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EMMANUEL S. ANTONARAKIS, MD, Associate Professor of Oncology, Johns Hopkins University, Baltimore, commented on the state of current knowledge about poly (ADP-ribose) polymerase (PARP) inhibitors in prostate cancer. “PARP inhibitors are definitely making inroads in the management of patients with...
MULTIPLE POLY (ADP-ribose) polymerase (PARP) inhibitors are under study in metastatic prostate cancer and no clear winner has emerged yet. Some studies suggest that the best use of PARP inhibitors may be in patients whose cancers harbor DNA-repair defects and BRCA1/2 mutations, but other data...
As reported in the Journal of Clinical Oncology by Rosenthal et al, the phase III NRG Oncology RTOG 0521 trial showed that the addition of docetaxel to androgen suppression and radiotherapy improved overall and disease-free survival as well as the distant metastasis rate in patients with high-risk...
Researchers have shown that selectively destroying cancerous prostate tissue may be as effective as complete prostate removal or radiation therapy, while preserving more sexual and urinary function than these other treatments. The study was published by Wasler et al in the Journal of Vascular and...
James L. Mohler, MD, of the Roswell Park Comprehensive Cancer Center, discusses updated recommendations in prostate cancer: more specificity for family history and genomic sequencing, as well as the evolving uses of androgen-deprivation therapy.
In the PROPHECY study, reported in the Journal of Clinical Oncology, Armstrong et al found that positive findings on 2 assays for circulating tumor cell (CTC) androgen receptor splice variant 7 (AR-V7) were associated with poorer outcomes for abiraterone and enzalutamide therapy in men with...
In a French phase III trial reported in JAMA Oncology, Stéphane Oudard, MD, PhD, of Hôpital Européen Georges Pompidou, and colleagues found that the addition of docetaxel to androgen-deprivation therapy (ADT) did not improve prostate-specific antigen (PSA) progression-free survival in men with...
As reported by Bertrand Tombal, MD, of the Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, and colleagues in The Lancet Oncology, treatment with enzalutamide was associated with clinically meaningful delays in pain progression, symptom worsening, and deterioration in...
Researchers have shown that testosterone replacement may slow the recurrence of prostate cancer in low-risk patients. Findings from the study were presented by Towe et al at the European Association of Urology (EAU) 2019 Congress (Abstract 646). Practitioners have long regarded testosterone as a...
In a phase III trial reported in the Journal of Clinical Oncology, Gulley et al found that PROSTVAC, a viral vector-based immunotherapy, did not improve overall survival or 6-month event-free survival vs placebo in patients with asymptomatic or minimally symptomatic metastatic castration-resistant...
In a phase II trial reported in the Journal of Clinical Oncology, McKay et al found a trend toward improved pathologic response or minimal residual disease with the addition of neoadjuvant abiraterone and prednisone to enzalutamide and leuprolide prior to radical prostatectomy in patients with...
In a study reported in JAMA Oncology by Nicolosi et al, it was found that 17% of men with prostate cancer had likely deleterious germline genetic variants, and that many of these men would not have been considered candidates for genetic testing. Study Details The study involved data from 3,607...
Darolutamide—an investigational androgen receptor inhibitor—significantly improved metastasis-free survival in men with high-risk nonmetastatic castration-resistant prostate cancer vs placebo in the large phase III ARAMIS trial.1 Men treated with darolutamide had a median metastasis-free survival...
In a prospective, single-center, single-arm phase II trial reported at the 2019 Genitourinary Cancers Symposium, a novel approach using a tumor-specific radioligand therapy that binds to prostate-specific membrane antigen (PSMA) (lutetium-177 PSMA-617 -[LuPSMA]) achieved responses in a majority of...
Patients with advanced prostate cancer who had preexisting cardiovascular disease had a higher risk of mortality in the 6 months after starting abiraterone acetate treatment compared with those who had no preexisting cardiovascular disease, according to data presented by Lu-Yao et al at a presscast ...
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...