Efficacy and Safety of Sodium Alginate Oral Suspension to Treat Non-erosive Gastro-esophageal Reflux Disease

February 9, 2012 updated by: Cheng-Tang Chiu, Chang Gung Memorial Hospital

A Multi-center, Double-blind, Randomized, Parallel Study to Evaluate the Efficacy and Safety of Sodium Alginate Oral Suspension (50 mg/ml) in Comparison to Omeprazole (20 mg/Cap) to Treat Non-erosive Gastro-esophageal Reflux Disease (NERD)

About 60% of patients with typical gastroesophageal reflux symptoms such as heartburn and regurgitation are considered to have non-erosive reflux disease (NERD). Patients with NERD show an overall poorer response to PPI treatment than patients with erosive reflux disease. Sodium alginate oral suspension is a medication indicated for the relief of gastroesophageal reflux symptoms. This multi-center, double blind, randomized trial aims to compare the efficacy and safety profiles of sodium alginate oral suspension (50 mg/ml) 20 ml three times daily with that of omeprazole (20 mg/capsule) 1 capsule once daily for the treatment of NERD patients in Taiwan. Efficacy assessments include percentage of patients achieving adequate relief of heartburn or regurgitation after 4 weeks treatment, improvement of reflux symptoms as assessed by reflux disease questionnaire before and after treatment, and patients overall satisfaction at the end of study. Safety assessments include incidence of adverse events and change of the laboratory test results. The study hypothesis is that treatment with sodium alginate is non-inferior to omeprazole in relieving heartburn or regurgitation symptoms of the NERD patients.

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.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This multi-center, double blind, randomized trial aims to compared the efficacy and safety profiles of sodium alginate oral suspension (50 mg/ml) 20 ml three times daily with that of omeprazole (20 mg/capsule) 1 capsule once daily for the treatment of non-erosive reflux disease (NERD) patients in Taiwan. Patients will be included into study if they are diagnosed as NERD; with heartburn or regurgitation (either one) as main symptom at least 2 days a week and had been present for ≧1 month before screening; with heartburn or regurgitation (either one) during the 7 days screening period, either with frequency for ≧4 days of mild symptom, or ≧ 2 days of moderate to severe symptom; and have signed the informed consent. Patients will be excluded if they are diagnosed as erosive gastroesophageal reflux disease (GERD), Barrett's esophagus or esophageal stricture; with active or healing gastroduodenal ulcer (except scars); with history of gastric, duodenal or esophageal surgery; with intrahepatic stone, gallstone, gallbladder sludge, hepatic or pancreatic carcinoma as evidenced by abdominal ultrasonography, with ischemic heart disease as evidenced by electrocardiogram; taking a proton pump inhibitor (PPI) within 14 days before screening, or a H2-blocker, prokinetic agent or antacid within 7 days before screening; or with clinically significant liver or kidney disease. The primary efficacy endpoint is percentage of patients achieving adequate heartburn (defined as a burning feeling or pain behind the breast bone) or regurgitation (defined as an acid taste in the mouth or unpleasant movement of material upwards from the stomach) relief at day 28 as assessed by patient diary. The secondary efficacy endpoints are percentage of patients achieving adequate heartburn or regurgitation relief at day 14; change from baseline of the reflux disease questionnaire total score at day 14 & 28; patients' overall satisfaction at the end of study; and number of antacid used during the 4-week treatment period. The safety endpoints are incidence of adverse events, and changes in laboratory test results (hematology, biochemistry, and urinalysis). The study hypothesis is that treatment with sodium alginate is non-inferior to omeprazole in relieving heartburn or regurgitation symptoms of the NERD patients.

