Janeen DuChane
TAP Pharmaceutical Products
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Featured researches published by Janeen DuChane.
Cancer | 2007
Leslie Wilson; Ross Tesoro; Eric P. Elkin; Natalia Sadetsky; David M. Latini; Janeen DuChane; Reema Mody; Peter R. Carroll
Studies that compare prostate cancer treatment costs show wide variation. None compare all contemporary treatment costs, and most focus on initial treatment costs. The authors compared healthcare utilization and cost patterns of prostate cancer treatments over a span of 5.5 years in 4553 newly diagnosed patients stratified by age and risk group.
Cancer | 2006
Jun Kawakami; Janet E. Cowan; Eric P. Elkin; David M. Latini; Janeen DuChane; Peter R. Carroll
Prostate cancer is largely an androgen‐sensitive disease. Androgen‐deprivation therapy (ADT) generally has been used for patients with advanced disease. However, ADT is used increasingly as monotherapy for patients with clinically localized disease. The objective of the current report was to describe the characteristics of patients who underwent ADT for the management of localized disease.
The Lancet | 2006
Jun Kawakami; Eric P. Elkin; David M. Latini; Peter R. Carroll; Thomas E. Cowan; Janeen DuChane
Prostate cancer is largely an androgen‐sensitive disease. Androgen‐deprivation therapy (ADT) generally has been used for patients with advanced disease. However, ADT is used increasingly as monotherapy for patients with clinically localized disease. The objective of the current report was to describe the characteristics of patients who underwent ADT for the management of localized disease.
Urology | 2008
Keith M. Bellizzi; David M. Latini; Janet E. Cowan; Janeen DuChane; Peter R. Carroll
OBJECTIVES To examine the contributions of fear of recurrence and the more commonly examined treatment-related symptoms to the health-related quality of life (HRQOL) of men treated for localized prostate cancer. METHODS A total of 730 men with localized disease were identified from the Cancer of the Prostate Strategic Urologic Research Endeavor, a national, prospective study of men with prostate cancer. Pre- to post-treatment changes in fear of recurrence, treatment-specific symptoms and burden, comorbidities at diagnosis, number of new symptoms, and post-treatment HRQOL data were analyzed. RESULTS Linear regression, adjusted for clinical and demographic characteristics, showed that improved fear of recurrence (P <0.01), higher number of post-treatment symptoms (P <0.01), and improved bowel function (P <0.01) significantly predicted better mental health scores. For physical health, improved urinary bother (P <0.01) and lower number of post-treatment symptoms (P <0.01) were associated with better physical health. CONCLUSION Understanding mens fears about cancer recurrence and how these fears influence physical and mental health are important components of providing care to this growing population.
Cancer | 2007
Sara J. Knight; David M. Latini; Stacey L. Hart; Natalia Sadetsky; Christopher J. Kane; Janeen DuChane; Peter R. Carroll
Previous findings have suggested that patient educational attainment is related to cancer stage at presentation and treatment for localized prostate cancer, but there is little information on education and quality of life outcomes. Patient education level and quality of life were examined among men diagnosed with prostate cancer and cared for within an equal‐access health care system, the Department of Veterans Affairs Veterans Health Administration (VA).
Cancer Causes & Control | 2005
June M. Chan; David M. Latini; Janet E. Cowan; Janeen DuChane; Peter R. Carroll
AbstractObjectives: There is a growing epidemiologic literature suggesting an inverse association between history of diabetes and risk of incident prostate cancer. To our knowledge, the relationship between diabetes and tumor features and risk of recurrence among men with prostate cancer has not been examined previously. We hypothesized that men with diabetes would present with more favorable prostate cancer and experience lower risk of recurrence. Methods: We identified 691 men with diabetes at the time of prostate cancer diagnosis, among 6722 men diagnosed with prostate cancer in 1989 to 2002 within CaPSURETM, a community-based prostate cancer registry study. We compared clinical and socio-demographic variables by diabetes status, using χ2 tests, t-tests, and multinomial logistic regression. We examined recurrence rates for prostate cancer among patients with and without diabetes using Kaplan–Meier log-rank tests and Cox proportional hazard models. Results: In multivariate analyses, history of diabetes was not associated with any diagnostic clinical parameter, and treatment-specific recurrence rates for prostate cancer generally did not differ by diabetes history. Among men with low-prognostic risk or who were younger at prostate cancer diagnosis, being diabetic (versus not) was associated with an elevated risk of recurrence after radiation therapy, in multivariate analyses. Conclusions: Contrary to data suggesting that diabetes may be modestly protective against risk of incident prostate cancer, we did not observe any evidence of an inverse association between history of diabetes and aggressiveness at diagnosis or risk of recurrence, in this population of men with prostate cancer.
