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prostate cancer

Hypofractionated Radiotherapy Not Inferior to Conventional Radiotherapy in Low-Risk Prostate Cancer

In a phase III noninferiority trial (NRG Oncology RTOG 0415) reported by Lee et al in the Journal of Clinical Oncology, W. Robert Lee, MD, MS, Med, of Duke University Medical Center, and colleagues found that hypofractionated radiotherapy was not inferior to conventional hypofractionated...

prostate cancer

Androgen-Deprivation Therapy May Increase Mortality in African American Men With Favorable-Risk Prostate Cancer

In a retrospective study analyzing patients' medical records, researchers at Brigham and Women's Hospital (BWH) found that race significantly affected longevity by increasing the likelihood of death after receiving androgen-deprivation therapy. These findings were published by Kovtun et al in...

Prostate Cancer

Hypofractionation May Be Poised to Become New Standard of Care for Prostate Cancer

There has been an ongoing debate about which type of radiation therapy is preferable in the treatment of localized prostate cancer: hypofractionation (larger fractions given over 4–5 weeks) or conventional radiotherapy (given over 8–9 weeks). A new study presented at the 2016 ASCO Annual Meeting...

prostate cancer

Sociodemographic and Clinical Predictors of Switching to Active Treatment From Observational Management in Low-Risk Prostate Cancer

Although active surveillance for patients with low-risk prostate cancer has become an increasingly acceptable strategy for disease management, many men opt for definitive therapies such as radical prostatectomy or radiation therapy. A new study of more than 2,200 patients with low-risk prostate...

prostate cancer

Patients With Low-Risk Prostate Cancer on Active Surveillance Experience Good Quality of Life

Active surveillance has become an increasingly important alternative to surgery, chemotherapy, or radiation treatment for men diagnosed with low-risk prostate cancer. However, what is the impact of active surveillance on health-related quality of life in patients selected or opting for this...

solid tumors
prostate cancer

No Survival Benefit for Cabozantinib Reported in Previously Treated Metastatic Castration-Resistant Prostate Cancer

Smith et al found no improvement in overall survival with cabozantinib (Cometriq) vs prednisone in patients with previously treated metastatic castration-resistant prostate cancer, in the phase III COMET-1 trial reported in the Journal of Clinical Oncology. Cabozantinib, which inhibits MET, VEGF...

prostate cancer

Early Evidence of Anti–PD-1 Activity in Enzalutamide-Resistant Prostate Cancer

Restoring tumor-specific immunity is a treatment strategy that works well in melanoma and lung cancer patients. Now a new study out of the Oregon Health & Science University (OSHU) Knight Cancer Institute is reviving hope that the approach also may help men with life-threatening prostate...

prostate cancer

PET/MRI: A One-Stop Imaging Test to Detect Prostate Cancer?

A University of Michigan study published by Piert et al in The Journal of Nuclear Medicine reported that the addition of molecular imaging based on F-18-choline positron-emission tomography (PET) improves the identification of significant prostate cancer over multiparametric prostate magnetic...

prostate cancer

Study Finds Incidence of Mutations in DNA-Repair Genes Significantly Higher in Men With Metastatic Prostate Cancer

The incidence of mutations in DNA-repair genes was significantly higher among men with metastatic prostate cancer than among men with localized disease (11.8% vs 4.6%), according to a study by Pritchard et al reported in The New England Journal of Medicine. In addition, the frequency ...

prostate cancer

Mixed Results With Hypofractionated vs Conventional Radiotherapy for Localized Prostate Cancer

Investigators of two European phase III trials have reached different conclusions on whether hypofractionated radiotherapy should replace conventional radiotherapy as a new standard of treatment in localized prostate cancer. The CHHiP trial findings favoring hypofractionation were reported by David ...

