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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 implicated in prostate cancer (Abstract 131).
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...
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 ...
The field of prostate cancer is being energized by discoveries in genetics, novel imaging techniques, and the potential of checkpoint inhibitors in the treatment of prostate cancer. Not all of these advances are currently clinically actionable, but all have the potential to change clinical...
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...
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 ...
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 ...
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...
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. Felix Y. Feng, MD, of the University of California, San Francisco, is the corresponding author of The Lancet...
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...
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...
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, ...
The diagnosis and treatment of prostate cancer have long been a source of controversy among the oncology community, the political sector, and patient advocacy groups. Most notably, the decision to biopsy a man’s prostate gland rests largely on his prostate-specific antigen (PSA) test numbers, the...
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...
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...
In the Prostate Cancer Prevention Trial finasteride was found to reduce the risk of low-grade prostate cancer but to have no effect on overall survival. Results of the trial, in which 18,880 men were randomized to receive finasteride or placebo for 7 years, were reported in 2003. In a recent study...
The 2016 European Society for Medical Oncology (ESMO) Congress revealed many important positive findings from key trials in a number of tumor types, but many highly anticipated phase III trials in advanced disease failed to meet their primary endpoints. The ASCO Post has summarized several of these ...
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...
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...
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...
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...
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...
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...
Robot-assisted laparoscopic prostatectomy and open radical retropubic prostatectomy yielded similar domain-specific quality-of-life or pathologic outcomes at 12 weeks in men with newly diagnosed, clinically localized prostate cancer, according to the results of a randomized phase III trial reported ...
Members of the oncology community have long complained that prostate cancer lags behind breast cancer regarding biomarkers for prognosis and treatment, but the good news is that this gap is narrowing. In the largest study of its kind to date, presented at the 58th Annual Meeting of the American...
Giving patients larger fractions of radiation over shorter periods (ie, hypofractionation) is gaining ground in several types of cancers. This approach is attractive for patients’ convenience, shortening treatment and travel times, and also for resource utilization. Several studies have shown that ...
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...
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, 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, 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)
The ProtecT trial showing similar 10-year survival with active monitoring, surgery, or radiotherapy for prostate-specific antigen (PSA)-detected localized prostate cancer but a greater risk of disease progression/metastasis with monitoring was recently reported by Hamdy and colleagues and is...
The ProtecT study findings1 are provocative. Despite having a control arm of active monitoring with serial prostate-specific antigen (PSA) testing, as compared with watchful waiting in the prior randomized trials (ie, SPCG-42 and PIVOT3), and also enrolling men with more favorable-risk disease...
In the UK ProtecT trial reported in The New England Journal of Medicine, Freddie C. Hamdy, FRCS, FMedSci, of the University of Oxford, and colleagues found no significant differences in prostate cancer–specific or overall mortality among men with clinically localized prostate cancer detected by...
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...
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...
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, 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)
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...
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 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...
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, 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. (Plenary Lecture 1, Presentation 7)
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, 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 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)
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...
In a new study, men who underwent vasectomy did not have an increased risk of prostate cancer, nor were they more likely to die from prostate cancer than men who did not receive this procedure. According to the researchers, this is the largest prospective study of vasectomy and fatal prostate...
A collaborative Cleveland Clinic–Mayo Clinic team of researchers has shown for the first time that patients with advanced prostate cancer are more likely to die earlier of their disease if they carry a specific testosterone-related genetic abnormality. The findings, published by Hearn et al in The...
The number of docetaxel cycles completed was associated with improved overall survival among men with metastatic castration-resistant prostate cancer receiving docetaxel, prednisone, and lenalidomide (Revlimid) or docetaxel/prednisone, in the phase III Mainsail trial. de Morrée et al reported this ...
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...