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In the phase III ERA 223 trial reported in The Lancet Oncology, Smith et al found that the addition of radium-223 to abiraterone acetate and prednisone or prednisolone did not improve symptomatic skeletal event-free survival and was associated with increased risk of fracture in patients with...
In a French phase III trial reported in JAMA Oncology, Oudard et al found that the addition of docetaxel to androgen-deprivation therapy (ADT) did not improve prostate-specific antigen (PSA) progression-free survival in men with high-risk prostate cancer with rising PSA after primary local therapy. ...
As reported by Tombal et al in The Lancet Oncology, treatment with enzalutamide was associated with clinically meaningful delays in pain progression, symptom worsening, and deterioration in functional status vs placebo in the phase III PROSPER trial in nonmetastatic, castration-resistant prostate...
In a retrospective analysis reported in the Journal of Oncology Practice, Parikh et al found that more than one-quarter of hospitalizations in Medicare patients with prostate cancer were potentially avoidable. Study Details The study involved 99 evaluable patients in the Mount Sinai Health System ...
Sumit K. Subudhi, MD, PhD, of The University of Texas MD Anderson Cancer Center, discusses the initial results from a phase II study of nivolumab plus ipilimumab in the treatment of metastatic castration-resistant prostate cancer (Abstract 142).
Howard I. Scher, MD, of Memorial Sloan Kettering Cancer Center, discusses circulating tumor cell number as a transitional surrogate endpoint for survival in phase II trials on metastatic castration-resistant prostate cancer (Abstract 143).
Silke Gillessen, MD, of Cantonal Hospital St. Gallen, discusses data from a phase III study on the incidence of hypocalcemia in patients with castration-resistant prostate cancer treated with denosumab. The trial was designed to assess prevention of symptomatic skeletal events with denosumab administered every 4 weeks vs every 12 weeks (Abstract 139).
Karim Fizazi, MD, PhD, of the University of Paris-Sud and Gustave Roussy, discusses study findings on the efficacy and safety of darolutamide in men with nonmetastatic castration-resistant prostate cancer (Abstract 140).
Nicholas J. van As, MD, of The Royal Marsden NHS Foundation Trust, discusses an analysis of acute toxicity in the PACE-B study, which compared stereotactic body radiotherapy with conventionally fractionated or moderately hypofractionated external-beam radiotherapy for localized prostate cancer (Abstract 1).
Karim Fizazi, MD, PhD, of the University of Paris-Sud and Gustave Roussy, discusses final phase III findings on men with newly diagnosed, high-risk, metastatic, castration-naive prostate cancer who were treated with abiraterone acetate plus prednisone added to androgen-deprivation therapy (Abstract 141).
In the phase III ARAMIS trial reported by Fizazi et al at the 2019 Genitourinary Cancers Symposium (Abstract 140) and simultaneously published in The New England Journal of Medicine, researchers found that the androgen receptor antagonist darolutamide significantly prolonged metastasis-free...
Some patients with metastatic prostate cancer respond to a combination of immune checkpoint inhibitors after treatment with hormonal therapy and chemotherapy has not been successful in treating their disease, according to early results from the phase II CheckMate 650...
A large, retrospective study analyzing 5 years of data from the Veterans Health Administration (VHA) found that African American men with chemotherapy-naive, metastatic, castration-resistant prostate cancer who were treated with abiraterone acetate or enzalutamide lived 20% longer compared with...
A single-arm, phase II trial in men with prostate-specific membrane antigen (PSMA)-positive, metastatic, castration-resistant prostate cancer that progressed despite standard therapies found that a majority of men treated with a novel, targeted radiation therapy called lutetium-177 PSMA-617...
In a population-based study reported in The Lancet Oncology, Downing et al found little difference in health-related quality of life (HRQOL) between men with advanced vs localized prostate cancer. Sexual function problems were common among all patients—and often not addressed—and use of ...
In a letter to the editor of The New England Journal of Medicine, Goodman et al reported a long-term follow-up of the Prostate Cancer Prevention Trial indicating that finasteride treatment was not associated with an increased risk of death from prostate cancer. Study Details As previously...
Unlike healthy tissues, tumors thrive in low-oxygen environments, often acquiring the ability to resist treatment and spread to other sites in the body. Despite being a well-known cause of therapy resistance and metastasis, the impact of hypoxia on tumor cells is poorly understood. Researchers have ...
