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Evaluation of white opaque substance in gastric epithelial tumor detected after H. pylori eradication by administration of vonoprazan

Evaluation of white opaque substance in gastric epithelial tumor detected after H. pylori eradication by administration of vonoprazan - Evaluation of WOS in gastric epithelial tumor detected after H. pylori eradication by administration of bonoprazain

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000032689
Enrollment
20
Registered
2018-06-01
Start date
2018-06-01
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

gastric epithelial tumor

Interventions

Vonoprazan 20 mg administration for 21 days

Sponsors

Oita Red Cross Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Planned to undergo endoscopic resection (ESD or EMR) for early gastric cancer and gastric adenomas discovered after successful eradication. 2. For early gastric cancer, absolute adaptive lesion and adaptive enlarged lesion are treated as the target lesion according to the gastric cancer treatment guideline. 3. ECOG-performance Status is 0 or 1. 4. For participation in the study, informed consent was obtained.

Exclusion criteria

Exclusion criteria: Patients within 6 months from the day of eradication 2. Patients with antacid drugs before the first observation (within 7 days) 3. Patients with lesions with ulcers and bleeding which are difficult to observe the surface of the lesion 4. Patients with severe underlying disease 5. Patients with a history of gastrectomy 6. Patients who have complicated mental illness or psychiatric symptoms and seem to be difficult to participate in the study. 7. Other patients who are deemed inappropriate for the trial responsible physician or the test sharing doctor to conduct this study

Design outcomes

Primary

MeasureTime frame
Changes in tumor WOS expression (positive proportion) before and after Vonoprazan administration.

Secondary

MeasureTime frame
Relationship between WOS expression and fasting gastric juice pH. Relationship between WOS expression and tumor histopathology (adenoma VS differentiation dominant VS undifferentiated dominant)

Countries

Japan

Contacts

Public ContactTetsuya Ueo

Oita Red Cross Hospital Gastroenterology

ueo14@athena.ocn.ne.jp0975326181

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026