Dyspepsia

21

Review clinical trials related to Dyspepsia. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Famotidine and Antacids for Treatment of Dyspepsia

The aim of this study is to compare intravenous famotidine, an H2 receptor antagonist, and Maalox/ Mylanta, an oral antacid, in treatment of dyspepsia in the emergency department. The goal of this study is to reduce patients' pain based on the verbal numerical pain scale. The anticipated outcome is for pain levels in both groups to decrease. It is expected that antacids will improve symptoms more quickly and to a greater degree within an hour of taking medication based on the results of similar studies.

Participants needed: 80
Trial details
Phase: Phase 4Age: 18+Biological sex: AllType: InterventionalSponsor: Stony Brook UniversityUpdated: Jun 2, 2026Locations: 1
Eligibility criteria

Subject Age ≥ 18 years of age [+2]

Hypersensitivity to an ingredient in Maalox/ Mylanta or Famotidine [+7]

Status: Not yet recruiting

Effect of Digestive Enzymes as Add on Therapy on Patients With Functional Dyspepsia.

The goal of this clinical trial is to assess the effect of digestive enzymes in improving dyspeptic symptoms in patients with functional dyspepsia. It will also assess about the safety of drug by recording the patient reported adverse events. The main questions it aims to answer are: Does drug digestive enzymes has any effect on patients with functional dyspepsia? What medical problems do participants have when taking drug digestive enzymes? Researcher will compare drug digestive enzymes to a control group taking standard first line treatment only. Participants will: Take drug digestive enzymes 325 milligrams 3 times daily, every day for 4 weeks along with standard first line treatment. A second group will be taken as control arm who will be kept on standard first line treatment only for 4 weeks. They will visit the hospital 2 weekly, and their symptoms will be assessed by a 5-point Likert Scale at baseline, week 2 and 4. Additionally, patient reported adverse events will be documented.

Participants needed: 120
Trial details
Phase: Phase 4Age: 18-70Biological sex: AllType: InterventionalSponsor: Rakibul MostafaUpdated: May 11, 2026Locations: 1
Eligibility criteria

Age 18 years or more [+1]

Structural lesion in endoscopy and positive H. pylori status [+5]

Status: Recruiting

Vonoprazan-based Versus Esomeprazole-based Triple Therapy for Helicobacter Pylori Eradication

The goal of this clinical trial is to compare the efficacy and safety of vonoprazan-based levofloxacin-containing triple therapy with esomeprazole-based levofloxacin-containing triple therapy for eradication of Helicobacter pylori infection in adults with dyspepsia. The main questions it aims to answer are whether vonoprazan-based triple therapy achieves a higher eradication rate of H. pylori, whether it provides greater improvement in dyspeptic symptoms, and what adverse effects are associated with each regimen. Researchers will compare the two treatment regimens to determine which is more effective for H. pylori eradication. Participants with confirmed H. pylori infection will be randomly assigned to receive either vonoprazan-based or esomeprazole-based triple therapy for 14 days. Four weeks after completion of therapy, participants will undergo repeat stool antigen testing to assess eradication. Drug compliance, adverse effects, and dyspeptic symptom scores will be recorded during follow-up. Participants with endoscopic mucosal lesions at baseline will undergo follow-up endoscopy for reassessment.

Participants needed: 80
Trial details
Phase: Phase 4Age: 18+Biological sex: AllType: InterventionalSponsor: Bangabandhu Sheikh Mujib Medical University, Dhaka, BangladeshUpdated: Apr 22, 2026Locations: 2
Eligibility criteria

Age ≥ 18 years [+2]

Treatment with a proton pump inhibitor, H2-receptor antagonist within the last 2... [+12]

Status: Recruiting

Domperidone in Treating Patients With Gastrointestinal Disorders

This phase III trial studies how well domperidone works in treating patients with gastrointestinal disorders. Domperidone may help control chronic gastrointestinal disorders and their symptoms, such as pain, bloating, and nausea and vomiting, by stimulating contraction of the stomach to increase its ability to empty itself of food.

