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Find 274 clinical trials for heart disease near Portland, Oregon. Connect with research centers in your area.
Showing 241-260 of 274 trials
NCT00277524
The purpose of the OMNI study is to characterize therapy and diagnostic utilization in study participants implanted with study devices and to describe Implantable Cardioverter Defibrillator(ICD)therapy utilization for life threatening arrhythmias in primary and secondary prevention study participants. This study will assess therapies in Medtronic pacemaker, defibrillator, and cardiac resynchronization therapy devices. The first therapy is for reducing unnecessary pacing in pacemaker patients. The second therapy provides pacing therapy in an attempt to stop fast or life threatening ventricular arrhythmias in lieu of delivering a defibrillation shock. The third therapy is a diagnostic measurement of a patient's fluid status and provides the physician information on the patient's heart failure status. The study will also assess the time to a patient's first defibrillation shock and will verify that the shock was for a fast or life threatening ventricular rhythm.
NCT00047437
The purpose of this study is to determine the long-term safety and effectiveness of exercise training for individuals with congestive heart failure (CHF).
NCT00307047
The purpose of the SPIRIT IV Clinical Trial is to continue to evaluate the safety and efficacy of the XIENCE V® Everolimus Eluting Coronary Stent System (XIENCE V®). The XIENCE V® arm will be compared to an active control, represented by the FDA-approved TAXUS® EXPRESS2™ Paclitaxel-Eluting Coronary Stent System (TAXUS®), commercially available from Boston Scientific. TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary Stent System is manufactured by Boston Scientific.
NCT00132886
This study will look at how a single dose of study medication (tolvaptan) versus an inactive sugar pill (placebo) effect pressures in the heart in patients with congestive heart failure. Higher than normal pressures can be related to symptoms of heart failure (shortness of breath, fatigue, etc.).
NCT00990327
The purpose of this study is to see whether apadenoson is as effective as adenosine when used as a pharmacological stress agent in myocardial SPECT-Imaging to detect defects in the supply of blood to the heart muscle (myocardial perfusion defects). The study will also look at whether apadenoson is better tolerated than adenosine when used in SPECT-MPI.
NCT00180479
This study is divided into 5 arms: 1. Randomized Clinical Trial (RCT): Prospective, randomized, active-controlled, single blind, parallel two-arm multi-center clinical trial in the United States (US) comparing XIENCE V® Everolimus Eluting Coronary Stent System (CSS) (2.5, 3.0, 3.5 mm diameter stents) to the Food and Drug Administration (FDA) approved commercially available active control TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary Stent (TAXUS® EXPRESS2™ PECS) System 2. US 2.25 mm non-randomized arm using 2.25 mm diameter XIENCE V® Everolimus Eluting CSS 3. US 4.0 mm non-randomized arm using 4.0 mm diameter XIENCE V® Everolimus Eluting CSS 4. US 38 mm non-randomized arm using 38 mm in length XIENCE V® Everolimus Eluting CSS 5. Japanese non-randomized arm using XIENCE V® Everolimus Eluting CSS (2.5, 3.0, 3.5, 4.0 mm diameter stents) in Japan The TAXUS® EXPRESS2™ Paclitaxel Eluting Coronary Stent System is Manufactured by Boston Scientific.
NCT00646438
Standard care for patients with diabetes having CABG surgery at Providence St. Vincent Medical Center includes strict control of blood sugar (glucose) levels for 3 days after surgery. This is done through frequent monitoring of blood sugar levels and by giving insulin continuously through a needle into a vein (intravenously). This intensive glucose control has resulted in fewer complications such as serious infections and death, and has shortened the length of the hospital stay for patients. This study treatment is different from standard treatment in that it extends the intensive glucose control beyond the third postoperative day to one full year. Once discharged from the hospital following the CABG procedure, the intense glucose control is done using subcutaneous insulin (a shot under the skin), oral medications, and by measuring blood sugar levels frequently. The purpose of this study is to see how safe and effective strict glucose control is when extended beyond 3 days and hospital discharge for one year. Another purpose is to see how well patients can comply with the daily management of intensive glucose control for one-year as well as the study follow-up schedule.
