| 1. |
- Schröder, Fritz H, et al.
(författare)
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Screening and prostate-cancer mortality in a randomized European study.
- 2009
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Ingår i: The New England journal of medicine. - 1533-4406 .- 0028-4793. ; 360:13, s. 1320-8
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The European Randomized Study of Screening for Prostate Cancer was initiated in the early 1990s to evaluate the effect of screening with prostate-specific-antigen (PSA) testing on death rates from prostate cancer.
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| 2. |
- Roobol, Monique J., et al.
(författare)
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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
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Ingår i: European Urology. - : Elsevier BV. - 1873-7560 .- 0302-2838. ; 56:4, s. 584-591
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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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| 3. |
- Siltanen, Sanna, et al.
(författare)
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ARLTS1 germline variants and the risk for breast, prostate, and colorectal cancer
- 2008
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Ingår i: European Journal of Human Genetics. - : Springer Science and Business Media LLC. - 1018-4813 .- 1476-5438. ; 16:8, s. 983-91
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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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| 4. |
- Hahn, Robert G., et al.
(författare)
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Blood loss and postoperative complications associated with transurethral resection of the prostate after pretreatment with dutasteride
- 2007
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Ingår i: BJU International. - : Wiley-Blackwell. - 1464-4096 .- 1464-410X. ; 99:3, s. 587-594
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To determine whether pretreatment with dutasteride, a dual 5alpha-reductase inhibitor (5ARI), reduces surgical blood loss or postoperative complications in patients with benign prostatic hyperplasia (BPH) who undergo transurethral resection of the prostate (TURP).PATIENTS AND METHODS: This double-blind, randomized, placebo-controlled, multicentre study comprised 214 patients with BPH. Placebo was compared with dutasteride 0.5 mg/day 2 weeks before and after TURP, or 4 weeks before and 2 weeks after TURP. Surgical blood loss was measured using a haemoglobin photometer (HemoCue AB, Angelholm, Sweden) and postoperative adverse events were recorded. Microvessel density (MVD) was calculated by immunostaining and light microscopy of the prostatic chips.RESULTS: Although dutasteride reduced serum dihydrotestosterone (DHT) by 86-89% in 2-4 weeks, and intraprostatic DHT was approximately 10 times lower than in the placebo group, the (adjusted) mean haemoglobin (Hb) loss during surgery was 2.15-2.55 g Hb/g resectate with no significant difference in blood loss between the groups either during or after TURP. Clot retention occurred in 6-11% and urinary incontinence in 14-15% of patients during the 14 weeks after TURP, with no difference between the groups. The MVD at TURP was also similar for all groups.CONCLUSION: There were no significant reductions in blood loss during or after TURP or complications afterward with dutasteride compared with placebo, despite significant suppression of intraprostatic DHT. Blood loss and transfusion rates in the placebo group were lower than those previously reported in studies where there was a beneficial effect of a 5ARI, relative to placebo, on bleeding during TURP.
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| 5. |
- Iversen, Peter, et al.
(författare)
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Bicalutamide 150 mg in addition to standard care for patients with early non-metastatic prostate cancer : updated results from the Scandinavian Prostate Cancer Period Group-6 Study after a median follow-up period of 7.1 years
- 2006
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Ingår i: Scandinavian Journal of Urology and Nephrology. - London : Taylor & Francis. - 0036-5599 .- 1651-2065. ; 40:6, s. 441-452
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: The Early Prostate Cancer (EPC) programme is evaluating the efficacy and tolerability of bicalutamide following standard care (radiotherapy, radical prostatectomy or watchful waiting) in patients with localized (T1-2, N0/Nx) or locally advanced (T3-4, any N; or any T, N + ) non-metastatic prostate cancer. Herein we report the latest findings after a median follow-up period of 7.1 years from the Scandinavian Prostate Cancer Group (SPCG)-6 study, one of three trials in the EPC programme. MATERIAL AND METHODS: A total of 1218 patients were randomized on a 1:1 basis to either bicalutamide 150 mg/day (n=607) or placebo (n=611) following standard care; 81.4% were followed conservatively (watchful waiting). The primary endpoints were objective progression-free survival (PFS) and overall survival (OS). RESULTS: In patients with localized disease there was no significant difference in PFS [hazard ratio (HR) 0.85; 95% CI 0.69-1.06; p=0.15] and a trend towards decreased OS with bicalutamide plus standard care compared with standard care alone (HR 1.23; 95% CI 0.96-1.58; p=0.11). In patients with locally advanced disease, bicalutamide significantly improved PFS, reducing the risk of progression by 53% compared with standard care alone (HR 0.47; 95% CI 0.37-0.59; p<0.001). The median time to progression was 8.8 years for bicalutamide plus standard care and 7.1 years for standard care alone. There was a significant improvement in OS with bicalutamide plus standard care, with a reduction in the risk of death of 35% versus standard care alone (HR 0.65; 95% CI 0.50-0.85; p=0.001). CONCLUSION: This analysis of the SPCG-6 study showed that bicalutamide plus standard care offers significant PFS and OS benefits for patients with locally advanced disease, but not for those with localized disease.