Cancer | 2006
David M. Latini; Eric P. Elkin; Matthew R. Cooperberg; Natalia Sadetsky; Janeen DuChane; Peter R. Carroll
Few studies of ethnicity and prostate cancer have included Latino men in analyses of baseline clinical characteristics, treatment selection, and disease‐free survival (DFS). The present study examines the impact of Latino ethnicity on these parameters in a large, multiinstitutional database of men with prostate cancer.
The Journal of Urology | 2006
Maxwell V. Meng; Eric P. Elkin; Janeen DuChane; Peter R. Carroll
PURPOSE Increasing the number of cores obtained at the time of transrectal ultrasound guided prostate biopsy has increased the number of cancers identified. However, there is increasing recognition that many men with prostate cancer may not benefit from early, aggressive intervention and that over detection of prostate cancer has resulted in over treatment. We determined the impact of the greater number of prostate biopsies on the nature of cancer identified. MATERIALS AND METHODS In the Cancer of the Prostate Strategic Urologic Research Endeavor database, a longitudinal disease registry of men with prostate cancer, we identified those men diagnosed between 1999 and 2002 with complete data on serum prostate specific antigen, Gleason score, clinical T stage, number of biopsies obtained and number involved with cancer. RESULTS We identified 4,072 men with 6 or more prostate biopsies obtained at initial diagnosis. Of the men 30%, 47% and 24% underwent 6, 7 to 11, and more than 12 biopsies, respectively. The number of biopsies correlated significantly with numerous sociodemographic and clinical variables including prostate specific antigen, comorbidities and income. There did not appear to be differences in disease characteristics as assessed by Kattan and Cancer of the Prostate Risk Assessment scores among men with a biopsy number between 6 and 17. In the subset of 1,548 men undergoing radical prostatectomy, no differences in biochemical-free survival were observed among the various biopsy groups at a median followup of 2.2 years. CONCLUSIONS The increasing number of prostate biopsies obtained at diagnosis increases cancer detection but the impact on disease characteristics remains unclear. Our data suggest that the risk stratification of prostate cancers is independent of biopsy number (6 or greater) in a contemporary cohort of men.
The Journal of Urology | 2006
Paige L. Marr; Eric P. Elkin; Shelley A. Arredondo; Janeen DuChane; Peter R. Carroll
PURPOSE The optimal approach for treating localized prostate cancer remains controversial, leading to a multifactorial decision making process. We characterized the extent to which the presence and number of comorbidities affects treatment for localized prostate cancer. MATERIALS AND METHODS Data were abstracted from a longitudinal observational database of men with prostate cancer. A total of 5,149 men diagnosed with localized prostate cancer between 1995 and 2001 were included in this analysis if they had been treated with RP, external beam radiation, brachytherapy, hormonal therapy or surveillance. Comorbidity was assessed through a patient reported checklist of conditions. Multinomial logistic regression was used to determine the OR of the likelihood of receiving each type of therapy. The number of comorbidities and specific comorbidities in patients receiving RP were compared with comorbidities in patients receiving other treatment. RESULTS The adjusted OR showed a dose response between the number of comorbidities and an increasing probability of any nonRP treatment. In addition, heart disease, stroke or another urinary condition were found to be associated with treatment. CONCLUSIONS Patient comorbidities affect decision making regarding treatment for localized prostate cancer. Urologists and other physicians treating this disease appear to evaluate patient comorbidities when selecting treatment options.
The Journal of Urology | 2006
Kirsten L. Greene; Eric P. Elkin; Armine Karapetian; Janeen DuChane; Peter R. Carroll; Christopher J. Kane
PURPOSE Prostate cancer biopsy information is important for patient risk assessment. Although the number and extent of positive biopsies have been used to predict recurrence, the impact of positive biopsy location and contiguity is less clear. We compared the ability of positive prostate biopsy location and pattern with number and percent positive biopsies to predict recurrence after RP. MATERIALS AND METHODS From CaPSURE we identified 2,037 men treated with RP from 1992 to 2002 for whom detailed biopsy information and 2 or more followup PSA values were available. Treatment failure was defined as 2 consecutive PSA values of 0.2 ng/ml or higher, or a second treatment delivered more than 6 months after RP. Biopsy tumor volume (number and percent positive sites), location of disease (anatomical site, laterality), and contiguity of positive biopsies were entered into Cox proportional hazards models to predict risk of disease recurrence while controlling for Gleason grade, PSA and T stage. RESULTS Higher number and percent of positive biopsy cores were associated with prostate cancer recurrence, risk stratification category and Gleason grade, p <0.0001, HR 1.09 (CI 1.02 to 1.16) and 1.01 (CI 1.00 to 1.01), respectively. Number of biopsy cores taken, laterality, contiguity and positive biopsy location were not associated with disease recurrence. CONCLUSIONS The number and the percentage of biopsies positive for cancer correlated with treatment failure after radical prostatectomy. Contiguity, laterality and location were not associated with recurrence.