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Showing 251 - 300Preclinical Study Finds SPOP Mutation Drives Prostate Cancer Subtype
A genetically engineered mouse model developed by Blattner et al investigating the role of the gene Speckle Type BTB/POZ Protein, or SPOP, as a driver of prostate cancer has found that the mutation drives prostate neoplasia through coordinate deregulation of both P13K/mTOR and androgen receptor...
Use of Evidence-Based Prostate Cancer Imaging in an Integrated Health-Care System
In a study reported in the Journal of Oncology Practice, Salloum et al found that use of nonindicated imaging for diagnostic staging of low-risk prostate cancer in a nonprofit integrated health-care system remained common but has decreased in frequency. As noted by the authors: “The overuse...
Diana D. Jeffery, PhD, on Mental Health Comorbidities: Predictors of Cost and Utilization
Diana D. Jeffery, PhD, of the Defense Health Agency, discusses the need to screen for mental health comorbidities, including depression, anxiety, adjustment disorders, substance use disorders, and persistent mental illnesses, as shown in a study of breast and prostate cancer patients (Abstract 18).
Single Dose of Brachytherapy May Be an Effective Treatment for Localized Prostate Cancer
Results from a new prospective clinical trial indicate that high–dose rate (HDR) brachytherapy administered in a single 19-Gy treatment may be a safe and effective alternative to longer courses of HDR treatment for men with localized prostate cancer. The study was reported by Krauss et al in...
ASCO Quality Care 2017: Mental Health Conditions Contribute to Care-Related Costs, Hospital Visits in Breast and Prostate Cancers
A new analysis of data from the U.S. Military Health System found that mood and adjustment disorders such as anxiety and depression were strong predictors of the annual number of outpatient visits, hospital admissions, and number of days in the hospital for patients with breast and prostate...
Development of a Voided Urine Assay for Detecting Prostate Cancer Noninvasively
Scientists at the Sidney Kimmel Cancer Center at Thomas Jefferson University have developed a noninvasive technique to detect the presence of prostate cancer cells in patients' urine. The pilot study, led by Mathew L. Thakur, PhD, Director, Laboratories of Radiopharmaceutical Research and Molecular ...
Guru Sonpavde, MD, on Prostate Cancer: Targeting DNA Alterations
Guru Sonpavde, MD, of the UAB Comprehensive Cancer Center, discusses his study on circulating tumor DNA alterations in metastatic castration-resistant prostate cancer and the therapeutic direction the data suggest. (Abstract 149)
Paul L. Nguyen, MD, on Prostate Cancer: Active Surveillance
Paul L. Nguyen, MD, of the Dana-Farber Cancer Institute, summarizes a session he co-chaired, which included discussion of Canadian vs U.S. guidelines; ProtecT; genomic and hereditary tests; and imaging to guide active surveillance. (General Session 1)
Paul L. Nguyen, MD, on Predicting Metastasis and Mortality
Paul L. Nguyen, MD, of the Dana-Farber Cancer Institute, discuses an evaluation of the Decipher prostate cancer classifier to predict metastasis and disease-specific mortality from genomic analysis of diagnostic needle biopsy specimens. (Abstract 4)
Joshua M. Lang, MD, on Prostate Cancer: Best of the Journals
Joshua M. Lang, MD, of the University of Wisconsin Carbone Cancer Center, discusses genomic alterations in DNA damage–repair pathways––more common in patients with prostate cancer than previously recognized–– and clinical trials with PARP inhibitors.
L. Michael Glodé, MD, on Prostate Cancer: Results From SWOG S9921
L. Michael Glodé, MD, of the University of Colorado Cancer Center, discusses study findings on adjuvant androgen deprivation vs mitoxantrone plus prednisone plus ADT in high-risk prostate cancer patients following radical prostatectomy. (Abstract 2)
Charles G. Drake, MD, PhD, on Prostate Cancer and Immunology: Expert Perspective
Charles G. Drake, MD, PhD, of Columbia University Medical Center, summarizes his keynote lecture on immunotherapy as a new frontier in prostate cancer and its synergistic use with traditional treatments.
Joshua Armenia, PhD, on Prostate Cancer: Recent Discoveries
Joshua Armenia, PhD, of Memorial Sloan Kettering Cancer Center, discusses new information that is changing the understanding of prostate cancer, including the identification of a new subclass, which represents 21% of cases, and the discovery of recurrently mutated cancer pathways not previously...
