Clinical Trials About "Urea" RSS

04:25 EST 15th December 2018 | BioPortfolio

We list hundreds of Clinical Trials about "Urea" on BioPortfolio. We draw our references from global clinical trials data listed on and refresh our database daily.

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We have published hundreds of Urea news stories on BioPortfolio along with dozens of Urea Clinical Trials and PubMed Articles about Urea for you to read. In addition to the medical data, news and clinical trials, BioPortfolio also has a large collection of Urea Companies in our database. You can also find out about relevant Urea Drugs and Medications on this site too.

Showing "Urea" Clinical Trials 1–25 of 152


Study to Evaluate 13 C Isotope Ratio Measurement for Urea Cycle Capacity Assessment

In this short-term study a method for the evaluation of the metabolic competency of the urea cycle in vivo will be assessed. In order to monitor the efficacy of new treatment options for patients with urea cycle disorders and to monitor the severity of the disease, a reliable and safe quantitative method for the measurement of the urea cycle flux is required. Urea synthesis will be evaluated by administering sodium [1-13C]-acetate and measuring subsequent incorporation o...

Study of Treatment and Metabolism in Patients With Urea Cycle Disorders

RATIONALE: The urea cycle is the process in which nitrogen is removed from the blood and converted into urea, a waste product found in urine . Urea cycle disorders are inherited disorders caused by the lack of an enzyme that removes ammonia from the bloodstream. Gene therapy is treatment given to change a gene so that it functions normally. Studying the treatment and metabolism of patients with urea cycle disorders may be helpful in developing new treatments for these disorders...

Urease Inhibitor Drug Treatment for Urea Cycle Disorders

The purpose of this study is to determine if acetohydroxamic acid (AHA) can prevent hydrolysis of urea by inhibiting the bacterial urease of gut flora of both healthy control adults as well as adults with urea cycle disorders.

Dose-Escalation Safety Study of HPN-100 to Treat Urea Cycle Disorders

The purpose of this study is to determine whether HPN-100 is safe and tolerable in subjects with Urea Cycle Disorders.

Dialysis Weaning in Intensive Care Units (Dialysis STOP)

Evaluation of daily urinary urea excretion, to guide Renal Replacement Therapy weaning, in Intensive Care Units. The objective is to show that remove the dialysis catheter, once daily urinary urea excretion is greater than 1.35 mmol/kg/d, would increase more than 3 days the number without dialysis catheters, and thus without dialysis, the first 28 days after insertion. Daily urinary urea excretion = urea (mmol/L) x diuresis (L/d) / weight (kg).

The Influence of Compression Stockings on Skin's Barrier Function at Patients With Chronic Venous Disease

The purpose of this study is to investigate if wearing of compression stockings influences the skin moisture. Conservative stockings are compared with urea containing compression stockings to find out if using urea prevents dehydration of the skin while wearing the urea compression stockings. Secondary aim was to find out if urea containing stockings increase the compliance to wear the compression stockings regulary by patients with diagnosed chronic venous insufficiency.

Treatment of Onychomycosis With Loceryl (Amorolfine) Nail Lacquer 5% Versus a Two-course Treatment With Urea 40% Ointment and Bifonazole Cream 1%

The main objective of this study is to compare subject adherence and satisfaction for two modes of treatment toenails infection (Onychomycosis) with Loceryl Nail Lacquer (Loceryl NL) and a Fungal Nail Treatment Set containing Urea 40% ointment (Urea) and Bifonazole cream 1% (Bifonazole).

Chronic Liver Disease in Urea Cycle Disorders

This is a pilot, cross-sectional study to assess liver stiffness and markers of hepatic injury, function, and fibrosis in patients with urea cycle disorders. This study will be conducted at 3 UCDC sites: Baylor College of Medicine in Houston, Texas, University of California San Francisco (UCSF), San Francisco, California and Seattle Children's Hospital, Seattle,Washington

Hemodialysis Blood Flow and Urea Clearance

The study purpose is to determine whether two different hemodialysis blood flow rates each meet national dialysis standards for urea clearance. Urea is used as the primary marker of dialysis adequacy. It is an experimental study with a crossover design of minimum 38 participants. Participants will be selected from the accessible pool of end-stage renal disease clients at the Vancouver Community Dialysis Unit. The participants will dialyse at each pre-determined blood flow rate ...

Study to Evaluate the Efficacy of HepaStem in Urea Cycle Disorders Paediatric Patients (HEP002)

The aim of the study is to assess the efficacy of HepaStem treatment in paediatric patients suffering from urea cycle disorders.

Human Heterologous Liver Cells for Infusion in Newborns and Infants With Urea Cycle Disorders

Urea cycle disorders are rare inherited diseases that generally have a poor outcome. In this study, neonates and infants with UCD will be included within the first 3 months of life and will be treated by repetitive application of human liver cells to reduce the risk of neurological deterioration while awaiting OLT.

Neutrophile Gelatinase Associated Lipocalin Evaluation in Septic Acute Kidney Injury

Acute kidney injury (AKI) is a major organ failure in septic shock. Current medical tests (serum creatinine and urea) cannot identify AKI until approximately 48 hours after it occurs. Neutrophil gelatinase-associated lipocalin (NGAL) may be able to predict ischemic AKI more effectively and faster than serum creatinine and urea levels. The purpose of this study is to take a blood sample from patients at admission and then at 24 and 48 hours after to test their plasma for NGAL a...