Prostate Cancer

Novel Approach to PET/CT Imaging May Predict Location and Extent of Primary Prostate Cancer

With surgical removal at the front line of defense against prostate cancer, oncologists are considering prostate-specific molecular imaging at the point of initial biopsy and preoperative planning to root out the full extent of disease, researchers showed at the 2016 Annual Meeting of the Society...

prostate cancer

Improved Survival Reported With Prostate Radiation Therapy Plus Androgen-Deprivation Therapy in Metastatic Prostate Cancer

The addition of prostate external-beam radiation therapy to androgen-deprivation therapy was associated with prolonged overall survival in men with newly diagnosed metastatic prostate cancer, according to a National Cancer Database analysis reported by Rusthoven et al in the Journal of Clinical...

prostate cancer

Tasquinimod Improves Radiographic PFS but Not OS in Metastatic Castration-Resistant Prostate Cancer

In a phase III trial reported in the Journal of Clinical Oncology, Sternberg et al found that tasquinimod, an oral therapy targeting components of the tumor microenvironment, increased radiographic progression-free survival but not overall survival vs placebo in men with chemotherapy-naive...

prostate cancer

SNMMI 2016: PET/CT Imaging of Prostate Cancer With Specific Agent May Be an Accurate Prebiopsy/Preoperative Guide

With surgical removal at the frontline of defense against prostate cancer, oncologists are considering prostate-specific molecular imaging at the point of initial biopsy and preoperative planning to root out the full extent of disease, researchers showed at the 2016 Annual Meeting of the Society of ...

Prostate Cancer

FDA Approves New Diagnostic Imaging Agent to Detect Recurrent Prostate Cancer

On May 27, the U.S. Food and Drug Administration (FDA) approved fluciclovine F-18 (Axumin), a radioactive diagnostic agent for injection. Fluciclovine F-18 is indicated for positron-emission tomography (PET) imaging in men with suspected prostate cancer recurrence based on elevated...

Prostate Cancer

Increased Survival and Toxicity With Docetaxel, No Benefit of Zoledronic Acid, When Added to First-Line Hormone Therapy in Prostate Cancer

As reported in The Lancet by Nicholas D. James, BSc, MBBS, PhD, of the University of Warwick, and colleagues, survival results of the STAMPEDE trial, which used a multiarm, multistage seamless phase II/III design, provide little evidence of benefit of zoledronic acid and showed increased survival ...

Prostate Cancer

Prostate Cancer: Opinions Vary on Gleason Scores and Surgery

Diagnosis and treatment of prostate cancer have been the source of heated debate for decades, most of which has centered on the clinical value of the prostate-specific antigen (PSA) test. In 2012, the U.S Preventive Services Task Force (USPSTF) gave the PSA test a D grade, which discourages many...

prostate cancer

Toni K. Choueiri, MD, and Paul L. Nguyen, MD, on Prostate Cancer: Expert Perspectives on Four Studies

Toni K. Choueiri, MD, and Paul L. Nguyen, MD, both of the Dana-Farber Cancer Institute, discuss four key studies on high- and intermediate-risk prostate cancer, as well as localized disease (Abstracts 5001, 5003, 5023, and 5021).

Prostate Cancer

Chemotherapy After Radical Prostatectomy May Benefit African Americans and High-Risk Patients

A new U.S. Department of Veterans Affairs (VA) study suggests that African American men and men with a higher tumor stage may benefit from adjuvant chemotherapy following radical prostatectomy.1 According to prespecified analysis of these two “high–risk” subgroups, patients with ≥ T3b disease had a ...

prostate cancer

Celestia S. Higano, MD, and Chris Parker, MD, on the PROMIS Study of Elevated PSA

Celestia S. Higano, MD, of the University of Washington, and Chris Parker, MD, of the Royal Marsden Hospital, discuss findings from this confirmatory study evaluating the accuracy of MRI and TRUS biopsy in men with an elevated PSA (Abstract 5000).

