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We list hundreds of Clinical Trials about "Adenosine Receptor Antagonist Pipeline Insight 2018 Report Updated" on BioPortfolio. We draw our references from global clinical trials data listed on ClinicalTrials.gov and refresh our database daily.
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Previous research has identified adenosine triphosphate (ATP) as an important vasodilator that is released from red blood cells during exercise and exposure to hypoxic environments in adult humans. Further, older adults appear to have lower blood flow during both of these stressors and also have lower amounts of ATP released from their red blood cells. However, the contribution of ATP to vasodilation in response to exercise and hypoxia is currently unknown due to the lack of an...
The purpose of this study is to determine whether asthmatics have different adenosine receptor expression profiles than healthy controls. We hypothesize that asthmatics will have increased adenosine receptor expression versus control subjects. We also want to study the effects of allergen inhalation on adenosine receptor expression in asthmatics. We believe that adenosine receptor expression will be upregulated after allergen inhalation. Both hypotheses are being tested...
The endogenous nucleoside adenosine can induce various cardiovascular and neurohumoral effects by stimulation of specific adenosine receptors. taken together these effects protect against ischaemia-reperfusion injury of (myocardial)muscles and agsinst the development of atherosclerosis. Genetic variations in genes encoding for adenosine receptors or for enzymes involved in the formation or breakdown of adenosine could potentially modulate these effects. In this study, we aim to...
The aim of this study is to show whether rosuvastatin influences adenosine metabolism. Therefore we will determine whether rosuvasatin increases dipyridamole-induced vasodilation by increased adenosine receptor stimulation.
Caffeine is a widely used psychostimulant drug and acts as a competitive antagonist at adenosine receptors. Its effect is on neurons and glial cells of all brain areas. Chronic consumption of caffeine leads to tolerance which might be associated with an increased number of binding sites in the brain. In deep brain stimulation (DBS), the production of adenosine following the release of adenosine triphosphate (ATP) explains the reduction of in tremor. Binding of adenosine to aden...
Adenosine and AMP are substances normally present in the body. Adenosine is also given for the treatment of some heart rhythm problems and may be used to reduce heart damage during heart attacks. The problem in using adenosine is that it is taken up by cells and, therefore, very little of the adenosine we give by vein or in the artery actually reaches the tissue. We propose to use AMP as a way to improve delivery of adenosine. AMP is inactive by itself, but is converted to ...
Infusion of glucose-dependent insulintropic polypeptide (GIP) receptor antagonist and evaluation of effect of insulin secretion in healthy subjects.
Delinieation of GIP's effects during an oral glucose tolerance test (OGTT) in humans using GIP receptor antagonisation.
Ischaemic preconditioning (IP) describes the phenomenon that brief periods of ischaemia render the (myocardial) muscle more resistant to a subsequent more prolonged period of ischaemia and reperfusion. Animal studies have provided evidence that adenosine receptor stimulation is an important mediator of IP. As caffeine is an effective adenosine receptor antagonist already at concentrations reached after regular coffee consumption, we aimed to assess whether caffeine impairs IP i...
This study investigates the significance of adenosine and A2A receptors in human brown adipose tissue (BAT) in vivo. Using positron emission tomography (PET), perfusion and the density of A2A receptors will be measured in supraclavicular BAT and other tissues in healthy men. The investigators hypothesize, that adenosine can activate BAT, and that adenosine A2A receptor density changes when BAT is activated by cold exposure. Understanding the mechanisms of BAT activation and th...
The aim of this study is to investigate the effects of antagonising GIP after a meal on plasma levels of glucagon. 10 participants are going through four experimental days each, where they ingest a meal and afterwards receive infusions of either GIP receptor antagonist, GLP-1, GIP receptor antagonist + GLP-1 or placebo (saline) in a randomised order. The primary endpoint of the study is plasma levels of glucagon, which we hypothesize will decrease with infusion of GIP receptor ...
This is a phase 1/1b open-label, multicenter, dose-selection study of CPI-444, an oral small molecule targeting the adenosine-A2A receptor on T-lymphocytes and other cells of the immune system. This trial will study the safety, tolerability, and anti-tumor activity of CPI-444 as a single agent and in combination with atezolizumab, a PD-L1 inhibitor against various solid tumors. CPI-444 blocks adenosine from binding to the A2A receptor. Adenosine suppresses the anti-tumor activi...
