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Discover 20,904 clinical trials near Philadelphia, Pennsylvania. Find research studies in your area.
Showing 14121-14140 of 20,904 trials
NCT01093885
Systemic sclerosis is a chronic autoimmune connective tissue disorder with no universally accepted disease modifying regimen. Recruiting patients for systemic sclerosis treatment studies is difficult due to the limited availability of such patients and furthermore the use of a placebo arm is often deemed unethical due to the poor survival of diffuse systemic sclerosis patients. Long-term controlled trials examining functional outcomes and survival from novel therapeutic agents for systemic sclerosis are often difficult to undertake because of costs, rarity of the disease and ethical issues with the use of a true placebo. Open label single center studies while inferior to multicenter placebo controlled studies, have helped establish the benefits of certain pharmaceutical agents in systemic sclerosis, and while not universally accepted as disease modifying agents, have been used with some success to treat systemic sclerosis. The hypothesis on which we are basing this study is that an endothelin receptor antagonist and disease modifying agent with antifibrotic properties will have additive influence on fibrosis, inhibit cellular and humoral hyperactivity and interfere with smooth muscle proliferation in the vessel wall. The combination of these two agents will also be the first regimen to address the heterogeneity of scleroderma manifestations including ILD, pulmonary arterial hypertension and skin manifestations
NCT00450463
Background: * Flutamide is an approved drug for prostate cancer that blocks the effects of testosterone on prostate cancer cells and may slow the progression of the disease. * The vaccine in this study consists of a priming vaccine called PROSTVAC (rilimogene galvacirepvec/rilimogene glafolivec) -V/TRICOM (triad of costimulatory molecules), made from vaccinia virus, and a boosting vaccine called PROSTVAC-F/TRICOM, made from fowlpox virus. DNA (Deoxyribonuceic acid) is inserted into the priming and boosting vaccine viruses to cause production of proteins that enhance immune activity and also to produce prostate specific antigen (PSA) a protein that is normally produced by the patients tumor cells. * GM-CSF (granulocyte macrophage colony stimulating factor), given along with the vaccine, is a chemical that boosts the immune system. It is used in this study to try to increase the usefulness of the vaccine by increasing the number of immune cells at the vaccination site. Objectives: -To determine if treatment with a prostate cancer vaccine plus flutamide is more effective than flutamide alone in delaying disease progression in patients with prostate cancer. Eligibility: * Patients 18 years of age and older with androgen-insensitive prostate cancer that has not spread beyond the prostate gland. * Patients with a rising PSA (prostatic specific antigen) who have already been treated with anti-iandrogen therapy (either bicalutamide or nilutamide). Design: * There are two treatment groups in this study. Group A receives only flutamide; group B receive flutamide plus vaccine. * Patients in both groups receive flutamide by mouth three times a day. * Patients in group B receive PROSTVAC-V/TRICOM on day 1 and PROSTVAC-F/TRICOM on day 29 and again every 4 weeks. All vaccines are given as injections under the skin. * Patients have blood tests for PSA levels every month and scans every 3 months until the disease worsens. * After 3 months of therapy, patients receiving in group A (flutamide alone) may cross over to receive vaccine if they develop a rising PSA and scans show no sign of disease spread. Patients in group B (flutamide plus vaccine) stop flutamide and may continue vaccine therapy. At this point patients may continue to receive treatment until the disease progresses or PSA levels rise....