There are more than 498,563 clinical trials published worldwide with over 60,000 trials that are currently either recruiting or not yet recruiting. Use our filters on this page to find more information on current clinical trials or past clinical trials (free or paid) for study purposes and read about their results.
The mechanisms responsible for the development of hormonal refractory prostate cancer (HRPC) have been elusive. Genetic inactivation/loss of the PTEN tumor suppressor gene occurs in 30-60% of advanced prostate cancers and in 20% of the localized form. Researchers hypothesize that PTEN loss is a landmark genetic event in prostate cancer progression into the fatal HRPC form. One consequence of PTEN loss is activation of the oncogenic Akt and phosphorylation of downstream Akt targets including mTOR. mTOR controls many important cellular processes including cell cycle regulation. We propose to evaluate pharmacodynamic assessments of the mTOR inhibitor RAD001 in intermediate and high risk prostate cancer patients in the neoadjuvant setting. Patients will be admitted to 6 weeks treatment with RAD001 10 mg/day followed by either radical prostatectomy or radiotherapy combined with hormonal treatment. Immunohistochemistry with antibodies for phosphorylated p70S6K , pS6, Akt as well as antibodies for VEGF, BCL2 and PTEN in prostate cancer tissues before and after 6 weeks RAD001 treatment will be performed. Additionally, Patients will be evaluated by FDG-PET scan before (as baseline) and after RAD001 treatment. A link between mTOR signaling and glycolysis regulation was established and may provide a mechanism to assess drug-target interaction of RAD001 in prostate cancer. The secondary endpoint of the trial will be to determine the response proportion to RAD001 treatment by assessing time to biochemical failure followed by radiation therapy or radical prostatectomy. The data will be compared to a matched cohort of high and intermediate-risk prostate cancer patients admitted to the same treatments modalities without receiving RAD001.
This is a randomized, placebo controlled study in cancer patients reporting fatigue persisting for at least two months following completion of chemotherapy. Subjects will receive 6 weeks of either acupuncture or placebo treatment as a means of evaluating whether acupuncture reduces chronic fatigue after chemotherapy.
The anthypertensive treatment with Losartan may have benefits beyond blood pressure reduction on myocardial structure and function in hypertensive diabetic patients. We will evaluate the effect of losartan treatment on structural characteristics of myocardium in hypertensive diabetic patients: 1. left ventricular mass, intraventricular septal thickness, fractional shortening. 2. myocardial qualitative alteration and heterogeneity of myocardial tissue that describes myocardial texture and echodensity, related to collagen deposition; myocardial qualitative alteration will be evaluate by ultrasonic myocardial integrated backscatter signals (IBS) both as peak end diastolic signal intensity and as cardiac cyclic variation 3. alteration of diastolic function as studied by Doppler flow velocities across the mitral valve (Pulse Wave Doppler) and pulse wave Tissue Doppler Imaging parameters 4. aortic strain and distensibility (that is in relation with LVH) 5. epicardial adipose tissue measurement (this parameter is related to the visceral fat and may be an easy method to indicate patients with high cardiovascular risk).
Human immunodeficiency virus/Hepatitis B virus (HIV/HBV) co-infections are frequently observed due to shared routes of transmission, with reported figures indicating 6-9% of HIV-infected individuals in developed countries are chronically infected with HBV. HIV infection impacts on the natural progression of HBV infection, increasing levels of HBV replication and the risk of liver-associated mortality. Liver diseases associated with HBV are affected by the antiviral drugs used for HIV infection (toxic side effects), the current immune function in the patient, by improvements in the immune system brought about by control of the HIV infection, and by the development of resistance to the antiviral agents used for both the hepatitis B and the HIV infection. Tenofovir (TDF) is a newer antiviral drug that is frequently used for HIV infection and is also highly active against hepatitis B; however it is still unknown whether resistance to TDF will eventually develop and how this will affect the long-term outcomes
To determine the safety and efficacy of surgical resection with Gliadel® 3.85% wafer implantation, followed by concomitant limited field radiation therapy and temozolomide, followed by dose dense temozolomide and bevacizumab in subjects undergoing initial surgery for newly-diagnosed high grade glioma.
Data from this study will provide the first information how the innate immune system may be altered in HIV-HCV and HIV-HBV co-infected individuals, and describe Toll-like receptor changes with HIV co-infection therapy.
The purpose of this study is to measure secretion accumulation within endotracheal tubes of mechanically ventilated patients and test the efficacy, safety and clinical impact of removing the secretions using novel airway management catheters (Complete Airway Management Catheters: CAM Rescue Cath and CAM Endotrach Cath).
The aim of the study is to evaluate the functional recovery in two groups of primary stroke patients presenting with moderate/severe disability over a six month period through the implementation of a randomised controlled trial. The first group or the experimental group will receive routine therapy and additional lower limb exercise therapy in the form of family assisted exercises. The second group or the control group will receive routine therapy with no additional formal input from their family members. A secondary aim of the project is to evaluate the impact of the FAME programme on the person with stroke and the individual (s) assisting in the delivery of exercises.
Angiotensin II has been proposed as a lipid metabolism regulator. It is known that adipocytes secrete a variety of protein, such as TNFα, plasminogen activator inhibitor (PAI)-1, leptin, resistin and adiponectin; these proteins have a wide range of biological effects and are associated with insulin resistance. Adipocytes also produce angiotensinogen and angiotensin II and a local renin-angiotensin system (RAS) is present in adipose tissue. In overweight or obese hypertensive normocholesterolemic patients the treatment with AT1-receptor blocker (Losartan) may have a better effect on hepatic steatosis and visceral fat deposition than the antihypertensive treatment with calcium channel blocker (amlodipine). Simvastatin will be added to both groups. The aim of this study is to evaluate the effect of losartan and simvastatin on ultrasonographic qualitative and quantitative parameters in overweight or obese hypertensive normocholesterolemic patients with hepatic steatosis.
To evaluate the causal relationship between Rho/Rho kinase overactivity and mechanisms of vascular dysfunction in patients with atherosclerosis.