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CompletedNCT01338077Updated Feb 10, 2012

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

A Phase 3 interventional study of Sodium alginate and Omeprazole in Gastroesophageal Reflux Disease and Heartburn, sponsored by Chang Gung Memorial Hospital. Completed at 1 site in Taiwan. Open to participants aged 20 Years to 75 Years. Per ClinicalTrials.gov, last updated 2012-02-10.

Sponsored by Chang Gung Memorial Hospital · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
195
Allocation
Randomized
Ages
20 Years to 75 Years
Sex
All
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Study summary

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.

Read the 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.

02

Conditions studied

  • Gastroesophageal Reflux Disease
  • Heartburn

Keywords

  • Alginate
  • Gastroesophageal reflux disease
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In context

Gastroesophageal Reflux

1,067 studies on the registry are indexed under Gastroesophageal Reflux; 188 are open to participants now.

This study's enrollment of 195 is above the median of 72 across 712 interventional studies indexed under Gastroesophageal Reflux.

Browse Gastroesophageal Reflux studies →

Lead sponsor

Chang Gung Memorial Hospital is the lead sponsor of 1,064 studies on the registry; 235 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
20 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

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
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
195 participants (actual)

Study arms

  • Experimental
    Sodium alginate

    Oral suspension, 50 mg/ml

    Drug: Sodium alginate

  • Active comparator
    Omeprazole

    20 mg/cap

    Drug: Omeprazole

Interventions

  • DrugSodium alginate

    oral suspension, 50 mg/ml, 20 ml three times daily, 4 weeks

    Also known as: Alginos

  • DrugOmeprazole

    20 mg capsule, 1 capsule once daily, 4 weeks

    Also known as: Omelon

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What researchers measure

Primary outcomes

  1. Percentage of patients achieving adequate heartburn or regurgitation relief at day 28 as assessed by patient diary

    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

    Time frame: 4 weeks

Secondary outcomes

  1. Percentage of patients achieving adequate heartburn or regurgitation relief at day 14 as assessed by patient diar

    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

    Time frame: 2 weeks

  2. Change from baseline of the Reflux Disease Questionnaire (RDQ) total score at days 14 & 28

    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.

    Time frame: 2 and 4 weeks

  3. Patients' overall satisfaction at the end of study

    The overall satisfaction is categorized as:0=very poor; 1=poor; 2=unsatisfactory; 3=satisfactory; 4=good; 5=very good

    Time frame: 4 weeks

  4. Number of antacid used during the treatment period

    Time frame: 4 weeks

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Study locations

1 site
  • Chang Gung Memorial Hospital
    Taipei, 105, Taiwan
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References and documents

Publications

  • Chiu CT, Hsu CM, Wang CC, Chang JJ, Sung CM, Lin CJ, Chen LW, Su MY, Chen TH. Randomised clinical trial: sodium alginate oral suspension is non-inferior to omeprazole in the treatment of patients with non-erosive gastroesophageal disease. Aliment Pharmacol Ther. 2013 Nov;38(9):1054-64. doi: 10.1111/apt.12482. Epub 2013 Sep 11. PubMed 24024757 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 10, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01338077
Lead sponsor
Chang Gung Memorial Hospital
Responsible party
Cheng-Tang Chiu (Chief, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital) — Principal investigator
First posted
Apr 19, 2011
Start date
Oct 2010
Primary completion
Jan 2012
Completion
Jan 2012
Last update
Feb 10, 2012

Study contacts

Cheng-Tang Chiu, MD
principal investigator · Chief, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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