Estimation of the Prevalence of Celiac Disease Among Japanese Pediatric Patients Diagnosed With Irritable Bowel Syndrome or Functional Dyspepsia: A Multicenter Prospective Observational Study

Estimation of the Prevalence of Celiac Disease Among Japanese Pediatric Patients Diagnosed With Irritable Bowel Syndrome or Functional Dyspepsia: A Multicenter Prospective Observational Study - Estimation of the Prevalence of Celiac Disease Among Japanese Pediatric Patients Diagnosed With Irritable Bowel Syndrome or Functional Dyspepsia

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000060888

Enrollment

200

Registered

2026-04-01

Start date

2026-04-01

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

Irritable Bowel Syndrome and Functional Dyspepsia

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Japanese patients under 15-year-old age diagnosed as IBS according to Rome 4 criteria. Japanese patients under 15-year-old age diagnosed as FD according to Rome 4 criteria.

Exclusion criteria

Exclusion criteria: Patients that physicians have deemed inappropriate due to their complications or treatment history.

Design outcomes

Primary

Measure	Time frame
The positive rate of serum anti-tissue transglutaminase IgA antibody (tTG-IgA) among pediatric patients diagnosed with IBS or FD according to Rome IV criteria.	—

Secondary

Measure	Time frame
The prevalence of confirmed Celiac disease among tTG-IgA positive patients.	—

Countries

Japan

Contacts

Public ContactYugo Takaki

Japanese Red Cross Kumamoto Hospital Department of Pediatric Gastroenterology and Hepatology

tturmso@yahoo.co.jp0963842111

Outcome results