Participants needed: 200
Trial details
Phase: Phase 3Age: 16+Biological sex: AllType: InterventionalSponsor: M.D. Anderson Cancer CenterUpdated: Apr 13, 2026Locations: 1
Eligibility criteria

Patients with GI disorders who have failed standard therapy [+13]

Patients with the following cardiac diagnoses: ventricular tachycardia or fibril... [+8]

Status: Recruiting

Symptoms and Quality of Life in Patients With Heterotopic Gastric Mucosa (HGM)

The goal of this observational study is to learn whether heterotopic gastric mucosa (HGM) in the upper esophagus is associated with swallowing difficulties (dysphagia) in adults undergoing a medically indicated gastroscopy. The main questions it aims to answer are: * Is the presence of HGM associated with dysphagia? * Is the presence of HGM associated with dyspepsia and reduced health-related quality of life? Among participants reporting dysphagia, what is the distribution of oropharyngeal versus esophageal dysphagia, and is this related to the presence of HGM? If there is a comparison group: Researchers will compare participants with endoscopically confirmed HGM to participants without HGM to determine whether dysphagia, dyspepsia symptoms, and quality-of-life measures differ between groups. Participants will: Complete pseudonymised questionnaires about dysphagia, dyspepsia symptoms, and quality of life before the gastroscopy. Undergo the medically indicated gastroscopy as planned; the endoscopist will assess whether HGM is present based on the endoscopic appearance, and routine endoscopy findings will be documented.

Participants needed: 721
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Knappschaft Kliniken GmbHUpdated: Apr 14, 2026Locations: 1
Eligibility criteria

Planned upper gastrointestinal endoscopy (gastroscopy) for clinical reasons (any... [+3]

Previously known heterotopic gastric mucosa (HGM) [+14]

Status: Not yet recruiting

Predicting Peptic Complications Using H. Pylori Serology and Gastric Ultrasound

This observational study aims to evaluate whether combining a simple blood test (H. pylori serology) with a non-invasive abdominal ultrasound can accurately predict severe complications in patients with peptic ulcer disease (PUD). Peptic ulcer complications, such as stomach bleeding or perforation, are serious and typically require an invasive procedure called an upper endoscopy for diagnosis and treatment. Researchers want to find out if these two non-invasive tests can be used together to create a reliable risk-scoring system. This system would help doctors quickly identify which patients are at a high risk for complications and need an urgent endoscopy, compared to those who are at a lower risk and can be safely monitored without the invasive procedure. The study will include adult patients presenting with stomach symptoms (like pain, nausea, or heartburn), as well as those with suspected or confirmed peptic ulcer disease. Participants will provide a blood sample to check for H. pylori antibodies and undergo a standard, painless abdominal ultrasound to examine the thickness of their stomach wall. An upper gastrointestinal endoscopy will be performed if it is clinically necessary as part of the patient's standard medical care.

Participants needed: 230
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Assiut UniversityUpdated: Mar 9, 2026
Eligibility criteria

Adult patients (age ≥18 years) presenting with dyspeptic symptoms (epigastric pa... [+4]

Previous gastric surgery (gastrectomy, vagotomy). [+8]

Status: Recruiting

Functional Digestive Disorders Observatory

Functional digestive pathologies are defined by symptoms such as functional dyspepsia, gastroesophageal reflux, irritable bowel syndrome, gastroesophageal reflux, functional constipation, functional diarrhea, functional bloating, the opioid-induced constipation and fecal incontinence, without organic substratum. These diseases are very common in the general population (20%) and represent the first cause of consultation in city gastroenterology. The pathophysiology of these functional disorders is complex and often multifactorial: disturbances in digestive motility, altered visceral sensitivity, sphincter dysfunction, post-surgery, intestinal inflammation, dysbiosis, and impairment of the gut-brain axis. For example, it has been shown that one in four patients with inflammatory bowel disease in confirmed remission report digestive symptoms consistent with a functional bowel disorder, suggesting a possible pathophysiological continuum between these two conditions. The objective of this study is to collect prospective clinical and tests data and a biological collection from biological samples (digestive biopsies, blood, urine and fecal samples) collected as part of the standard care. This collection could identify diagnostic or prognostic markers of the therapeutic response.

