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Discover 12,973 clinical trials near Texas. Find research studies in your area.
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Showing 11901-11920 of 12,973 trials
NCT00617305
To evaluate the change from baseline in pulmonary vascular resistance (PVR), and other hemodynamic parameters, following the addition of ambrisentan to background phosphodiesterase type-5 inhibitor (PDE-5i) therapy in subjects with pulmonary arterial hypertension (PAH) who have demonstrated a sub-optimal response to PDE-5i monotherapy. The study was originally designed as a 2-arm, double-blind, randomized study in which patients received ambrisentan or placebo for 24 weeks, and then received ambrisentan blinded to dose for 24 weeks. With Protocol Amendment 2 (12 June, 2009), the study was switched to single-arm, open-label treatment, and all patients remaining in the placebo arm were switched to open-label ambrisentan treatment. Patients who enrolled after Amendment 2 all received open-label ambrisentan.
NCT00660517
The purpose of this study is to determine if two allergy medications (azelastine and fluticasone) are more effective than placebo or either medication alone (azelastine or fluticasone)
NCT00534313
The purpose of this study is to determine an optimal abatacept dosing regimen for the treatment of active arthritis due to psoriatic arthritis in patients who have had a prior inadequate response to disease-modifying antirheumatic drugs, including methotrexate and tumor necrosis factor alpha-blockade compounds.
NCT00772005
The primary objective of the study is to evaluate whether armodafinil treatment is more effective than placebo as adjunctive therapy to antipsychotic medication in alleviating the negative symptoms of schizophrenia
NCT00843050
The purpose of this study is to determine whether P276-00 is safe and effective in treatment of Mantle Cell Lymphoma that is recurred after or not responding to at least one previous line of treatment.
NCT00087490
To determine if linezolid is superior to vancomycin in the treatment of complicated skin and soft tissue infections due to MRSA in adult subjects
NCT00976027
The aim of this study is to determine the efficacy of Fluzone High Dose vaccine and that of Fluzone® vaccine in the elderly. Primary objective: To measure the efficacy of the vaccine, defined as the prevention of laboratory-confirmed influenza caused by viral types/subtypes that are antigenically similar to those contained in the respective annual vaccine formulations. Secondary objectives: * To compare the clinical efficacy of Fluzone High Dose vaccine with that of Fluzone® vaccine in elderly adults, with respect to laboratory-confirmed influenza illness caused by any type or subtype of influenza virus. * To compare the clinical efficacy of Fluzone High Dose vaccine with that of Fluzone® vaccine in elderly adults, in preventing culture-confirmed influenza illness caused by viral types/subtypes antigenically similar to those contained in the respective annual vaccine formulations.
NCT00752609
The purpose of this study is to determine the efficacy and safety of Peginesatide Injection for the maintenance of anemia in patients with chronic renal failure who are on hemodialysis or do not require dialysis and who were previously treated with Darbepoetin Alfa.
NCT00003712
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. PURPOSE: Phase I trial to study the effectiveness of CCI-779 in treating patients who have advanced solid tumors.
NCT01248468
The main purpose of this study is to compare the efficacy and safety of aspirin, acetaminophen and caffeine (AAC) with sumatriptan and placebo in the acute treatment of migraine.
NCT00354159
The purpose of this clinical research study is to evaluate the safety and effectiveness of the investigational implantable hemodynamic monitor (IHM), and of the IHM in combination with an implantable cardioverter defibrillator (ICD). The investigational IHM has the ability to record and report the force with which the heart pumps blood (heart pressures). When combined with the ICD, the device has the additional ability to send a strong electrical impulse, or shock, to the heart when it detects dangerously fast heartbeats to return it to a normal rhythm. The IHM and IHM/ICD are implanted surgically just under the skin in the upper chest area. This study will also determine how doctors use the information related to heart pressures in the management of heart failure.
NCT00282711
The purpose of this study is to compare two types of exercise stress testing to find the best method for detecting heart disease in women.
NCT00084903
RATIONALE: New diagnostic procedures such as fluorescence and reflectance spectroscopy (shining light on tissue and measuring patterns of light reflected) may improve the ability to noninvasively detect cervical intraepithelial neoplasia and dysplasia. PURPOSE: This diagnostic trial is studying how well fluorescence and reflectance spectroscopy during colposcopy work in detecting cervical intraepithelial neoplasia and dysplasia in healthy participants with a history of normal Pap smears.
NCT00511615
The hypothesis of this research project is that topical application of the anti-EGFR or anti-E6/E7 contrast agents followed by optical imaging will yield images that reflect spatial variations in expression that correlate with the presence of cervical precancer. To gather feasibility data the investigators will: 1. Obtain cervical specimens from women with high grade squamous intraepithelial lesions (HGSILs) being treated with the loop electrosurgical excision procedure (LEEP). 2. After Loop Electrosurgical Excision Procedure (LEEP) is performed, obtain low and high resolution optical images before and after applying contrast agents topically to the epithelial surface of the tissue for 30 minutes before rinsing. 3. Submit the specimen for histology, and have it sectioned and stained using both H\&E and immunohistochemical staining for EGFR or E6/E7. The images will be reconstructed into a two dimensional map delineating areas of Cervical Intraepithelial Neoplasia (CIN) and of EGFR or E6/E7 overexpression. Maps of the pathology will be compared to those obtained from the intact cervix exposed to the contrast agent.
NCT00506233
Primary Objective: 1\. To determine the feasibility of conducting a multi-site longitudinal observational study of patients with chronic graft-versus-host disease (GVHD).
NCT01296620
Post-operative administration of ulimorelin is expected to reduce time to recovery of Gastrointestinal (GI) function in patients who have undergone partial large bowel resection
NCT00085839
The purpose of this noncomparative study is to obtain preliminary estimates of the efficacy of erlotinib and standard chemotherapy in patients with advanced, previously untreated nonsmall cell lung cancer (NSCLC) and an Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 2. The study will also evaluate the safety of single-agent erlotinib in this patient population.
NCT00030225
The purpose of this study is to determine if treatment with the ELAD Bioartificial Liver Assist Device is beneficial to patients in Acute Liver Failure either as a bridge to liver transplant or bridge to native liver recovery.
NCT00446654
The purpose of this research study is to determine how safe and effective subconjunctival injections of CGC-11047 are in subjects with wet age related macular degeneration at two different dosing intervals.
NCT01188837
Common medical therapies for knee osteoarthritis are patient education, drug and physical therapy, exercise and surgery. These modalities may offer improvement but drugs and surgery carry significant risk. Manipulative therapy for KOA gives pain relief and increased function. However, research suggests addition of manipulative and soft tissue therapy (to the entire kinetic chain: lumbosacral, sacroiliac, hip, knee, ankle and foot joints), may give a better outcome. Exercise therapy is considered an effective and standard care for KOA.
