“Use of Xtandi in early stage prostate cancer on top of standard hormone therapy reduced the risk of disease spreading or death by 71 percent compared with hormone therapy alone, study results that could lead to significantly increased sales of the Pfizer Inc and Astellas Pharma Inc medicine.
“The data from a highly anticipated study released on Monday showed that it took 36.6 months for the disease to spread to other parts of the body in patients who received Xtandi plus androgen deprivation therapy (ADT), a measure known as median metastasis-free survival. That compared with 14.7 months for ADT alone, a highly statistically significant difference of nearly two years.”
“Adding docetaxel to androgen-deprivation therapy (ADT) improved overall survival (OS) by nearly 17 months in men with high-volume metastatic hormone-sensitive prostate cancer. Investigators for the multicenter phase III CHAARTED trial noted that the survival benefit did not extend to men with low-volume disease.
“In this updated analysis, the median OS was 57.6 months for the chemohormonal therapy arm versus 47.2 months for ADT alone (hazard ratio [HR], 0.72; 95% CI, 0.59-0.89; P = .0018) at a median follow-up of 53.7 months. For patients with high-volume disease (n = 513), the median OS was 51.2 months with chemohormonal therapy versus 34.4 months with ADT alone (HR, 0.63; 95% CI, 0.50-0.79; P <.001).”
“European regulators are allowing earlier use of Janssen’s Zytiga in the treatment pathway for metastatic prostate cancer.
“Zytiga (abiraterone) plus prednisone/prednisolone has been approved to treat newly-diagnosed high-risk metastatic hormone-sensitive prostate cancer (mHSPC) in adult men in combination with androgen deprivation therapy (ADT).
“The drug is already available in Europe for metastatic castration-resistant prostate cancer (mCRPC) in adults who are asymptomatic or mildly symptomatic after failure of ADT in whom chemotherapy is not yet clinically indicated and in adult men whose disease has progressed on or after a docetaxel-based chemotherapy regimen.”
“Back-to-back discoveries from Cleveland Clinic demonstrate for the first time how a testosterone-related genetic abnormality can help predict individual patient responses to specific prostate cancer therapies.
“The studies, published in the October 12 issue of JAMA Oncology, suggest that men who inherit this variant would benefit from a personalized treatment plan that targets specific hormonal pathways.”
“The first head-to-head comparison of docetaxel and abiraterone acetate for high-risk prostate cancer patients starting long-term hormone therapy found benefit with both treatments when added to androgen deprivation therapy (ADT). Treatment decisions may come down to specific toxicities, which differ between the treatments.
“The large STAMPEDE trial previously found that both docetaxel and abiraterone improved outcomes when compared with placebo. “Right now, oncologists and urologists want to know which combination is preferable, which is why we conducted this analysis,” said study author Matthew Sydes, MSc, a statistician at University College London.”
“Patients with high-volume, castration-naïve metastatic prostate cancer may have superior progression-free survival (PFS) outcomes when treated with early docetaxel, according to findings published online in the European Journal of Cancer.
“Using the Quality-adjusted Time Without Symptoms of disease and Toxicity of treatment (Q-TWiST) method, investigators also determined that the benefits associated with androgen deprivation therapy (ADT) plus docetaxel outweighed the risks associated with the treatment.”
“Combined therapy with abiraterone acetate/prednisone plus androgen deprivation therapy (ADT) significantly improved overall survival and radiographic progression-free survival (PFS) among men with metastatic hormone-naive prostate cancer compared with ADT and placebo alone, according to the results of the phase III LATITUDE trial (abstract LBA3) presented at the 2017 ASCO Annual Meeting.
” ‘In my opinion, these findings support the fact that adding abiraterone and prednisone to castration should now be considered the new standard of care for men with newly diagnosed metastatic prostate cancer,’ said researcher Karim Fizazi, MD, PhD, head of the department of cancer medicine at Gustave Roussy, University Paris-Sud, Villejuif, France.”
“Philip W. Kantoff, MD, chair of the Department of Medicine, Memorial Sloan Kettering Cancer Center and a 2014 Giants of Cancer Care winner for Genitourinary Cancer, discusses the combination of docetaxel (Taxotere) chemotherapy and androgen deprivation therapy (ADT) in the setting of metastatic hormone-sensitive prostate cancer.
“Considering the positive results in overall survival from the CHAARTED and STAMPEDE trials, which combined ADT with docetaxel, the next step became determining which patients would benefit from this combination.”
“For men with prostate cancer, use of androgen deprivation therapy (ADT) seems not to be associated with dementia, according to a study published online Nov. 21 in the Journal of Clinical Oncology.
“Farzin Khosrow-Khavar, Ph.D., from McGill University in Hamilton, Canada, and colleagues examined whether use of ADT is associated with increased risk of dementia, including Alzheimer’s disease. A cohort of 30,903 men newly diagnosed with nonmetastatic prostate cancer from April 1, 1988, to April 30, 2015 were recruited and followed until April 30, 2016. To account for delays associated with dementia diagnosis and minimize reverse causality, ADT exposure was lagged by one year.”