
Empirical Rescue Therapies of Helicobacter Pylori Infection
Functional DyspepsiaScarred Peptic UlcerThe increase of antibiotic resistance to H. pylori causes failure of treatment. Furazolidone, amoxicillin and tetracycline are good candidates for rescue therapy since resistance to these three antimicrobials was rare. It is necessary to assess the efficacy and safety of these four bismuth-containing quadruple regimens with above antibiotics as empirical rescue therapies for H. pylori eradication.

Treatment of Abdominal Distension by Biofeedback - a Randomized Controlled Trial
Irritable Bowel SyndromeDyspepsiaBackground: Abdominal bloating is a frequent and bothersome complaint in patients with functional gut disorders without satisfactory treatment to date. Recent data from our laboratory indicate that abdominal distention in these patients is produced by abdomino-phrenic dyssynergia: diaphragmatic contraction associated with abdominal wall relaxation (particularly the internal oblique). In analogy to other clinical situations (e.g. functional outlet obstruction, rumination or aerophagia) behavioral treatment by means of biofeedback might be equally effective in these patients. The investigators hypothesized that abdomino-phrenic coordination and abdominal distention can be controlled by biofeedback techniques. Aim: to prove the efficacy of behavioural treatment using biofeedback techniques for abdominal distension. Randomization: Patients will be randomized into biofeedback and placebo groups. Intervention. Biofeedback: patients will be taught to control abdominothoracic muscular activity by bio-feedback using online electromyography information. Placebo: patients will be given a pill containing placebo medication. Interventions will be delivered in 3 sessions (20 min each) over 10-day period . Measurements: Sensation of abdominal distension will be assessed by means of graphic rating scales graded from 0 (no perception) to 6 (very intense sensation). The activity of the abdomino-thoracic muscles will be recorded. Abdominal distension will be measured by a metric tape fixed to a non-stretch belt placed over the umbilicus. Outcomes: Primary outcome: Change in sensation of abdominal sensation. Secondary outcomes: a) changes in thoraco-abdominal activity of the muscular walls; activity of thoraco-abdominal muscles (intercostals, diaphragm, external oblique, internal oblique, upper rectus, lower rectus) will be measured by electromyography; b) changes in girth; abdominal girth will be measured using a nonstretch belt (48mm wide) that is placed over the umbilicus. The overlapping ends of the belt will be adjusted carefully with two elastic bands to adapt constantly to the abdominal wall.

To Verify the Efficacy of Z-338 in Subjects With Functional Dyspepsia
Functional DyspepsiaThe purpose of this study is to verify the superior efficacy of Z-338 to placebo in subjects with Functional Dyspepsia, focusing on the assessment of subjective symptoms.

Lansoprazole Versus Mosapride for Functional Dyspepsia
Functional DyspepsiaEpigastric Pain Syndrome1 moreFunctional dyspepsia is a common symptom complex with significant impact on quality of life. There is no standard treatment for functional dyspepsia but therapeutic efficacy of proton pump inhibitor (PPI) and prokinetic agent have been proved in subsets of patients. This study has two aims: first is to compare the therapeutic efficacy of lansoprazole (a PPI) and mosapride (a prokinetic agent) for functional dyspepsia second is to investigate whether different subgroups of functional dyspepsia (e.g., epigastric pain syndrome and postprandial distress syndrome) respond differently to PPI and prokinetic agent.

Nexium Dyspepsia/AST
Gastrointestinal DiseaseSigns and Symptoms2 moreThe aim is to evaluate if the resolution of upper abdominal symptoms (pain or burning) during an acid suppressive test trial of esomprazole given daily for 7 days predicts symptoms resolution at the end of a subsequent treatment period of 7 weeks.

Randomized Controlled Trial of Acupuncture for Functional Dyspepsia
Functional DyspepsiaThe purpose of the study is to testify the efficacy of treating functional dyspepsia with acupuncture, and provide evidence for the hypothesis that "Acupuncture effect is based on meridians, and gathering of meridian Qi is the key point."

The Efficacy of Imipramine in Treatment of Refractory Functional Dyspepsia
Functional Gastrointestinal DisorderThe aim of this study is evaluate the efficacy of Imipramine, a tricyclic antidepressant, in treatment of functional dyspepsia. This is a double blind randomised placebo controlled trial in which consecutive patients with diagnosis of functional dyspepsia will be studied. After exclusion of organic cause of dyspepsia by endoscopy, these patients will be randomly assigned to either imipramine or placebo. All the patients will enter an additional 4 weeks of drug withdrawal phase after the initial 12 weeks of study drug treatment. They will be evaluated for treatment response, which is defined as satisfactory relief of dyspeptic symptoms at the end of 12-week treatment.

Proton Pump Inhibitor Treatment Stop
DyspepsiaThe purpose of this study is to determine how many chronic users of antisecretory medication can stop after a test for a bacteria associated with peptic ulcer disease. This is evaluated in a discontinuation trial.

To Evaluate the Efficacy of Z-338 in Subjects With Functional Dyspepsia
Functional DyspepsiaTo Evaluate the efficacy of Z-338 in subjects with Functional Dyspepsia, focusing on the assessment of subjective symptoms in order to further determine the optimal dosage and efficacy parameters for PhaseIII clinical trials.

Itopride in Functional Dyspepsia:a Dose Finding Study
Functional DyspepsiaThis study aims to determine the efficacy and optimal dose of the prokinetic itopride for the treatment of patients with functional dyspepsia. The study will test in patients with functional dyspepsia the hypothesis that itopride is superior to placebo with regard to the improvement of symptoms.