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.
Interventional

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.
195

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

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

Study Locations

  • Taiwan
      • Taipei, Taiwan, 105
        • Chang Gung Memorial Hospital

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

16 years to 71 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with age of 20-75 years old (inclusive) in Taiwan of both genders
  • Out-patients who had been diagnosed as non-erosive gastroesophageal reflux disease (NERD)
  • Patients with heartburn or regurgitation (either one) as main symptom at least 2 days a week and had been present for > or = 1 month before screening
  • Patients with heartburn or regurgitation (either one) during the 7 days screening period, either with frequency for > or = 4 days of mild symptom, or for > or = 2 days of moderate to severe symptom
  • Patients have signed the informed consent form

Exclusion Criteria:

  • Patients with erosive gastroesophageal reflux disease (GERD), Barrett's esophagus or esophageal stricture
  • Patients with active or healing gastroduodenal ulcer (except scars)
  • Patients with history of gastric, duodenal or esophageal surgery
  • Patients with malignant disease of any kind
  • Patients with intrahepatic stone, gallstone, gallbladder sludge, hepatic or pancreatic carcinoma as evidenced by abdominal ultrasonography
  • Patients with ischemic heart disease as evidenced by electrocardiogram
  • Female patients who are pregnant or nursing mother
  • Patients with a history of allergy to any of the study drugs or their related compounds
  • Patients with a history of alcohol or drug abuse
  • Patients with clinically significant liver disease (aspartate aminotransferase (AST), alanine aminotransferase (ALT)>2 upper limits of normal)
  • Patients with clinically significant renal disease (serum creatinine >1.5 mg/dl)
  • Patients taken a proton pump inhibitor (PPI) within 14 days before screening, or a H2-blocker, prokinetic agent or antacid within 7 days before screening
  • Patients participated any investigational drug trial within 4 weeks before screening
  • Patients with any other conditions or diseases that investigator considers it is not appropriate to enter the study

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Sodium alginate
Oral suspension, 50 mg/ml
Drug: Sodium alginate
oral suspension, 50 mg/ml, 20 ml three times daily, 4 weeks
Other Names:
  • Alginos
Active Comparator: Omeprazole
20 mg/cap
Drug: Omeprazole
20 mg capsule, 1 capsule once daily, 4 weeks
Other Names:
  • Omelon

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
Percentage of patients achieving adequate heartburn or regurgitation relief at day 28 as assessed by patient diary
Time Frame: 4 weeks
Adequate heartburn or regurgitation relief is defined as no more than 1 day of mild heartburn or regurgitation episodes in the last 7 days before day 28
4 weeks

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
Percentage of patients achieving adequate heartburn or regurgitation relief at day 14 as assessed by patient diar
Time Frame: 2 weeks
Adequate heartburn or regurgitation relief is defined as no more than 1 day of mild heartburn or regurgitation episodes in the last 7 days before day 14
2 weeks
Change from baseline of the Reflux Disease Questionnaire (RDQ) total score at days 14 & 28
Time Frame: 2 and 4 weeks
RDQ is a 12-item self-administered questionnaire and there are 3 subscales that evaluate frequency and severity of heartburn, regurgitation and dyspepsia. Each item is scored on a 6-point Likert scale ranging from 0 to 5. The RDQ total scores are determined by the sum of 12-item scores.
2 and 4 weeks
Patients' overall satisfaction at the end of study
Time Frame: 4 weeks
The overall satisfaction is categorized as:0=very poor; 1=poor; 2=unsatisfactory; 3=satisfactory; 4=good; 5=very good
4 weeks
Number of antacid used during the treatment period
Time Frame: 4 weeks
4 weeks

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.
Chang Gung Memorial Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Cheng-Tang Chiu, MD, Chief, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

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.
October 1, 2010

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.
January 1, 2012

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.
January 1, 2012

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).
January 2, 2011

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.
April 17, 2011

First Posted (Estimate)

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.
April 19, 2011

Study Record Updates

Last Update Posted (Estimate)

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.
February 10, 2012

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.
February 9, 2012

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.
February 1, 2012

More Information

Terms related to this study

Keywords

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.
  • TTYALG1001
  • CGMH-IRB-99-1495A3 (Other Identifier: ChangGungMH)

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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