A subset of patients with aggressive prostate cancer are carriers of germline BRCA2 mutations, which are also linked to hereditary breast cancer, ovarian cancer, and pancreatic cancer. Study findings also showed family members of patients with prostate cancer who carry BRCA2 and DNA-repair...
In an analysis reported in the Journal of Clinical Oncology, Halabi et al found that overall survival was improved for black men vs white men receiving regimens containing docetaxel and prednisone for metastatic castration-resistant prostate cancer. As noted by the investigators, several studies...
In a study reported in JAMA Oncology, Abida et al found that approximately 3% of patients with prostate cancer had microsatellite instability–high (MSI-H)/mismatch repair–deficient (dMMR) tumors and that some of these patients exhibited durable responses to treatment with immune...
Black men diagnosed with prostate cancer classified as low risk may actually have a more aggressive form of the disease that is more likely to be fatal than in nonblack men placed in the same prognostic category, according to results from a new study published as a research letter by Mahal et al in ...
As reported in the Journal of Clinical Oncology by Dignam et al, analysis of outcomes in the phase III NRG/RTOG 9202 trial indicates that the time interval to biochemical failure (IBF) could serve as a surrogate endpoint for clinical outcomes in patients receiving radiotherapy plus long-term...
As reported by Denham et al in The Lancet Oncology, 10-year results of the phase III TROG 03.04 RADAR trial have shown that 18 months of androgen suppression plus radiotherapy is more effective than 6 months of androgen suppression plus radiotherapy in locally advanced prostate cancer, but no...
Although most major cancer organizations agree on the guidelines for prostate cancer screening, there is still uneven application of the test, such as in the older patient population, resulting in overdiagnosis and waste in an already fiscally challenged health-care system. Researchers from the...
ONE OF the pressing issues in metastatic castration-resistant prostate cancer is the development of resistance to therapies directed at the androgen receptor (AR), such as enzalutamide (Xtandi) and abiraterone acetate (Zytiga). Research is ongoing to identify mechanisms of resistance in the hope of ...
FORMAL DISCUSSANT Joaquin Mateo, MD, PhD, of the Prostate Cancer Translational Research Group, Vall d’Hebron Institute of Oncology, Barcelona, said that the TRITON2 findings were encouraging, although still preliminary. “We should interpret these results with caution, because this interim analysis ...
THE SEARCH for biomarkers in prostate cancer has proved frustrating, partly due to the complexity of the disease and its heterogeneity. A preliminary analysis of a phase II (TRITON2) study suggests that rucaparib (Rubraca), a poly (ADP-ribose) polymerase (PARP) inhibitor, may be active in men with...
In a cohort study reported in JAMA Oncology, Tilki et al found that patients with Gleason score 9–10 prostate cancer treated with multimodality therapy known as MaxRP (radical prostatectomy [RP] plus adjuvant external-beam radiotherapy [EBRT] with or without androgen-deprivation therapy...
YouTube videos on prostate cancer often offer misleading or biased medical information that poses potential health risks to patients, an analysis of the social media platform published by Loeb et al in European Urology showed. For the latest analysis, researchers, which included social...
New research by Lichtensztajn et al in JNCCN—Journal of the National Comprehensive Cancer Network examined disparities in care for Latino men with prostate cancer. A team of researchers from UCSF Helen Diller Family Comprehensive Cancer Center, Stanford Cancer Institute, and...
Three prominent medical organizations have issued a new clinical guideline for physicians treating men with early-stage prostate cancer using external-beam radiation therapy (EBRT). Developed by a panel of experts from the American Society for Radiation Oncology (ASTRO), ASCO, and the American...
The combination of radium-223 plus AAP (abiraterone acetate [Zytiga] and prednisone) was not superior to placebo plus AAP in the phase III ERA 223 trial, which enrolled men with asymptomatic bone-predominant metastatic castration-resistant prostate cancer.1 Patients treated with the combination had ...
Androgen-deprivation therapy (ADT) use was associated with a higher risk of heart failure in a study of patients with prostate cancer, according to findings published by Kao et al in The Journal of Clinical Pharmacology. Study Methods, Findings Study authors used data from the Taiwan...