NCT00557921
The purpose of the COGENT-1 clinical trial is to determine whether CGT-2168 (clopidogrel and omeprazole) compared to clopidogrel is safe and effective in reducing the incidence of gastrointestinal bleeding and symptomatic ulcer disease, in the setting of concomitant aspirin therapy. Antiplatelet therapy is an essential element of care for patients with atherothrombotic disease. Bleeding is a fundamental adverse effect of all antiplatelet drugs including aspirin, clopidogrel and dual antiplatelet regimens. The gastrointestinal tract is the most common site of bleeding related to antiplatelet therapy, typically in connection with peptic ulcer disease. Recently published studies suggest the use of clopidogrel carries a gastrointestinal bleeding risk similar to that of aspirin or non-aspirin non-steroidal anti-inflammatory drugs. Patients taking any two of these drugs (clopidogrel, aspirin and/or non-aspirin NSAIDs) are exposed to an even higher risk of bleeding and ulcer disease. Cogentus Pharmaceuticals is launching phase 3 trials of a novel combination product, CGT-2168, which has the potential to significantly reduce this problem and increase patient safety. CGT-2168 combines a standard dosage of clopidogrel and a gastroprotectant (omeprazole) in a once-daily pill that may reduce the likelihood of adverse gastrointestinal events.
NCT00396136
The objective of this post approval registry is to confirm the long-term safety and effectiveness of the Corox Over-the-wire (OTW) Steroid Left Ventricular (LV) lead as used in conjunction with a BIOTRONK cardiac resynchronization therapy defibrillator (CRT-D). The Corox OTW Steroid LV Lead is capable of providing permanent pacing therapy to the left ventricle in a CRT-D system. The following are the specific objectives to be evaluated during this post-approval registry: * Long-term effectiveness of the COROX OTW Steroid in providing biventricular pacing * Safety of the COROX OTW Steroid LV pacing lead
NCT00371709
TAXUS ATLAS is a global, multi-center, single-arm, non-inferiority trial comparing results from patients treated with the TAXUS Liberté stent to an historical TAXUS Express control. The control group is a case-matched, blended population of TAXUS Express patients from the TAXUS IV and TAXUS V de novo clinical trials. The objective of the study is to evaluate clinical outcomes of TAXUS Liberté-SR stent in de novo lesions and to assess the non-inferiority of TAXUS Liberté versus TAXUS Express. The TAXUS Liberté-SR stent is hypothesized to have comparable safety and efficacy to the TAXUS Express stent.
NCT01031680
This study is carried out to assess whether dapagliflozin lowers blood glucose, body weight and blood pressure, when added to patients existing medications and how it compares with their usual treatment without added dapagliflozin. Safety data will be collected and analysed to confirm that treatment with dapagliflozin is safe and well tolerated in patients who have diabetes, cardiovascular disease and hypertension.
NCT00957034
Heart failure (HF) is a complex condition resulting from structural or functional heart diseases that impair the ability of the heart to fill with or pump out blood. The main manifestations of HF are shortness of breath and tiredness which may limit the ability to exercise or perform simple daily physical activities such as walking. Heart disease leading to HF is associated with reduced muscle mass and reduced strength and low blood levels of testosterone; a hormone normally produced by the human (male and female) body. Recent studies have shown improvements of symptoms and ability to exercise in patients with heart failure receiving testosterone. This is a placebo controlled study to determine the efficacy and safety of low dose testosterone (300 and 450 microgram/day) delivered by a transdermal system (patch) in women with significant HF.
NCT00863707
This study is intended to assess the safety and tolerance of regadenoson in subjects with renal impairment.
NCT00562016
The IMPELLA® 2.5 System will be superior to Intra Aortic Balloon Pump in preventing the composite rate of major adverse events during and after the PCI procedure.
NCT00990964
The purpose of the study is to assess lead implant success and complication rate using the Medtronic Attain Family of left-heart leads and delivery catheters.
NCT00785954
The purpose of this study is to determine whether KAI-9803 is safe and effective in reducing infarct size in subjects with ST elevation myocardial infarction (heart attack) undergoing a percutaneous coronary intervention (PCI). A select number of sites will also participate in a substudy where eligible patients will undergo an additional procedure;cardiac magnetic resonance imaging.
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.
NCT00206856
To determine the clinical utility of using the Triage® BNP Test to guide therapy in outpatients with heart failure
NCT00271154
Heart failure is a progressive disease that decreases the pumping action of the heart. This may cause a backup of fluid in the heart and may result in heart beat changes. When there are changes in the heart beat sometimes an implantable heart device is used to control the rate and rhythm of the heart beat. The purpose of the REVERSE clinical trial is to determine whether pacing in both the left and right ventricles using Cardiac Resynchronization Therapy (CRT) can help slow the progression of heart failure in people who have mild or previous symptoms and poor heart pumping function. This kind of therapy has previously been shown to reduce symptoms and improve exercise capacity in people with more advanced forms of heart failure.
NCT00180466
PROSPECT is a multi-center prospective registry of Acute Coronary Syndromes (ACS) patients with single or double vessel coronary artery disease. Approximately 700 patients with ACS will be enrolled into the study at sites in the United States and European Union.