2017 GU Cancers Symposium: Blood Test Uncovers Potential New Treatment Targets in Advanced Prostate Cancer
Analysis of free-floating cancer DNA from blood samples has yielded leads for new prostate cancer treatment targets. Using a commercially available “liquid biopsy” test in patients with advanced prostate cancer, researchers found a number of genetic changes in cell-free, circulating...
Researchers Identify ‘Synthetic Essentiality’ as Novel Approach for Locating Cancer Therapy Targets
A new method has been found for identifying therapeutic targets in cancers lacking specific key tumor suppressor genes. The process, which located a genetic site for the most common form of prostate cancer, has potential for developing precision therapy for other cancers, such as breast, brain, and ...
Low Prostate Cancer–Specific Mortality in Men With Benign Initial Transrectal Ultrasound–Guided Biopsy Sets
In a Danish study reported in The Lancet Oncology, Klemann et al found a low risk of prostate cancer–specific mortality in men with benign initial transrectal ultrasound-guided biopsy sets. The risk was particularly low among those with lower prostate-specific antigen (PSA) levels. Study...
Adding Antiandrogen Therapy to Radiation Therapy in Recurrent Prostate Cancer
As reported in The New England Journal of Medicine by Shipley et al in the NRG Oncology Radiation Therapy Oncology Group (RTOG), the final analysis of the phase III RTOG 9601 trial showed that the addition of antiandrogen therapy with bicalutamide to radiation therapy significantly improves overall ...
Benefits of Multiparametric Magnetic Resonance Imaging in Clinically Significant Prostate Cancer
In the UK PROMIS study reported in The Lancet, Ahmed et al found that use of multiparametric magnetic resonance imaging (MP-MRI) might reduce the need for transrectal ultrasound (TRUS)-guided prostate biopsy and may improve detection of clinically significant prostate cancer. Study Details In the ...
Potential Surrogate for All-Cause Mortality Risk in Localized Unfavorable-Risk Prostate Cancer
In a study reported in JAMA Oncology, Royce et al found that a prostate-specific antigen (PSA) nadir > 0.5 ng/mL may be a dominant risk factor for all-cause mortality after radiation therapy and androgen-deprivation therapy in men with localized unfavorable-risk prostate cancer. Study Details...
Validation of the Five-Tiered Gleason Grade Grouping System in Patients With Prostate Cancer
Scientists have been able to validate the recently proposed five-tiered system of Gleason grade grouping using population-based data. The study, led by Grace Lu-Yao, PhD, MPH, Associate Director for Population Science at the Sidney Kimmel Cancer Center at Thomas Jefferson University and Vice...
Prostate Cancer Treatment Rates Drop, Reflecting Change in Screening Recommendations
As some national guidelines now recommend against routine prostate cancer screening, the overall rate of men receiving treatment for the disease declined 42% between 2007 and 2012, a new study published by Borza et al in Health Affairs found. The decline reflects efforts to decrease overdiagnosis...
Vascular-Targeted Photodynamic Therapy Shows Promise in Low-Risk Prostate Cancer
In a European phase III trial reported in The Lancet Oncology, Azzouzi et al found that padeliporfin vascular-targeted photodynamic therapy was associated with a reduced rate of disease progression vs active surveillance in men with low-risk prostate cancer. Study Details In the open-label trial, ...
Does Androgen-Deprivation Therapy Increase the Risk for Dementia in Patients With Prostate Cancer?
In a UK population–based study reported in the Journal of Clinical Oncology, Khosrow-Khavar et al found no significant association between the use of androgen-deprivation therapy and the risk for dementia in patients with prostate cancer. The study involved a cohort of 30,903 men with newly...
Can Mindfulness-Based Cognitive Therapy Reduce Distress in Patients With Advanced Prostate Cancer?
Chambers et al found that a mindfulness-based cognitive therapy intervention did not improve measures of distress or anxiety vs minimally enhanced usual care among men with advanced prostate cancer, according to an Australian study reported in the Journal of Clinical Oncology. In the study, 189...
NAALADL2 Marker for Aggressive Prostate Cancer May Also Serve as a Drug Target
Researchers have discovered that a marker found on aggressive prostate cancer cells could also be used as a way to guide treatments to the cancer, according to new research presented by Luxton et al at the 2016 National Cancer Research Institute (NCRI) Cancer Conference in Liverpool, United...
