European Urology. - : Elsevier BV. - 1873-7560 .- 0302-2838. ; 56:4, s. 584-591
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Prostate-specific antigen (PSA) based screening for prostate cancer (PCa) has been shown to reduce prostate specific mortality by 20% in an intention to screen (ITS) analysis in a randomised trial (European Randomised Study of Screening for Prostate Cancer [ERSPC]). This effect may be diluted by nonattendance in men randomised to the screening arm and contamination in men randomised to the control arm. Objective: To assess the magnitude of the PCa-specific mortality reduction after adjustment for nonattendance and contamination. Design, setting, and participants: We analysed the occurrence of PCa deaths during an average follow-up of 9 yr in 162 243 men 55-69 yr of age randomised in seven participating centres of the ERSPC. Centres were also grouped according to the type of randomisation (ie, before or after informed written consent). Intervention: Nonattendance was defined as nonattending the initial screening round in ERSPC. The estimate of contamination was based on PSA use in controls in ERSPC Rotterdam. Measurements: Relative risks (RRs) with 95% confidence intervals (Cis) were compared between an ITS analysis and analyses adjusting for nonattendance and contamination using a statistical method developed for this purpose. Results and limitations: In the ITS analysis, the RR of PCa death in men allocated to the intervention arm relative to the control arm was 0.80 (95% CI, 0.68-0.96). Adjustment for nonattendance resulted in a RR of 0.73 (95% CI, 0.58-0.93), and additional adjustment for contamination using two different estimates led to estimated reductions of 0.69 (95% CI, 0.51-0.92) to 0.71 (95% CI, 0.55-0.93), respectively. Contamination data were obtained through extrapolation of single-centre data. No heterogeneity was found between the groups of centres. Conclusions: PSA screening reduces the risk of dying of PCa by up to 31% in men actually screened. This benefit should be weighed against a degree of over diagnosis and overtreatment inherent in PCa screening. (C) 2009 European Association of Urology. Published by Elsevier B.V. All rights reserved.
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14.
  • van Leeuwen, Pim J, et al. (författare)
  • Impacts of a population based prostate cancer screening programme on excess total mortality rates in men with prostate cancer: a randomized controlled trial.
  • 2013
  • Ingår i: Journal of medical screening. - 1475-5793. ; 20:1, s. 33-38
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To assess the effect of screening in terms of excess mortality in the European Randomized Study of Screening for Prostate Cancer (ERSPC). METHODS: A total of 141,578 men aged 55–69 were randomized to systematic screening or usual care in ERSPC sections in Finland, Italy, the Netherlands and Sweden. The excess number of deaths was defined as the difference between the observed number of deaths in the prostate cancer (PC)patients and the expected number of deaths up to 31 December 2006. The expected number was derived from mortality of all study participants before a diagnosis with PC adjusted for study centre,study arm and study attendance. The excess mortality rates were compared between the two study arms. RESULTS: The PC incidence was 9.25 per 1000 person-years in the intervention arm and 5.49 per 1000 person-years in the control arm, relative risk (RR) 1.69 (95% confidence interval [CI]1.62–1.76). The excess mortality among men with PC was 0.29 per 1000 person-years in the intervention arm and 0.37 per 1000 person-years in the control arm; the RR for excess mortality was 0.77 (95% CI 0.55–1.08). The absolute risk reduction in the excess mortality was 0.08 per 1000 person-years. The overall mortality was not significantly different between the intervention and the control arms of the study: RR 0.99 (95% CI 0.96–1.01). CONCLUSIONS: Although the reduction in excess mortality was not statistically significant, the between arm reduction in excess mortality rate was in line with the previously reported 20% reduction in the disease-specific mortality. This finding indicates that the reduction in PC mortality in the ERSPC trial cannot be due to a bias in cause of death adjudication.
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16.
  • Beer, Tomasz M., et al. (författare)
  • Enzalutamide in Men with Chemotherapy-naïve Metastatic Castration-resistant Prostate Cancer : Extended Analysis of the Phase 3 PREVAIL Study
  • 2017
  • Ingår i: European Urology. - : Elsevier BV. - 0302-2838. ; 71:2, s. 151-154
  • Tidskriftsartikel (refereegranskat)abstract
    • Enzalutamide significantly improved radiographic progression-free survival (rPFS) and overall survival (OS) among men with chemotherapy-naïve metastatic castration-resistant prostate cancer at the prespecified interim analysis of PREVAIL, a phase 3, double-blind, randomized study. We evaluated the longer-term efficacy and safety of enzalutamide up to the prespecified number of deaths in the final analysis, which included an additional 20 mo of follow-up for investigator-assessed rPFS, 9 mo of follow-up for OS, and 4 mo of follow-up for safety. Enzalutamide reduced the risk of radiographic progression or death by 68% (hazard ratio [HR] 0.32, 95% confidence interval [CI] 0.28–0.37; p < 0.0001) and the risk of death by 23% (HR 0.77, 95% CI 0.67–0.88; p = 0.0002). Median investigator-assessed rPFS was 20.0 mo (95% CI 18.9–22.1) in the enzalutamide arm and 5.4 mo (95% CI 4.1–5.6) in the placebo arm. Median OS was 35.3 mo (95% CI 32.2–not yet reached) in the enzalutamide arm and 31.3 mo (95% CI 28.8–34.2) in the placebo arm. At the time of the OS analysis, 167 patients in the placebo arm had crossed over to receive enzalutamide. The most common adverse events in the enzalutamide arm were fatigue, back pain, constipation, and arthralgia. This final analysis of PREVAIL provides more complete assessment of the clinical benefit of enzalutamide. PREVAIL is registered on ClinicalTrials.gov as NCT01212991. Patient summary According to data from longer follow-up, enzalutamide continued to provide benefit over placebo in patients with metastatic castration-resistant prostate cancer.