Participants needed: 2,000
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: University Hospital, RouenUpdated: Jan 8, 2026Locations: 1Duration: 10 Years
Eligibility criteria

Patients over 18 years of age; [+4]

Person deprived of liberty by administrative or judicial decision or major prote... [+1]

Status: Not yet recruiting

Effect of H. Pylori Eradication on The Improvement of Gastrointestinal Symptoms

This study aims to evaluate the effect of Helicobacter pylori eradication on gastrointestinal symptoms in adult patients. H. pylori infection is a common cause of dyspepsia and other upper gastrointestinal complaints. The trial will assess whether successful eradication therapy leads to significant improvement in symptoms compared to baseline. Adult patients diagnosed with H. pylori infection will receive standard eradication treatment, and symptom changes will be monitored using validated questionnaires over a defined follow-up period.

Participants needed: 100
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Amany Usama Ahmed ArafaUpdated: Dec 16, 2025
Eligibility criteria

Adults aged 18 years and older. [+4]

Age less than 18 years. [+6]

Status: Recruiting

Saccharomyces Boulardii Combined With Bismuth Quadruple Therapy for Helicobacter Pylori Rescue Treatment

This study aims at evaluating efficacy and safety of Saccharomyces boulardii combined with bismuth-containing quadruple Therapy versus bismuth-containing quadruple Therapy(bismuth#esomeprazole#tetracycline and furazolidone) in H. pylori rescue therapy. It is hypothesized that Saccharomyces boulardii combined with bismuth-containing quadruple Therapy is superior to bismuth-containing quadruple Therapy. Patients with confirmed failure of H. pylori eradication will be randomized to one of the treatments described above. At week 6 follow-up visits, a urea breath test#rapid urease test or helicobacter pylori stool antigen test will be performed to confirm eradication.

Participants needed: 1,248
Trial details
Phase: Phase 4Age: 18-75Biological sex: AllType: InterventionalSponsor: Yongquan ShiUpdated: Dec 2, 2025Locations: 1
Eligibility criteria

Age between 18~75, both gender. [+2]

Patients who have previously used tetracycline and furazolidone antibiotics to e... [+13]

Status: Recruiting

The Difference in Carbon Footprint Between Diagnostic Upper GI Endoscopy in Dyspeptic Patients Versus Therapeutic Upper GI Bleeding

The goal of this observational study is to learn about the carbon footprint produced from diagnostic upper GI endoscopy in patients with dyspepsia and therapeutic upper GI endoscopy in patients with non-variceal upper GI bleeding. The main question it aims to answer is: • How much carbon footprint is generated from upper GI endoscopy Participants are already receiving diagnostic and therapeutic upper GI endoscopy as part of their regular medical care for dyspepsia and non-variceal upper GI bleeding, respectively. The carbon footprint generated from this treatment process is examined.

Participants needed: 75
Trial details
Age: 20-80Biological sex: AllType: ObservationalSponsor: King Chulalongkorn Memorial HospitalUpdated: Dec 3, 2025Locations: 2
Eligibility criteria

Patients with dyspepsia or non-variceal upper GI bleeding [+2]

Platelet < 50,000 [+5]

