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- Parker, C., et al.
(författare)
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Alpha Emitter Radium-223 and Survival in Metastatic Prostate Cancer
- 2013
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Ingår i: New England Journal of Medicine. - 0028-4793 .- 1533-4406. ; 369:3, s. 213-223
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Tidskriftsartikel (refereegranskat)abstract
- Background Radium-223 dichloride (radium-223), an alpha emitter, selectively targets bone metastases with alpha particles. We assessed the efficacy and safety of radium-223 as compared with placebo, in addition to the best standard of care, in men with castration-resistant prostate cancer and bone metastases. Methods In our phase 3, randomized, double-blind, placebo-controlled study, we randomly assigned 921 patients who had received, were not eligible to receive, or declined docetaxel, in a 2:1 ratio, to receive six injections of radium-223 (at a dose of 50 kBq per kilogram of body weight intravenously) or matching placebo; one injection was administered every 4 weeks. In addition, all patients received the best standard of care. The primary end point was overall survival. The main secondary efficacy end points included time to the first symptomatic skeletal event and various biochemical end points. A prespecified interim analysis, conducted when 314 deaths had occurred, assessed the effect of radium-223 versus placebo on survival. An updated analysis, when 528 deaths had occurred, was performed before crossover from placebo to radium-223. Results At the interim analysis, which involved 809 patients, radium-223, as compared with placebo, significantly improved overall survival (median, 14.0 months vs. 11.2 months; hazard ratio, 0.70; 95% confidence interval [CI], 0.55 to 0.88; two-sided P=0.002). The updated analysis involving 921 patients confirmed the radium-223 survival benefit (median, 14.9 months vs. 11.3 months; hazard ratio, 0.70; 95% CI, 0.58 to 0.83; P<0.001). Assessments of all main secondary efficacy end points also showed a benefit of radium-233 as compared with placebo. Radium-223 was associated with low myelosuppression rates and fewer adverse events. Conclusions In this study, which was terminated for efficacy at the prespecified interim analysis, radium-223 improved overall survival. (Funded by Algeta and Bayer HealthCare Pharmaceuticals; ALSYMPCA ClinicalTrials.gov number, NCT00699751.)
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- Franck-Lissbrant, Ingela, 1969, et al.
(författare)
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Population-based study on use of chemotherapy in men with castration resistant prostate cancer
- 2013
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Ingår i: Acta Oncologica. - : Informa UK Limited. - 0284-186X .- 1651-226X. ; 52:8, s. 1593-1601
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Tidskriftsartikel (refereegranskat)abstract
- Background. Chemotherapy prolongs life and relieves symptoms in men with castration resistant prostate cancer (CRPC). There is limited information on a population level on the use of chemotherapy for CRPC. Material and methods. To assess the use of chemotherapy in men with CRPC we conducted a register-based nationwide population-based study in Prostate Cancer data Base Sweden (PCBaSe) and a nationwide in-patient drug register (SALT database) between May 2009 and December 2010. We assumed that men who died of prostate cancer (PCa) underwent a period of CRPC before they died. Results. Among the 2677 men who died from PCa during the study inclusion period, 556 (21%) had received chemotherapy (intravenous or per oral) detectable within the observation period in SALT database. Specifically, 239 (61%) of men <70 years had received chemotherapy, 246 (30%) of men between 70 and 79 years and 71 (5%) men older than 80 years. The majority of men 465/556 (84%) had received a docetaxel-containing regimen. Among chemotherapy treated men, 283/556 (51%) received their last dose of chemotherapy during the last six months prior to death. Treatment with chemotherapy was more common among men with little comorbidity and high educational level, as well as in men who had received curatively intended primary treatment. Conclusion. A majority of men younger than 70 years with CRPC were treated with chemotherapy in contrast to men between 70 and 79 years of whom half as many received chemotherapy. Chemotherapy treatment was often administered shortly prior to death. The low uptake of chemotherapy in older men with CRPC may be caused by concerns about tolerability of treatment, as well as treatment decisions based on chronological age rather than global health status.
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- Nilsson, J., et al.
(författare)
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'Will I be able to have a baby?' Results from online focus group discussions with childhood cancer survivors in Sweden
- 2014
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Ingår i: Human Reproduction. - : Oxford University Press. - 0268-1161 .- 1460-2350. ; 29:12, s. 2704-2711
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Tidskriftsartikel (refereegranskat)abstract
- STUDY QUESTION: What do adolescent and young adult survivors of childhood cancer think about the risk of being infertile?SUMMARY ANSWER: The potential infertility, as well as the experience of having had cancer, affects well-being, intimate relationships and the desire to have children in the future.WHAT IS KNOWN ALREADY: Many childhood cancer survivors want to have children and worry about possible infertility.STUDY DESIGN, SIZE, DURATION: For this qualitative study with a cross-sectional design, data were collected through 39 online focus group discussions during 2013.PARTICIPANTS/MATERIALS, SETTING, METHODS: Cancer survivors previously treated for selected diagnoses were identified from The Swedish Childhood Cancer Register (16-24 years old at inclusion, ≥5 years after diagnosis) and approached regarding study participation. Online focus group discussions of mixed sex (n = 133) were performed on a chat platform in real time. Texts from the group discussions were analysed using qualitative content analysis.MAIN RESULTS AND THE ROLE OF CHANCE: The analysis resulted in the main category Is it possible to have a baby? including five generic categories: Risk of infertility affects well-being, Dealing with possible infertility, Disclosure of possible infertility is a challenge, Issues related to heredity and Parenthood may be affected. The risk of infertility was described as having a negative impact on well-being and intimate relationships. Furthermore, the participants described hesitation about becoming a parent due to perceived or anticipated physical and psychological consequences of having had cancer.LIMITATIONS, REASONS FOR CAUTION: Given the sensitive topic of the study, the response rate (36%) is considered acceptable. The sample included participants who varied with regard to received fertility-related information, current fertility status and concerns related to the risk of being infertile.WIDER IMPLICATIONS OF THE FINDINGS: The results may be transferred to similar contexts with other groups of patients of childbearing age and a risk of impaired fertility due to disease. The findings imply that achieving parenthood, whether or not with biological children, is an area that needs to be addressed by health care services.STUDY FUNDING/COMPETING INTERESTS: The study was financially supported by The Cancer Research Foundations of Radiumhemmet, The Swedish Childhood Cancer Foundation and the Doctoral School in Health Care Science, Karolinska Institutet. The authors report no conflicts of interest.
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