For patients with prostate cancer who have persistent or rising prostate-specific antigen (PSA) levels after radical prostatectomy, the addition of short-term androgen-deprivation therapy and radiotherapy to the pelvic lymph nodes demonstrated increased rates of freedom from disease progression,...
Men who have been newly diagnosed with prostate cancer say they would trade some improvement in their odds of survival for improvements in side effects and quality of life, according to research presented by Ahmed et al at the 2018 National Cancer Research Institute (NCRI) Cancer Conference...
FORMAL DISCUSSANT Robert G. Bristow, MD, PhD, of the Manchester Cancer Research Centre, Manchester, United Kingdom, called this trial “an exemplar.” “Radiation to the prostate should be considered standard of care in the setting of hormone-sensitive low-metastatic burden. The treatment is well...
MEN WITH newly diagnosed metastatic prostate cancer do not typically receive treatment to the primary tumor with radiation or surgery. A new analysis of the STAMPEDE trial found that radiation administered to the prostate can improve overall survival in men with newly diagnosed metastatic prostate...
In a study reported in JAMA Oncology, Howard I. Scher, MD, of the Genitourinary Oncology Service, Memorial Sloan Kettering Cancer, and colleagues found that the presence of nuclear-localized androgen receptor splice variant 7 (AR-V7) protein in circulating tumor cells may predict better survival...
In an Australian phase III trial reported in The Lancet Oncology, Suzanne K. Chambers, PhD, of the Menzies Health Institute Queensland, Griffith University, Gold Coast, and colleagues found similar functional outcomes at 2 years with robot-assisted laparoscopic prostatectomy and open radical...
In a study published by Mark A. Preston, MD, MPH, and colleagues in European Urology, researchers demonstrated that a baseline prostate-specific antigen (PSA) level obtained from black men between 40 and 60 years old may predict the future development of prostate cancer for years after testing....
Three prominent medical societies have issued a new clinical guideline for physicians treating men with early-stage prostate cancer using external-beam radiation therapy (EBRT). Adoption of the guideline could make treatment shorter and more convenient for many patients with prostate cancer....
The first report of a large international clinical trial shows that, for men who show signs of prostate cancer after surgical removal of their prostates, extending radiation therapy to the pelvic lymph nodes combined with adding short-term androgen-deprivation therapy (ADT) to standard treatment...
In long-term follow-up of the phase III NRG/RTOG 9413 study reported in The Lancet Oncology by Roach et al, neoadjuvant hormonal therapy (NHT) plus whole-pelvic radiotherapy (WPRT) and prostate-only radiotherapy (PORT) plus adjuvant hormonal therapy (AHT) were associated with the highest rates of...
Howard M. Sandler, MD, of Cedars-Sinai Medical Center, summarizes a session he moderated that included discussion of an ASTRO, ASCO, and AUA guideline; indications and dose fractionation; treatment volumes; and the use of IGRT and IMRT (Panel 03).
Daniel E. Spratt, MD, of the University of Michigan, discusses a large-scale gene-expression analysis and meta-analysis of RTOG trials on androgen receptor activity and radiotherapeutic sensitivity in African American men with prostate cancer (Abstract 4).
Howard M. Sandler, MD, of Cedars-Sinai Medical Center, discusses a session on data from several long-term studies on localized disease, including optimal sequencing of radiation and androgen-deprivation therapy; the efficacy and toxicity of SBRT; conventional vs hypofractionated radiation therapy; and dose escalation (Scientific Symposium 08).
Alan Pollack, MD, of the University of Miami, discusses study findings on short-term androgen-deprivation therapy with or without pelvic lymph node treatment added to prostate bed–only salvage radiotherapy (Abstract LBA5).
A new analysis of genetic data from a large prospective registry and clinical data from several randomized trials indicates that African American patients may have comparatively higher cure rates when treated with radiation therapy than Caucasian patients. The study, which is the first report...
Nicholas D. James, PhD, MBBS, of University Hospitals Birmingham NHS Trust, discusses study findings on treating metastatic castration-sensitive prostate cancer, including results on radiotherapy and abiraterone (Abstract LBA5_PR).
Radiotherapy to the prostate improved overall survival in men newly diagnosed with metastatic prostate cancer who have a low metastatic disease burden, but not in those with higher burden of disease, according to results from a preplanned analysis of a large comparison study reported by Parker et...