Skip to content

Heartburn, Gastroesophageal Reflux Disease

A Multicenter, Double-blind, Randomized, Investigator-initiated Trial to Evaluate the Degree of Symptom Relief of Zastaprazan and Esomeprazole in Patients With Erosive Reflux Disease With Night-time Heartburn Symptoms

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07268820
Acronym
GERD
Enrollment
160
Registered
2025-12-08
Start date
2025-07-07
Completion date
2026-09-30
Last updated
2025-12-23

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

Conditions

GERD

Brief summary

Gastroesophageal reflux disease (GERD) is a condition caused by the reflux of stomach contents into the esophagus, presenting with typical symptoms such as heartburn and acid regurgitation. GERD is a chronic condition that affects quality of life, and patients with this condition are known to have a lower quality of life compared to healthy individuals. In particular, nocturnal heartburn can lead to sleep deprivation and affect daily life, as well as overall quality of life. This study aims to evaluate the efficacy of alleviating nocturnal heartburn symptoms in patients with erosive reflux disease (ERD).

Detailed description

This multicenter, double-blind, randomized, active-controlled Phase 4 study aims to exploratorily evaluate the comparative effects and safety of zastaprazan 20 mg and esomeprazole 40 mg in subjects with gastroesophageal reflux disease.

Interventions

Participants in this arm will receive zastaprazan. This group serves as the experimental treatment group exploratorily evaluating drug for GERD.

DRUGEsomeprazole

Participants in this arm will receive esomeprazole. This group serves as the active comparator treatment group exploratorily evaluating drug for GERD.

Sponsors

Incheon St.Mary's Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Korean adults aged 19 years or older as of the date of written consent 2. Those diagnosed with erosive gastroesophageal reflux disease based on upper gastrointestinal endoscopy (EGD) 3. Those who reported nighttime heartburn for more than 3 months at the time of screening (Visit 1) 4. Those who voluntarily decided to participate and provide written informed consent

Exclusion criteria

1. Those who cannot undergo upper gastrointestinal endoscopy (EGD) 2. Individuals with a history of drug or alcohol abuse (within the past year) 3. Individuals who have received other investigational products within one month prior to the screening visit (Visit 1) 4. In addition to the above, individuals with clinically significant findings that the investigator deems medically inappropriate for the present study

Design outcomes

Primary

MeasureTime frameDescription
Proportion of participants without sleep disturbance related to nighttime heartburn during the last 7 daysWeek 2This measure is based on participant-reported information collected by subject diary during the study and reflects whether sleep disturbance related to heartburn was noted over the period evaluated. Symptom severity ranges from 0 to 4, with higher scores indicating worse sleep disturbance.

Secondary

MeasureTime frameDescription
Proportion of participants without sleep disturbance related to nighttime heartburn during the last 7 daysWeek 4This measure is based on participant-reported information collected by subject diary during the study and reflects whether sleep disturbance related to heartburn was noted over the period evaluated. Symptom severity ranges from 0 to 4, with higher scores indicating worse sleep disturbance.
Mean change from baseline in Gastroesophageal Reflux Disease-Health Related Quality of Life (GERD-HRQL) scoreBaseline, Week 2, Week 4The change from baseline in GERD-HRQL scores, evaluated at Weeks 2 and 4 during the treatment period. The GERD-HRQL uses item scores ranging from 0 to 5, with higher scores indicating more severe symptoms.
Mean change from baseline in Gastrointestinal Symptom Rating Scale (GSRS) scoreBaseline, Week 2, Week 4The GSRS assesses gastrointestinal symptoms across multiple domains, with each item scored on a 1 to 7 scale, where higher scores indicate more severe symptoms.
Change from baseline in Gastroesophageal Reflux Disease Questionnaire (GerdQ) scoreBaseline, Week 2, Week 4The GerdQ evaluates symptoms using ordinal item scores; for heartburn and acid regurgitation items, higher scores indicate more frequent symptoms; each item is scored on a 0 to 3 scale based on symptom frequency over the previous week, with reverse scoring applied to upper stomach pain and nausea items.

Countries

South Korea

Contacts

Primary ContactByung-Wook Kim
gastro@catholic.ac.kr+82-1544-9004

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026