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17.
  • Carlsson, Sigrid, 1982, et al. (författare)
  • Could Differences in Treatment Between Trial Arms Explain the Reduction in Prostate Cancer Mortality in the European Randomized Study of Screening for Prostate Cancer?
  • 2019
  • Ingår i: European urology. - : Elsevier BV. - 1873-7560 .- 0302-2838. ; 75:6, s. 1015-1022
  • Tidskriftsartikel (refereegranskat)abstract
    • Differential treatment between trial arms has been suggested to bias prostate cancer (PC) mortality in the European Randomized Study of Screening for Prostate Cancer (ERSPC).To quantify the contribution of treatment differences to the observed PC mortality reduction between the screening arm (SA) and the control arm (CA).A total of 14 136 men with PC (SA: 7310; CA: 6826) in the core age group (55-69yr) at 16yr of follow-up.The outcomes measurements were observed and estimated numbers of PC deaths by treatment allocation in the SA and CA, respectively. Primary treatment allocation was modeled using multinomial logistic regression adjusting for center, age, year, prostate-specific antigen, grade group, and tumor-node-metastasis stage. For each treatment, logistic regression models were fitted for risk of PC death, separately for the SA and CA, and using the same covariates as for the treatment allocation model. Treatment probabilities were multiplied by estimated PC death risks for each treatment based on one arm, and then summed and compared with the observed number of deaths.The difference between the observed and estimated treatment distributions (hormonal therapy, radical prostatectomy, radiotherapy, and active surveillance/watchful waiting) in the two arms ranged from -3.3% to 3.3%. These figures, which represent the part of the treatment differences between arms that cannot be explained by clinicopathological differences, are small compared with the observed differences between arms that ranged between 7.2% and 10.1%. The difference between the observed and estimated numbers of PC deaths among men with PC was 0.05% (95% confidence interval [CI] -0.1%, 0.2%) when applying the CA model to the SA, had the two groups received identical primary treatment, given their clinical characteristics. When instead applying the SA model to the CA, the difference was, as expected, very similar-0.01% (95% CI -0.3%, 0.2%). Consistency of the results of the models demonstrates the robustness of the modeling approach. As the observed difference between trial arms was 4.2%, our findings suggest that differential treatment explains only a trivial proportion of the main findings of ERSPC. A limitation of the study is that only data on primary treatment were available.Use of prostate-specific antigen remains the predominant explanation for the reduction in PC mortality seen in the ERSPC trial and is not attributable to differential treatment between trial arms.This study shows that prostate cancer deaths in the European screening trial (European Randomized Study of Screening for Prostate Cancer) were prevented because men were diagnosed and treated earlier through prostate-specific antigen screening, and not because of different, or better, treatment in the screening arm compared with the control arm.
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18.
  • Carlsson, Sigrid, 1982, et al. (författare)
  • No excess mortality after prostate biopsy: results from the European Randomized Study of Screening for Prostate Cancer.
  • 2011
  • Ingår i: BJU international. - 1464-410X. ; 107:12, s. 1912-1917
  • Tidskriftsartikel (refereegranskat)abstract
    • Study Type - Harm (RCT)
Level of Evidence 1b OBJECTIVES: To assess possible excess mortality associated with prostate biopsy among screening participants of the European Randomized Study of Screening for Prostate Cancer (ERSPC). SUBJECTS AND METHODS: From three centres in the ERSPC (Finland, The Netherlands and Sweden) 50 194 screened men aged 50.2-78.4 years were prospectively followed. A cohort of 12 959 first-time screening-positive men (i.e. with biopsy indication) was compared with another cohort of 37 235 first-time screening-negative men. Overall mortality rates (i.e. other cause than prostate cancer mortality) were calculated and the 120-day and 1-year cumulative mortality were calculated by the Kaplan-Meier method, with a log-rank test for statistical significance. Incidence rate ratios (RR) and statistical significance were evaluated using Poisson regression analyses, adjusting for age, total PSA level, screening centre and whether a biopsy indication was present, or whether a biopsy was actually performed or not. RESULTS: There was no statistically significant difference in cumulative 120-day other cause mortality between the two groups of men: 0.24% (95% CI, 0.17-0.34) for screening-positive men vs 0.24% (95% CI, 0.20-0.30) for screening-negative men (P= 0.96). This implied no excess mortality for screening-positive men. Screening-positive men who were not biopsied (n= 1238) had a more than fourfold risk of other cause mortality during the first 120 days compared to screening-negative men: RR, 4.52 (95% CI, 2.63-7.74) (P < 0.001), adjusted for age, whereas men who were actually biopsied (n= 11 721) had half the risk: RR, 0.41 (95% CI, 0.23-0.73) (P= 0.002), adjusted for age. Only 14/31 (45%) of the screening-positive men who died within 120 days were biopsied and none died as an obvious complication to the biopsy. CONCLUSIONS: Prostate biopsy is not associated with excess mortality and fatal complications appear to be very rare.
