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.

Study Overview

Study Type

Observational

Enrollment (Estimated)

4500

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 Backup

Study Locations

    • Zhejiang
      • Hangzhou, Zhejiang, China, 310009
        • Recruiting
        • the Second Affiliated Hospital Zhejiang University School of Medicine
        • Contact:
        • Contact:
          • Jianting CAI, Doctor of Medicine
          • Phone Number: +86 13805716757
          • Email: jtcai6757@163.com

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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients with dyspepsia symptoms taking Danning Tablets

Description

Inclusion Criteria:

  • Patients between 18 and 75 years old
  • Patients with at least one of the following symptoms: upper abdominal pain, bloating, loss of appetite, acid reflux or constipation
  • Patients already taking Danning Tablets as part of their regular medicine treatment for dyspepsia
  • Patients agree to sign the informed consent form

Exclusion Criteria:

  • Past history or comorbidity of malignant tumor
  • Comorbidity of severe systemic condition including cardiovascular, cerebrovascular, renal and hematopoietic system diseases
  • Past history of abdominal surgery (post pancreatic surgery, post subtotal gastrectomy; incomplete intestinal obstruction) or mental illness, mobility difficulty (e.g. long-term bed ridden)
  • Comorbidity of any unstable chronic or acute disease,which may impact the evaluation of treatment efficacy as determined by the research physician
  • Pregnancy or breastfeeding
  • Participation in other clinical trials within the past 3 months
  • Other circumstances determined as ineligible by the research physician

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Patients with dyspepsia symptoms taking Danning Tablets
  1. Patients between 18 and 75 years old;
  2. Patients with at least one of the following symptoms: upper abdominal pain, bloating, loss of appetite, acid reflux or constipation;
  3. Patients already taking Danning Tablets as part of their regular medicine treatment for dyspepsia;
  4. Patients agree to sign the informed consent form.
Danning Tablet is the only exposure in this observational study.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Dyspepsia symptoms responder rate post treatment
Time Frame: From enrollment to the end of 4 weeks post enrollment

A responder status is defined as patients reaching both a decrease of at least 50% regarding the Gastrointestinal Symptom Rating Scale (GSRS) score, and either symptom-free or markedly improved in the Global Patient Assessment (GPA) .

GSRS consists of 15 items for assessment of gastrointestinal symptoms. The 15 items include five symptom clusters: Reflux, Abdominal pain, Indigestion, Diarrhoea and Constipation. Each item is rated on a 7-point Likert scale. The reliability and validity of the GSRS are well-documented. GSRS can be self-administered in approximately 3~5 minutes.

The GPA asks patients the question "Please rate the strength of your upper abdominal complaints in the past 14 days. Please select how much they have changed compared to the condition at the onset of treatment: symptom-free, markedly improved, slightly improved, unchanged, worse".

From enrollment to the end of 4 weeks post enrollment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
GPA responder rate
Time Frame: From enrollment to the end of 2 weeks and 4 weeks post enrollment
A responder status is defined as patients reaching either symptom-free or markedly improved in the GPA.
From enrollment to the end of 2 weeks and 4 weeks post enrollment
GSRS score responder rate
Time Frame: From enrollment to the end of 2 weeks and 4 weeks post enrollment
A responder status is defined as patients reaching a decrease of at least 50% regarding the GSRS score.
From enrollment to the end of 2 weeks and 4 weeks post enrollment
Abdominal pain rating
Time Frame: From enrollment to the end of 2 weeks and 4 weeks post enrollment
Abdominal pain rating is defined as the multiplication of symptom frequency and severity rates. Abdominal pain frequency and severity are recorded in patient diary card. Symptom frequency is rated on a 5-point Likert scale. Symptom severity is rated through Visual Analogue Scale (VAS).
From enrollment to the end of 2 weeks and 4 weeks post enrollment
Quality of Life assessment through EQ-5D-5L
Time Frame: From enrollment to the end of 2 weeks and 4 weeks post enrollment
TheEuroQol 5 Dimension 5-level (EQ-5D-5L) is a self-report survey that measures quality of life across 5 domains: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems.
From enrollment to the end of 2 weeks and 4 weeks post enrollment
Adverse event rate
Time Frame: From enrollment to the end of 2 weeks and 4 weeks post enrollment
From enrollment to the end of 2 weeks and 4 weeks post enrollment

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Jianting CAI, Doctor of Medicine, Second Affiliated Hospital, School of Medicine, Zhejiang University

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)

April 30, 2025

Primary Completion (Estimated)

June 30, 2027

Study Completion (Estimated)

June 30, 2027

Study Registration Dates

First Submitted

December 24, 2024

First Submitted That Met QC Criteria

December 24, 2024

First Posted (Actual)

January 1, 2025

Study Record Updates

Last Update Posted (Actual)

May 14, 2025

Last Update Submitted That Met QC Criteria

May 13, 2025

Last Verified

December 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

The investigators have decided not to share IPD for confidentiality purpose. Yet IPD may be shared upon reasonable request on a one to one basis.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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