prostate cancer

A. Oliver Sartor, MD, and Celestia S. Higano, MD, on Findings of the FIRSTANA Trial in Prostate Cancer

A. Oliver Sartor, MD, of Tulane University, and Celestia S. Higano, MD, of the University of Washington, discuss findings from this phase III study on cabazitaxel vs docetaxel in chemotherapy-naive patients with metastatic castration-resistant prostate cancer (Abstract 5006).

prostate cancer

FDA Approves New Diagnostic Imaging Agent to Detect Recurrent Prostate Cancer

On May 27, the U.S. Food and Drug Administration (FDA) approved fluciclovine F-18 (Axumin), a radioactive diagnostic agent for injection. Fluciclovine F-18 is indicated for positron-emission tomography (PET) imaging in men with suspected prostate cancer recurrence based on elevated...

Prostate Cancer
Geriatric Oncology

Significant Increased Risk of Noncancer Hospitalization Following Diagnosis of Prostate Cancer in the Elderly

Elderly men had a significant increase in the risk of noncancer hospitalizations following the diagnosis of prostate cancer, according to a population-based retrospective cohort study conducted by Amit D. Raval, PhD, and colleagues at West Virginia University, Morgantown. Results were published in...

Breast Cancer
Prostate Cancer
Hematologic Malignancies

Highlights From the 2016 AACR Annual Meeting

This year’s Annual Meeting of the American Association for Cancer Research (AACR) featured outstanding research in the field of cancer, as well as an inspiring talk by Vice President Joe Biden (see the May 10 issue of The ASCO Post). Here are some summaries of studies that warrant attention; they...

Gynecologic Cancers
Multiple Myeloma
Skin Cancer
Pancreatic Cancer
Lung Cancer
Prostate Cancer
Breast Cancer
Survivorship

NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®): 2016 Guidelines

In 1996, the National Comprehensive Cancer Network (NCCN®) published its first set of Clinical Practice Guidelines in Oncology® (NCCN Guidelines®), covering eight tumor types. The NCCN Guidelines® are now published for more than 60 tumor types and topics. Some of the key updates for 2016 were...

prostate cancer

French Trial Shows Benefit of Adding Short-Term Hormone Therapy to Salvage Radiotherapy for Rising PSA After Prostatectomy

In the phase III GETUG-AFU 16 trial reported in The Lancet Oncology, Carrie et al found that adding short-term androgen suppression therapy to salvage radiotherapy was associated with improved biochemical or clinical progression-free survival among patients with prostate cancer who exhibited rising ...

prostate cancer

AUA 2016: IsoPSA, a Novel, Structure-Based Biomarker Test for Prostate Cancer, Explored in a Multicenter Prospective Trial

A promising new test is detecting prostate cancer more precisely than current tests by identifying molecular changes in the prostate-specific antigen (PSA) protein, according to Cleveland Clinic research presented at the 111th Annual Scientific Meeting of the American Urological Association (AUA)...

prostate cancer

AUA 2016: Relationship Between Testosterone Therapy and Prostate Cancer Explored

Men with low levels of the male sex hormone testosterone need not fear that testosterone replacement therapy will increase their risk of prostate cancer. This is the finding of an analysis of more than a quarter-million medical records of mostly white men in Sweden, research led by investigators at ...

prostate cancer

AUA 2016: Cell-Cycle Progression Score Provides Significant Prognostic Information in Patients With Gleason Score < 7

Myriad Genetics announced results from a study of the prognostic information provided by its Prolaris test in patients with prostate cancer and a Gleason score < 7 at the 111th Annual Scientific Meeting of the American Urological Association (AUA) (Abstract MP02-20). Prolaris is a novel 46-gene ...

prostate cancer

AUA 2016: BRCA Gene Mutations Associated With Increased Prostate Cancer Risk

Though predominantly known for their increased associations with breast cancer risk, germline mutations in the BRCA1 and BRCA2 genes are also associated with an increased susceptibility to other diseases, including prostate cancer. New data being presented during the 111th Annual Scientific Meeting ...

prostate cancer

AUA 2016: Adjuvant Chemotherapy After Radical Prostatectomy May Benefit Men at High Risk for Relapse

Not all men with prostate cancer benefit from adjuvant chemotherapy after radical prostatectomy; however, African American men and men with a higher tumor stage may, according to a new U.S. Department of Veterans Affairs (VA) study (Abstract PI LBA 06) featured at the 111th Annual Scientific...