Adenoscan® (adenosine) is an approved pharmacological stress agent indicated as an adjunct to thallium-201 myocardial perfusion scintigraphy in patients unable to exercise adequately. The investigational drug, regadenoson (CVT-3146) is a selective A2A adenosine receptor agonist, the receptor responsible for coronary vasodilation, and is being studied for potential use as a pharmacologic stress agent in myocardial perfusion imaging (MPI) studies. This study will compare the s...
The aim of the study is to report the pattern of uveitis in patients attending a tertiary referral center at the University hospital in Montpellier. The patients seen at the specialized consultation for uveitis between 2002 and first semester 2018 were included. Data about demography, clinical features and final diagnoses were collected and updated during the differenet visits. The medical records were restrospectively rewieved and analyzed.
RATIONALE: Diagnostic procedures, such as positron emission tomography (PET) using [18F]-labeled substance P antagonist receptor quantifier, may be effective in finding disease in patients with pancreatic cancer. PURPOSE: This phase I trial is studying how well a PET scan using [18F]-labeled substance P antagonist receptor quantifier works in finding disease in patients with pancreatic cancer.
The purpose of this study is to extend previous observations in animal models regarding the effects of adenosine in the release of cytokines to human subjects. We intend to accomplish this in two study protocols. In the first we will infuse intravenously adenosine and measure the plasma levels of inflammatory cytokines. In the second one, we will use a microdialysis technique to infuse intradermally small amounts of adenosine and will measure skin blood flow and will take a bio...
This phase II trial studies how well ARN-509 (androgen receptor antagonist ARN-509) works in treating patients with prostate cancer who are in active surveillance. Testosterone can cause the growth of prostate cancer cells. Hormone therapy using androgen receptor antagonist ARN-509 may fight prostate cancer by blocking the use of testosterone by the tumor cells.
The adenosine receptor is known for its anti-inflammatory actions and could therefore be a potential target in the treatment of sepsis and septic shock. Stimulation of the adenosine receptor could potentially lead to a decrease in inflammation and tissue damage. Under normal conditions adenosine is formed either by an intracellular 5`nucleotidase, which dephosphorylates AMP, or by the hydrolysis of S-adenosylhomcysteine by hydrolase. An alternative pathway of AMP degradations ...
This observational, retrospective, single-arm, multi-centre cohort study will use real-world data (RWD) to develop real-world evidence (RWE) of the safety and clinical effectiveness of the Pipeline™ Flex Embolization Device with Shield Technology™ in Australian patients that have received a flow diversion device to treat an intracranial aneurysm (IA). The medical records from 500 procedures completed at Gold Coast University Hospital in Queensland (QLD), Prince of Wales Hos...
The purpose of this study is to determine the dose of the GLP-1 receptor antagonist exendin(9-39) which blocks the insulinotropic action of synthetic GLP-1 by at least 95%.
This phase II trial studies how well androgen receptor antagonist ARN-509, abiraterone acetate, prednisone, degarelix, and indomethacin work in treating patients with prostate cancer that has spread from where it started to nearby tissue or lymph nodes before surgery. Androgen can cause the growth of tumor cells. Hormone therapy using androgen receptor antagonist ARN-509, abiraterone acetate, prednisone, degarelix, and indomethacin may fight prostate cancer by lowering the amou...
The purpose of this study is to assess the safety and tolerability of ocular administration of Topical Interleukin-1-Receptor Antagonist in healthy volunteers. Additionally, the PK of Interleukin-1-Receptor Antagonist will be assessed.
The purpose of this study is to determine the safety, tolerability and feasibility of an adenosine A2a receptor antagonist (PBF-509) during a phase I dose escalation trial in advanced or metastatic non-small cell lung cancer (NSCLC) patients
This is a randomized, double-blind, placebo-controlled, parallel-group forced up-titration study. Randomization will be stratified according to the patient's baseline serum sodium concentration (137-144 and
The purpose of this study is to assess the safety and effectiveness of the Pipeline™ Shield™ device in the treatment of unruptured or ruptured, wide-necked intracranial aneurysms.