Active clinical trials for "Prostatic Neoplasms"

Prostate cancer is the most frequently diagnosed non-skin cancer, and the second leading cause of men cancer death in the United States. Hormonal therapy remains a first-line treatment for metastatic prostate cancer. Initial responses to hormonal therapy with chemical or surgical castration are quite favorable, however, most patients will progress to a castration-resistant phase of the disease. Docetaxel is the primary chemotherapeutic option for patients with mCRPC. Abiraterone is a novel, selective, irreversible, and potent inhibitor of 17-[alpha]-hydroxylase/17,20-lyase (CYP17) enzymatic activity that has recently been demonstrated to further reduce testosterone levels in the blood to undetectable range (< 1 ng/dL) and is suggested to reduce de novo intratumor androgen synthesis. Abiraterone demonstrated activity in castration resistant prostate cancer patients previously treated with docetaxel chemotherapy. Recently, results of a phase III trial comparing abiraterone plus prednisone vs placebo plus prednisone in asymptomatic and without visceral metastasis, castration-resistant metastatic prostate cancer patients, demonstrated a better radiological progression free survival for abiraterone treated patients and a trend towards a better survival was clear for abiraterone treated patients. No clinical evidence exists about efficacy of chemotherapy and antiandrogen therapy combination. All trials have been performed in patients in which LHRH agonist treatment was continued although there is not clear evidence about efficacy of hormonal treatment. Some retrospective studies suggest that androgen deprivation treatment should be maintained in chemotherapy treated patients. Abiraterone has been proved to suppress androgen levels to negative values, and to add efficacy to castration hormonal therapy. Combination of abiraterone with docetaxel chemotherapy seems promising adding efficacy to only docetaxel chemotherapy. A randomized phase II study comparing docetaxel + prednisone + abiraterone to docetaxel + prednisone in mCRPC in patients treated previously with abiraterone, seems promising to explore addition of efficacy to taxotere after abiraterone hormonal treatment.

This is a study to assess the safety of the combination of mifepristone and eribulin in patients with metastatic or locally advanced unresectable breast or other specified solid tumors, and determine preliminary efficacy of the combination of mifepristone and eribulin in patients with metastatic or locally advanced unresectable Triple Negative Breast Cancer (TNBC). The structure for the study is a single arm, non-randomized, open-label, multicenter trial with no control group. The study will be conducted at up to 11 sites, with up to 40 evaluable patients

Radical prostatectomy has become the gold standard treatment for prostate cancer. Regarding of morbidity of access on open retropubic radical prostatectomy a lot of centers around the world start to develop laparoscopic and robotic approach over the past years. The problems regarding this techniques is that the pure laparoscopic prostatectomy shows a steep learning curve with a high initial complication rate, and the use of robotic assistance surgery despite of lower learning curve is associated with higher surgical supply and operative room costs. These costs may have a significant impact on overall cost of prostate cancer care especially in Brazil. In Brazil, the open route for radical prostatectomy is still the most frequent approach. One of the disadvantages of open prostatectomy from the other surgeries is the longest hospital stay. However, the question of what length of stay after this operation is optimal and necessary is unresolved. In this trial the investigators have compared a randomized group of patients that had discharged on postoperative day 2, 1 and same day surgery. The investigators had intent to evaluate the feasibility of ambulatory open radical prostatectomy (patient discharge in the same day of surgery - average 12 hours of hospitalization) maintaining patient satisfaction and safety.

The purpose of this study is to see how long it takes for prostate cancer to come back in patients who have had surgery to remove their prostate gland (radical prostatectomy), while being treated with enzalutamide (formerly known as MDV3100). Enzalutamide is known as an androgen-receptor signaling inhibitor, which means that it blocks activity of the male hormone, testosterone. Most prostate cancers are dependent on testosterone for growth. In this study, patients will take enzalutamide after surgery to see if it keeps their cancer from coming back.