Second Opinions From Urologists for Prostate Cancer: Do They Make a Difference?
A new analysis indicates that many men with prostate cancer obtain second opinions from urologists before starting treatment, but surprisingly, second opinions are not associated with changes in treatment choice or improvements in perceived quality of prostate cancer care. Published by...
Adulthood BMI Increases Leading to Obesity Seem to Be Linked to an Increased Risk of Fatal Prostate Cancer
In a study of data from men in the Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial reported in the Journal of the National Cancer Institute, Kelly et al found that body mass index (BMI) increases during adulthood that lead to obesity are associated with an increased risk of...
Potential Link Between Androgen-Deprivation Therapy for Prostate Cancer and Risk for Dementia
In a single-center analysis reported in JAMA Oncology, Nead et al found that the use of androgen-deprivation therapy for prostate cancer was associated with an increased risk for dementia. The study involved electronic medical record data from the Stanford University Health System from 1994 to...
Link Between Molecular Mechanisms in Prostate Cancer and Ewing Sarcoma Found
Medical researchers at Indiana University (IU) Bloomington have found evidence for a link between prostate cancer, which affects millions of men aged 50 and older, and Ewing's sarcoma, a rare form of cancer that affects children and young adults. The results of the study, reported by Kedage et al...
24-Gene Predictor of Response to Postoperative Radiotherapy in Prostate Cancer
In a matched retrospective analysis reported in The Lancet Oncology, Zhao et al identified and validated a 24-gene predictor of response to postoperative radiotherapy in prostate cancer. The analysis involved data from patients from five published U.S. studies (cohort, case-cohort, and...
Study Finds PFS Benefit, but No Overall Survival Benefit, for Ipilimumab in Metastatic Castration-Resistant Prostate Cancer
Ipilimumab (Yervoy) was associated with prolonged progression-free survival—but not overall survival—compared with placebo in men with asymptomatic or minimally symptomatic chemotherapy-naive metastatic castration-resistant prostate cancer without visceral metastases, according to a...
Long-Term Effects of Finasteride in Patients From the Prostate Cancer Prevention Trial
In a study reported in the Journal of the National Cancer Institute, Unger et al found that use of finasteride vs placebo in the Prostate Cancer Prevention Trial was associated with a modestly increased risk of depression and a modestly reduced risk of procedures for benign prostatic...
Christopher J. Sweeney, MBBS, on Prostate Cancer: CHAARTED Trial Follow-up
Christopher J. Sweeney, MBBS, of the Dana-Farber Cancer Institute, discusses how long-term study results showed no survival benefit in men with ogliometastatic prostate cancer. (Abstract 720PD)
Christopher J. Sweeney, MBBS, on Localized Prostate Cancer: Metastasis-Free Survival as a Surrogate for Overall Survival
Christopher J. Sweeney, MBBS, of the Dana-Farber Cancer Institute, discusses how this early clinical endpoint will accelerate the development of new therapies for localized intermediate and high-risk prostate cancer. (Abstract 717O)
Study Reports No Association Between Vasectomy and Prostate Cancer Incidence or Mortality
In an analysis of the Cancer Prevention Study II (CPS-II) study cohort reported in the Journal of Clinical Oncology, Jacobs et al found no significant association between vasectomy and overall prostate cancer incidence or mortality. A recent prospective study had shown an association of vasectomy...
ASTRO 2016: Extremely Hypofractionated Radiation Therapy Shows Promising Toxicity Results for Intermediate-Risk Prostate Cancer
For men with intermediate-risk prostate cancer, side effects at 2 years following radiation therapy were comparable for extremely hypofractionated treatment, which was delivered in 7 fractions across 2.5 weeks, and conventional treatment of 39 fractions across 8 weeks, according to research...
ASTRO 2016: SBRT Offers Patients With Prostate Cancer High Disease Control and Low Toxicity in Fewer Treatments
High-dose stereotactic body radiotherapy (SBRT) for men newly-diagnosed with low- or intermediate-risk prostate cancer results in shorter treatment times, low severe toxicity, and excellent cancer control rates, according to research presented by Meier et al at the 58th Annual Meeting of the...
