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Effect and mechanism of combined proton pump inhibitors and rifaximin treatment in functional dyspepsia patients

Effect and mechanism of combined proton pump inhibitors and rifaximin treatment in functional dyspepsia patients

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2300069313
Enrollment
Unknown
Registered
2023-03-13
Start date
2023-03-18
Completion date
Unknown
Last updated
2025-12-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Functional Dyspepsia

Interventions

the intervention group (the combination of propton pump inhibitors with rifaximin):Rifaximin 1200 mg given at 400 mg three times per day for 2 weeks and standard dose propton pump inhibitors once dail
the control group (propton pump inhibitors):Standard dose propton pump inhibitors once daily for 4 weeks
Healthy control:None

Sponsors

Gastroenterology Department of Peking University Third Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Inclusion Criteria for FD Subjects: 1. Aged 18-65 years; 2. Complained of epigastric pain, epigastric burning, postprandial fullness or early satiation for over 6 months, symptoms should have been active in the past 3 months and met the Rome IV criteria. Symptoms should be severe enough to affect usual activities or to prevent finishing a regular sized meal; and no evidence of organic, systemic, or metabolic disease likely to explain these symptoms on routine investigations (including at endoscopy); one or both of the following symptoms at least 1 day per week: epigastric pain or epigastric burning; one or both of the following symptoms at least 3 days per week: postprandial fullness or early satiation. Inclusion Criteria for Healthy controls: 1. Aged 18-65 years; 2.No gastrointestinal symptoms and normal bowel movements.

Exclusion criteria

Exclusion criteria: 1. Patients who were found to have gastrointestinal organic diseases detected by endoscopy or digestive tract surgery history were excluded; 2. Patients with severe heart, liver, lung, kidney, blood, endocrine, and nervous system diseases, or severe respiratory tract, digestive tract, urinary tract infections or mental disorders will temporarily stop entering treatment until professional clinicians access their conditions; 3. Pregnant or lactating women and people who are preparing for pregnancy within the next 3 months will also be excluded; 4. Patients who were taking antibiotics, immunosuppressant or probiotics within 3 months, acid suppression drugs within 8 weeks; 5. Patients who were taking prokinetic agents more than 3 days during the past 2 weeks, non-steroidal anti-inflammatory drugs, bile acid sequestrants or bile acid sequestrants within 2 weeks will not be eligible for participation; 6. People with allergic diseases, or who were taking antihistamines, mast cell stabilizers or other antiallergic drugs will be excluded; 7. Patients or their first-degree relatives found to have a history of type 1 diabetes, celiac disease, inflammatory bowel disease, psoriasis, or other rheumatic immune system disorders will be excluded; 8. Patients with history of abdominal surgery (except for appendectomy or splenectomy) will be excluded; 9. Patients who firmly report rifaximin or rifamycin allergy will not participate, as it is possible to be randomized to the rifaximin group; 10. Patients who have a history of long-term alcohol consumption (more than 5 years, equivalent to ethanol amount >= 40 g/d, male >= 20 g/d) or heavy alcohol consumption (ethanol amount > 80 g/d) within 2 weeks will be exclude.

Design outcomes

Primary

MeasureTime frame
symptom relief rate;

Secondary

MeasureTime frame
the response rate;Gastrointestinal symptoms;Duodenal eosinophil counting and mucosal immune characteristics;the duodenal microbiome;the oral microbiome;the scales for emotional evaluation;negative lactulose hydrogen methane breath test;the oral microbiome;

Countries

China

Contacts

Public ContactDuan Liping

Peking University Third Hospital

duanlp@bjmu.edu.cn+86 139 0100 9183

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026