View clinical trials related to Gastroesophageal Reflux.
Filter by:The purpose of this study is to compare the blood drug levels of two prescribed medications, immediate-release omeprazole 40 mg powder and delayed-release omeprazole 40 mg capsule to determine which drug is better absorbed in patients with a slow stomach emptying (gastroparesis). Delayed-release omeprazole has a protective coating to prevent the drug omeprazole from being neutralized by stomach acid. Immediate-release omeprazole has sodium bicarbonate (antacid) which neutralizes the stomach acid, eliminating the need for a protective coating. Immediate-release omeprazole suspension may have a more rapid pharmacokinetic profile and greater overall drug absorption in gastroparesis.
High Resolution Manometry (HRM) is a new advance in oesophageal measurement that permits the acquisition of pressure data through the entire length of the oesophagus over time via closely spaced sensors that continuously record the motor activity of the oesophagus. This allows not only contractile pressure to be measured, but also the coordination (proximal-distal) of contractions and the development of effective intra-bolus pressure (the force that drives bolus movement). The study hypothesis is that (1) there will be a progressive increase in peristaltic pressure and decrease in velocity as the subjects move from the upright, through the supine to the upside down position and (2) the increase in pressure will be most evident in the mid-oesophagus at the transition zone between the striated and the smooth muscle contractions.
Monitoring oesophageal pH provides a definitive diagnosis of patients with gastro-oesophageal reflux disease (GORD), especially those in whom the association between reflux and symptoms is uncertain and those under consideration for anti-reflux surgery. Standard ambulatory investigation is normally performed by naso-oesophageal catheter however this is associated with considerable discomfort and in turn altered behaviour which reduces reflux provoking activities. Furthermore results of catheter based ambulatory pH studies are compromised by the high variability of acid exposure in patients with suspected GORD. Prolonging pH measurements by the catheter-free Bravo™ system from 24 to 48 and 96hrs significantly improves the consistency (reliability) and reproducibility of diagnoses based on oesophageal acid exposure, as well as the ability to associate acid reflux to symptom episodes. This improves diagnosis especially in those with intermittent symptoms. However pH monitoring does not provide a direct assessment of the underlying pathophysiology. Incompetence of the oesophago-gastric junction (OGJ) related to disruption of its structure and function is considered to be the most important cause of GORD. A more relevant assessment of the reflux barrier may be its distensibility (i.e. the ease with which the OGJ is opened to allow retrograde passage of gastric contents); however this is not assessed by current clinical investigations. Endo-FLIP (Crospon Medical Devices) is a new tool which assesses OGJ structure and function, and appears to provide relevant information regarding its distensibility and competence. This study applies to using Endo-Flip to record OGJ distensibility and Bravo to record acid exposure and symptom association in patients with reflux symptoms. The variability of pH measurements and symptoms and diagnostic accuracy will be assessed over 96hrs. Endo-FLIP results will then be compared against Bravo. The outcome of post investigation therapy will then be compared with Endo-Flip and Bravo results to assess if baseline testing can predict the outcome of acid suppression therapy. Study Hypothesis 1. There is a positive, continuous association between OGJ distensibility measured by Endo-FLIP on % acid exposure assessed by prolonged Bravo pH monitoring 2. The results of Endo-FLIP and prolonged Bravo predict treatment outcome of a trial of proton pump inhibitor therapy
The purpose of this study is to find out how common diseases of the esophagus can cause chest pain. Gastroesophageal reflux disease (GERD), commonly known as heartburn, is a common cause of chest pain in patients that do not have heart problems. The study test is called PillCam Eso, it is a small, pill sized capsule that has a small camera inside it. The camera will take pictures of the esophagus and the stomach as it goes down. Findings of the PillCam Eso will be compared to findings during conventional upper endoscopy.
To investigate the effect of 20 mg esomeprazole daily for one week on gastric emptying of 500 ml beer, the consecutive blood alcohol levels, the gastroesophageal reflux and plasma levels of gastrin and CCK in a randomized, placebo-controlled, double-blinded manner in 16 healthy male volunteers. Hypothesis: The combined taking of esomeprazole and beer will inhibit gastric emptying as compared to the intake of beer alone. This will induce a delay of the ethanol absorption and of the consecutive blood ethanol concentrations. Gastric acid secretion after beer will be reduced after esomeprazole treatment. Therefore, gastroesophageal acid reflux will be reduced after the combined taking. We speculate that gastrin, but not CCK plasma levels, will be increased after the combined taking as compared to beer alone. Both, beer and PPIs, have stimulatory effects on gastrin release. However, the secretion of CCK from duodenal CCK-cells is inhibited when gastric emptying is prolonged.
The purpose of this study is to look at the improvement of a once a day dose of esomeprazole for reducing the signs and symptoms of infants with gastroesophageal reflux disease (GERD). This research study consists of a screening, open-label, and double-blind treatment withdrawal phase. The screening phase ensures the patient eligibility. No study medication is dispensed during the screening phase. During the open-label phase, patients are administered esomeprazole 2.5mg, 5.0mg or 10.0mg based on his/her weight. During the double-blind phase, the patients are administered either his/her open-label dose or placebo. Double-blind means neither the physician, parent, or patient will know if patient is taking esomeprazole or placebo. The patient will have an equal chance of receiving esomeprazole or placebo.
The primary objective of this study is to compare, the number of patients with heartburn and regurgitation symptom resolution after treatment with either rabeprazole 20 mg, esomeprazole 20 mg or esomeprazole 40 mg.
This is a continuation of a study that has already been completed in the division of gastroenterology (GI) looking at the effects of sleep medication zolpidem (Ambien) on subjects with Gastroesophageal reflux disease (GERD). That study looked at 16 subjects, 8 who had been diagnosed with GERD and 8 who did not have GERD (IRB Control #04S.41). All subjects previously had a PH probe completed in the division of GI at Thomas Jefferson University. An additional 8 subjects with GERD will be recruited to obtain more data to add to the previous study results. These subjects will undergo 2 sleep studies, one in which they will be given Ambien and one in which they will not.
It has been reported that Baclofen is an appropriate tool in the therapeutic management of Gastroesophageal Reflux Disease. To objectify gastroesophageal reflux combined pH-metry/impedance monitoring was applied to patients with persistent reflux-associated symptoms despite PPI-therapy (40mg esomeprazole for 2 weeks). After provement of pathological findings in the test PPI-dosage was escalated to double standard-dosage for another for weeks. In case of persistent symptoms another ph-metry/impedance monitoring was performed. In case of pathological findings additional baclofen was administered to the therapeutic regime. After 3 months another ph-metry/impedance monitoring was performed. At the time point of the tests a questionnaire was completed. Aim of the study was to evaluate the influence of high dosage PPI-therapy and additional baclofen in patients with persistent symptoms and objectified gastroesophageal reflux.
Recent data has suggested that GER (gastric reflux) may worsen after lung transplantation and potentially increase the risk of chronic rejection (CR) after lung transplantation. The purpose of this study is to look at how often GER occurs in the lung transplant population and examine how GER may change the immune system and cause CR. In this way, we would be able to better identify patients that may benefit from anti-reflux procedures.