Paul L. Nguyen, MD, on Prostate Cancer: High-Risk Disease, Brachytherapy, And Hormones
Paul L. Nguyen, MD, of the Dana-Farber Cancer Institute, summarizes a session he moderated, which included talks on local recurrence following brachytherapy, long-term PSA stability after the procedure, and androgen deprivation and high-dose radiotherapy. (Scientific Session 41)
ASTRO 2016: Three Novel Intrinsic Subtypes of Prostate Cancer Identified
In the largest study of its kind to date, researchers have identified and validated three distinct molecular subtypes of prostate cancer that correlate with distant metastasis-free survival and can assist in future research to determine how patients will respond to treatment, according to research...
ASTRO 2016: Intermediate-Risk Prostate Cancer May Be Well Controlled With Brachytherapy Alone
For men with intermediate-risk prostate cancer, radiation treatment with brachytherapy alone can result in similar cancer control with fewer long-term side effects, when compared to more aggressive treatment that combines brachytherapy with external beam therapy (EBT), according to research...
Patient-Reported Outcomes After Active Monitoring, Surgery, or Radiotherapy in PSA-Detected Localized Prostate Cancer
Patient-reported outcomes differed among men with localized prostate cancer detected by prostate-specific antigen (PSA) testing who were randomized to receive active monitoring, surgery, or radiotherapy in the UK ProtecT trial, according to a report by Donovan et al in The New England Journal of...
ASTRO 2016: Hypofractionated Radiation Therapy Can Reduce Treatment Time With Comparable Quality of Life for Patients With Prostate Cancer
For men with early stage, low-risk prostate cancer, treatment with hypofractionated radiation therapy offers comparable health-related quality of life outcomes in one-third less treatment time than conventional radiation therapy, according to research presented by Watkins Bruner et al at the 58th...
Bradley R. Prestidge, MD, on Prostate Cancer: Initial Findings of NRG Oncology/RTOG 0232
Bradley R. Prestidge, MD, of Bon Secours VA Health System, summarizes his plenary lecture on this phase III trial comparing combined external beam radiation and transperineal interstitial permanent brachytherapy with brachytherapy alone for selected patients with intermediate-risk prostate cancer....
Alan Pollack, MD, PhD, on Prostate Cancer: Postprostatectomy Radiotherapy
Alan Pollack, MD, PhD, of the University of Miami Health System, summarizes a session that included discussion of outcomes, dose response, oligometastatic disease, and gene predictor of response. (Presentations 228-235)
Anders Widmark, MD, PhD, on Intermediate-Risk Prostate Cancer: Results From the HYPO-RT-PC Trial
Anders Widmark, MD, PhD, of the Umea University Hospital Oncology, discusses the early toxicity results from the phase III Scandinavian study on extreme hypofractionation vs conventionally fractionated radiotherapy for intermediate-risk prostate cancer. (Abstract LBA-5)
Daniel Hamstra, MD, PhD, on Prostate Cancer: Decreasing Rectal Toxicity 126
Daniel A. Hamstra, MD, PhD, of Texas Oncology, discusses phase III findings on the use of an absorbable hydrogel spacer designed to decrease rectal toxicity and improve bowel quality of life for patients with prostate cancer. (Abstract LBA-6)
Blood Biomarkers in Abiraterone- or Enzalutamide-Resistant Prostate Cancer Tumor Cells
While searching for a noninvasive way to detect prostate cancer cells circulating in blood, Duke Cancer Institute researchers have identified some blood markers associated with tumor resistance to two common hormone therapies. In a study published by Gupta et al in Clinical Cancer Research, a team...
Decline in Circulating Tumor Cell Count and Treatment Outcome in Advanced Prostate Cancer
A drop in the number of cancer cells detected in a patient’s blood could be the best indicator yet as to whether treatment for prostate cancer is working. A new study, published by Lorente et al in European Urology, shows that a 30% decline in a patient’s numbers of circulating tumor...
Similar 10-Year Survival Reported With Active Monitoring, Surgery, or Radiotherapy for PSA-Detected Localized Prostate Cancer
In a UK trial (ProtecT) reported in The New England Journal of Medicine, Hamdy et al found no significant differences in prostate cancer–specific or overall mortality among men with localized prostate cancer detected by prostate-specific antigen (PSA) testing who underwent active monitoring,...
PSA Failure Seems to Be Linked to Poorer Survival in Men With Unfavorable-Risk Prostate Cancer and No/Minimal Comorbidity
In an analysis of a clinical trial population reported in the Journal of Clinical Oncology, Giacalone et al found that prostate-specific antigen (PSA) failure was associated with an increased risk of mortality among men with unfavorable-risk prostate cancer who had no or minimal comorbidity burden. ...
