Social stress often leads to drug craving and relapse in cocaine-dependent populations. Currently there are no FDA approved medications for the treatment of cocaine dependence. Therefore, biomedical research studies aimed at investigating the brain mechanisms responsible for controlling emotional responses to social stress could have a significant impact on the development of effective therapeutic treatment strategies for cocaine-dependent individuals.
This study is for patients with prostate cancer. The purpose of this study is to compare the effects of dose-escalated radiation therapy with or without hormone therapy on your prostate cancer.
There are 2 treatment groups in this study:
1) Patients who receive radiation therapy only
2) Patients who receive radiation therapy plus hormone therapy
Patients will receive 44 radiation treatments over approximately 2 months. If the patient chooses to receive the brachytherapy implant, he will receive 25 daily treatments plus the implant procedure over a timeframe of approximately 6 weeks. Hormone therapy, if given, will last 6 months. After patients are finished receiving therapy, the study doctor will ask them to visit the office for follow-up exams at 3, 6, 9, and 12 months after finishing radiation treatment, every 6 months for 4 years, and yearly thereafter.
This study is being done for the following reasons:
?This study is being done to find out if a combination of just two chemotherapy drugs, docetaxel and cyclophosphamide, is as good as using different combinations of the chemotherapy drugs doxorubicin and cyclophosphamide, given with either docetaxel or paclitaxel, in treating your type of breast cancer. All of these drugs are used in standard combinations of chemotherapy for breast cancer.
?The researchers also want to learn about the side effects of the combinations of drugs used in this study. Side effect information will also be studied to see if there are any differences between the two-drug and three-drug chemotherapy combinations.
?In order to learn more about cancer tumors, this study includes special research tests that will be done on tumor tissue that was removed during your breast cancer surgery. Information about this study requirement will be explained to you in more detail later in this consent form.