Prostate Cancer

Moving Forward in Castration-Resistant Prostate Cancer: The TERRAIN and STRIVE Studies

It was over 2 decades ago that my colleagues and I reported in The New England Journal of Medicine that a first-generation oral antiandrogen, flutamide, when added to a luteinizing hormone–releasing hormone (LHRH) agonist, improved survival by nearly 6 months compared to an LHRH agonist alone in...

Prostate Cancer

Enzalutamide Produces Large Progression-Free Survival Benefit vs Bicalutamide in Two Trials in Castration-Resistant Prostate Cancer

In the randomized phase II TERRAIN trial reported in The Lancet Oncology, Neal D. Shore, MD, of Carolina Urologic Research Center, Myrtle Beach, and colleagues found that use of the androgen receptor inhibitor enzalutamide (Xtandi) more than doubled median progression-free survival vs bicalutamide...

prostate cancer

Stereotactic Body Radiation Therapy May Offer a Higher Cure Rate in Prostate Cancer Than More Traditional Approaches

A 5-year study published by Hannan et al in the European Journal of Cancer showed that stereotactic body radiation therapy (SBRT) to treat prostate cancer offers a higher cure rate than more traditional approaches, according to researchers at UT Southwestern Medical Center Harold C. Simmons...

Prostate Cancer

Severe Adverse Event Clusters Identified Using NCI Common Terminology Criteria

Using the National Cancer Institute’s Common Terminology Criteria for Adverse Events (CTCAE), researchers from Columbia University, New York, and Fred Hutchinson Cancer Research Center, Seattle, identified six severe adverse event clusters in patients with advanced prostate cancer. The clusters...

Prostate Cancer

Choline Kinase Alpha as Androgen Receptor Chaperone and Prostate Cancer Target

As reported in the Journal of the National Cancer Institute, Asim and colleagues found that choline kinase alpha (CHKA) acts as a chaperone for the androgen receptor (AR) and may serve as a therapeutic target in prostate cancer. CHKA expression was found to be androgen regulated in cell lines,...

Prostate Cancer

Active Surveillance Has Become Standard Care for Men With Low-Risk Localized Prostate Cancer

Active surveillance has been increasingly adopted as a standard approach for men with Gleason score ≤ 6 localized prostate cancer, with major guidelines and consensus statements encouraging this approach,1 including a recently published guideline from Cancer Care Ontario (CCO),2 and endorsement of...

Prostate Cancer

ASCO Endorses Cancer Care Ontario Guideline on Active Surveillance for Management of Localized Prostate Cancer

As reported by Ronald C. Chen, MD, MPH, of the University of North Carolina at Chapel Hill, and colleagues in the Journal of Clinical Oncology, ASCO has endorsed, with qualifications, the 2015 Cancer Care Ontario (CCO) guideline on active surveillance for management of localized prostate cancer....

prostate cancer

Hypofractionated Radiotherapy Not Inferior to Conventional Radiotherapy in Low-Risk Prostate Cancer

Hypofractionated radiotherapy was not inferior to conventional radiotherapy in terms of disease-free survival among men with low-risk prostate cancer, according to the results of the phase III NRG Oncology RTOG 0415 trial reported in the Journal of Clinical Oncology by Lee et al. However, it was...

prostate cancer

Preclinical Studies Show Many Androgen-Deprivation Therapies May Suppress Adaptive Immune Responses

Prostate cancer patients and their doctors may want to think twice about the best timing for chemotherapy or radiation therapy in conjunction with a common nonsurgical treatment, based on international research findings led by UT Southwestern Medical Center investigators. Researchers using mouse...