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19.
  • Siltanen, Sanna, et al. (författare)
  • ARLTS1 germline variants and the risk for breast, prostate, and colorectal cancer
  • 2008
  • Ingår i: European Journal of Human Genetics. - : Springer Science and Business Media LLC. - 1018-4813 .- 1476-5438. ; 16:8, s. 983-91
  • Tidskriftsartikel (refereegranskat)abstract
    • Recently, a nonsense alteration Trp149Stop in the ARLTS1 gene was found more frequently in familial cancer cases versus sporadic cancer patients and healthy controls. Here, the role of Trp149Stop or any other ARLTS1 germline variant was evaluated on breast, prostate, and colorectal cancer risk. The whole gene was screened for germline alterations in 855 familial cancer patients. The five observed variants were further screened in 1169 non-familial cancer patients as well as in 809 healthy population controls. The Trp149Stop was found at low frequencies (0.5-1.2%) in all patient subgroups versus 1.6% in controls, and the mutant allele did not co-segregate with disease status in families with multiple affected individuals. The CC genotype in the Cys148Arg variant was slightly more common among both familial and sporadic breast (odds ratio (OR), 1.48; 95% confidence interval (CI), 1.16-1.87; P=0.001) and prostate cancer patients (OR, 1.50; 95% CI, 1.13-1.99; P=0.005) when compared to controls. A novel ARLTS1 variant Gly65Val was found at higher frequency among familial prostate cancer patients (8 of 164, 4.9%) than in controls (13 of 809, 1.6%; OR, 3.14; 95% CI, 1.28-7.70, P=0.016). However, after adjusting for multiple testing, none of these results were still significant. No association was found with any of the variants and colorectal cancer risk. Our results suggest that Trp149Stop is not a predisposition allele in breast, prostate, or colorectal cancer in the Finnish population, and, while the Gly65Val variant may increase familial prostate cancer risk and the Cys148Arg change may affect both breast and prostate cancer risk, the evidence is not strong in these data.
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20.
  • Thomsen, Frederik B., et al. (författare)
  • Survival benefit of early androgen receptor inhibitor therapy in locally advanced prostate cancer : Long-term follow-up of the SPCG-6 study
  • 2015
  • Ingår i: European Journal of Cancer. - : Elsevier BV. - 0959-8049 .- 1879-0852. ; 51:10, s. 1283-1292
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The optimal timing of endocrine therapy in non-metastatic prostate cancer (PCa) is still an issue of debate. Methods: A randomised, double-blind, parallel-group trial comparing bicalutamide 150 mg once daily with placebo in addition to standard care in patients with hormone-naive, non-metastatic PCa. Kaplan-Meier analysis was used to estimate overall survival (OS) and multivariate Cox proportional hazard model was performed to analyse time-to-event (death). Findings: A total of 1218 patients were included into the Scandinavian Prostate Cancer Group (SPCG)-6 study of which 607 were randomised to receive bicalutamide in addition to their standard care and 611 to receive placebo. Median follow-up was 14.6 years. Overall, 866 (71.1%) patients died, 428 (70.5%) in the bicalutamide arm and 438 (71.7%) in the placebo arm, p = 0.87. Bicalutamide significantly improved OS in patient with locally advanced disease (hazard ratios (HR) = 0.77 (95% confidence interval (CI): 0.63-0.94, p = 0.01), regardless of baseline prostate-specific antigen (PSA), with a survival benefit which was apparent throughout the study period. In contrast, survival favoured randomisation to the placebo arm in patients with localised disease (HR = 1.19 (95% CI: 1.00-1.43), p = 0.056). However, a survival gain from bicalutamide therapy was present in patients with localised disease and a baseline PSA greater than 28 ng/mL at randomisation. In multivariate Cox proportional hazard model, only including patients managed on watchful waiting as their standard of care (n = 991) OS depended on age, World Health Organisation (WHO) grade, baseline PSA, clinical stage and randomised treatment. Interpretation: Throughout the 14.6 year follow-up period the addition of early bicalutamide to standard of care resulted in a significant OS benefit in patients with locally advanced PCa. In contrast, patients with localised PCa and low PSA derived no survival benefit from early bicalutamide. The optimal timing for initiating bicalutamide in non-metastatic PCa patients is dependent on disease stage and baseline PSA. (C) 2015 Elsevier Ltd. All rights reserved.
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