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A Study to Evaluate Tegoprazan as a Diagnostic Tool for GERD

Diagnostic Value of Early Response to Tegoprazan in Symptomatic GERD Patients: An Exploratory Clinical Study

Status
Not yet recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07826455
Enrollment
100
Registered
2026-09-17
Start date
2026-09-01
Completion date
2028-07-31
Last updated
2026-09-17

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

Conditions

GERD (Gastroesophageal Reflux Disease)

Brief summary

The purpose of this study is to evaluate the diagnostic value of tegoprazan for GERD. Patients experiencing typical GERD symptoms, such as heartburn and acid regurgitation, will take either tegoprazan or a placebo once daily for 1 week. Investigators will compare the short-term symptom improvement between the two groups to determine if an early response to tegoprazan can help diagnose GERD.

Interventions

Tegoprazan 50 mg tablet will be orally administered once daily for 7 days.

DRUGPlacebo

Placebo tablet will be orally administered once daily for 7 days.

Sponsors

HK inno.N Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
19 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Patients aged 19 to 75 years who have experienced symptoms of acid regurgitation or heartburn at least twice a week starting at least 3 months prior to screening. * Baseline Symptom Assessment Questionnaire score of at least 6 at screening. * 7-Day Symptom Assessment Questionnaire score of at least 4 at randomization.

Exclusion criteria

* Known hypersensitivity to Potassium-Competitive Acid Blockers (P-CABs) or benzimidazoles. * Presence of gastrointestinal warning symptoms (e.g., progressive dysphagia, bleeding, unintentional weight loss within 3 months, hematemesis, anemia, hematochezia, or rectal bleeding) without a confirmed negative tumor finding on endoscopy. * History of or planned gastrointestinal surgery that potentially affects gastric acid secretion. * Diagnosed with Zollinger-Ellison syndrome or other gastric acid secretion disorders. * Endoscopic evidence of esophageal stricture, ulcer stenosis, esophageal varices, Barrett's esophagus (\> 3 cm), eosinophilic esophagitis, gastrointestinal bleeding, active peptic ulcer, or malignant tumor. * Clinically significant hepatic or renal impairment (AST, ALT, ALP, GGT, total bilirubin, and creatinine greater than or equal to 2 times the upper limit of normal \[ULN\]) at Screening. * Use of any prohibited medications within the specified wash-out periods or requiring continuous use during the study: 1. Within 2 weeks prior to screening: Acid suppressants (PPIs, P-CABs). 2. Within 1 week prior to screening: Prokinetics, H2 receptor antagonists, gastric mucosal protectors, antacids, or anticholinergics. 3. During the study period (continuous use): Corticosteroids, NSAIDs, antithrombotics, anticoagulants, antipsychotics, antidepressants, or anxiolytics.

Design outcomes

Primary

MeasureTime frame
Diagnostic accuracy (Sensitivity, Specificity, Positive Predictive Value, and Negative Predictive Value) of GERD based on total symptom scoreDay 7

Secondary

MeasureTime frame
Diagnostic accuracy (Sensitivity, Specificity, Positive Predictive Value, and Negative Predictive Value) of GERD based on individual symptoms of heartburn and acid regurgitationDay 7
Diagnostic accuracy (Sensitivity, Specificity, Positive Predictive Value, and Negative Predictive Value) of GERD based on total symptom scoreDay 3
Change from baseline in the 7-day symptom assessment questionnaire score at the end of visitBaseline and Day 7 (End of Visit)
Percentage of patients based on baseline Hospital Anxiety and Depression Scale (HADS) score strata, compared by GERD diagnosisBaseline and Day 7 (End of Visit)
Change from baseline in Gastroesophageal Reflux Disease Questionnaire (GERD-Q) total score at the end of visitBaseline and Day 7 (End of Visit)
Change from baseline in Self-Evaluation Questionnaire for dyspepsia (SEQ-DYSPEPSIA) total score at the end of visitBaseline and Day 7 (End of Visit)

Contacts

CONTACTJisu Kim
jisu.kim@inno-n.com+82 31-5176-4670
CONTACTAhrong Kim
ahrong.kim@inno-n.com+82 31-5176-4666
PRINCIPAL_INVESTIGATORDo Hoon Kim

Asan Medical Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 18, 2026