Clinical Course of Functional Dyspepsia and Factors Predicting Outcome in Patients Receiving Medication-based Treatment

June 7, 2026 updated by: Yanglin Pan, Air Force Military Medical University, China
Functional dyspepsia (FD) is one of most common chronic gastrointestinal disorders. Several types of drugs were demonstrated to be effective in reduction or remission of symptoms and severity of FD, including proton pump inhibitors (PPI), Tricyclic antidepressant and prokinetics. However, the clinical course of FD after taking medication-based treatment was unknown. Furthermore, 20-50% patients remained persistent or worsening of dyspepsia symptoms after treatment. Previous studies have suggested psychological factors (eg. anxiety, sleep disturbance) were related to less improvement of symptoms in natural clinical course. However, there is limited evidence in terms of clinical and psychological factors for less improvement in patients receiving medication treatment for dyspepsia.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
300

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Gansu
      • Lanzhou, Gansu, China
        • Lanzhou University Second Hospital
    • Shaanxi
      • Xi'an, Shaanxi, China, 710032
        • Xijing Hospital of Digestive Diseases
      • Xi'an, Shaanxi, China, 710032
        • The Second Affiliated Hospital of Xi'an Jiaotong University
      • Xi'an, Shaanxi, China, 710032
        • Xijing 986 Hospita

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Patients aged ≥ 18 years old who met criteria of functional dyspepsia defined by Rome IV were eligible for our study.

Description

Inclusion Criteria:

  1. age ≥18 years old
  2. Patients who met Rome IV criteria
  3. Normal upper endoscopy and abdominal ultrasonography within one year

Exclusion Criteria:

  1. Patients with local or systemic diseases which may cause dyspeptic symptoms:

    Known active peptic ulcer, cholecystitis, gallstone, gastrointestinal obstruction, gastroparesis, and etc.; Known acute or chronic injury of liver or kidney; Obvious hematological abnormality, or endocrine and metabolic diseases; Known malignancy; Obvious cardiovascular or cerebrovascular diseases (such as coronary heart disease, arrhythmia, cerebral infarction and etc.; Other conditions which may be associated with dyspeptic symptoms (such as NSAIDs associated dyspepsia)

  2. organ failure defined by Marshall standard
  3. severe psychiatric illnesses
  4. known malignancy
  5. pregnancy or lactation
  6. unable to provide consent
  7. suspected or identified bowel obstruction

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
score of 4 (slightly better) or 5 (much better) on a 5-point Likert scale assessing symptom improvement at 6 months after the initial visit
Time Frame: 6 months
A 5-point likert scale was used for accessing symptom relief. 1. Worse, 2,slightly worse, 3.same, 4.slightly better, 5.much better. A score of 4 or 5 was classified as relief response.
6 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
subtypes of functional dyspepsia
Time Frame: 6 months
functional dyspepsia was classified into three subgroups：(1) Postprandial Distress Syndrome, defined as Bothersome postprandial fullness or/and Bothersome early satiation. (2) Bothersome epigastric pain AND/OR Bothersome epigastric burning. (3) mixed syndrome, defined when postprandial distress syndrome and epigastric pain syndrome presented simultaneously.
6 months
Short Form of Nepean Dyspepsia Index (SF-NDI)
Time Frame: 1 day
The SF-NDI consists of 10 questions regarding the effects of dyspepsia symptoms ("stomach problems") on different aspects of life (tension, interference with daily activities, eating/drinking, knowledge/control, and work/study). Each response can be from 1 (not at all affected) to 5 (extremely affected), or 0 (N/A), for a total summed score out of 50.
1 day
Hospital anxiety and depression scale
Time Frame: 1 day
Anxiety and depression of patients are assessed by using Hospital Anxiety and Depression Scale.It contains 14 items (7 anxiety and 7 depression), which assess symptoms experienced during the past week on a 0-3 scale. A subscore of > 8 for depression or anxiety would indicate a clinical case.
1 day
Quality of Life scores assessed by Patient-reported outcomes measurement information system (PROMIS) Global-10 questionaire.
Time Frame: 1 day

Quality of Life scores assessed by Patient-reported outcomes measurement information system (PROMIS) Global-10 questionnaire. PROMIS Global-10 is a newly validated 10-question survey used to assess health care-related quality of life measures for the general population.

It's a 10-item patient-reported questionnaire in which the response options are presented as 5-point (as well as a single 11-point) rating scales. These scores are then standardized to the general population, using the "T-Score". The average "T-Score" for the United States population is 50 points, with a standard deviation of 10 points. Higher scores indicate a healthier patient and a better quality of life.
1 day
the change of Global Overall Symptom score (GOSS)
Time Frame: 1month, 3 months, 6 months,12 months
The GOSS consists of 10 cardinal items (epigastric pain, epigastric discomfort, Heartburn, acid regurgitation, upper abdominal bloating, belching, nausea, early satiety, postprandial fullness, other epigastric symptoms(eg. epigastric burning). Each item can be scored from 1 (no) to 7 (worst).
1month, 3 months, 6 months,12 months
Adequate relief rate
Time Frame: 1month, 3 months, 6 months,12 months
Patients had adequate relief of symptoms in the past 7 days.
1month, 3 months, 6 months,12 months
the change of Functional dyspepsia symptom diary (FDSD) score
Time Frame: 1month, 3 months, 6 months,12 months
The FDSD consists of 5 cardinal items (burning in the stomach, stomach pain, bloating, postprandial fullness, and early satiety) and 3 supplementary items (nausea, burping/belching rating, and burping/belching bother). Each item can be scored from 0 (no) to 10 (worst).
1month, 3 months, 6 months,12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Air Force Military Medical University, China

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 31, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 21, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 21, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 23, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 9, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 7, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • KY20222180-F-3

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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