There are about 1645 clinical studies being (or have been) conducted in Czech Republic. 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 main purpose of this study is to compare the effectiveness and safety of the re-treatment of smokers with varenicline with placebo for smoking cessation during the last 4 weeks of a 12 week course of treatment. The study will also assess whether smokers remain abstinent at Week 24 (12 weeks after the end of treatment) and Week 52 (40 weeks after the end of treatment).
The primary objective of this study is to assess the safety and efficacy of voclosporin as therapy in subjects with active noninfectious uveitis involving the intermediate and/or posterior segments of the eye (i.e., anterior + intermediate-, intermediate-, posterior- or pan-uveitis).
A phase III extension trial comparing the efficacy and safety of degarelix 3 month depot with the established therapy Zoladex 3 month implant in patients with prostate cancer.
The purpose of this study is to evaluate the long term safety and tolerability of fostamatinib in patients with rheumatoid arthritis (RA).
This randomized, multi-center double-blind, parallel-group, placebo-controlled study will evaluate the efficacy and safety of RO4917838 (bitopertin) in patients with sub-optimally controlled symptoms of schizophrenia. Patients, on stable treatment with antipsychotics, will be randomized to receive daily oral doses of RO4917838 or matching placebo for 52 weeks, followed by an optional treatment extension for up to 3 years.
This is a Phase 3 randomized, double blind, placebo controlled study of tasquinimod in asymptomatic to mildly symptomatic patients with metastatic CRPC to confirm the effect of tasquinimod on delaying disease progression compared with placebo. Approximately 1200 eligible patients with metastatic CRPC will be randomly assigned in a 2:1 ratio to 1 of 2 treatment groups: Treatment Group A (tasquinimod 0.25, 0.5, or 1 mg/day; n=800) or Treatment Group B (placebo; n=400).
The AVIS Study is a retrospective multicenter international study that aims to answer a series of questions on the use and performance of adrenal venous catheterization (AVS) for the diagnosis of primary hyperaldosteronism subtype. A questionnaire will be circulated among the centres that are internationally recognized and have published in the field of AVS and have agreed to participate in the study. The first aim of the AVIS study is to collect summary data on how AVS is being performed throughout the world to answer the following questions: - How many AVS studies haw been performed yearly from 2005 to 2010 at each center? - How many adrenal vein ruptures occurred during the AVS at each center?Has the rate of adrenal vein rupture been steady or has it changed over the 5 years? - How many centers use bilaterally simultaneous and how many use sequential AVS catheterization? - How many radiologists perform AVS at each center? - How many centers use a cosyntropin stimulation during AVS? - What is the percentage of PA patients in whom AVS is performed? - How many centres calculate the selectivity index? What is the minimum cutoff used? - How many centers calculate the lateralization index? What is the minimum cutoff used? - Are the AVS studies that are not bilaterally selective used for diagnosis? - How many centers calculate the controlateral suppression index and what is the minimum cutoff used? - What is the cost of AVS for the National Health System or Insurance and for patients? The second aim of the study is to calculate the rate of AVS studies that are selective and show lateralization of aldosterone excess at each center by applying predefined set of criteria for defining selectivity and lateralization. Data on the final diagnosis of the PA subtype will be gathered and used as reference to assess the performance of AVS using receiver operating characteristic curves analysis and the Youden index to determine the optimal cutoffs. A worksheet will need to be completed providing information on the following: Demography; Date of AVS;Baseline blood pressure (BP) values and serum K+;Dynamic test during the AVS if any; plasma aldosterone and cortisol concentration in the infra-adrenal inferior vena cava and in the right and left adrenal vein; diagnosis of PA subtype; treatment (adrenalectomy or pharmacological therapy); post-treatment BP and serum K+ values; concordance/discordance between imaging (CT or RM) and AVS.
This purpose of this study is to determine if bosutinib reduces the rate of kidney enlargement in subjects with autosomal dominant polycystic kidney disease (ADPKD) entering the study with a total kidney volume greater than or equal to 750 cc and eGFR greater than or equal to 60 mL/min/1.73m2.
The aim of the study was to compare the success rate of monocanalicular intubation versus bicanalicular silicone intubation in congenital nasolacrimal duct obstruction in children aged between 10 and 36 months.
The objective of the trial is to demonstrate that 2-3 times per week prophylaxis therapy with BAY81-8973 is superior to on-demand therapy with BAY81-8973 in patients with severe Hemophilia A. The hypothesis is that prophylaxis will result in fewer bleeds than on-demand treatment.