There are about 173942 clinical studies being (or have been) conducted in United States. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The purpose of this study is to identify the gaps in diagnosing and managing hepatitis C infected patients so that interventions can be targeted to address these problem areas in order to optimize care of these patients.
The purpose of this study is to evaluate the genotype of CTCF, a proven transcription factor, in patients with infantile hemangiomas and to monitor tumor growth. The investigators aim to determine whether or not the CTCF genotype might serve as an early and reliable predictor of tumor growth.
The investigators would like to investigate the effects of treating sleep apnea with a positive airway pressure device, either continuous (titrated) versus auto titrated on the control of blood pressure in patients with Resistant Hypertension.
The purpose of this study is to determine the feasibility, safety and efficacy of a unidirectional breathing mask (breathe in through the nose and out through the mouth or breathe in through the mouth and out through the nose) in COPD patients with breathing difficulties requiring noninvasive positive pressure ventilation (NPPV).
Introduction: The orthopaedic surgeon is frequently exposed to ionizing radiation, especially during intraoperative fluoroscopy. It is expected that using a laser guided fluoroscopy technique, which should improve accuracy of radiography, should also reduce the amount of time of exposure to radiation. Finally, the literature appears controversial in this matter with no clear conclusions that could be drawn from such. Hypothesis: The test hypothesis is that the use of the laser-aiming device for fluoroscopy in several orthopaedic procedures will reduce the exposure of the patient and the surgeon to the damaging effects of radiation. The null hypothesis then states that there will be no difference in exposure to radiation between the group using the laser device and the group not using the apparatus. Methods: A prospective randomized controlled trial will be performed in which patients undergoing fluoroscopy will be randomly allocated to two groups. One group will undergo imaging with use of the device throughout the procedure and the other group will undergo radiation without the laser guided device. Number and time of exposure will be recorded for each procedure. It is of the utmost importance that the complexity of the procedures remains relatively similar. It is believed that a good measure of complexity is the surgical time. Therefore, any procedures that are statistically similar from a set mean (p > 0.05) would be included into the study. It is also important that one or two surgeons with similar expertise and years of experience perform the surgeries to avoid confounding factors. It is expected that throughout the duration of the study (8 weeks) 50-100 cases would be reported which would produce statistically significant results. The results will be analyzed by calculating confidence intervals and differences between means of continuous data and significance levels by the Student's t test. Statistical significance will be set to P < 0.05. Risks and Benefits: This study involves minimal risk. The use of the laser guide will not increase or introduce any risks other than the associated inherent surgical risks. The risks usually associated with this type of studies concern breach of confidentiality. To reduce this risk, research numbers will be assigned to subjects' data collected during the procedure, whose personal information will be found in another password-protected database. This study will help the investigators to investigate a technique that may help reduce the amount of time that a patient is exposed to radiation.
The investigators' objective is to analyze a group of patients who have had a partial meniscectomy but continue to have knee pain after surgery with a double-blind, randomized prospective study comparing the use of Hylan G-F 20(single injection of a viscosupplementation) versus placebo injection. The investigators would expect patients who receive the treatment (Hylan G-F 20) to have lower pain compared to the patients who were in the placebo group (had the needle injected into the knee but no medication or substance injected) since Hylan G-F 20 has been shown to decrease pain in arthritic patients.
The primary objective of the study is to determine the safety profile and overall response rate of IPI 504 in patients with advanced dedifferentiated liposarcoma.
This randomized, double-blind, placebo-controlled study will evaluate the efficacy, safety and tolerability of RO5036505 in patients with inadequately controlled moderate to severe asthma. Patients will be randomized to receive either RO5036505 (380mg iv infusion once weekly) or placebo for 8 weeks. Patients will be on a standardized inhaled corticosteroid/long-acting beta-agonist regimen during study treatment. Target sample size is 50-100 individuals.
This is a parallel-group, placebo-controlled trial examining the cognitive effects at weeks 1, 4, & 8 of once-weekly oral D-cycloserine 50 mg added to a stable dose of antipsychotic for 8 weeks in adult outpatients with schizophrenia.
The purpose of this study is to determine whether an outpatient combination of lovastatin and low-to-moderate dose interferon is effective in the treatment of patients with malignant melanoma.