Toward a Comprehensive Supportive Care Intervention for Older or Frail Men With mCRPC
Metastatic Prostate CancerMulticentre pilot study (n=90) which aims to study a prevalent population of elderly or frail patients with mCRPC whom are often excluded from clinical trial participation. (Data is sorely needed in this population) The study aims to determine: if symptom monitoring (daily) is feasible using telephone or electronic means of communications in the elderly or frail patient with mCRPC The time course/pattern of symptoms important to quality of life for patients undergoing chemotherapy, abi/enza, or Radium 223 If changes in physical activity (quantified by fitbit) predict for changes to ESAS in men undergoing treatment d) Qualitatively assess the supportive care needs of older/frail men with mCRPC
Modeling Clinical Failure in Prostate Cancer Patients Based on a Two-stage Statistical Model
Prostate CancerBiomarker series can indicate disease progression and predict clinical endpoints. When a treatment is prescribed depending on the biomarker, confounding by indication might be introduced if the treatment modifies the marker profile and risk of failure. The two-stage model fitted within a Bayesian Markov Chain Monte Carlo framework is particularly flexible to account for such data. Prostate-specific antigens in prostate cancer patients treated with external beam radiation therapy can be monitored. In the presence of rising prostate-specific antigens after external beam radiation therapy, salvage hormone therapy can be prescribed to reduce both the prostate-specific antigens concentration and the risk of clinical failure, an illustration of confounding by indication. The prognostic value of hormone therapy and prostate-specific antigens trajectory on the risk of failure based on a two-stage model within a Bayesian framework to assess the role of the prostate-specific antigens profile on clinical failure while accounting for a secondary treatment prescribed by indication. the aim of this research is to model prostate specific antigens using a hierarchical piecewise linear trajectory with a random changepoint. Residual prostate-specific antigens variability can be expressed as a function of prostate-specific antigens concentration. Covariates in the survival model can include : hormone therapy, baseline characteristics, and individual predictions of the prostate-specific antigens nadir and timing and prostate-specific antigens slopes before and after the nadir as provided by the longitudinal process.
Prevalence of Neglected Side Effects to Radical Prostatectomy
Prostate CancerThe purpose of this exploratory data collection is to strengthen our knowledge of some of the rarer distresses following surgical removal of the prostate. In general these are: Side effects related to sexuality, including: Altered perception of orgasm, Orgasm associated pain, Penile shortening and deformity. Side effects related to urinary incontinence. Urinary tract infection after operation. Influence of distress on sexual quality of life. Influence of distress on the patient´s sex drive. In addition information on a range of demographics and information on the patient´s erectile function will be collected.
Predictive Value of Prostate-specific Antigen Isoform p2psa and Its Derivates in the Diagnosis of...
Prostate CancerIn Europe, prostate cancer (PCa) is the most common solid neoplasm, with an incidence rate of 214 cases per 1000 men, outnumbering lung and colorectal cancer. Early detection tests have been developed in order to identify PCa while it is still confined to the prostate gland. The two most commonly used tests are digital rectal examination and serum prostate-specific antigen (PSA) level: however, most of cases is detected in the so called T1c stage, i.e. for PSA increasing only. As marker, PSA is organ-specific but not cancer-specific, and its levels may change as result of physical activity, sexual activity, in the presence of benign prostatic hyperplasia (BPH), acute and chronic prostatitis, as well as in the presence of PCa. A total serum PSA of 4.0 ng/ml has traditionally been used as threshold for considering prostate biopsy and large programs for the early detection of prostate cancer have shown that almost 70% of cancer cases can be detected using a PSA cutoff of 4.0 ng/ml. However, using a PSA threshold of 4.0 ng/ml 20% to 25% of prostate cancer cases are not detected (false-negative) and the false-positive rate is 65%. To improve the usefulness of PSA for identifying patients who require biopsy, the PSA threshold has been lowered at 2 ng/ml; moreover, the levels of free and bound PSA have been assessed, together with PSA density (the rate of PSA over the prostate volume) and PSA velocity (the rate of PSA increase), which seem to have some validity for detecting prostate cancer. Recent studies have shown that other new biomarkers could be used in the diagnosis of early prostate cancer as they showed a higher sensitivity and specificity. In the last two years, several investigators showed that PSA isoform [-2] proPSA (p2PSA) and its derivatives, namely, percentage of p2PSA to free PSA (%p2PSA) and the Prostate Health Index [PHI; (p2PSA / free PSA) × √tPSA)] improve the accuracy of total PSA (tPSA) and percentage of free PSA (%fPSA) in predicting the presence of PCa at prostate biopsy and they are also related to PCa aggressiveness at biopsy. The aim of this study is to confirm the diagnostic and prognostic predictive value of prostate-specific antigen isoform p2psa and its derivates, %p2psa and prostate health index in the detection of prostate cancer in patients with a PSA 2-10 ng/ml and/or suspicious DRE.