Prostate cancer represents a significant health problem in the United States. This year 179,000 men in the United States will be diagnosed with prostate carcinoma and approximately 25% of them will die of the disease. In addition, the incidence and mortality of prostate carcinoma has been increasing steadily in the United States. Prostate-specific antigen (PSA) levels are commonly used as a biomarker for the detection of prostate cancer. Nonetheless, there is a significant false negative and false positive diagnosis since PSA levels elevate in benign prostatic hyperplasia and prostatitis and decrease in patients taking medications and herbal remedies. Twenty percent of biopsy-proven prostate carcinoma have PSA levels within the normal range, thus confounding the diagnosis based on the PSA screening test. Current diagnostic methods that include transrectal ultrasound (TRUS) and TRUS guided prostate biopsy are logistically difficult and insensitive. These are further complicated by equivocal prostatic biopsy findings such as prostatic intraepithelial neoplasia (PIN) or normal PSA with high clinical suspicion. A tracer with high specificity to prostate cancer related structures at a cellular level would enhance our understanding of the pathophysiology of prostate cancer and would contribute to the detection, localization and quantification of the disease and its metastases. This information will be invaluable in selecting the appropriate treatment regimen. This study will test the utility of [F-18]FMDHT to image prostate cancer and will evaluate if this radiotracer can differentiate primary prostate cancer in the prostate gland from normal prostate gland itself. More specifically, we will study the distribution kinetics of [F-18]FMDHT in normal healthy humans and in patients with prostate cancer. As per exploratory IND requirements, we performed toxicity assessment of FMDHT through an outside laboratory (ILS, Inc.) and the results of that study are attached as Appendix A. Based on our and others data, we hypothesize that: [F-18]FMDHT PET/CT will distribute initially in various normal tissues following blood flow pattern and will clear rapidly from tissues with no AR. [F-18]FMDHT PET/CT will detect metastatic disease that expresses AR. [F-18]FMDHT PET/CT uptake will be elevated in AR-expressing prostate cancer lesions compared to surrounding normal prostate. In order to progress [F-18]FMDHT into clinic, we are performing a pilot 'first-in-human' biodistribution study in subjects with and without prostate cancer.

The purpose of this study is to determine if newly diagnosed (within previous 3 months) participants with metastatic (spread of cancer cells from one part of the body to another ) hormone-naive prostate cancer (mHNPC) who have high-risk prognostic factors will benefit from the addition of abiraterone acetate plus low-dose prednisone to androgen deprivation therapy (ADT; lutenizing hormone releasing hormone [LHRH] agonists or surgical castration).

The purpose of this study was to explore the safety and tolerability of enzalutamide in combination with abiraterone acetate plus prednisone. Subjects diagnosed with cancer of the prostate that was getting worse and spreading to the bone despite receiving hormone treatment were enrolled and received study treatment until disease progression.

This research is being done to see if an investigational prostate cancer vaccine, called GVAX, can safely be given together with a single intravenous injection of a drug called cyclophosphamide to men that will undergo surgery to remove their cancerous prostate glands who have also received standard hormonal therapy.

A 2-part, Phase 1-2, open-label, parallel group, randomized study in patients with Castration-Resistant Prostate Cancer (CRPC) who are no longer responding to treatment with abiraterone and steroids. In Part A (Phase 1), patients will continue to receive the same doses of abiraterone and steroids they were receiving prior to study entry and will be randomized to receive 1 of 2 different treatment regimens of AT13387 in combination with abiraterone. Once the best regimen is established in Part A, based on safety and antitumor activity, patients will be randomized to the selected treatment regimen and dose of AT13387 in combination with abiraterone or AT13387 alone in Part B (Phase 2).

Protocol G200712 is a Phase II, exploratory study to assess the effects of GTx-758 on serum prostate specific antigen (PSA) response ans serum PSA progression in men with Metastatic Castration Resistant Prostate Cancer (mCRPC) on Androgen Deprivation Therapy (ADT) with luteinizing hormone-releasing hormone (LHRH) agonists, LHRH antagonists, or orchidectomy. This study will also assess the venous thromboembolism (VTE) risk of lower doses of GTx-758.