Arginine and Buphenyl in Patients With Argininosuccinic Aciduria (ASA), a Urea Cycle Disorder

Urea cycle disorders are inherited illnesses in which the body does not produce enough of the chemicals that remove ammonia, a byproduct of protein metabolism, from the blood stream. Elevated ammonia levels can lead to brain damage and death. Argininosuccinic aciduria (ASA) is a type of urea cycle disorder that is characterized specifically by high levels of argininosuccinic acid, a chemical involved in the urea cycle. People with ASA are at risk for serious liver damage, which...

A Randomized Controlled Trial Comparing Urea Loaded Nanoparticles to Placebo: a New Concept for Cataract Management

Cataract is the leading cause of vision loss and blindness in the world,surgery is the only available option to correct the problem and the major reasons for low cataract surgical rates include low demand because of fear of surgery, high cost of surgery and poor visual results but new research raises the hope that someday, cataracts could be cured with simple eye drops. This is the first report for preparing urea-loaded NPs eye drops for cataract therapy. Enhancement of the ure...

Pyridoxine and Topical Urea/Lactic Acid-Based Cream in Preventing Hand-Foot Syndrome in Patients Receiving Capecitabine for Breast Cancer or Other Cancer

RATIONALE: Pyridoxine (vitamin B6) and topical urea/lactic acid-based cream may prevent or lessen hand-foot syndrome caused by chemotherapy. It is not yet known whether giving pyridoxine with or without topical urea/lactic acid-based cream is more effective than topical urea/lactic acid-based cream alone or a placebo in preventing hand-foot syndrome. PURPOSE: This randomized phase III trial is studying pyridoxine and topical urea/lactic acid-based cream to see how well they wo...

Study of Glycerol Phenylbutyrate & Sodium Phenylbutyrate in Phenylbutyrate Naïve Patients With Urea Cycle Disorders

This is a randomized, controlled, open-label parallel arm study to assess the safety, tolerability, pharmacokinetics and ammonia control, of RAVICTI® as compared to NaPBA in urea cycle disorder subjects not currently or previously chronically treated with phenylacetic acid (phenylacetate; PAA) prodrugs. The study design will include: 1) Baseline Period; 2) Initial Treatment Period; 3) a RAVICTI only Transition Period 4) a RAVICTI only Maintenance Period; and 5) a RAVICTI only ...

Effects of Prednisolone and Infliximab on the Regulation of Urea Synthesis in Active Inflammatory Bowel Disease

Loss of total mass of muscles (catabolism) is a serious clinical problem in patients with active inflammatory bowel disease (IBD). The investigators have earlier shown that the liver plays an important role in this stress-catabolism by increasing the production of urea during the inflammatory process. The purpose of this study is to examine the effect of the anti-inflammatory drugs prednisolone and infliximab on the regulation of the urea synthesis in patients with active ...

13-C Urea Breath Test Using BreathID System and PPIs

Approximately 200 patients with suspected H.pylori will be tested with a 13C-Urea Breath Test (UBT) to ascertain H.pylori positive. 100 H.Pylori positive patients will tested before and after prescribed with one of the four selected Proton Pump Inhibitors (PPIs); 25 patients in each arm. This will provide information on the influence of PPIs on the UBT (Urea Breath Test). The aim of the trial is to observe the effect of different PPIs on the breath test and choose the optima...

Nitric Oxide Flux and Ureagenesis in Argininosuccinate Synthetase Deficiency (ASSD)(Citrullinemia I)

The urea cycle consists of a series of chemical reactions through which the body converts toxic waste- nitrogen into a substance called urea that can be disposed of easily. While disposal of nitrogen is the major function of the urea cycle, recent research has shown that some enzymes of the urea cycle are also important for the production of nitric oxide. Nitric oxide is an important chemical that has many functions in the human body including regulation of blood pressure. Thro...

Neurologic Injuries in Adults With Urea Cycle Disorders

Urea cycle disorders (UCDs) are a group of rare inherited metabolism disorders. The purpose of this study is to evaluate how UCD-related neurologic injuries affect adults with one of the most common types of UCD.

Longitudinal Study of Urea Cycle Disorders

Urea cycle disorders (UCD) are a group of rare inherited metabolism disorders. Infants and children with UCD commonly experience episodes of vomiting, lethargy, and coma. The purpose of this study is to perform a long-term analysis of a large group of individuals with various UCDs. The study will focus on the natural history, disease progression, treatment, and outcome of individuals with UCD.

PCORI Urea Cycle Disorder Study

Urea cycle disorders (UCD) are genetic disorders caused by the liver's inability to breakdown ammonia from proteins; ammonia then accumulates and is toxic to the brain. UCD cause brain damage and intellectual and developmental disabilities and even death. Treatment for UCD is either conservative management which involves a low-in-protein diet, drugs, and amino acid supplements or liver transplantation; each carry their own risks. This study aims to help patients to make decis...

Hepatic Urea Nitrogen Handling in Patients With NASH

The aim of the project is to investigate the metabolic regulation of the hepatic urea nitrogen handling and various cognitive functions measured by psychometric and neurophysiological tests before and after bariatric surgery in patients with non-alcoholic fatty liver disease (NAFLD).

The Efficacity of Hemodiafiltration Versus Hemofiltration for Renal Insufficiency During Intensive Care

The primary objective of this study is to compare the efficacity of hemodiafiltration and hemofiltration for decreasing plasma urea at 12h among intensive care patients. Secondary objectives include comparing urea clearance, filter duration, and %down-time, between the two techniques.

Aqueous Urea Concentration May be Related to Cataract Development

cataracts could be cured with eye drops. Some studies reported that in chronic renal failure, the occurrence of cataract is rare and the mechanism is unknown. The aim of this research is to describe correlation between urea concentration in the serum and aqueous humor and development of age related cataract.

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