Status: Recruiting

Visible Abdominal Distension

Background. Abdominal distention is produced by an abnormal somatic postural tone. The authors developed an original biofeedback technique. In a randomized, placebo-controlled trial the authors demonstrated the superiority of biofeedback over placebo for the treatment of abdominal distention. However, the technique is technically complex and unpractical. Aim. To prove the efficacy of a noninstrumental biofeedback technique, transmitted by a standard training program, for the treatment of abdominal distension in different centers. Selection criteria. Episodes of visible abdominal distension. Intervention. Patients will be randomized into biofeedback and placebo groups. Three sessions of either biofeedback or placebo intervention will be performed during the first 3 weeks of the intervention period. Biofeedback: Patients will be taught to control abdominal and thoracic muscular activity by providing instructions using an original video support. In each center one operator will receive a standard training on how to deliver the noninstrumental biofeedback treatment. Patients will be instructed to perform the same exercises before and after breakfast, lunch and dinner during the 4-week intervention period. Placebo: Sham measurements of abdominal and thoracic motion will be performed, and a pill of placebo containing 0.21 g glucose will be administered; patients will be instructed to take a pill of placebo before breakfast, lunch and dinner during the 4-week intervention period.

Participants needed: 100
Trial details
Age: 18-80Biological sex: AllType: InterventionalSponsor: Hospital Universitari Vall d'Hebron Research InstituteUpdated: Oct 31, 2025Locations: 7
Eligibility criteria

episodes of visible abdominal distension triggered by meal ingestion

organic cause detected by clinical work-up [+2]

Status: Recruiting

Exposure-Based CBT for Avoidant/Restrictive Food Intake in Functional Dyspepsia

Randomized controlled trial of an exposure-based behavioral treatment (CBT) in adults with functional dyspepsia who meet criteria for avoidant/restrictive food intake disorder (ARFID) with weight loss.

Participants needed: 50
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Massachusetts General HospitalUpdated: Sep 25, 2025Locations: 1
Eligibility criteria

Age at least 18 years at screening visit [+9]

Inability to provide informed consent [+14]

Status: Recruiting

A Study of Chios Mastic Water in Dyspepsia

Chios mastic is a natural product with strong antimicrobial, anti-inflammatory and antioxidant properties, and well-established benefits for dyspeptic disorders. The aim of the present study is to investigate the effectiveness of a natural aqueous extract of Chios mastic (mastic water), a by-product of Chios mastic processing, in the management of dyspepsia. This will be a 3-month randomized double-blind controlled clinical trial in adults with dyspepsia. Participants will be blindly randomized to an intervention group, which will receive 600 mL/d of a carbonated beverage enriched with Chios mastic water (0.2%), or a control group, which will receive 600 mL/d of an identical placebo beverage with no active ingredients. Participants will be evaluated in terms of anthropometric indices, lifestyle habits, severity of dyspepsia-related gastrointestinal symptoms, quality of life, as well as biochemical markers, both pre- and post-intervention.

Participants needed: 60
Trial details
Age: 30-60Biological sex: AllType: InterventionalSponsor: Harokopio UniversityUpdated: Sep 15, 2025Locations: 1
Eligibility criteria

Age 30-60 years old. [+2]

Presence of chronic diseases (e.g. diabetes mellitus, cancer, cardiovascular, he... [+6]

Status: Recruiting

High Resolution Gastric Mapping and Gastroduodenal Manometry

Dyspepsia is a common problem attributed to gastric sensorimotor dysfunctions ie, delayed, or less frequently rapid gastric emptying (GE), impaired gastric accommodation, and increased gastric sensation. Therapeutic options manage symptoms, and there is no FDA approved medical therapy for dyspepsia. There is a need for better objective understanding of sensorimotor dysfunction in dyspepsia, as well as noninvasive, efficacious, safe, and inexpensive treatments for dyspepsia. The purpose of this research is to identify disturbances and characterize phenotypes in patients with functional dyspepsia, and to assess the correlations between symptoms (during the manometry and in daily life), gastric emptying, electrical activity (BSGM), and pressure activity (manometry).