PSA Antibody Levels in Samples From Patients With Prostate Cancer Treated on Protocol ECOG-E9802...
Prostate CancerRATIONALE: Studying samples of blood or tumor tissue from patients with cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer. PURPOSE: This clinical trial studies prostate-specific antigen (PSA) antibody levels in samples from patients treated for prostate cancer on trial ECOG-E9802.
Evaluation of Modern MRI in the Diagnosis of Prostate Cancer in a Danish Setup
Prostatic NeoplasmsClinical staging of prostate cancer in Denmark is determined solely by digital rectal examination and sometimes by TRUS, even though the investigators know these examinations are inaccurate and have limitations. Since the majority of men diagnosed with prostate cancer will die with their disease and not of their disease, and the different treatment-options may imply greater side effects, it is important to improve the diagnostic localization and staging of the tumour for optimal clinical management and therapy selection. The development of modern multiparametric-high-field-magnetic-imaging (mMRI) offers new possibilities and approaches in detection, localization and staging of prostate cancer due to its high resolution and soft-tissue contrast. mMRI can provide information about the morphological, metabolic and cellular changes and characterize tissue- and tumour- vascularity and correlate it with tumour aggressiveness. This helps to locate and stage a possible tumour and to guide targeted-biopsies towards disease-suspicious areas. Internationally published data support the rapidly growing use of multiparametric MRI, as being the most sensitive and specific imaging tool for prostate cancer patients. While mMRI internationally is a well recognized and accepted method for detection, localization and staging of prostate cancer, the use of mMRI in the diagnosis of PCa in Denmark has never been applied. Therefore, this project is carried out in order to evaluate the use of modern mMRI in the diagnosis of prostate cancer in a Danish setup.
A Canadian Observational Study in Metastatic Cancer of the Prostate: A Study of ZYTIGA Use in the...
Prostatic NeoplasmsThe purpose of this study is to temporally evaluate the impact of abiraterone acetate (ZYTIGA) therapy on Patient Reported Outcomes (PROs) and on clinical outcomes in the chemotherapy-naive metastatic castrate-resistant prostate cancer (mCRPC) population. Safety data, levels of health care resource utilization associated with abiraterone acetate (ZYTIGA) therapy will also be prospectively collected and analyzed.
Non-Interventional Study PREVENT
Postoperative or Postradiation Adjuvant Androgen Deprivation Therapy in Locally Advanced Prostate Cancer (High and Very High Risk) PatientsThis is a multicentre, non-interventional, prospective study to be carried out in representative medical institutions in order to get the information on administration of postoperative and post-radiation adjuvant androgen deprivation therapy (including "go" / "no go" decision, regimens, dosages and duration) used in locally advanced prostate cancer patients with high and very high risk of recurrence in Russia.
An Observational Study Looking at How Well the Drug Eligard Works and How Well it is Tolerated by...
Advanced Prostate CarcinomaEligard is a 6-month depot injection formulation that combines the active ingredient leuprorelin acetate (LA) with a biodegradable polymer matrix (Atrigel® delivery system). The 6-month (45 mg) formulation was approved for the Russian market in 2009. It has been shown to reduce testosterone and prostate-specific antigen (PSA) levels and to be well tolerated in several clinical trials. However, clinical trials are limited by strict patient inclusion and exclusion criteria. Therefore, the current non-interventional study aimed at investigating whether the efficacy and tolerability of the 6-month LA depot formulation could also be confirmed in a broad and heterogeneous patient population encountered in daily clinical practice in the Russian Federation. This study will evaluate total serum PSA and testosterone levels, Quality of Life (QoL) of patients, demographic patient data, diagnosis and diagnostic findings in patients. It will provide analysis in different subgroups of patients depending on previous hormonal treatment and anamnesis of disease.
Multi-Center Trial of High-resolution Transrectal Ultrasound Versus Standard Low-resolution Transrectal...
Prostatic NeoplasmsProstate Cancer1 moreThis trial uses a ultra high-resolution ultrasound system and specialized transducer, intended for use in prostate imaging. The system's image resolution is significantly better than the standard of care, due to its higher frequency. This allows the system to visualize suspicious areas and structures, and for greater accuracy for guided biopsy. The primary objective of this study is to demonstrate that ultra high-resolution transrectal ultrasound (UHR-TRUS) is superior to conventional low-resolution transrectal ultrasound (LR-TRUS) in detecting clinically significant cancer among men without known prostate cancer and with an indication for prostate biopsy. The secondary objective of this study is to compare the difference in the rate of detection of clinically significant cancer between LR-TRUS and UHR-TRUS, from before investigator training to after investigator training. The tertiary objective for the investigation is to compare the combined sensitivity and specificity in determining cancer detection overall for image-guided biopsy in UHR-TRUS vs. LR-TRUS.