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| 8. |
- Torniainen, Suvi, et al.
(författare)
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Lactase persistence, dietary intake of milk, and the risk for prostate cancer in Sweden and Finland.
- 2007
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Ingår i: Cancer Epidemiol Biomarkers Prev. - Univ Helsinki, Dept Med Genet, Helsinki 00251, Finland. Univ Helsinki, Cent Hosp, Mol Genet Lab, FIN-00014 Helsinki, Finland. Karolinska Inst, Dept Med Epidemiol & Biostat, S-10401 Stockholm, Sweden. Tampere Univ Hosp, Res Unit, FIN-33521 Tampere, Finland. Tampere Univ Hosp, Dept Clin Chem, FIN-33521 Tampere, Finland. Tampere Univ Hosp, Inst Med Technol, Canc Genet Lab, FIN-33521 Tampere, Finland. Tampere Univ Hosp, Dept Urol, FIN-33521 Tampere, Finland. Univ Tampere, Sch Med, FIN-33101 Tampere, Finland. Univ Milan, Dept Stat, I-20122 Milan, Italy. Univ Umea Hosp, Dept Surg & Perioperat Sci Urol & Androl, S-90185 Umea, Sweden. : AMER ASSOC CANCER RESEARCH. - 1055-9965 .- 1538-7755. ; 16:5, s. 956-61
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Tidskriftsartikel (refereegranskat)
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| 9. |
- van den Bergh, Roderick C N, et al.
(författare)
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Gleason score 7 screen-detected prostate cancers initially managed expectantly: outcomes in 50 men.
- 2009
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Ingår i: BJU international. - 1464-410X. ; 103:11, s. 1472-7
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE To assess whether men newly diagnosed with Gleason 7 prostate cancer are eligible for active surveillance (AS) instead of radical treatment. AS is an appropriate initial strategy in selected men who are presently diagnosed with prostate cancer, as many tumours will not progress during a patient's lifetime. PATIENTS AND METHODS Cancer-specific-, overall and treatment-free survival were analysed retrospectively in men with Gleason score 7 cancer who were initially managed expectantly. All were screen-detected in four centres of the European Randomized Study of Screening for Prostate Cancer. RESULTS In 50 men active therapy was initially withheld if they had Gleason 7 disease; 29 of 50 (58%) would otherwise have been suitable for AS, as they had a prostate-specific antigen (PSA) level of < or =10.0 ng/mL, a PSA density of <0.2 ng/mL/mL, stage T1c/T2, and two or fewer positive biopsy-cores; 44 of 50 (88%) had a Gleason score 3 + 4 = 7. The mean (range) age of the men was 69.5 (59.6-76.2) years and the median (interquartile range) follow-up was 2.6 (0.8-5.0) years; the mean American Society of Anesthesiologists score was 1.8. The 6-year cancer-specific survival (nine patients at risk) was 100%, which sharply contrasted with the 68% overall survival. Men alive at the time of analysis had a favourable PSA level and PSA-doubling time. The 6-year treatment-free survival was only 59%, with most patients switching to active therapy, justified on the basis of their PSA level. However, men with otherwise favourable tumour characteristics and a Gleason score of 3 + 4 = 7 remained treatment-free significantly longer than their counterparts with unfavourable other tumour features and a Gleason score of 4 + 3 = 7. CONCLUSION In selected patients with screen-detected Gleason 3 + 4 = 7 prostate cancer, AS might be an option, especially in those with comorbidity and/or a short life-expectancy.
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