Participants needed: 100
Trial details
Age: 18-80Biological sex: AllType: InterventionalSponsor: Mayo ClinicUpdated: Aug 19, 2025Locations: 1
Eligibility criteria

Symptoms consistent with functional dyspepsia as defined by the ROME IV criteria... [+1]

Known cardiac arrhythmia or major ECG abnormalities, i.e. cardiac conduction dis... [+5]

Status: Not yet recruiting

Exocrine Pancreatic Insufficiency and Functional Dyspepsia

The goal of this observational study is to learn about the prevalence of exocrine pancreatic insufficiency in patients with functional dyspepsia . . The main questions it aims to answer are: What is the prevalence of exocrine pancreatic insufficiency (EPI) in patients with functional dyspepsia? Wich are the clinical characteristics associated with (EPI) in patients with functional dyspepsia? Patients diagnosed with functional dyspepsia will undergo an evaluation of clinical symptoms and fecal elastase determination. In those with fecal elastase levels below 100 µg/g, an endoscopic ultrasound and other assessments will be performed to define the cause of exocrine pancreatic insufficiency (EPI).

Participants needed: 65
Trial details
Age: 18-65Biological sex: AllType: ObservationalSponsor: Maria Marta PiskorzUpdated: Aug 8, 2025
Eligibility criteria

Patients over 18 years of age diagnosed with functional dyspepsia based on Rome...

Pregnancy or lactation [+4]

Status: Recruiting

A Prospective Multicentre Real-world Assessment of the Efficacy of Danning Tablets in Alleviating Digestive Symptoms

The goal of this observational study is to evaluate if Danning Tablets are effective in alleviating dyspepsia in patients with any of the following digestive symptoms: upper abdominal pain, bloating, loss of appetite, acid reflux or constipation. The main questions it aims to answer are: How effective are Danning Tablets for patients with indigestion symptoms? What are the impact factors (e.g. severity of conditions, demographic features, dose and length of treatment etc.) of the efficacy of Danning Tablets for indigestion patients? Participants already taking Danning Tablets as part of their regular medical care for indigestion will take questionnaires by the end of two weeks and four weeks respectively from the start of their treatment.

Participants needed: 4,500
Trial details
Age: 18-75Biological sex: AllType: ObservationalSponsor: Shanghai Hutchison Pharmaceuticals LimitedUpdated: May 14, 2025Locations: 1
Eligibility criteria

Patients between 18 and 75 years old [+3]

Past history or comorbidity of malignant tumor [+6]

Status: Recruiting

Epidemiological Investigation of Helicobacter Pylori-infected Patients and the Effect of Eradication Treatment on Dyspepsia Symptoms

The objectives of this multicenter, prospective, observational study were to investigate the incidence of dyspeptic symptoms in patients with Helicobacter pylori (H. pylori) infection and to continuously follow up the remission of dyspeptic symptoms after H. pylori eradication, so as to provide reference for the clinical diagnosis and treatment strategies of patients with H. pylori infection and dyspeptic symptoms.

Participants needed: 2,242
Trial details
Age: 18-80Biological sex: AllType: ObservationalSponsor: Shanghai Jiao Tong University School of MedicineUpdated: Dec 30, 2024Locations: 26
Eligibility criteria

Male or female patients aged 18-80 years [+3]

Under 18 or over 80 years old [+6]

Status: Recruiting

The Clinical Course and Factors for the Progression of Uninvestigated Dyspepsia to Functional Dyspepsia

Dyspepsia is one of the most common gastrointestinal diseases. This disease was defined as predominant epigastric pain lasting for at least 1 month, which can be accompanied with other symptoms, such as epigastric fullness, and early satiety. Despite dyspepsia symptoms lasting for ≥1 month represented clinical problem, a longer duration of 6 months or more after first-onset symptom was required for the diagnosis of functional dyspepsia based on ROME IV criteria. It was unclear about the natural procession of first-onset dyspepsia to functional dyspepsia assessed by Rome IV or Asia criteria and possible factors associated with this progression.

Participants needed: 220
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Air Force Military Medical University, ChinaUpdated: Sep 26, 2024Locations: 1
Eligibility criteria

Patients aged ≥ 18 years old who had first-onset dyspepsia with one or more symp...