prostate cancer

Significantly Increased Risk of Noncancer Hospitalizations Following Diagnosis of Prostate Cancer in the Elderly

Elderly men had a significant increase in the risk of noncancer hospitalizations following the diagnosis of prostate cancer, according to a population-based retrospective cohort study conducted by Amit D. Raval, PhD, and colleagues at West Virginia University, Morgantown. Results were published in...

prostate cancer

Adding 6 Months of Androgen Suppression to Radiotherapy Improves Disease-Free Survival in Intermediate- and High-Risk Prostate Cancer

In the phase III EORTC 22991 trial reported in the Journal of Clinical Oncology, Bolla et al found that the addition of 6 months of androgen suppression to radiotherapy improved biochemical and clinical disease-free survival in patients with intermediate- and high-risk prostate cancer. Study...

Prostate Cancer

Decreased PSA Screening and Decreased Diagnosis of Early-Stage Prostate Cancer

Recent data indicate that the rate of prostate-specific antigen (PSA) screening and the rate of diagnosis of early-stage prostate cancer have decreased since a 2012 U.S. Preventive Services Task Force (USPSTF) statement (released in October 2011) gave a grade D recommendation against PSA...

Prostate Cancer

Throwing Out the Baby With the Bathwater: A Critical Appraisal of the USPSTF Recommendation Against Screening for Prostate Cancer

In 2012, the U.S. Preventive Services Task Force (USPSTF) issued a recommendation against routine screening for prostate cancer.1,2 The grade D recommendation was considered controversial at the time, and remains so now, because many stakeholders have weighed the same body of evidence and come to...

prostate cancer

Widely Cited Prostate-Specific Antigen Screening Publications Influence Biopsy Rates and Associated Complications

While absolute rates of biopsy and postbiopsy complications have decreased following several benchmark prostate-specific antigen (PSA) screening publications, the relative risk for each patient continues to increase, according to a new study by Mayo Clinic researchers. The study is the largest to...

prostate cancer

Lower Vitamin D Levels Associated With Adverse Pathology at Prostatectomy in Men With Localized Prostate Cancer

In a study reported in the Journal of Clinical Oncology, Nyame et al found that lower serum 25-hydroxyvitamin D (25-OH D) levels were associated with an increased likelihood of adverse pathology at radical prostatectomy in men with localized prostate cancer. Study Details The cross-sectional...

solid tumors
prostate cancer

Survival Differs With Metastatic Site in Castration-Resistant Prostate Cancer

Overall survival differed according to the site of metastases in men with castration-resistant prostate cancer, according to a meta-analysis reported in the Journal of Clinical Oncology by Halabi et al. Study Details The study involved data from 8,820 men who received docetaxel chemotherapy in...

prostate cancer

Enzalutamide Improves Progression-Free Survival vs Bicalutamide in Nonmetastatic and Metastatic Castration-Resistant Prostate Cancer

Treatment with enzalutamide (Xtandi) tripled median progression-free survival vs bicalutamide in patients with nonmetastatic or metastatic castration-resistant prostate cancer, according to the phase II STRIVE trial reported in the Journal of Clinical Oncology by Penson et al. Study Details In...

Prostate Cancer

New High-Intensity Focused Ultrasound Advances Treatment for Prostate Cancer

For the estimated 220,000 men who will be diagnosed with prostate cancer this year, deciding on a method of treatment can be a challenge. Some with early-stage cancer pursue active surveillance, while others with more severe cancer immediately pursue surgery, including prostatectomy. Others fall...

Prostate Cancer

Biomarkers in Prostate Cancer: PARP Inhibitors and Defects in DNA Repair

New data on molecular biomarkers in advanced prostate cancer are accumulating at a fast pace. The studies in this area can now be broadly grouped in two distinct areas—those that broadly relate to androgen signaling and those that relate to DNA-repair pathways. The Androgen-Signaling Pathway With...

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