There are about 6915 clinical studies being (or have been) conducted in Austria. 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.
Prospective, unmasked, randomized evaluation of the iStent in patients with primary open-angle glaucoma. Patients will be randomized to one of two groups: 1) iStent, or 2) medication.
Autoregulation is defined as the ability of a vascular bed to adapt its vascular resistance to changes in perfusion pressure. In the eye, several studies have reported that retinal blood flow is autoregulated over a wide range of ocular perfusion pressures. In the optic nerve head only few data are available. Large scale studies have shown that reduced ocular perfusion pressure is an important risk factor for the prevalence, the incidence and the progression of primary open angle glaucoma. Former studies that investigated ocular blood flow autoregulation only measured choroidal blood flow. For the optic nerve head only few data are available, although it seems likely that it underlies similar autoregulatory mechanisms. The primary goal of the present study is to gain more insight into these phenomena in humans. The present study aims to investigate the pressure/flow relationship as a measure for optic nerve head autoregulation during combined changes of intraocular pressure and arterial pressure. Intraocular pressure will be increased by the use of a suction cup technique, mean arterial pressure will be increased by squatting. During the whole procedure, optic nerve head blood flow will be measured continuously.
Prospective, unmasked, evaluation of the iStent in patients that have primary open-angle glaucoma (OAG). Stent implantation in one eye will be used for analysis, with medication added at 6 months, as required.
The purpose of this study is to determine the safety and efficacy of lenalidomide as a first line therapy in treating patients with B-cell Chronic Lymphocytic Leukemia. This study will compare the effects (good and bad) of lenalidomide with chlorambucil.
Patients who have completed the 16 weeks treatment of the CHEST-1 trial (study number 11348) will be asked to participate in this long term extension study with BAY63-2521. The aim of the long term study is to collect additional information to evaluate the safety and tolerability of BAY63-2521. Patients will be treated with open label medication on their individual optimal dose between 0,5 mg - 2,5 mg tid.
Comparison of ease and convenience of nasotracheal intubation with the use of the two indirect laryngoscopes, Airtraq or Glidescope, versus the traditionally used Macintosh laryngoscope.
This study randomly assigns patients with venous leg ulcers to receive standard therapy (compression) alone or compression plus Dermagraft(R). Dermagraft is a device containing live human fibroblasts grown on an absorbable Vicryl mesh. Patients are seen weekly until they heal or the 16-week treatment period is complete. Follow-up visits are conducted monthly for three months in order to assess patients for longer term safety.
Myelodysplastic and myeloproliferative Disease represent conditions with increased risk for pulmonary hypertension. However, the exact prevalence of pulmonary hypertension in these conditions is not known. The effects of pulmonary hypertension on the clinical picture and the symptoms of patients in these conditions needs also further exploration. This exploratory study is designed to describe the prevalence of pulmonary hypertension in the population with such hematologic diseases, and the stages of pulmonary hypertension as well its effect on exercise capacity at time of diagnosis.
Exercise-induced increase of the pulmonary arterial pressure may be an early sign of pulmonary arterial hypertension. It has been shown that patients with normal pulmonary arterial pressure at rest but elevated pulmonary arterial pressure during exercise have a decreased exercise-capacity and may have a worse prognosis compared to patients with normal pulmonary arterial pressure values at rest and during exercise. According to the currently used definition pulmonary hypertension can be diagnosed if the mean pulmonary arterial pressure is higher than 25mmHg at rest or 30mmHg during exercise. In this study patients with a risk for pulmonary arterial hypertension (connective tissue disease) and increased pulmonary arterial pressure values during exercise are receiving a therapy with a dual endothelin receptor antagonist - bosentan, a therapy established for pulmonary arterial hypertension. The therapy effect is than compared to the recorded changes before the introduction of this therapy.
Patients with moderate to severe renal impairment scheduled for a magnetic resonance imaging (MRI) scan and injection with a contrast agent, Primovist/Eovist, will be asked to participate. The administration of contrast agents that contain gadolinium such as Primovist/Eovist might increase a potential risk to develop a rare condition called nephrogenic systemic fibrosis (NSF) in patients with renal impairment. This study is to assess the potential risk to develop NSF in patients with renal impairment after the administration of Primovist/Eovist. Patients who are enrolled in this study will receive a Primovist/Eovist enhanced MRI scan which was prescribed by the referring doctor. After the MRI scan the patient will be included in a two year follow-up period to assess if signs or symptoms suggestive of NSF have appeared.