Known acute or chronic injury of liver or kidney [+6]

Status: Not yet recruiting

Clinical Study of De-Stress & Happy Gut Powder for Stress and Indigestion in Adults.

The current study focuses on clinical validation of efficacy of nutraceutical product in relieving stress and functional dyspepsia symptoms in adults for gut health. The effect of these nutraceuticals not only targets the physical symptoms but also enhances overall well-being. Improved digestive health leads to better nutrient absorption, which is essential for energy levels and immune function. Reduced stress levels contribute to better sleep quality, cognitive function, and emotional stability.

Participants needed: 81
Trial details
Age: 21-50Biological sex: AllType: InterventionalSponsor: Herbolab India Pvt. Ltd.Updated: Aug 23, 2024
Eligibility criteria

Male and female participants aged 21-50 years both inclusive [+5]

Inability to perform any of the assessments required for endpoint analysis [+9]

Status: Not yet recruiting

EFFICACY OF ORAL AROEIRA (Schinus Terebinthifolia Raddi) COMPARED TO OMEPRAZOLE IN DYSPEPPSIA

This is a prospective, randomized, double - blind study of 474 male and female volunteers with dyspeppsia diagnosed at the Oswaldo Cruz University Hospital Gastroenterology Outpatient Clinic from March 2025 to March 2027. Hypothesis: As a non-inferiority study, the hypothesis is that the use of oral Aroeira (Schinus terebinthifolia Raddi) for the treatment of participants diagnosed with functional dyspepsia efficacy not inferior to therapy based on the use of omeprazole.

Participants needed: 474
Trial details
Phase: Phase 3Age: 18-80Biological sex: AllType: InterventionalSponsor: Infan Industria Quimica Farmaceutica NacionalUpdated: Apr 29, 2024
Eligibility criteria

Nausea; [+7]

Status: Not yet recruiting

RELIEF-pathway in Patients With Upper Abdominal Pain

Upper abdominal pain (UAP) is a common symptom and frequently the reason to visit the hospital. The prevalence of epigastric pain in the Dutch population is estimated to be as high as 37%. Moreover, Dutch hospitals yearly record \>100.000 diagnoses related to UAP. In most patients, UAP can be attributed to symptomatic (functional) dyspepsia (FD), Irritable Bowel Syndrome (IBS) or uncomplicated gallstone disease (cholecystolithiasis), with a prevalence in the general population of 20-30%, 20%, and 6-9%, respectively. However, these conditions may have overlapping symptom patterns and generally affect similar populations. which contributes to ineffective (diagnostic) interventions. Patients are generally not aware of the similarity of symptoms and the poor outcome of some treatments. Education positively influences patients' self-management and health judgment. In a recent open-label, multicentre trial the effectiveness of web-based patients' education is applied to reduce overuse of upper gastrointestinal endoscopies in patients with dyspepsia. This study illustrated that an web-based education tool safely reduced 40% in upper gastrointestinal endoscopies. Lifestyle interventions (such as change of diet and/or physical activity) are widely incorporated in treatment programs for cardio-vascular diseases including diabetes mellitus and obesity. An web-based education tool on upper abdominal pain and other complaints combined with a lifestyle interventions for patients may be an effective treatment option for this large group of patients. This study investigates the potential of an individualized web-based education tool as intervention for patients with functional dyspepsia, irritable bowel syndrome and uncomplicated symptomatic cholecystolithiasis with the possibility to visit the Prevention and Lifestyle clinic (RELIEF pathway). The RELIEF pathway aims to reduce unnecessary health care utilization and, secondly, to maintain and improve quality of life by educating patients on lifestyle improvement.

Participants needed: 471
Trial details
Age: 18-70Biological sex: AllType: InterventionalSponsor: Radboud University Medical CenterUpdated: Aug 21, 2023
Eligibility criteria

Patients between 18 and 70 years old. [+4]

If the following alarm symptoms are reported in the referral letter by the GP: w... [+9]